Spawning conditions - Spawning season



Species Primary Data Secondary Data References
Anguilla anguilla January-July ['April', 'March', 'January', 'May', 'June', 'July', 'February'] McCleave, 1987
Anguilla anguilla March until May [Also January-February] ['February', 'March', 'January', 'May'] Fishbase, 2006
Anguilla anguilla Spawning takes place at the beginning of March ['March'] Coad, 2005
Anguilla anguilla During winter ['February', 'March', 'January'] Deelder, 1970
Anguilla anguilla November-July, peaking in January ['November', 'January', 'July'] Wang and Tzeng, 2000
Anguilla anguilla Based on all these observations, we now know that the European eel spawn primarily from March to June within a narrow ellipse whose long axis extends east-west from approximately 48° to 74°W longitude between 23° and 30° N latitude ['March', 'June'] Vincent, 2005
Alosa alosa June-July ['June', 'July'] Billard, 1997
Alosa alosa May to July ['May', 'July'] Bruslé and Quignard, 2001
Alosa alosa March to August depends on the latitude [In Europe mainly in May] ['August', 'March', 'May'] Cassou-Leins, 2000
Alosa alosa May 12 to July 12 and Between April 21 to July 11 ['April', 'May', 'July'] Acolas, 2004
Alosa alosa April-July ['April', 'May', 'July', 'June'] Maitland and Lyle, 2005
Alosa alosa All anadromous populations have common biological characteristics: the reproduction (April-July), above 11 ['April', 'July'] Aprahamian, 2001
Alosa alosa Throughout the range of the allis shad, reproduction occurs from April to July, but in Britain, May to July seems to have been the main period ['April', 'May', 'July'] Maitland and Hatton-Ellis, 2000
Alosa alosa End of May-June and also in July ['May', 'July', 'June'] Boisneau, 1990
Alosa alosa May and mid-August ['August', 'May'] Bensettiti and Gaudillat, 2002
Alosa alosa The migration in La loire is inFebruary to July. Yet, during our study, the first fish were captured on April 16, thus one month and half later. It sems that a temperature of 11°C is required for migration ['February', 'April', 'July'] Boisneau, 1985
Alosa alosa Reproduction took place between April 24th and July 11th ['April', 'July'] Acolas, 2006
Alosa fallax May-June ['May', 'June'] Billard, 1997
Alosa fallax May-June ['May', 'June'] Bensettiti and Gaudillat, 2002
Alosa fallax June-July ['June', 'July'] Bruslé and Quignard, 2001
Alosa fallax March to August depends on the latitude [In Europe mainly in May] ['August', 'March', 'May'] Cassou-Leins, 2000
Alosa fallax May until end of June ['May', 'June'] Spillmann, 1961
Alosa fallax The spawning season can last until June ['June'] Pina, 2003
Alosa fallax Twaite shad eggs, embryos and larvae occurred from late-March to mid-June, with particularly higher densities during a 5-week period from late-April through to the last week of May. ['April', 'March', 'May', 'June'] Esteves and Andrade, 2008
Alosa sapidissima April-June ['April', 'May', 'June'] Internet, 2005
Alosa sapidissima May-June, but even as late as July ['May', 'July', 'June'] Scott and Crossman, 1973
Alosa sapidissima May-June, but also from February until July ['February', 'May', 'July', 'June'] Fishbase, 2006
Alosa sapidissima In most years, spawning begins in late February and ends in early June ['February', 'June'] Olney, 2001
Alosa sapidissima May or early June ['May', 'June'] Mills, 2004
Alosa sapidissima May take place anytime between mid-March and early June ['March', 'May', 'June'] Rue, 2001
Alosa sapidissima Spring No data Anonymous, 2006 Chapter 3
Alosa sapidissima Spawning normally occurs in May and June, but may occur as late as July ['May', 'July', 'June'] Bradbury, 1999
Alosa sapidissima Spawning was detected between February 21 and May 28 in 2003 and between March 16 and May 17 in 2004 ['February', 'March', 'May'] Burdick and Hightower, 2005
Alosa sapidissima Spawning occurred between 13 May and 27 June, the peak being June in 1967 and May in 1968. ['May', 'June'] Marcy, 1972
Aphanius iberus Summer No data Billard, 1997
Aphanius iberus April-August ['April', 'May', 'August', 'June', 'July'] Keith, 2001
Aphanius iberus May to August ['August', 'May'] Oltra and Todoli, 2000
Aphanius iberus May to August ['August', 'May'] Vargas and De Sostoa, 1997
Aphanius iberus July-August ['August', 'July'] Fishbase, 2006
Aphanius iberus April-August ['April', 'May', 'August', 'June', 'July'] Maitland, 1977
Aphanius iberus May to September ['May', 'September'] Fernandez-Delgado, 1988
Valencia hispanica April-July ['April', 'May', 'July', 'June'] Keith, 2001
Valencia hispanica May-July ['May', 'July', 'June'] Caiola, 2001
Valencia hispanica April-July ['April', 'May', 'July', 'June'] Fishbase, 2006
Valencia hispanica April-July ['April', 'May', 'July', 'June'] Maitland, 1977
Barbatula barbatula April-June ['April', 'May', 'June'] Billard, 1997
Barbatula barbatula April-May ['April', 'May'] Spillmann, 1961
Barbatula barbatula April until June and sometimes July ['April', 'June', 'July'] Bruslé and Quignard, 2001
Barbatula barbatula Begin 10-12 May and end in the end of May ['May'] Skryabin, 1993
Barbatula barbatula Late April-Early August [England], May-June [Estonia], May and less June [Finland] ['April', 'August', 'May', 'June'] Saat, 2003
Barbatula barbatula April-June ['April', 'May', 'June'] Perrin, 2001
Barbatula barbatula Mainly April-May, also in March and June ['April', 'March', 'May', 'June'] Fishbase, 2006
Barbatula barbatula April-May ['April', 'May'] Losange, 1999
Barbatula barbatula April-May ['April', 'May'] Environment agency, 1996
Barbatula barbatula Peak in 14 May ['May'] Bagenal, 1971
Barbatula barbatula In the Lake District, the fish spawns in May, though some breeding may take place in April and June, and a few ripe females have been found as late as July [Seasonal changes in the ratio gonad weight: body weight supports the conclusion that May is the month when most fish breed] ['April', 'May', 'July', 'June'] Smyly, 1955
Barbatula barbatula Spawning usually occurs in May, it may de delayed to early June in cold years ['May', 'June'] Sauvonsaari, 1971
Cobitis taenia April-June ['April', 'May', 'June'] Billard, 1997
Cobitis taenia Mid-April to Mid-August [Experimental conditions] ['April', 'August'] Bohlen, 1999
Cobitis taenia April until June ['April', 'June'] Bruslé and Quignard, 2001
Cobitis taenia End-April to June ['April', 'June'] Spillmann, 1961
Cobitis taenia Late June-Middle of July [Estonia] ['June', 'July'] Vaino and Saat, 2003
Cobitis taenia April-June ['April', 'May', 'June'] Perrin, 2001
Cobitis taenia April-June ['April', 'May', 'June'] Coad, 2006
Cobitis taenia From April to July ['April', 'July'] Bolhen and Ritterbusch, 2000
Cobitis taenia April to beginning of July ['April', 'July'] Terver, 1984
Cobitis taenia April to July ['April', 'July'] Fishbase, 2006
Cobitis taenia In Piedmont (Italy=, the reproductive period spans from April to June ['April', 'June'] Lodi and Malacarne, 1990
Cobitis taenia The peak of spawning occured in early June when several running females were caught ['June'] Marconato and Rasotto, 1989
Cobitis taenia April to June ['April', 'June'] Bensettiti and Gaudillat, 2002
Cobitis paludica Late March to early July ['March', 'July'] Oliva-Paterna, 2002
Cobitis paludica Starts in May throughout July ['May', 'July'] Perdices and Doadrio, 1977
Blicca bjoerkna May-July ['May', 'July', 'June'] Billard, 1997
Blicca bjoerkna June ['June'] Spillmann, 1961
Blicca bjoerkna May-June ['May', 'June'] Rinchard, 1996
Blicca bjoerkna May-June-July ['May', 'July', 'June'] Bruslé and Quignard, 2001
Blicca bjoerkna Starts in May-June and ends up to July ['May', 'July', 'June'] Kestemont, 2001
Blicca bjoerkna May-June [Sometime July] ['May', 'July', 'June'] Fishbase, 2006
Blicca bjoerkna June ['June'] Molls, 1999
Blicca bjoerkna May-July ['May', 'July', 'June'] Mann, 1996
Blicca bjoerkna May-June ['May', 'June'] Environment agency, 1996
Blicca bjoerkna In 1974, the white bream spawned from 10 June to 1 July and in 1975 sapwning started at the end of May and lasted about 20 June ['May', 'July', 'June'] Hansen, 1980
Blicca bjoerkna May-June ['May', 'June'] Cattanéo, 2001
Blicca bjoerkna The experiments with female bream eggs were started on 24 May (three females) and 29 May (three females) and with female white bream eggs on 5 June (four females) due to the earlier spawning of bream in Estonia […] White bream starts spawning 2-3 weeks later than bream, usually at water temperature of 16-18°C, and spawning can last until the middle of July ['May', 'July', 'June'] Vetemaa, 2008
Abramis brama May-July ['May', 'July', 'June'] Billard, 1997
Abramis brama May-June ['May', 'June'] Spillmann, 1961
Abramis brama Begins in early May and mass spawing occurs in mid-May ['May'] Sidorova, 2005
Abramis brama Mid-May until Mid-June ['May', 'June'] Internet, 2005
Abramis brama Usually May-June ['May', 'June'] Olivier, 2001
Abramis brama April to June ['April', 'June'] Backiel and Zawiska, 1968
Abramis brama May, 3 until June, 3 ['May', 'June'] Shestopalova, 1978
Abramis brama May-June ['May', 'June'] Mann, 1996
Abramis brama May-June ['May', 'June'] Environment agency, 1996
Abramis brama Spawning takes place during the first half of June ['June'] Herzig and Winkler, 1986
Abramis brama Lake bream usually spawn in the beginning of June ['June'] Kucharczyk, 1997
Abramis brama Spawns in spring. Spawning begins at the end of March and extends till the first half of June. In heated waters spawning may take place in winter and early spring ['April', 'March', 'January', 'May', 'June', 'February'] Brylinska and Boron, 2004
Abramis brama The experiments with female bream eggs were started on 24 May (three females) and 29 May (three females) and with female white bream eggs on 5 June (four females) due to the earlier spawning of bream in Estonia […] The spawning of bream in south-east Estonia usually begins at the water temperature of c. 13°C, in most cases in the second half of May ['May', 'June'] Vetemaa, 2008
Abramis brama Bream started to spawn 16-17 days later than roach, the median dates being 16 May for rivers and 22 May for lakes. One half of all measurements fell into a range of 16 days between 13 and 28 May. ['May'] Noges and Järvet, 2005
Abramis brama Bream females in Lake Sniardwy commence spawning in May-June ['May', 'June'] Kopiejewska, 1989
Abramis brama In the Trent, the main hatching period for bream occurred around the second week of June, with the majority of hatching complete by mid-July ['June', 'July'] Nunn, 2007
Abramis brama May and June on bream spawning grounds in the Kortowskie Lake ['May', 'June'] Kucharczyk, 2005
Alburnoides bipunctatus End -May to End-July ['May', 'July'] Yildirim, 1999
Alburnoides bipunctatus April-June ['April', 'May', 'June'] Billard, 1997
Alburnoides bipunctatus End April-End July ['April', 'July'] Bruslé and Quignard, 2001
Alburnoides bipunctatus April-June ['April', 'May', 'June'] Coad, 2005
Alburnoides bipunctatus April-June ['April', 'May', 'June'] Spillmann, 1961
Alburnoides bipunctatus April until June ['April', 'June'] Persat, 2001
Alburnoides bipunctatus May-June ['May', 'June'] Mann, 1996
Alburnoides bipunctatus May-June ['May', 'June'] Terver, 1984
Alburnoides bipunctatus May-June ['May', 'June'] Cattanéo, 2001
Alburnoides bipunctatus Macroscopical indication of spawning in progress (spawning tubercles, leaking gonadal products) was apparent only in fish collected from May 2 to June 25 […] ['May', 'June'] Polacik and Kovac, 2006
Alburnus alburnus April-June ['April', 'May', 'June'] Billard, 1997
Alburnus alburnus April-June ['April', 'May', 'June'] Bruslé and Quignard, 2001
Alburnus alburnus April-June ['April', 'May', 'June'] Spillmann, 1961
Alburnus alburnus April-June ['April', 'May', 'June'] Rinchard, 1996
Alburnus alburnus Start only in Mid-May ['May'] Rinchard and Kestemont, 1996
Alburnus alburnus April to August, mainly May and June ['April', 'August', 'May', 'June'] Carrell and Olivier, 2001
Alburnus alburnus May-July ['May', 'July', 'June'] Mann, 1996
Alburnus alburnus Spawning in Europe takes place from May to July ['May', 'July'] Coad, 2006
Alburnus alburnus April-July ['April', 'May', 'July', 'June'] Environment agency, 1996
Alburnus alburnus May to beginning of July ['May', 'July'] Terver, 1984
Alburnus alburnus June and July ['June', 'July'] Winnicki and Korzelecka, 1997
Alburnus alburnus June-July ['June', 'July'] Kamler and Wolnicki, 2006
Alburnus alburnus May-June ['May', 'June'] Cattanéo, 2001
Alburnus alburnus April-June (August) ['April', 'August', 'June'] Agence de l'eau,
Alburnus alburnus In the Trent, the initial hatching period was between mid-June and mid-July, with successive cohorts appearing at intervals thereafter ['June', 'July'] Nunn, 2007
Aristichthys nobilis May-July ['May', 'July', 'June'] Horvath, 1992
Aristichthys nobilis Spawning period continues from April to July [Mass spawning takes place at the end of May and in the beginning of June] ['April', 'May', 'July', 'June'] Abdusamadov, 1986
Aristichthys nobilis April-June, peaking in lale May in Asia, in their study in June ['April', 'May', 'June'] Schrank, 2001
Aristichthys nobilis In China, generally spawn between April and June, peaking in late May [Initiated by rising water levels following the heavy rains that occur in spring] ['April', 'May', 'June'] Kolar, 2005
Aristichthys nobilis The spawning season in China extends from April to June, peaking in late May ['April', 'May', 'June'] Jennigs, 1988
Aristichthys nobilis In Asia, bighead carp generally spawn between April and June with a peak in late May ['April', 'May', 'June'] Schrank, 1999
Aristichthys nobilis The grass carp spawns earlier, at a lower temperature than silver carp and big head No data Ciolac, 2004
Aristichthys nobilis In the Changjiang River drainage, bighead carp begins to spawn in middle or late May ['May'] Naca, 1989
Aspius aspius April-June ['April', 'May', 'June'] Billard, 1997
Aspius aspius Mid-February to late March ['February', 'March'] Coad, 2005
Aspius aspius April-May and beginning June ['April', 'May', 'June'] Bruslé and Quignard, 2001
Aspius aspius April to June ['April', 'June'] Keith and Allardi, 2001
Aspius aspius April-May ['April', 'May'] Mann, 1996
Aspius aspius First half of April in Polish part and as earlt as March in German part ['April', 'March'] Kompowski et Neja, 2004
Aspius aspius Late March/April ['April', 'March'] Fredrich, 2003
Aspius aspius April to June, according to the latitude ['April', 'June'] Bensettiti and Gaudillat, 2002
Aspius aspius March-May ['April', 'March', 'May'] Kamler and Wolnicki, 2006
Barbus barbus April-June ['April', 'May', 'June'] Billard, 1997
Barbus barbus A first spawning activity starts 3 May. A second one on 10 May, and no further spawning activity was observed from 13 May till early summer (mid-July) ['August', 'May', 'July', 'September'] Baras, 1995
Barbus barbus May-June ['May', 'June'] Philippart, 1989
Barbus barbus May-June-Beginning of July and even April in southern region ['April', 'May', 'July', 'June'] Bruslé and Quignard, 2001
Barbus barbus End of April to Mid-June ['April', 'June'] Spillmann, 1961
Barbus barbus Mid-May to mid-June ['May', 'June'] Philippart, 1987
Barbus barbus Late May to June ['May', 'June'] Hancock, 1976
Barbus barbus April to July ['April', 'July'] Berrebi, 2001
Barbus barbus June ['June'] Mann, 1996
Barbus barbus April to June up to July ['April', 'June', 'July'] Fishbase, 2006
Barbus barbus May-July ['May', 'July', 'June'] Environment agency, 1996
Barbus barbus The earliest spawning activity took place in 1993 (28 April) and the latest in 1996 (30 May) ['April', 'May'] Baras and Philippart, 1999
Barbus barbus End of May, beginning of June ['May', 'June'] Poncin, 1987
Barbus barbus May-July (August) ['August', 'May', 'July'] Kamler and Wolnicki, 2006
Barbus barbus May-June ['May', 'June'] Cattanéo, 2001
Carassius auratus April trough July ['April', 'July'] Internet, 2005
Carassius auratus First warm days of spring ['April', 'May', 'June'] Horvath, 1992
Carassius auratus May 1 until June 9 ['May', 'June'] Kobayashi, 1986
Carassius auratus Mid-March until End of June ['March', 'June'] Bruslé and Quignard, 2001
Carassius auratus March until June ['March', 'June'] Billard, 1997
Carassius auratus June-July ['June', 'July'] Persat, 2001
Carassius auratus May-June ['May', 'June'] Scott and Crossman, 1973
Carassius auratus Spring and summer ['August', 'July', 'September'] Scholfield, 2005
Carassius auratus Begins early in the spring and occurs at frequent intervals from April to August ['April', 'August', 'May', 'June'] Battle, 1940
Carassius auratus June-July ['June', 'July'] Kestemont and Mélard, 1994
Carassius auratus Spawning season of goldfish begins in spring and lasts up to the end of summer ['April', 'May', 'September', 'August', 'June', 'July'] Sczerbowski and Szczerbowski, 1996
Carassius auratus Mid-April to Mid-August, usually May-June ['April', 'August', 'May', 'June'] Goodyear, 1982
Carassius carassius March-June ['April', 'March', 'May', 'June'] Billard, 1997
Carassius carassius June-July ['June', 'July'] Spillmann, 1961
Carassius carassius From late spring trough mid-summer ['April', 'May', 'September', 'August', 'June', 'July'] Holopainen, 1997
Carassius carassius May-June, April-June [Southern Region] ['April', 'May', 'June'] Bruslé and Quignard, 2001
Carassius carassius Starts in May-June and and continues in summer ['May', 'September', 'August', 'June', 'July'] Persat, 2001
Carassius carassius May-June ['May', 'June'] Mann, 1996
Carassius carassius May-June ['May', 'June'] Environment agency, 1996
Carassius carassius May-June ['May', 'June'] Fishbase, 2006
Carassius carassius Spawn from the end of March to early April in Central and central eastern part of China, from April to May in Northern China, and in June on northeastern China. ['April', 'March', 'May', 'June'] Naca, 1989
Carassius carassius Spawn in May, June and July. Peak of spawning occurs between 20 May and 20 July, depending on geographic position ['May', 'July', 'June'] Sczerbowski and Szczerbowski, 1996
Carassius carassius Between May and July ['May', 'July'] Laurila and Holopainen, 1990
Chondrostoma nasus February-April ['February', 'April', 'March'] Billard, 1997
Chondrostoma nasus End of February to April ['February', 'April'] Spillmann, 1961
Chondrostoma nasus March-May but even in February [Southern region] ['February', 'March', 'May'] Bruslé and Quignard, 2001
Chondrostoma nasus April ['April'] Prokes and Penaz, 1978
Chondrostoma nasus April [Also in Ferbruary and March] ['April', 'March'] Fishbase, 2006
Chondrostoma nasus Late March/April ['April', 'March'] Kamler, 1998
Chondrostoma nasus April ['April'] Mann, 1996
Chondrostoma nasus March-April ['April', 'March'] Schiemer, 2003
Chondrostoma nasus April ['April'] Kamler and Keckeis, 2000
Chondrostoma nasus April ['April'] Terver, 1984
Chondrostoma nasus 21 st/22 nd April, in two rivers this species reproduced repeatedly on two other occassion 10/12 May and on 26/28 May ['April', 'May'] Zbinden and Maier, 1996
Chondrostoma nasus April in Czech Republic ['April'] Penaz, 1974
Chondrostoma nasus Occurs mainly in April ['April'] Keckeis, 2001
Chondrostoma nasus March-April ['April', 'March'] Kamler and Wolnicki, 2006
Chondrostoma nasus Potential spawning time in March-April and May ['April', 'March', 'May'] Winkler, 1997
Chondrostoma nasus March-April ['April', 'March'] Cattanéo, 2001
Chondrostoma nasus March-April ['April', 'March'] Ahnelt and Keckeis, 1994
Chondrostoma nasus The fish spawn in spring (April, May) ['April', 'May', 'June'] Sysa, 2006
Chondrostoma nasus 12-27 April [Moselle, France], 15 April-5 May [Kuban], 22 April [Don], 10-20 April [Moskva], 10-20 April [Vistula], April [Dunajec], 16 April [Vistula], 19 April [Vistula], 20 April [Vistula], according to various authors ['April', 'May'] Prawochenski, 1964
Chondrostoma toxostoma April ['April'] Billard, 1997
Chondrostoma toxostoma April ['April'] Bruslé and Quignard, 2001
Chondrostoma toxostoma April ['April'] Spillmann, 1961
Chondrostoma toxostoma End of May, beginning of July [30 or 40 days after Hotu] ['May', 'July'] Gozlan and Chappaz, 2001
Chondrostoma toxostoma March to May, up to June ['March', 'May', 'June'] Bensettiti and Gaudillat, 2002
Chondrostoma toxostoma From March to May, and upto June ['March', 'May', 'June'] Internet
Ctenopharyngodon idella May-July ['May', 'July', 'June'] Horvath, 1992
Ctenopharyngodon idella April until August ['April', 'August'] Bruslé and Quignard, 2001
Ctenopharyngodon idella Spawning period continues from April to July [Mass spawning takes place at the end of May and in the beginning of June] ['April', 'May', 'July', 'June'] Abdusamadov, 1986
Ctenopharyngodon idella Begins in June, extends into July and sometimes event the first days of August ['August', 'June', 'July'] Krykhtin and Gorbach, 1982
Ctenopharyngodon idella All five accounts describe spawning as taking place in rivers during spring or early summer [Diverses sources: May-June in West River, China, Usually July, River Tone, Japan, July in Cho-shui Creek, Taiwan, Thought to be late Paril onwards, Amu-Darya River, Russia, June-July in Kuban River, Russia] ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Cross, 1973
Ctenopharyngodon idella The grass carp spawns earlier, at a lower temperature than silver carp and big head No data Ciolac, 2004
Ctenopharyngodon idella White amur eggs are found in the beginning of June through the beginning of July ['June', 'July'] Gorbach and Krykhtin, 1988
Ctenopharyngodon idella A well-marked and limited season characterizes grass carp spawning in temperature climates. The breeding season expands and becomes less distinct in tropical areas. Mature females occur in middle Amur River of the USSR from late may to early August with breeding peaks during late June and early July. The indigeneous Chinese populations spawn from late April to June in the Yangtzed River and from April to September in the Pearl and West River breed from the end of May to the middle of June. The naturalized population of the Tone River, Japan reproduces from June to August with peak activity from late June to mid-July ['April', 'May', 'September', 'August', 'June', 'July'] Shireman and Smith, 1983
Ctenopharyngodon idella In the Changjiang River drainage, silver carp and grass carp generally starts spawning in late April or early May ['April', 'May'] Naca, 1989
Cyprinus carpio April-June ['April', 'May', 'June'] Horvath, 1992
Cyprinus carpio May-June ['May', 'June'] Billard, 1997
Cyprinus carpio March to July [Peak spawning in May through July] ['March', 'May', 'July'] Internet, 2005
Cyprinus carpio May-July [March-August] ['August', 'March', 'May', 'July'] Bruslé and Quignard, 2001
Cyprinus carpio May ['May'] Bieniarz, 1978
Cyprinus carpio May-July ['May', 'July', 'June'] Lafaille and Crivelli, 2001
Cyprinus carpio Carp spawn in the spring and summer […] ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Cyprinus carpio May-July ['May', 'July', 'June'] Mann, 1996
Cyprinus carpio May-July ['May', 'July', 'June'] Environment agency, 1996
Cyprinus carpio May-July ['May', 'July', 'June'] Herzig and Winkler, 1986
Cyprinus carpio Spawn from the end of March to early April in Central and central eastern part of China, from April to May in Northern China, and in June on northeastern China. ['April', 'March', 'May', 'June'] Naca, 1989
Cyprinus carpio The spawning of carp in the Camargue begins in March and ens generally in August: for Europe this is the longest known spawing period ['August', 'March'] Crivelli, 1981
Cyprinus carpio Mean peak spawning 27 May [Range: 21 April - 26 June] in Lake Oahe, South and North Dakota ['April', 'May', 'June'] June, 1977
Cyprinus carpio The studies were conducted in experimental ponds at the Fish and Aquaculture Research station, Dor. All the fish spawned within a single week in April. ['April'] Hulata, 1974
Cyprinus carpio May-August at 52-90°F, peak spawning occurs in late Mat-early June at 65-73°F, spawning may extend throughout summer subject to interruption by cool weather ['May', 'September', 'August', 'June', 'July'] Goodyear, 1982
Cyprinus carpio In May, the natural spawning period for this fish species ['May'] Brzuska and Bialowas, 2002
Gobio gobio May-June ['May', 'June'] Billard, 1997
Gobio gobio Mid-April until End of August, with a peak in May-June ['April', 'August', 'May', 'June'] Rinchard, 1996
Gobio gobio April-May to June-July and Mid-August ['April', 'May', 'August', 'June', 'July'] Bruslé and Quignard, 2001
Gobio gobio April to June [France] ['April', 'June'] Kennedy and Fitzmaurice, 1972
Gobio gobio May-June ['May', 'June'] Spillmann, 1961
Gobio gobio April to July [Peak in May-june] ['April', 'May', 'July'] Rosechhi and Kestemont, 2001
Gobio gobio May-July ['May', 'July', 'June'] Mann, 1996
Gobio gobio April-July ['April', 'May', 'July', 'June'] Rosecchi, 2001
Gobio gobio April-August ['April', 'May', 'August', 'June', 'July'] Environment agency, 1996
Gobio gobio Spawn in France between April and May. In the Don River, spawning was observed at the turn of April and May. In the waters of Ireland, spawn from lata May till late June ['April', 'May', 'June'] Penaz and Prokes, 1978
Gobio gobio (April) May-June ['April', 'May', 'June'] Kamler and Wolnicki, 2006
Gobio gobio May-June ['May', 'June'] Cattanéo, 2001
Gobio gobio In the Trent, the main hatching period for gudgeon was between late May and mid-June, with smaller numbers of fish from subsequent cohorts appearing at intervals therefater ['May', 'June'] Nunn, 2007
Gobio gobio Pond au printemps et en été […] elle variera donc selon la latitude, l'altitude et les différences annuelles des températures printanières […] C'est ainsi que dans les Dombes, la ponte peut commencer dès la seconde quinzaine d'avril alors que dans la Montagne Noire il faut attendre la seconde quinzaine de juin ou même le début de juillet. La période de ponte s'échève début juin dans les eaux relativement chaudes alors qu'elle peut durer jusqu'en septembre dans les eaux froides. Dans le Sud de l'Angleterre, la ponte peut débuter en fin avril (Tamise), mais en Irlande, elle ne commencera qu'en mai ou en juin No data Brunet and Hoestlandt, 1972
Hypophthalmichthys molitrix May-July ['May', 'July', 'June'] Horvath, 1992
Hypophthalmichthys molitrix June-July ['June', 'July'] Barbier, 2001
Hypophthalmichthys molitrix Spawning period continues from April to July [Mass spawning takes place at the end of May and in the beginning of June] ['April', 'May', 'July', 'June'] Abdusamadov, 1986
Hypophthalmichthys molitrix Begins in June, extends into July and sometimes event the first days of August ['August', 'June', 'July'] Krykhtin and Gorbach, 1982
Hypophthalmichthys molitrix Mid May through Mid-June in Arkansas, May through July in the Terek River ['May', 'July', 'June'] Kolar, 2005
Hypophthalmichthys molitrix The grass carp spawns earlier, at a lower temperature than silver carp and big head No data Ciolac, 2004
Hypophthalmichthys molitrix Occurs in June through July, mainly from the second half of June to the first half of July ['June', 'July'] Gorbach and Kryhtin, 1988
Hypophthalmichthys molitrix In the Changjiang River drainage, silver carp and grass carp generally starts spawning in late April or early May ['April', 'May'] Naca, 1989
Leucaspius delineatus April-May ['April', 'May'] Billard, 1997
Leucaspius delineatus April-May and July-August ['April', 'August', 'May', 'July'] Bruslé and Quignard, 2001
Leucaspius delineatus March to September ['March', 'September'] Coad, 2005
Leucaspius delineatus Mid-May to Mid-July ['May', 'July'] Le Louarn, 2001
Leucaspius delineatus June to August ['August', 'June'] Cassou and Le Louarn, 1991
Leucaspius delineatus Commences in May, depedning on thermal conditions, and last until August ['August', 'May'] Bonislawska, 1999
Leucaspius delineatus May to July ['May', 'July'] Agence de l'eau,
Leuciscus cephalus April-June ['April', 'May', 'June'] Billard, 1997
Leuciscus cephalus April-July but vary from May-June to May-September ['April', 'May', 'September', 'June', 'July'] Kalkan, 2005
Leuciscus cephalus April to June ['April', 'June'] Bruslé and Quignard, 2001
Leuciscus cephalus April to Mid-June ['April', 'June'] Calta, 2000
Leuciscus cephalus May to late June ['May', 'June'] Unlu and Balci, 1993
Leuciscus cephalus From mid-April to mid-June ['April', 'June'] Changeux and Le Louarn, 2001
Leuciscus cephalus May [Also April and June] ['April', 'May', 'June'] Fishbase, 2006
Leuciscus cephalus May-July ['May', 'July', 'June'] Mann, 1996
Leuciscus cephalus May-July ['May', 'July', 'June'] Environment agency, 1996
Leuciscus cephalus May-June ['May', 'June'] Terver, 1984
Leuciscus cephalus Spawninh took place between March and April [Warm climate in southern Turkey] ['April', 'March'] Sasi, 2003
Leuciscus cephalus Spawning occurred from the end of May into June ['May', 'June'] Mann, 1976
Leuciscus cephalus May-June ['May', 'June'] Kamler and Wolnicki, 2006
Leuciscus cephalus Between May and July ['May', 'July'] Unver, 1998
Leuciscus cephalus May-June ['May', 'June'] Cattanéo, 2001
Leuciscus cephalus In European temperate waters chub spawn in spring, usually in May and June ['April', 'May', 'June'] Zelepien, 1997
Leuciscus cephalus In both years of he study, fish began to spawn on May 15 and the spawning continued to the end of July ['May', 'July'] Erdogan, 2002
Leuciscus cephalus Initial hatching took place between mid-June and mid-July, successive cohorts appearing at intervals thereafter ['June', 'July'] Nunn, 2007
Leuciscus cephalus Spawning occurred between April and May […] Other studies : mainly in May and June, but also as late as September (in Kizilirmak River), or as early as April ['April', 'September', 'May', 'June'] Koc, 2007
Leuciscus idus Spring No data Billard, 1997
Leuciscus idus Spring No data Spillmann, 1961
Leuciscus idus March-April ['April', 'March'] Kestemont, 2001
Leuciscus idus May [From March to June] ['March', 'May', 'June'] Fishbase, 2006
Leuciscus idus April-May ['April', 'May'] Mann, 1996
Leuciscus idus Late winter or early spring ['April', 'March', 'January', 'May', 'June', 'February'] Fredrich, 2003
Leuciscus idus April-May ['April', 'May'] Kamler and Wolnicki, 2006
Leuciscus idus In southern and central Europe ide begin spawning in the second half of March or at the beginning of April. In nothern Europe and Siberia, spawning begins later - in the middle of May, or in June ['April', 'March', 'May', 'June'] Witkowski, 1997
Leuciscus idus March-April ['April', 'March'] Kestemont and Mélard, 1994
Leuciscus idus Spring No data Kuliskova, 2009
Leuciscus leuciscus March-April ['April', 'March'] Billard, 1997
Leuciscus leuciscus February until May ['February', 'May'] Spillmann, 1961
Leuciscus leuciscus End of March-Beginning of April until May-June ['April', 'March', 'May', 'June'] Bruslé and Quignard, 2001
Leuciscus leuciscus March-April ['April', 'March'] Persat, 2001
Leuciscus leuciscus March-April ['April', 'March'] Fishbase, 2006
Leuciscus leuciscus March-April ['April', 'March'] Mills, 1986
Leuciscus leuciscus February-April ['February', 'April', 'March'] Mann, 1996
Leuciscus leuciscus Might spawn in early March, possibly even in February ['February', 'March'] Kennedy, 1969
Leuciscus leuciscus March-April ['April', 'March'] Environment agency, 1996
Leuciscus leuciscus March-April ['April', 'March'] Terver, 1984
Leuciscus leuciscus March / April-May ['April', 'March', 'May'] Herzig and Winkler, 1986
Leuciscus leuciscus Varies according to latitude, mainly March-April [Full range February to July] ['February', 'April', 'March', 'July'] Lobon-cervia, 1996
Leuciscus leuciscus Spawning occured during the second half of March and no ripe fish were found at either site in April ['April', 'March'] Mann, 1974
Leuciscus leuciscus Late winter or early spring ['April', 'March', 'January', 'May', 'June', 'February'] Fredrich, 2003
Leuciscus leuciscus A small number of eggs were found on 21 March 80, but the following week a large shoal of ripe dace collected in a pool above the spawning site and spawned on 28 March 80 ['March'] Mills, 1981
Leuciscus leuciscus Between late February and early April ['February', 'April'] Mann and Mills, 1985
Leuciscus leuciscus Mid to late March ['March'] Clough, 1998
Leuciscus leuciscus (February) March-May ['February', 'March', 'May'] Kamler and Wolnicki, 2006
Leuciscus leuciscus March-April ['April', 'March'] Kestemont and Mélard, 1994
Leuciscus leuciscus In the Trent, dace hatched between the third week of April (2003) and the first week of May (2002), whereas in the Ouse catchment hatching occurred 3 or 4 weeks later ['April', 'May'] Nunn, 2007
Mylopharyngodon piceus May to July ['May', 'July'] Fishbase, 2006
Phoxinus phoxinus April-June ['April', 'May', 'June'] Billard, 1997
Phoxinus phoxinus May-June ['May', 'June'] Spillmann, 1961
Phoxinus phoxinus May and mid-June [July-August in cold region] ['August', 'May', 'July', 'June'] Bruslé and Quignard, 2001
Phoxinus phoxinus From April to July, sometimes August [with a peak in May-June] ['April', 'May', 'August', 'June', 'July'] Kestemont, 2001
Phoxinus phoxinus June to July, but starts also in April ['April', 'June', 'July'] Fishbase, 2006
Phoxinus phoxinus From April to August ['April', 'August'] Mills, 1987
Phoxinus phoxinus From the second half of May or the beginning of June till the second half of July or the middle of August ['August', 'May', 'July', 'June'] Papadopol and Weinberger, 1975
Phoxinus phoxinus June in subalpine lake ['June'] Museth, 2002
Phoxinus phoxinus From May 11 to June, 15 ['May', 'June'] Wooton and Mills, 1979
Phoxinus phoxinus April-August ['April', 'May', 'August', 'June', 'July'] Mann, 1996
Phoxinus phoxinus Mainly June-July ['June', 'July'] Environment agency, 1996
Phoxinus phoxinus May-July, with a peak in June ['May', 'July', 'June'] Bagenal, 1971
Phoxinus phoxinus April-June (July) ['April', 'June', 'July'] Herzig and Winkler, 1986
Phoxinus phoxinus Spawn from May through July ['May', 'July'] Heese, 1984
Phoxinus phoxinus May to July ['May', 'July'] Soin, 1982
Phoxinus phoxinus The breeding season extends from May to July ['May', 'July'] Frost, 1943
Phoxinus phoxinus May-August ['August', 'May', 'July', 'June'] Kamler and Wolnicki, 2006
Phoxinus phoxinus From April to July (sometimes in August), but with a peak of spawning in May-June ['April', 'May', 'August', 'June', 'July'] Kestemont and Mélard, 1994
Phoxinus phoxinus In the Ouse catchment, the main hatching period for minnow was around early June, with fish from subsequent cohorts appearing in small numbers thereafter ['June'] Nunn, 2007
Pimephales promelas Between May 22 and August 22 ['August', 'May'] Gale and Buynak, 1982
Pimephales promelas May or June until August ['August', 'May', 'June'] Kerr and Grant, 1999
Pimephales promelas Late April-early September ['April', 'September'] Goodyear, 1982
Pimephales promelas In the spring of 1931 the first eggs appeared May 16th and in 1932 on May 5th ['April', 'May', 'June'] Markus, 1934
Pseudorasbora parva April-August ['April', 'May', 'August', 'June', 'July'] Coad, 2005
Pseudorasbora parva April-July ['April', 'May', 'July', 'June'] Bruslé and Quignard, 2001
Pseudorasbora parva May-June ['May', 'June'] Makeyeva and Mokamed, 1982
Pseudorasbora parva April to June ['April', 'June'] Rossechi, 2001
Pseudorasbora parva April to June ['April', 'June'] Fishbase, 2006
Pseudorasbora parva April-July ['April', 'May', 'July', 'June'] Rosecchi, 2001
Pseudorasbora parva In the Amur basin the spawning is in May-August, whereas it spawns earlier: in April-June ['April', 'August', 'May', 'June'] Witkowski, 2006
Pseudorasbora parva Apparently, the mass spawning of stone mroco in Kuchki pond happened in the second half of May or in June. The stone moroco spawns from late May to July in Ukraine, and from the end of June to the beginning of August in the basin of the Amur ['August', 'May', 'July', 'June'] Boltachev, 2006
Pseudorasbora parva In Japan, the spawning season lasts from April to August ['April', 'August'] Katano and Maekawa, 1997
Rhodeus sericeus April-August with a peak in May ['April', 'August', 'May'] Smith, 2004
Rhodeus sericeus April-June ['April', 'May', 'June'] Billard, 1997
Rhodeus sericeus April-June ['April', 'May', 'June'] Bruslé and Quignard, 2001
Rhodeus sericeus Early spring ['April', 'May', 'June'] Aldridge, 1999
Rhodeus sericeus April to August ['April', 'August'] Oliver and Carrel, 2001
Rhodeus sericeus April to June ['April', 'June'] Fishbase, 2006
Rhodeus sericeus April to mid-June ['April', 'June'] Terver, 1984
Rhodeus sericeus April to August for amrus ['April', 'August'] Bensettiti and Gaudillat, 2002
Rutilus rutilus April ['April'] Spillmann, 1961
Rutilus rutilus Last week of April, first week of May ['April', 'May'] Rinchard, 1996
Rutilus rutilus Start at May, 25 until May, 27 when the shoal dispersed, in the lake the roach spawned for at least 4 days, and one year later they spawned intermittently over a period of 19 days ['May'] Diamond, 1985
Rutilus rutilus April until June ['April', 'June'] Bruslé and Quignard, 2001
Rutilus rutilus Latter half of May ['May'] Mann, 1973
Rutilus rutilus April to June ['April', 'June'] Billard, 1997
Rutilus rutilus April to June ['April', 'June'] Le Houarn, 2001
Rutilus rutilus May ['May'] Vila-Gispert and Moreno-Amich, 2000
Rutilus rutilus April-May, sometimes June ['April', 'May', 'June'] Fishbase, 2006
Rutilus rutilus Started in Mid-May until Mid-June ['May', 'June'] Vollestad, 1987
Rutilus rutilus May ['May'] Kopiejewska, 2003
Rutilus rutilus First half of April ['April'] Papageorgiou, 1979
Rutilus rutilus May-June ['May', 'June'] Mann, 1996
Rutilus rutilus April to early July ['April', 'July'] Environment agency, 1996
Rutilus rutilus April to June ['April', 'June'] Terver, 1984
Rutilus rutilus The spawning occurs in early April to late May ['April', 'May'] Tarkan, 2006
Rutilus rutilus Perch spawned between 16 and 24 May (peak 17-19 May) near the shoreline on branches. Roach spawned at the same time as or a few days earlier than perch ['May'] Urho, 1996
Rutilus rutilus Late winter or early spring ['April', 'March', 'January', 'May', 'June', 'February'] Fredrich, 2003
Rutilus rutilus In mid-May [Other authors descibed it in: last from May 11 to 22 in the Klicava reservoir, in southern Poland spawning occurred from the 3rd decade of April till the 1st decade of June] ['April', 'May', 'June'] Libovarsky, 1985
Rutilus rutilus Spawn in May or June, depending on the water temperature in Lake Geneva ['May', 'June'] Gillet and Quétin, 2006
Rutilus rutilus May-June ['May', 'June'] Cattanéo, 2001
Rutilus rutilus The spawning of roach occured in Lake Konnevesibetween 1 and 4 June ['June'] Kort, 2004
Rutilus rutilus Roach stared to spawn on average aound 30 April (day no. 120) in rivers and around 5 May in lakes within the Narva River Basin. One half of all measurement fell into a range of 16 days between 26 April and 11 May […] In lake Peipsi roach starts to spawn at the end of April. Spawning ends during the second half of May ['April', 'May'] Noges and Järvet, 2005
Rutilus rutilus In the Trent, roach hatched between the end of April (2003) and the beginning of June (2002), but usually in the third and fourth weeks of May ['April', 'May', 'June'] Nunn, 2007
Rutilus rutilus One to coincide with the annual spawning (spring sampling: Aire, n = 44, 18 May 1998, Nene, n = 70, 22 May, 1998, refrence 3, n = 51, 19 May 1998) ['April', 'May', 'June'] Jobling, 2002b
Rutilus rutilus Spawning in spring ['April', 'May', 'June'] Kortet, 2004b
Rutilus rutilus In the Baltic Sea, roach spawn in early May after the ice breakup ['May'] Härmä, 2008
Scardinius erythrophthalmus April-May ['April', 'May'] Spillmann, 1961
Scardinius erythrophthalmus June ['June'] Shikhshabekov, 1979
Scardinius erythrophthalmus April-June ['April', 'May', 'June'] Billard, 1997
Scardinius erythrophthalmus April-May to July ['April', 'May', 'July'] Bruslé and Quignard, 2001
Scardinius erythrophthalmus May-June, but also from March to July ['March', 'May', 'July', 'June'] Fishbase, 2006
Scardinius erythrophthalmus First two weeks of May ['May'] Vila-Gispert and Moreno-Amich, 2000
Scardinius erythrophthalmus April-July ['April', 'May', 'July', 'June'] Mann, 1996
Scardinius erythrophthalmus May-July ['May', 'July', 'June'] Environment agency, 1996
Scardinius erythrophthalmus April-May/June (July) ['April', 'May', 'July', 'June'] Herzig and Winkler, 1986
Scardinius erythrophthalmus The spawning extends from early May to late June ['May', 'June'] Tarkan, 2006
Scardinius erythrophthalmus Depending on the place of occurrence, the species begin to spawn when the water temperature reaches 14°C in April, the spawning going on until June. In colder areas, the spawning takes place from June until mid-July ['April', 'June', 'July'] Korzelecka and Winnicki, 1998
Scardinius erythrophthalmus Spawn in pring and summer ['August', 'July', 'September'] Hicks, 2003
Scardinius erythrophthalmus May-June ['May', 'June'] Cattanéo, 2001
Tinca tinca May-June ['May', 'June'] Horvath, 1992
Tinca tinca May-July (sometimes in August) ['August', 'May', 'July'] Spillmann, 1961
Tinca tinca May-August ['August', 'May', 'July', 'June'] Billard, 1997
Tinca tinca End of May until July-August ['August', 'May', 'July'] Bruslé and Quignard, 2001
Tinca tinca From May to October ['October', 'May'] Feunteun, 2001
Tinca tinca June-July [Sometimes in May and August] ['August', 'May', 'July', 'June'] Fishbase, 2006
Tinca tinca Begins in late April and continues through early July ['April', 'July'] Yilmaz, 2002
Tinca tinca Begins in May untill end of July ['May', 'July'] Linhart and Billard, 1995
Tinca tinca May-August ['August', 'May', 'July', 'June'] Mann, 1996
Tinca tinca May-August ['August', 'May', 'July', 'June'] Environment agency, 1996
Tinca tinca May-July/August ['August', 'May', 'July'] Herzig and Winkler, 1986
Tinca tinca Spawning took place from the beginning of June to the end of July in almost all individuals ['June', 'July'] Alas and Solak, 2004
Tinca tinca End of June, Begiining of July ['June', 'July'] Penaz, 1989
Tinca tinca May-August. Other authors observed that tench spawned until Jul, other ended in mid-July, tench deased to spawn in the first days of august, also in mid-August ['August', 'May', 'July'] Pimpicka, 1989
Tinca tinca The last batch of eggs is spawned at the end of July/beginning of August. ['August', 'July'] Kubu and Kouril, 1985
Tinca tinca In central Europe, usually the first week in June to the first week in July ['June', 'July'] Linhart, 2003b
Vimba vimba First days of May ['May'] Shikhshabekov, 1979
Vimba vimba Spring No data Billard, 1997
Vimba vimba April to June-July ['April', 'June', 'July'] Bruslé and Quignard, 2001
Vimba vimba End of April until the end of May or into June ['April', 'May', 'June'] Coad, 2005
Vimba vimba From Beginning of May until the first ten days of June ['May', 'June'] Hliwa and Martyniak, 2002
Vimba vimba End of April, Beginning of May, until end of May or End of June ['April', 'May', 'June'] Hliwa, 2002
Vimba vimba April and June ['April', 'June'] Keith and Allardi, 2001
Vimba vimba April to June ['April', 'June'] Fishbase, 2006
Vimba vimba May-July ['May', 'July', 'June'] Mann, 1996
Vimba vimba V. vimba span in the Zeller Ache, one of the main tributaries of Mondsee, at the end of May and beginning of June ['May', 'June'] Herzig and Winkler, 1986
Vimba vimba May-July ['May', 'July', 'June'] Maitland, 1977
Vimba vimba Spawns in Malyy Kyzylagach bay at the end of April and continues until the end of May ['April', 'May'] Kuliev, 1988
Vimba vimba May-June ['May', 'June'] Kamler and Wolnicki, 2006
Vimba vimba The vimb breeding in Rega usually takes place in late May or in the beginning of June ['May', 'June'] Trzebiatowski and Narozanski, 1973
Vimba vimba Between May and July ['May', 'July'] Luszczek, 2008
Gambusia affinis April-September ['April', 'May', 'September', 'August', 'June', 'July'] Internet, 2005
Gambusia affinis Beginning of June until end of September ['June', 'September'] Crivelli and Quatre, 2001
Gambusia affinis In both years, no females with embryos were found before April. High percentages of adult females had embryos in June and july and (in 1983) in early august. By late september 1982 no females with embryos were found, and in 1983 only a very few gravid females were found in late September ['April', 'June', 'September'] Hughes, 1985
Esox masquinongy Begin 13 May, peaked on 23 May, until 12 June ['May', 'June'] Farrell, 1996
Esox masquinongy Spring spawner ususally in late April to late May [Spawns shortly after the ice has smelted] ['April', 'May'] Scott and Crossman, 1973
Esox masquinongy March to May ['March', 'May'] Fishbase, 2006
Esox masquinongy Spring spawner, spawns shortly after ice has melted in late April or early May ['April', 'May'] Kerr and Grant, 1999
Esox masquinongy Late March-June, but usually May and June ['March', 'May', 'June'] Goodyear, 1982
Esox masquinongy Spawn in the spring, after the northern pike ['April', 'May', 'June'] Pennslylvania fishes, 2006
Esox masquinongy Spring No data Wynne, 2006
Esox masquinongy Broodstock were captured on three seperate occassions (spanwing 15, 21, and 22 April 1998). ['April'] Rinchard, 2002
Esox masquinongy Spawning occurs early in the spring ['April', 'May', 'June'] Clemmons and Newman, 1997
Esox niger April-May [Fall spawning has been observed] ['April', 'May'] Coffie, 1998
Esox niger Spring spawner [But in certain areas, spawns in fall] No data Scott and Crossman, 1973
Esox niger March-April, [But from January to June] ['April', 'March', 'January', 'June'] Fishbase, 2006
Esox niger Spawn in early spring ['April', 'May', 'June'] Pennslylvania fishes, 2006
Esox niger April-May [Ice-out] ['April', 'May'] Anonymous, 2006
Esox niger During the period from April 10 to April 25 ['April'] Armbruster, 1959
Esox lucius February-April ['February', 'April', 'March'] Hovarth, 1992
Esox lucius May-June [Nothern latitudes], February-March [Southern latitudes] ['February', 'March', 'May', 'June'] Billard, 1996
Esox lucius Begin 25 April, peaked on 13-16 May, until 27 May ['April', 'May'] Farrell, 1996
Esox lucius February-End April [Nothern Europe] and May-June [Nothern region] ['February', 'April', 'May', 'June'] Bruslé and Quignard, 2001
Esox lucius Mid-February until Mid-April ['February', 'April'] Lenhardt, 1992
Esox lucius End of February in South, until April in North of France ['February', 'April'] Spillmann, 1961
Esox lucius February-April ['February', 'April', 'March'] Frost and Kipling, 1967
Esox lucius April ['April'] Bryan, 1967
Esox lucius February-March but May-June in certain regions ['February', 'March', 'May', 'June'] Souchon, 1983
Esox lucius February-April ['February', 'April', 'March'] Billard, 1997
Esox lucius February-March [South], until April [North and in mountains] ['February', 'April', 'March'] Le Louarn and Feunteun, 2001
Esox lucius February until April, up to May ['February', 'April', 'May'] Fishbase, 2006
Esox lucius April-early May, just after ice melts ['April', 'May'] Scott and Crossman, 1973
Esox lucius Greatest activity occured in the later half of April ['April'] Lucas, 1992
Esox lucius First half of March ['March'] Lenhardt and Cakic, 2002
Esox lucius March-April ['April', 'March'] Mann, 1996
Esox lucius March-May ['April', 'March', 'May'] Environment agency, 1996
Esox lucius 14 April -7 May, aproximate peak 21 April ['April', 'May'] Bagenal, 1971
Esox lucius Spring spawner, spawning commences shortly after ice-out but can sometimes occur before ice melts No data Kerr and Grant, 1999
Esox lucius In Labrador, spawning normally takes place from mid-April to mid-May, shortly after ice-out ['April', 'May'] Bradbury, 1999
Esox lucius Started in February and ended in March ['February', 'March'] Chimits, 1951
Esox lucius Occurred between 17 March when all females examined (N=12) were foudn to be gravid and 16 April when all (N=13) were spent ['April', 'March'] Treasurer, 1990
Esox lucius Mean peak spawning 25 April [Range: 27 March -3 June] in Lake Oahe, South and North Dakota ['April', 'March', 'June'] June, 1977
Esox lucius Burbot were caught with nets from Lake Pyhäselkä in eastern Finland before and during the spawning season in January and Fabruary 2001 ['January'] Mustonen, 2002
Esox lucius Usually late March-late April at 40-50°F ['April', 'March'] Goodyear, 1982
Esox lucius In Fennoscandia, pike spawns in April-May ['April', 'May'] Vehniäinen, 2007
Esox lucius In the northern areas, pike spawn after ice-break in the spring […] Mostly during May when water temperature reaches 10°C ['April', 'May', 'June'] Lappalainen, 2008
Lota lota December-January ['January', 'December'] Billard, 1997
Lota lota November to March [In February in Alpin lakes] ['February', 'November', 'March'] Bruslé and Quignard, 2001
Lota lota During winter [February in France] ['February', 'March', 'January'] Spillmann, 1961
Lota lota November to March ['November', 'March'] Van Houdt, 2003
Lota lota Spawns in mid-winter under the ice: from November to May, but mainly in January to March in Canada ['March', 'January', 'May', 'February', 'November'] Scott and Crossman, 1973
Lota lota Mainly in December to January [But from November to March] ['November', 'March', 'January', 'December'] Fishbase, 2006
Lota lota From late December to January ['January', 'December'] Vedeneev, 2003
Lota lota Spawn in February and March in Northern Finland ['February', 'March'] Pulliainen and Korhonen, 1993
Lota lota November-March ['February', 'November', 'March', 'January'] Mann, 1996
Lota lota End of November to Beginning of March ['November', 'March'] Terver, 1984
Lota lota Spawn under the ice, usually between January and March ['March', 'January'] Bradbury, 1999
Lota lota Spawn in midwinter under the ice, from November to May, but generally they spawn in Janaury through March ['March', 'January', 'May', 'February', 'November'] Anonymous, 2003
Lota lota Male burbot were observed in a near-ripe condition about January 20 in each year, and actual spawning probably commenced about January 31. Many fish were spent by February 10, but ripe unspawned fish of both sex occurred as late as February 20. ['February', 'January'] Hewson, 1955
Lota lota Maximum feeding of burbot was observed during the prespawning (September-December) and postspawning (March-June) feeding periods ['March', 'December', 'June', 'September'] Kirillov, 1989
Lota lota In 1987, spawning males were found from 13 March to 5 April and females from 2 March to 27 March, whereas in 1988 spawning occured earlier: from 26 February to 20 March in the males and from 11 February to 11 march in the females. ['February', 'April', 'March'] Pulliainen and Korhonen, 1990
Lota lota From December to Marhc ['December'] Kujawa, 2002
Lota lota Mean peak spawning 14 January [Range: 12 January-1 February] in Lake Oahe, South and North Dakota ['February', 'January'] June, 1977
Lota lota Winter spawner. In the lakes of North America, activity of burbot increased until the period of reproduction in February and March ['February', 'March'] Slavik and Bartos, 2002
Lota lota A 1-week period in november-May, at 33-50°F, varies considerably with locality, eggs have also been collected in September ['May', 'September'] Goodyear, 1982
Lota lota Burbot spawn in winter time at a temperature of 1-4°C ['February', 'March', 'January'] Harzevili, 2004
Lota lota Burbot spawn in the winter or early spring in most areas ['April', 'March', 'January', 'May', 'June', 'February'] Bonar, 2000
Gasterosteus aculeatus April-June ['April', 'May', 'June'] Billard, 1997
Gasterosteus aculeatus April to October ['April', 'October'] Coad, 2005
Gasterosteus aculeatus April-May but February-March in southern region ['February', 'April', 'March', 'May'] Bruslé and Quignard, 2001
Gasterosteus aculeatus May-July [But also February-August] ['February', 'August', 'May', 'July'] Internet, 2005
Gasterosteus aculeatus March until July ['March', 'July'] Crivelli, 2001
Gasterosteus aculeatus Mainly April-June [But in March and September] ['April', 'March', 'June', 'September'] Fishbase, 2006
Gasterosteus aculeatus Generally in June-July, but from April to September ['April', 'June', 'July', 'September'] Scott and Crossman, 1973
Gasterosteus aculeatus Thye first nest appear in mid-May and most nest building was finished by mid-June and was extremely rare after June 30 ['May', 'June'] Fitzgerald, 1983
Gasterosteus aculeatus March-June ['April', 'March', 'May', 'June'] Environment agency, 1996
Gasterosteus aculeatus April-May ['April', 'May'] Terver, 1984
Gasterosteus aculeatus Spawning shortly occur after migration, in June [Resident freshwater populations spawn mainly in mid-Summer, during June and July] ['June', 'July'] Bradbury, 1999
Gasterosteus aculeatus The breeding season is in late spring-summer ['April', 'May', 'September', 'August', 'June', 'July'] Borg and Van Veen, 1982
Gasterosteus aculeatus May-June ['May', 'June'] Borg, 1982
Gasterosteus aculeatus Bred from April to July, but the majority of them were sexually active from May onwards ['April', 'May', 'July'] Sokolowska and Sokolowska, 2006
Gasterosteus aculeatus This fish breeds mainly during April and May, but it is possible in tha laboratory to bring into breeding condition during most of the year ['April', 'May'] Swarup, 1958
Gasterosteus aculeatus April-September ['April', 'May', 'September', 'August', 'June', 'July'] Goodyear, 1982
Gasterosteus aculeatus They have spawned from April to mid June ['April', 'June'] Mori and Magoshi, 1987
Pungitius pungitius April-June ['April', 'May', 'June'] Billard, 1997
Pungitius pungitius April-May and in July in Nothern region ['April', 'May', 'July'] Bruslé and Quignard, 2001
Pungitius pungitius April-June ['April', 'May', 'June'] Lafaille and Feunteun, 2001
Pungitius pungitius May-June [Also in April until August] ['April', 'August', 'May', 'June'] Fishbase, 2006
Pungitius pungitius Summer No data Scott and Crossman, 1973
Pungitius pungitius May-June ['May', 'June'] Heins, 2003
Pungitius pungitius Last week of May and most nest building was finished by mid-June and was extremely rare after June 30 [Sexually mature individuals were found in the pools in early May] ['May', 'June'] Fitzgerald, 1983
Pungitius pungitius April-July ['April', 'May', 'July', 'June'] Environment agency, 1996
Pungitius pungitius April-May ['April', 'May'] Terver, 1984
Pungitius pungitius In most areas thoughout its range, spawning occurs in the summer in relatively shallow areas containing dense aquatic vegetation ['August', 'July', 'September'] Bradbury, 1999
Pungitius pungitius May-July ['May', 'July', 'June'] Goodyear, 1982
Pungitius pungitius The breeding season in the Bay begins at the end of April and ends in July ['April', 'July'] Sokolowska and Skora, 2002
Ambloplites rupestris May-June ['May', 'June'] Billard, 1997
Ambloplites rupestris May-June ['May', 'June'] Bruslé and Quignard, 2001
Ambloplites rupestris April to Mid-July ['April', 'July'] Carrel, 2001
Ambloplites rupestris Late spring and ealry summer, probably June in Canada ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Ambloplites rupestris April to July ['April', 'July'] Fishbase, 2006
Ambloplites rupestris May-June ['May', 'June'] Gross and Nowell, 1980
Ambloplites rupestris Late spring and early summer ['April', 'May', 'September', 'August', 'June', 'July'] Kerr and Grant, 1999
Ambloplites rupestris April-early August, usually late May-June ['April', 'August', 'May', 'June'] Goodyear, 1982
Ambloplites rupestris Nesting was asynchronous both years, occurring from mid-May to mid-July ['May', 'July'] Noltie and Keenleyside, 1987
Lepomis gibbosus May-June ['May', 'June'] Billard, 1997
Lepomis gibbosus May-June ['May', 'June'] Spillmann, 1961
Lepomis gibbosus May trough August in mid-Atlantic region ['August', 'May'] Internet, 2005
Lepomis gibbosus May-June [But in July-September in South of France] ['September', 'May', 'July', 'June'] Bruslé and Quignard, 2001
Lepomis gibbosus May to July ['May', 'July'] Danylchuk and Fox, 1994
Lepomis gibbosus May to August ['August', 'May'] Carrel, 2001
Lepomis gibbosus Usually begins in late spring to early summer, sometimes to the end of August ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Lepomis gibbosus May to July ['May', 'July'] Fishbase, 2006
Lepomis gibbosus June-July ['June', 'July'] Copp, 2002
Lepomis gibbosus From last week of May until the third week in August ['August', 'May'] Fox and Crivelli, 1998
Lepomis gibbosus From mid-May to Mid-August ['August', 'May'] Vila-Gispert and Moreno-Amich, 2000
Lepomis gibbosus Late spring, early summer ['April', 'May', 'September', 'August', 'June', 'July'] Kerr and Grant, 1999
Lepomis gibbosus Peak spawning occur in the second half of May ['May'] Rue, 2001
Lepomis gibbosus May-August ['August', 'May', 'July', 'June'] Goodyear, 1982
Lepomis gibbosus Eggs were collected from June 1-10, 1996, by placing clay tiles in nests of male pumpkinseed ['June'] Arendt and Wilson, 2000
Micropterus dolomieui May-July [Estimated also in April-May] ['April', 'May', 'July'] Internet, 2005
Micropterus dolomieui May-June ['May', 'June'] Billard, 1997
Micropterus dolomieui April-May [Also in March and June] ['April', 'March', 'May', 'June'] Fishbase, 2006
Micropterus dolomieui Late May to early July ['May', 'July'] Scott and Crossman, 1973
Micropterus dolomieui Late April to mid-June, spawning in the canal occurred approximatively 1 month earlier than in adjacent non-thermally influenced ragions ['April', 'June'] Cooke, 2003
Micropterus dolomieui Late May-early June ['May', 'June'] Martin, 1998
Micropterus dolomieui May-June ['May', 'June'] Rue, 2001
Micropterus dolomieui During spring and early summer ['April', 'May', 'September', 'August', 'June', 'July'] Kerr and Grant, 1999
Micropterus dolomieui Nest building began in late May, egg deposition peaked around the middle of June and continued until the end of June ['May', 'June'] McNeill, 1995
Micropterus dolomieui Nest building geban on June 3 in 1965 and June 5 in 1966 ['June'] Turner and MacCrimmon, 1970
Micropterus dolomieui North temperate populations of smallmouth bass reproduce shortly after winter ice-out, in late May ['February', 'March', 'January', 'May'] Gillooly and Baylis, 1999
Micropterus dolomieui A period of 6-10 days in March to mid-August, usually May-July ['August', 'March', 'May', 'July'] Goodyear, 1982
Micropterus dolomieui Males spawned between 12 April and 14 May ['April', 'May'] Knotek and Orth, 1998
Micropterus salmoides In southern Florida spawning starts in Mid-December to Mid-January, peaks in February, and stops in April ['February', 'April', 'January', 'December'] Heidinger, 1976
Micropterus salmoides Mid-April until end of May ['April', 'May'] Spillmann, 1961
Micropterus salmoides From spring trough early summer ['April', 'May', 'September', 'August', 'June', 'July'] Williamson, 1993
Micropterus salmoides Late April to July (in Minnesota) ['April', 'July'] Newburg, 1975
Micropterus salmoides Mid-March ['March'] Rosenblum, 1994
Micropterus salmoides Florida largemouth bass begin spawing earlier than nother largemouth bass and that considerable overlap in spawing periods may result in the production of intergrades ['May'] Isely and Noble, 1987
Micropterus salmoides April through June, peaking in early May ['April', 'May', 'June'] Internet, 2005
Micropterus salmoides April-May or June [In France] ['April', 'May', 'June'] Bruslé and Quignard, 2001
Micropterus salmoides March to July ['March', 'July'] Billard, 1997
Micropterus salmoides End of April to July ['April', 'July'] Carrel and Schlumberger, 2001
Micropterus salmoides March to June [France], May to August |North America] ['August', 'March', 'May', 'June'] Fishbase, 2006
Micropterus salmoides Late spring to mid-summer with the peak usually early to mid-June ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Micropterus salmoides Spawn from late May to early August ['August', 'May'] Kerr and Grant, 1999
Micropterus salmoides Spawning in heated and unheated areas of Par Pond occured predominantly during March and April ['April', 'March'] Bennett and Gibbons, 1975
Micropterus salmoides June, at this month spawning period of the pain pond females had begun ['June'] Martin, 1997
Micropterus salmoides Spawno the in lake Manyame occurs from late-winter to early-spring, just prior to the onset of the first rains in Zimbabwe ['April', 'March', 'January', 'May', 'June', 'February'] Beamish, 2005
Micropterus salmoides April-August, usually late may-early july ['April', 'August'] Goodyear, 1982
Micropterus salmoides In the years 2001-2002, on a total of 20 couples/year, 16 and 15 broodstocks laid eggs respectively, from the half to the end of April at the water temperature of 19 ± 2°C ['April'] Roncarati, 2005
Dicentrarchus labrax December ['December'] Prat, 1990,
Dicentrarchus labrax December to January with an optimum in January [Mediterranean Sea] and April-May [Britany] and June [Irlande] ['April', 'January', 'May', 'December', 'June'] Zohar, 1984
Dicentrarchus labrax December-April ['April', 'March', 'January', 'December', 'February'] Billard, 1997
Dicentrarchus labrax January till April, and March to June in nothern regions ['April', 'March', 'January', 'June'] Fishbase, 2006
Dicentrarchus labrax April-May [Nothern Bristol Channel] ['April', 'May'] Mayer, 1990
Dicentrarchus labrax Spawning occured from 09 February 2001 to 12 May 2001, in natural photoperiod and tempertaure conditions ['February', 'May'] Abdel, 2004
Dicentrarchus labrax According to the lattitudes, spawns in winter, December to March with an optimum in January in Mediterranean Sea, April-May in Brittany (France), and up to June (Irland) ['April', 'March', 'January', 'May', 'December', 'June', 'February'] Barnabé, 1980
Dicentrarchus labrax In the control fish, maintained under a simulated natural photoperiod cycle and natural temperature, spawning occured from February through March. ['February', 'March'] Mananos, 1997
Dicentrarchus labrax On the south-east coast of Spain, under natural conditions, spawning occurs during winter months ['February', 'March', 'January'] Rodriguez, 2001
Dicentrarchus labrax December to March in the Mediterranean Sea ['March', 'December'] Gonzalez and Piferrer, 2003
Dicentrarchus labrax Reproduction in sea bass takes place in winter, when water temperature is between 11 to 15°C ['February', 'March', 'January'] Georgakopoulou, 2007
Morone americana Commences about mid-May and may extend to the end of June ['May', 'June'] Scott and Crossman, 1973
Morone americana Middle of May to the end of June ['May', 'June'] Sheri and Power, 1968
Morone americana From April to June, or July, with peak egg deposition in mid-May to early June ['April', 'May', 'July', 'June'] Everly and Boreman, 1999
Morone americana Mid-march and May ['May'] Rue, 2001
Morone americana Peaks in April and May ['April', 'May'] North and Houde, 2001
Morone chrysops April-June ['April', 'May', 'June'] Internet, 2005
Morone chrysops Spring: usually in May, extending in June in cool years ['May', 'June'] Scott and Crossman, 1973
Morone chrysops Could have extended from March to April ['April', 'March'] Berlinsky, 1995
Morone chrysops Spawning activity extended from about 17 May to 10 June ['May', 'June'] Ruelle, 1977
Morone chrysops Spawning takes place in May, and may extend into June ['May', 'June'] Anonymous, 2006 Chapter 3
Morone chrysops Mean peak spawning 3 June [Range: 11 May-27 June] in Lake Oahe, South and North Dakota ['May', 'June'] June, 1977
Morone chrysops In April-early-June, usually late May-early June ['April', 'May', 'June'] Goodyear, 1982
Morone saxatilis April-June, can extend to mid-summer ['April', 'September', 'August', 'June', 'July'] Internet, 2005
Morone saxatilis Mainly May, but April-June ['April', 'May', 'June'] Fishbase, 2006
Morone saxatilis Usually in June ['June'] Scott and Crossman, 1973
Morone saxatilis About mid-April to mid-June, peaking in mid-May ['April', 'May', 'June'] Carmichael, 1998
Morone saxatilis Occurs primarily in April and May ['April', 'May'] Sullivan, 1997
Morone saxatilis Early May to June ['May', 'June'] Everly and Boreman, 1999
Morone saxatilis Genreally from April to June ['April', 'June'] Rue, 2001
Morone saxatilis Peaks in April and May ['April', 'May'] North and Houde, 2001
Morone saxatilis Spawn in Chesapeake Bay tributaries from April to Hune ['April'] Rutherford and Houde, 1994
Morone saxatilis April through June, the excat time depending on the latirude and temperature ['April', 'June'] Merriman, 1937
Morone saxatilis Most fish observed left the spanwing area between 16 April and 1 May ['April', 'May'] Dudley, 1977
Morone saxatilis April ['April'] Vuthiphandchai, 2002
Morone saxatilis Normally spawn at Chesapeake latitude (April-May) ['April', 'May'] Clark, 2005
Morone saxatilis Striped bass spawn in spring in numerous estuaries on the east coast of North America ['April', 'May', 'June'] Macintosh and Duston, 2007
Gymnocephalus cernuus March to May ['March', 'May'] Spillmann, 1961
Gymnocephalus cernuus May-July ['May', 'July', 'June'] Brown, 1998
Gymnocephalus cernuus April-May but June in Nothern Region ['April', 'May', 'June'] Bruslé and Quignard, 2001
Gymnocephalus cernuus Usually during April-July ['April', 'July'] Crosier, 2005
Gymnocephalus cernuus Mid-April to July ['April', 'July'] Ogle, 1998
Gymnocephalus cernuus April-June ['April', 'May', 'June'] Craig, 2000
Gymnocephalus cernuus Mid-April to Mid-June ['April', 'June'] Kovac, 1998
Gymnocephalus cernuus Late April to Mid-June ['April', 'June'] Leino and McCormick, 1997
Gymnocephalus cernuus March to May ['March', 'May'] Billard, 1997
Gymnocephalus cernuus March to August ['August', 'March'] Crivelli and Rosecchi, 2001
Gymnocephalus cernuus April-May but also March to up to August ['April', 'August', 'March', 'May'] Fishbase, 2006
Gymnocephalus cernuus March-July ['April', 'March', 'May', 'June', 'July'] Mann, 1996
Gymnocephalus cernuus March-May ['April', 'March', 'May'] Environment agency, 1996
Gymnocephalus cernuus March to early May ['March', 'May'] Terver, 1984
Gymnocephalus cernuus April-May ['April', 'May'] Maitland, 1977
Gymnocephalus cernuus In Polish waters typically from mid-April through end of May ['April', 'May'] Neja, 1988
Perca flavescens Depending on latitudes, the spawning period extends from March to late June ['March', 'June'] Craig, 2000
Perca flavescens March-April ['April', 'March'] Mansueti, 1964
Perca flavescens Spring No data Heidinger and Kayes, 1986
Perca flavescens April and early May ['April', 'May'] Kayes and Calbert, 1979
Perca flavescens Mid-April to Beginning of May ['April', 'May'] Malservisi and Magnin, 1968
Perca flavescens In the spring, usually from April 15 to early May, but spawning may extend into July in some areas ['April', 'May', 'July', 'June'] Scott and Crossman, 1973
Perca flavescens Spawning period extends from March to late June ['March', 'June'] Kestemont and Mélard, 2000
Perca flavescens Spaws in spring during a period when water temperatures begin to rise (mid-April to early May) ['April', 'May', 'June'] Kerr and Grant, 1999
Perca flavescens Spring No data Anonymous, 2006 Chapter 3
Perca flavescens Early spring ['April', 'May', 'June'] Whiteside, 1983
Perca flavescens The spawning period occured from the middle of May through the end of June ['May', 'June'] Brazo, 1975
Perca flavescens Mean peak spawning 1 May [Range: 14 April-20 May] in Lake Oahe, South and North Dakota ['April', 'May'] June, 1977
Perca flavescens Spawn in April-June and complete most of a year's growthby August ['April', 'August', 'June'] Purchase, 2005
Perca flavescens Yellow perch typically spawn in South Dakota lakes and wetlands from mid-April to mid-May […] On Lake Madison during 2000 and 2001, egg deposition on submerged conifer bundles occurred over 3-15 days periods from 21 April to 5 May at water temperatures between 7 and 17°C, and no new egg deposition was observed after the first week of May ['April', 'May'] Isermann and Willis, 2008
Perca fluviatilis March until May ['March', 'May'] Spillmann, 1961
Perca fluviatilis February and July in Nothern Hemisphere ['February', 'July'] Thorpe, 1977
Perca fluviatilis March-April-May but end of June in Nothern Region ['April', 'March', 'May', 'June'] Bruslé and Quignard, 2001
Perca fluviatilis March to June ['March', 'June'] Dalimier and Voss, 1982
Perca fluviatilis End April to Mid-June ['April', 'June'] Dalimier, 1982
Perca fluviatilis 20 April [Scotland] ['April'] Treasurer, 1983
Perca fluviatilis Beginning of April until June ['April', 'June'] Sandström, 1997
Perca fluviatilis April-May until beginning of June in the Leman Lake ['April', 'May', 'June'] Gillet and Dubois, 2003
Perca fluviatilis Spawning period extends from March to late June ['March', 'June'] Kestemont and Mélard, 2000
Perca fluviatilis March-June ['April', 'March', 'May', 'June'] Billard, 1997
Perca fluviatilis Mid-April to Mid-June ['April', 'June'] Dubois, 2001
Perca fluviatilis Mainly March to May ['March', 'May'] Fishbase, 2006
Perca fluviatilis March-April ['April', 'March'] Mann, 1996
Perca fluviatilis April-May ['April', 'May'] Environment agency, 1996
Perca fluviatilis May-June, peak in 20 May ['May', 'June'] Bagenal, 1971
Perca fluviatilis Mid-March to April ['April', 'March'] Terver, 1984
Perca fluviatilis The spawning period of perch was May in lake Geneva ['May'] Gillet, 1995
Perca fluviatilis Spawnings in natural conditions in early spring, commecing from March in south regions and from June in the north ['April', 'March', 'May', 'June'] Korzelecka, 1998
Perca fluviatilis Perch spawned between 16 and 24 May (peak 17-19 May) near the shoreline on branches ['May'] Urho, 1996
Perca fluviatilis Perch in both lakes spawned in the middle of May, following a rapid 2-week increase in water temeprature from 4-6°C to 10-13°C ['May'] Noaksson, 2004
Perca fluviatilis In the Trent and Avon, perch hatched at approximately the same time as roach, between the end of April (2003) and the middle of May (all other years) ['April', 'May'] Nunn, 2007
Perca fluviatilis During the spawning time in May ['May'] Mansour, 2008
Sander lucioperca March-April ['April', 'March'] Hovarth, 1992
Sander lucioperca April-June ['April', 'May', 'June'] Billard, 1997
Sander lucioperca February until July, usually in April and May ['February', 'April', 'May', 'July'] Craig, 2000
Sander lucioperca April-June ['April', 'May', 'June'] Spillmann, 1961
Sander lucioperca April to June ['April', 'June'] Bruslé and Quignard, 2001
Sander lucioperca April ['April'] Schlumberger and Proteau, 1991
Sander lucioperca From April to mid-summer ['April', 'August', 'July', 'September'] Kestemont and Mélard, 2000
Sander lucioperca April-May [March to August] ['April', 'August', 'March', 'May'] Fishbase, 2006
Sander lucioperca Generally in April-May, with its extremes late in February and early in July ['February', 'April', 'May', 'July'] Deeler and Willemsen, 1964
Sander lucioperca April-May ['April', 'May'] Mann, 1996
Sander lucioperca March-April ['April', 'March'] Poulet, 2004
Sander lucioperca April-May ['April', 'May'] Demska-Zakes and Zakes, 2002
Sander lucioperca April-June ['April', 'May', 'June'] Environment agency, 1996
Sander lucioperca Mid-March to April ['April', 'March'] Terver, 1984
Sander lucioperca April ['April'] Laurent, 1973
Sander lucioperca Generally takes place in late April-early May in the Southern Baltic Sea and in late May-June in the Nothern Baltic Proper and the Gulf of Finland ['April', 'May', 'June'] Lehtonen, 1996
Sander lucioperca Pike perch in the Batak Dam usually spawn from the end of March until the end of April, at water temperatures between 4°C and 6°C. Spawning begins earlier in the cooling reservoir (end of February to the end of March) at water temperatures between 6°c and 12°C ['February', 'April', 'March'] Raikova-Petrova and Zivkov, 1998
Sander lucioperca March is the peak spawning period ['March'] Poulet, 2005
Sander lucioperca Spring No data Schlumberger and Proteau, 1996
Sander lucioperca End of April - Beginning of June ['April', 'June'] Dubois, 1996
Sander lucioperca Spawning season starts in April-May ['April', 'May'] Wang, 2009
Sander vitreus Early spring, as early as February in southern areas and can extend into July ['April', 'May', 'June', 'July', 'February'] Malison, 1998
Sander vitreus Early spring, as early as February in southern areas and can extend into July ['April', 'May', 'June', 'July', 'February'] Malison and Held, 1996b
Sander vitreus As early as January-February, and as late as June ['February', 'January', 'June'] Colby, 1979
Sander vitreus April ['April'] Corbett and Powles, 1986
Sander vitreus Walleye are one of the first species to spawn in the spring, shortly after ice break-up. Early to mid-April ['April', 'May', 'June'] Malison, 1994
Sander vitreus Early spring in southern areas to July un nothern extremes ['April', 'May', 'July', 'June'] Kestemont and Mélard, 2000
Sander vitreus In the spring or early summer [Early April, to end of June in North] ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Sander vitreus April-June ['April', 'May', 'June'] Fishbase, 2006
Sander vitreus Spring spawner No data Kerr and Grant, 1999
Sander vitreus Spring and early summer ['August', 'July', 'September'] Anonymous, 2006 Chapter 3
Sander vitreus Mean peak spawning 4 May [Range: 12 April-29 May] in Lake Oahe, South and North Dakota ['April', 'May'] June, 1977
Sander vitreus Ripe ova were collected from individual females on 5 May and 6 May ['May'] Johnston, 2007
Sander vitreus Sampling was conducted during the spring spawning period from 2002 to 2004, dates of sampling varied from early April in the south to late May in the north ['April', 'May', 'June'] Moles, 2008
Sander vitreus Walleye were sampled from a lake-spawning stock from eastern Lake Ontario in the Bay of Quinte (44°OO' N, 76°40' W) on 22 April 2004 and from a riverine-spawning stock from eastern Lake Erie in the Grand River (42°52' N, 79°30' W) on 22 and 23 April 2004 ['April'] Johnston, 2008
Coregonus lavaretus October-December ['October', 'November', 'December'] Billard, 1997
Coregonus lavaretus October to December ['October', 'December'] Bruslé and Quignard, 2001
Coregonus lavaretus Late October to late November ['October', 'November'] Skurdal, 1985
Coregonus lavaretus December to January ['January', 'December'] Gerdeaux, 2001
Coregonus lavaretus Some in autum, and some in winter December to March ['February', 'March', 'January', 'December'] Zuromska, 1982
Coregonus lavaretus November to December ['November', 'December'] Fishbase, 2006
Coregonus lavaretus Spawning takes place in summer, autumn or winter ['March', 'January', 'September', 'August', 'December', 'July', 'February', 'October', 'November'] Coad, 2006
Coregonus lavaretus From 15 th January to 15 February ['February', 'January'] Bagenal, 1970
Coregonus lavaretus October to January ['October', 'January'] Maitland, 1977
Coregonus lavaretus Spawning takes place during the first 3 weeks of January in Loch Lomond, Scotland ['January'] Fuller, 1976
Coregonus lavaretus Late November-early December ['November', 'December'] Heese, 1990
Coregonus albula October to December ['October', 'December'] Bruslé and Quignard, 2001
Coregonus albula November-December ['November', 'December'] Demska-Zakes and Dlugosz, 1995
Coregonus albula November-December [But described in February-March in some lakes in Finland] ['February', 'November', 'March', 'December'] Fishbase, 2006
Coregonus albula Usually in autumn, at the end of October, but sometimes during the winter [December to April] ['April', 'March', 'January', 'December', 'February', 'October', 'November'] Kuopio, 1991
Coregonus albula Autumn No data Dlugosz and Worniallo, 1985
Coregonus albula October to December ['October', 'December'] Maitland, 1977
Coregonus albula Most whitefish spawn in fall No data Willson, 1997
Coregonus albula Late November to early December ['November', 'December'] Wilkonska, 1993
Coregonus albula December for nominate form and April/May for the deepwater form in Lake Stechlin ['April', 'December', 'May'] Anwand, 1998
Coregonus albula In 9 Finnish and Polish Lakes range between October/November/December except one population in lake Kajoonjârvi which is in Febr./March ['October', 'November', 'March', 'December'] Kamler, 1982
Coregonus albula Vendace spawn in Pyhäjärvi in early November ['November'] Sarvala, 1992
Coregonus clupeaformis Last 2 weeks of November ['November'] Harris and Huslman, 2001
Coregonus clupeaformis November [Mainly] and December ['November', 'December'] Rinchard, 2001
Coregonus clupeaformis November and December, but also from late September to October ['October', 'November', 'December', 'September'] Scott and Crossman, 1973
Coregonus clupeaformis November to December ['November', 'December'] Fishbase, 2006
Coregonus clupeaformis For the most part, spawning occurs in late October and early November [There have been instances where spawning has occured into mid-December] ['October', 'November', 'December'] Kerr and Grant, 1999
Coregonus clupeaformis October-January, peak spawning usually occurs in late November-earlt December ['October', 'November', 'January', 'December'] Goodyear, 1982
Coregonus clupeaformis Spawn in the autumn, usually in November and December ['October', 'November', 'December'] Anonymous, 2006 Chapter 3
Coregonus clupeaformis In Labrador, spawning usually takes place in lakes in mid-September or October ['October', 'September'] Bradbury, 1999
Coregonus clupeaformis Some species of Coregonus in summer or winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Coregonus clupeaformis From Ocotber to January, but usually from the end of October to the end of December ['October', 'January', 'December'] Mack and Billard, 1984
Hucho hucho March-April ['April', 'March'] Billard, 1997
Hucho hucho Spring: Mid-March until Mid-April, up to May ['April', 'March', 'May'] Bruslé and Quignard, 2001
Hucho hucho April ['April'] Perrin, 2001
Hucho hucho March-April ['April', 'March'] Jatteau, 1991
Hucho hucho April-May ['April', 'May'] Fishbase, 2006
Hucho hucho On the south of Europe spawning starts as soon as February and lasts until March and in Central Europe it extends from April to mid-May ['February', 'April', 'March', 'May'] Witkowski, 1988
Hucho hucho Spring spawner [Other authors described between March and May] ['March', 'May'] Humpesch, 1985
Hucho hucho The spawning begins in April (the earliest spawning was noted on April 6, at water temperature of 3.6°C) and lasts to mid July (the last spawning was observed on May 13, at water temperature of 9.2°C). The most intense spawning usually occurs by the end of April at water temperature of about 7°C ['April', 'May', 'July'] Witokowski and Kokurewicz, 1981
Hucho hucho Spring spawner, it spawns in March and April ['April', 'March'] Prawochensky and Kolder, 1968
Hucho hucho Depending on the local water temperature spawning takes place between the middle of March and end of April ['April', 'March'] Jungwirth, 1978
Hucho hucho The ripening of the sexual products of Danubian salmon takes place in the spring months, especially in the second half of April and first half of May ['April', 'May', 'June'] Penaz and Prihoda, 1981
Oncorhynchus gorbuscha Late August to early October ['October', 'August'] Groot, 1996
Oncorhynchus gorbuscha Salmon spawning does not extend past October ['October'] Beacham and Murray, 1986
Oncorhynchus gorbuscha In British Columbia, pink salmon spawn during August through October ['October', 'August'] Beacham, 1988
Oncorhynchus gorbuscha Mainly in August, with a peak in early-mid August [in the rivers of nothern shore of the sea of Okhotsk] ['August'] Golobanov, 1982
Oncorhynchus gorbuscha Early August until the ten first days of September ['August', 'September'] Zolotukhin, 1993
Oncorhynchus gorbuscha From mid-July to late October ['October', 'July'] Scott and Crossman, 1973
Oncorhynchus gorbuscha September-November [June-November] ['November', 'June', 'September'] Fishbase, 2006
Oncorhynchus gorbuscha September-early October, usually peaks in mid-September ['October', 'September'] Goodyear, 1982
Oncorhynchus gorbuscha Occurs in late August through October ['October', 'August'] Bradbury, 1999
Oncorhynchus gorbuscha Among the species of Oncorhynchus, the salmon are typically late-summer spawners (the exact timing differing among locations and years), although southern chinook populations breed in psring, and some coho populations breed in late winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Oncorhynchus gorbuscha Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus gorbuscha october-Novevember ['October'] Keenleyside and Dupuis, 1988
Oncorhynchus keta July [Nothern and central areas], September to January [Southern areas] ['January', 'July', 'September'] Groot, 1996
Oncorhynchus keta There are two main seasonal fomrs of chum salmo, with the chief differences between then being reprodcutive-the summer form spawns in sites with subsurface river flow with seasonal (and dialy) temperature variation and the atum form selects spawning sites influneced by groundwater under relatively constant temperatures ['August', 'July', 'September'] Leman, 1993
Oncorhynchus keta October, but from September to November ['October', 'November', 'September'] Fishbase, 2006
Oncorhynchus keta Early O. keta spawn in July-August, and late in October-December ['October', 'August', 'December', 'July'] Volobuev and Volobuev, 2000
Oncorhynchus keta Most spawn before the end of August or the beginning of September. Nothern populations have peak periods of spawning in August or early September, southern populations in October to November ['October', 'August', 'November', 'September'] Bakkala, 1970
Oncorhynchus keta Among the species of Oncorhynchus, the salmon are typically late-summer spawners (the exact timing differing among locations and years), although southern chinook populations breed in psring, and some coho populations breed in late winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Oncorhynchus keta Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus keta In British Columbia, chum salmon spawn in over 880 streams from late July through January ['January', 'July'] Murray and Beacham, 1987
Oncorhynchus keta As early as July in northern and central areas of British Columbia and as late as January in the southern region ['January', 'July'] Beacham and Murray, 1987
Oncorhynchus kisutch Can last from October to March, but most populations spawn between November and January [Spawn over a longer period than other Pacific slamon] ['October', 'November', 'March', 'January'] Groot, 1996
Oncorhynchus kisutch December 9-21 in captivity [normal conditions: October to January] ['October', 'January', 'December'] MacQuarrie, 1978
Oncorhynchus kisutch October to March, but usually October to November, ot November to January ['October', 'November', 'March', 'January'] Scott and Crossman, 1973
Oncorhynchus kisutch Spawning in British Columbia typically peaks in November and December when autumn rains have raised water levels, but spawning may continue at low levels into January or as late as March ['March', 'January', 'December', 'October', 'November'] Murray, 1990
Oncorhynchus kisutch Lake Erie spawn from early November to mid-December ['November', 'December'] Kerr and Grant, 1999
Oncorhynchus kisutch Mid-September to January, spawning usually peaks in October-November, low temperature in early winter can delay spawning until speing ['March', 'January', 'September', 'February', 'October', 'November'] Goodyear, 1982
Oncorhynchus kisutch Among the species of Oncorhynchus, the salmon are typically late-summer spawners (the exact timing differing among locations and years), although southern chinook populations breed in psring, and some coho populations breed in late winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Oncorhynchus kisutch Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus kisutch Spawning usually begins early in October and ends in mid-November ['October', 'November'] Crone and Bond, 1976
Oncorhynchus mykiss December through April, January trough March, Spring ['April', 'March', 'January', 'December'] Internet, 2005
Oncorhynchus mykiss January to July [Mainly from mid-April to June] ['April', 'January', 'June', 'July'] Groot, 1996
Oncorhynchus mykiss Begin in December ['December'] Duston and Bromage, 1986
Oncorhynchus mykiss February to June [Really rare in Europe] ['February', 'June'] Bruslé and Quignard, 2001
Oncorhynchus mykiss October to May ['October', 'May'] Billard, 1997
Oncorhynchus mykiss October to May ['October', 'May'] Fishbase, 2006
Oncorhynchus mykiss Basically spring spawner: from March to August, mainly from mid-April to late-June ['April', 'March', 'May', 'August', 'June'] Scott and Crossman, 1973
Oncorhynchus mykiss Spawning takes place from March to August but is usually in spring [North America Great Lakes fish spawn from late December to late April] ['April', 'March', 'May', 'August', 'December', 'June'] Coad, 2006
Oncorhynchus mykiss Rainbow trout are basically spring spawners, although some autumn and winter spawning has been observed ['April', 'March', 'January', 'May', 'December', 'June', 'February', 'October', 'November'] Kerr and Grant, 1999
Oncorhynchus mykiss Mid-November to January ['November', 'January'] Terver, 1984
Oncorhynchus mykiss Unlike other salmonids in Newfoundland, rainbow trout spawn in the spring, usually from mid-April to mid-May, although lake-resident trout may spawn as early as late March in cetains areas of Newfoundland ['April', 'March', 'May', 'June'] Bradbury, 1999
Oncorhynchus mykiss Rainbows (including steelhead) and cutthroats characteristically breed in late winter, spring and summer ['April', 'March', 'January', 'May', 'September', 'August', 'June', 'July', 'February'] Willson, 1997
Oncorhynchus mykiss Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus mykiss The controls under the simulated natural seasonal cycle spawned in January/February at the same time as fish of the same strain in outside tanks under ambiant day-length ['February', 'January'] Bromage, 1984
Oncorhynchus mykiss Spring spawner [Other authors described between October and March] ['October', 'March'] Humpesch, 1985
Oncorhynchus nerka Late summer [Nothern and central areas] and Autumn [More southern areas] ['August', 'July', 'September'] Groot, 1996
Oncorhynchus nerka Generally September and October, and in November and December ['October', 'November', 'December', 'September'] Scott and Crossman, 1973
Oncorhynchus nerka September-October, or November-December ['October', 'November', 'December', 'September'] Fishbase, 2006
Oncorhynchus nerka Between Mid-October for the first spawners to Mid-December for the last spawners ['October', 'December'] Hendry, 1998
Oncorhynchus nerka Spawn in Puget Sound from late September to late December and occasionally into January, and in the Columbia River from late September to early November ['November', 'January', 'December', 'September'] Gustafson, 1997
Oncorhynchus nerka Spawning occurs from the end of July to February but in some years continue through February, but in lake Dal'neye occur from the end of July to the beginning of October ['February', 'October', 'July'] Yegorova, 1978
Oncorhynchus nerka September-October, peaks in late September or early October ['October', 'September'] Goodyear, 1982
Oncorhynchus nerka Among the species of Oncorhynchus, the salmon are typically late-summer spawners (the exact timing differing among locations and years), although southern chinook populations breed in psring, and some coho populations breed in late winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Oncorhynchus nerka Throughout the period of island beach spawning, 13-29 August 1997 ['August'] Hamon, 1999
Oncorhynchus nerka Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus nerka The great majority spawn in tributaries of lakes Wenatchee and Osoyoos in September and October ['October', 'September'] Quinn, 1997
Oncorhynchus tshawytscha All year around because many races are involved No data Internet, 2005
Oncorhynchus tshawytscha May to July and September to October : all year round ['October', 'May', 'July', 'September'] Groot, 1996
Oncorhynchus tshawytscha Spawning normally occur in September ['September'] Slater, 1994
Oncorhynchus tshawytscha From late September to early October ['October', 'September'] Scott and Crossman, 1973
Oncorhynchus tshawytscha September to November, also March to May ['November', 'March', 'May', 'September'] Fishbase, 2006
Oncorhynchus tshawytscha Either spawn in the spring or fall depending on the latitude, in Great lakes generally spawn in the fall ['April', 'May', 'June'] Kerr and Grant, 1999
Oncorhynchus tshawytscha Late August-mid November, peaks in October ['October', 'August', 'November'] Goodyear, 1982
Oncorhynchus tshawytscha Among the species of Oncorhynchus, the salmon are typically late-summer spawners (the exact timing differing among locations and years), although southern chinook populations breed in psring, and some coho populations breed in late winter ['March', 'January', 'September', 'August', 'July', 'February'] Willson, 1997
Oncorhynchus tshawytscha Pacific salmon spawn in fall (though this may be as early as July or as late as February, depending on species and region) whereas the Pacific trout species (formely in the genus Salmo) spawn in spring. ['April', 'May', 'June', 'July', 'February'] Quinn and Myers, 2004
Oncorhynchus tshawytscha In British Columbia, chinook salmon spawnin in over 260 streams from early August through October ['October', 'August'] Murray and Beacham, 1987
Oncorhynchus tshawytscha August-October ['October', 'August', 'September'] Berman and Quinn, 1991
Salmo salar October to November [Sometimes in September or until January] ['October', 'November', 'January', 'September'] Groot, 1996
Salmo salar From September to November in Sweden and End of November to January in France ['November', 'January', 'September'] Bruslé and Quignard, 2001
Salmo salar December ['December'] Dumas and Darolles, 1999
Salmo salar Begin from 10 and 12 December ['December'] Baglinière, 1990
Salmo salar Fall No data Billard, 1997
Salmo salar November to January ['November', 'January'] Porcher and Baglinière, 2001
Salmo salar September to November, but also December, January ['November', 'January', 'December', 'September'] Fishbase, 2006
Salmo salar Mainly October-November ['October', 'November'] Scott and Crossman, 1973
Salmo salar Late October through November ['October', 'November'] Kerr and Grant, 1999
Salmo salar Salmo and most char are fall breeders No data Willson, 1997
Salmo salar In Newfoundland, sea-run Atlantic salmon normally spawn between mid-October and mid-November and may occur two weeks earlier in Labrador [For freshwater resident, In newfoundland, spawning typically occurs late September and early November, whereas in Labrador spawning normally occurs between mid-September and October. ['October', 'November', 'September'] Bradbury, 1999
Salmo salar November to February, earlier in higher latitudes ['February', 'November'] Bensettiti and Gaudillat, 2002
Salmo salar Spawn in autumn and winter ['March', 'January', 'December', 'February', 'October', 'November'] Okland, 2001
Salmo salar A period of 5-14 days in late October-late December, peak spawning usually occurs in November at about 44°F ['October', 'November', 'December'] Goodyear, 1982
Salmo trutta fario October-January ['October', 'November', 'January'] Billard, 1997
Salmo trutta fario October-November until January-February ['February', 'October', 'November', 'January'] Bruslé and Quignard, 2001
Salmo trutta fario Late autumn to early winter ['March', 'January', 'December', 'February', 'October', 'November'] Groot, 1996
Salmo trutta fario November to end of february ['November'] Ombredane, 2001
Salmo trutta fario October to January, and up to March ['October', 'March', 'January'] Fishbase, 2006
Salmo trutta fario Start about October 15 and continue through early November, may extend into January ['October', 'November', 'January'] Scott and Crossman, 1973
Salmo trutta fario Spawn in autumn of the year ['October', 'November', 'December'] Kerr and Grant, 1999
Salmo trutta fario From mid-November to end of January ['November', 'January'] Terver, 1984
Salmo trutta fario Salmo and most char are fall breeders No data Willson, 1997
Salmo trutta fario Brown trout were observed spawning at the study sites from mid October to early January ['October', 'January'] Acornley, 1999
Salmo trutta fario Winter spawner [Other authors described between September and January] ['January', 'September'] Humpesch, 1985
Salmo trutta fario December ['December'] Plasseraud, 1990
Salmo trutta fario Spawned in late October to early November ['October', 'November'] Crisp, 1994
Salmo trutta fario Peak spawning in mid-October ['October'] Jonsson and Jonsson, 2006
Salmo trutta fario The spawning season was from 3 November 1992 to 9 January 1993 ['November', 'January'] Rubin,2004
Salmo trutta fario September-January, usually October-November ['October', 'November', 'January', 'September'] Goodyear, 1982
Salmo trutta fario Reproduction of the farmed fish annually occurred in November, which was the usual period under conditions corresponding to this latitude ['November'] Randak, 2006
Salvelinus alpinus Autum or during winter ['February', 'March', 'January'] Guillard, 1992
Salvelinus alpinus January ['January'] Berg, 2004
Salvelinus alpinus October and the first half of December ['October', 'December'] Jamet, 1995
Salvelinus alpinus In autumn in either lakes or rivers. Non-migratory fish may spawn in lakes in autum and spring, but only in autum in rivers, September-October [Nothern regions], November-december [Southern regions] ['April', 'May', 'September', 'December', 'June', 'October', 'November'] Groot, 1996
Salvelinus alpinus Ripening females were first observed on 24 September and by 15 October all the sampled females had ovulated ['October', 'September'] Frantzen, 1997
Salvelinus alpinus End of November to January ['November', 'January'] Bruslé and Quignard, 2001
Salvelinus alpinus November to January ['November', 'January'] Billard, 1997
Salvelinus alpinus November to January ['November', 'January'] Gerdeaux, 2001
Salvelinus alpinus October, November but also in September until January, even March ['March', 'January', 'September', 'October', 'November'] Fishbase, 2006
Salvelinus alpinus From 20 September to mid-October, maximum spawning were observed at the end of September ['October', 'September'] Pavlov, 1994
Salvelinus alpinus Usually in September or October, and as late as November or December ['October', 'November', 'December', 'September'] Scott and Crossman, 1973
Salvelinus alpinus The anadromous form spawns in atumun in either lakes or rivers, non migratory pawn in lakes in the autum or spring but river spawners only spawn in the autumn ['April', 'May', 'December', 'June', 'October', 'November'] Kerr and Grant, 1999
Salvelinus alpinus Mid November to mid-January ['November', 'January'] Terver, 1984
Salvelinus alpinus Lake Saimaa Arctic charr spawn during October-November, at the time when lakes begin ti freeze ['October', 'November'] Huuskonen, 2003
Salvelinus alpinus Spawning normally occurs between mid-October and mid-November in Newfoundland, but occurs two weeks earlier in Labrador [Landlocked Arctic charr may spawn in streams or lakes from early Ocotber to mid-November] ['October', 'November'] Bradbury, 1999
Salvelinus alpinus Salmo and most char are fall breeders, although a few populations of Arctic char breed in spring ['April', 'May', 'June'] Willson, 1997
Salvelinus alpinus Spawning was believed to have occured during late September and in the first week of October ['October', 'September'] Beddow, 1998
Salvelinus alpinus Winter spawner [Other authors described between September and April] ['April', 'September'] Humpesch, 1985
Salvelinus alpinus The first spawning of normal females were cuaght on November 9, whereas dwarf females did not begin spawning until 2 weeks later. ['November'] Jonsson and Hindar, 1982
Salvelinus alpinus Ovulation were first recorded at the end of November. In mid-January, 100% of the females had spawned ['November', 'January'] Gillet, 1991
Salvelinus alpinus Spawn in the first two week or two October ['October'] Walker, 2007
Salvelinus alpinus In the wild, Arctic charr usually spawn in the autumn at water temperatures of about 4°C ['October', 'November', 'December'] Jobling,1998
Salvelinus fontinalis October-November ['October', 'November'] Billard, 1997
Salvelinus fontinalis Begin on September, 28, reached its peal during October and early November ['October', 'November', 'September'] Hokanson, 1973
Salvelinus fontinalis October to January ['October', 'January'] Bruslé and Quignard, 2001
Salvelinus fontinalis Normally spawns in late August or in September in the nothermost part of its range (60°N), and during November in the southermost areas ['August', 'November', 'September'] Henderson, 1963
Salvelinus fontinalis Autumn No data Rivier, 2001
Salvelinus fontinalis September to November, sometimes August to December ['August', 'November', 'December', 'September'] Fishbase, 2006
Salvelinus fontinalis Usually during late September, October or November, but may take place as early as August or as late as December ['September', 'August', 'December', 'October', 'November'] Scott and Crossman, 1973
Salvelinus fontinalis From October 20 to November 26 ['October', 'November'] Snucins, 1992
Salvelinus fontinalis October ['October'] Curry, 1991
Salvelinus fontinalis October-November ['October', 'November'] Fraser, 1985
Salvelinus fontinalis Over most of the range, October is the usual time of spawing [Occurs in late summer (late August or September) in the nothern part of their rnage to early december in the southern part] ['October', 'August', 'July', 'September'] Groot, 1996
Salvelinus fontinalis Normally occurs between late September and early November in Newfoundland ['November', 'September'] Bradbury, 1999
Salvelinus fontinalis Spawning in Nort America takes place from August to December ['August', 'December'] Coad, 2006
Salvelinus fontinalis Spawn in the fall (when day length decreases) mainly in October and early December, or Late August to early September ['October', 'August', 'December', 'September'] Kerr and Grant, 1999
Salvelinus fontinalis Mid-November to December ['November', 'December'] Terver, 1984
Salvelinus fontinalis Salmo and most char are fall breeders, although a few populations of Arctic char breed in spring ['April', 'May', 'June'] Willson, 1997
Salvelinus fontinalis Brook trout were observed on or near the spanwing grounds over a 64-d period in 1994 (30 September to 2 December) and a 61-d period in 1995 (25 September to 24 November) ['November', 'December', 'September'] Blanchfield and Ridgway, 1997
Salvelinus fontinalis Winter spawner [Other authors described between October and March] ['October', 'March'] Humpesch, 1985
Salvelinus fontinalis Normally spawn during October, November and december in new Hampshire ['October', 'November'] Hoover and Hubbard, 1937
Salvelinus fontinalis The spawning season on cold lakes (Grand lac Jacques Cartier and des Neiges), starts as early as August 20, while in othr lakes it typically limited to the moth of September, with the greatest activity taking place during the first two weeks. The latest date for spawning in the Laurentide Park is about October 20 ['October', 'August', 'September'] Vladykov, 1956
Salvelinus fontinalis August-March but usually October-December ['October', 'August', 'March', 'December'] Goodyear, 1982
Salvelinus namaycush October-November ['October', 'November'] Billard, 1997
Salvelinus namaycush September to November or during winter ['March', 'January', 'September', 'February', 'November'] Bruslé and Quignard, 2001
Salvelinus namaycush November-December, but also August-September and until January ['January', 'September', 'August', 'December', 'November'] Fishbase, 2006
Salvelinus namaycush Mainly occurs in October, sometimes as early as September in the north or as late as November in south ['October', 'November', 'September'] Scott and Crossman, 1973
Salvelinus namaycush October-November ['October', 'November'] Beauchamp, 1992
Salvelinus namaycush Primarily fall spaweners although reprodcution is know to occur as early as June in Lake Superioir and as late as January in Lake Tahoe, Nevada ['January', 'June'] Kerr and Grant, 1999
Salvelinus namaycush On most areas of Canada, spawning occurs in late summer-early fall, mainly in September or October in Labrador. Several investigators have suggested that declining water temperatures and photoperiod coupled with stron on-shore winds are necessary factors triggering spawning ['October', 'August', 'July', 'September'] Bradbury, 1999
Salvelinus namaycush Salmo and most char are fall breeders, although a few populations of Arctic char breed in spring ['April', 'May', 'June'] Willson, 1997
Salvelinus namaycush Most spawning occurs in October and November when temperature is falling from 58 to 37°F, however some races may begin spawning in June ['October', 'November', 'June'] Goodyear, 1982
Stenodus leucichthys October-November ['October', 'November'] Belyaeva, 2005
Stenodus leucichthys Late summer or earty autumn ['September', 'August', 'December', 'July', 'October', 'November'] Scott and Crossman, 1973
Stenodus leucichthys September to October ['October', 'September'] Fishbase, 2006
Stenodus leucichthys Mass spawning of nelma begins in middle to late September ['September'] Chereshnev, 2000
Stenodus leucichthys Spawning takes place in October and November ['October', 'November'] Coad, 2006
Stenodus leucichthys October-November ['October', 'November'] Maitland, 1977
Stenodus leucichthys In summer and early fall ['August', 'July', 'September'] Willson, 1997
Thymallus thymallus March-April ['April', 'March'] Billard, 1997
Thymallus thymallus Mach-April until May-June ['April', 'May', 'June'] Bruslé and Quignard, 2001
Thymallus thymallus Can occur between 23 to 26 March and from 1 to 3 April ['April', 'March'] Poncin, 1996
Thymallus thymallus March but also up to May in certain areas ['March', 'May'] Persat, 2001
Thymallus thymallus Mainly March-April, sometimes until May-June ['April', 'March', 'May', 'June'] Fishbase, 2006
Thymallus thymallus From 23 March to 11 April ['April', 'March'] Ovidio, 2004
Thymallus thymallus The estimated spawning season lasted from 7 May to 1 June ['May', 'June'] Nykänen, 2004
Thymallus thymallus April ['April'] Witkowski and Kowalewski, 1988
Thymallus thymallus March or April to June ['April', 'March', 'June'] Northcote, 1995
Thymallus thymallus March-May ['April', 'March', 'May'] Environment agency, 1996
Thymallus thymallus Spring No data Haugen and Vollestad, 2000
Thymallus thymallus Late March-April to June ['April', 'March', 'June'] Northcote, 1993
Thymallus thymallus March-May ['April', 'March', 'May'] Maitland, 1977
Thymallus thymallus Spawn chiefly in spring and summer ['April', 'May', 'September', 'August', 'June', 'July'] Willson, 1997
Thymallus thymallus Spring spawner [Other authors described between March and May] ['March', 'May'] Humpesch, 1985
Thymallus thymallus The lake grayling spawns during spring, soon after melting of ice ['April', 'May', 'June'] Zaytsev, 1987
Thymallus thymallus Spring spawner No data Kristiansen and Doving, 1996
Thymallus thymallus Spring spawner No data Billard, 1981-1982
Thymallus thymallus The grayling spawn in spring ['April', 'May', 'June'] Gregersen, 2008
Thymallus thymallus L'Ombre fraye en France en Mars et Avril No data Vivier, 1958
Thymallus thymallus A lieu en mars et avril No data Carmie, 1985
Thymallus arcticus May-June ['May', 'June'] Fishbase, 2006
Thymallus arcticus April to June ['April', 'June'] Scott and Crossman, 1973
Thymallus arcticus Spring spawners: May, but vary from April to as late as July ['April', 'May', 'July'] Northcote, 1995
Thymallus arcticus Spring spawners: mid-to late May and mid July [Some as early as April and others as late as July] ['April', 'May', 'July'] Northcote, 1993
Thymallus arcticus Spawning activity was observed on the east side outlet between May 19 and June 10, 1975 and peaked from May 23 to May 25. In 1976, spawning began on the east and west sides of the outlet on May 15 and May 18 respectively. Adult grayling were seen on the east spawing grounds until June 2 and on the west spawning grounds until June 8, 1976. The peak of spawning occured from May 25 to May 29 on the east side. ['May', 'June'] Kratt and Smith, 1977
Thymallus arcticus May and June ['May', 'June'] Kaya, 1989
Thymallus arcticus The spawning of the grayling in Gret Slave Lake and surrounding areas takes place during spring - from April to May. This spawning period corresponds to the breakup of the ice on the rivers ['April', 'May', 'June'] Bishop, 1971
Thymallus arcticus Spawning activity was observed in the Fond du Lac River from 15 May to 18 June, with peak activity 25-29 May ['May', 'June'] Kratt and Smith, 1978
Thymallus arcticus Between 19 May and 10 June 1975, and between 15 May and 8 June 1976 ['May', 'June'] Kratt and Smith, 1980
Cottus gobio March-April ['April', 'March'] Billard, 1997
Cottus gobio March-April ['April', 'March'] Spillmann, 1961
Cottus gobio March-April and May in Nothern Region ['April', 'March', 'May'] Bruslé and Quignard, 2001
Cottus gobio March-April [But from Februrary to May-June] ['April', 'March', 'May', 'June'] Persat, 2001
Cottus gobio March-April, but also Ferbuary up to June ['April', 'March', 'June'] Fishbase, 2006
Cottus gobio Late February to Late April ['February', 'April'] Marconato and Bisazza, 1988
Cottus gobio March-May ['April', 'March', 'May'] Environment agency, 1996
Cottus gobio 31 March-15 May with a peak in 20 April ['April', 'March', 'May'] Bagenal, 1971
Cottus gobio March-April ['April', 'March'] Terver, 1984
Cottus gobio Females spawned in April or early in all sites ['April'] Abdoli, 2005
Cottus gobio Spawn from February to June ['February', 'June'] Tomlinson and Perrow, 2003
Ameiurus nebulosus July- August ['August', 'July'] Rosenblum, 1987
Ameiurus nebulosus May-June [April until August] ['April', 'August', 'May', 'June'] Internet, 2005
Ameiurus nebulosus June to mid-July ['June', 'July'] Burke and Leatherland, 1984
Ameiurus nebulosus Probably May-June ['May', 'June'] Scott and Crossman, 1973
Ameiurus nebulosus May and June ['May', 'June'] Kerr and Grant, 1999
Ameiurus nebulosus Late spring ['April', 'May', 'June'] Rue, 2001
Ameiurus nebulosus April-August, usually June -July ['April', 'August', 'June', 'July'] Goodyear, 1982
Ameiurus nebulosus Begins in April or May ['April', 'May'] Internet, 2001
Ictalurus punctatus April-June [Sometimes late July-early August] ['April', 'August', 'June', 'July'] Internet, 2005
Ictalurus punctatus June and July but most spawning activity apperaed to have ended by June ['June', 'July'] Mackenzie, 1989
Ictalurus punctatus Spawn in late spring or summer ['April', 'May', 'September', 'August', 'June', 'July'] Scott and Crossman, 1973
Ictalurus punctatus From Mid-April or Mid-May until July ['April', 'May', 'July'] Wellborn and Tucker, 1985
Ictalurus punctatus Late May to Mid-June ['May', 'June'] Kerr and Grant, 1999
Ictalurus punctatus From May through July ['May', 'July'] Rue, 2001
Ictalurus punctatus Mid-April to August ['April', 'August'] Goodyear, 1982
Ictalurus punctatus Late spring and early summer ['April', 'May', 'September', 'August', 'June', 'July'] Anonymous, 2006 Chapter 3
Ictalurus punctatus Mean peak spawning 13 June [Range: 8-30 June] in Lake Oahe, South and North Dakota ['June'] June, 1977
Ictalurus punctatus Fish were allowed to spawn naturally and eggs were collected on June 19 ['June'] Rach, 2004
Silurus glanis May-July ['May', 'July', 'June'] The Halyn Publishing Group limited, 1976
Silurus glanis Spawning lasted from the beginning of May to the end of the third week in June ['May', 'June'] Horvath, 1977
Silurus glanis Second half of May ['May'] Zholdasova anGuseva, 1987
Silurus glanis In Dagestan (USSR) catfish spawn at the end of May, but in Polish conditions in mid-june ['May'] Wisniewolski, 1988
Silurus glanis May-June ['May', 'June'] Hovarth, 1992
Silurus glanis May-June ['May', 'June'] Billard, 1997
Silurus glanis May-June ['May', 'June'] Bruslé and Quignard, 2001
Silurus glanis June, thermophilic species ['June'] Ulikowski, 2004
Silurus glanis June to August ['August', 'June'] Alp, 2004
Silurus glanis May-June ['May', 'June'] Fishbase, 2006
Osmerus eperlanus Spawning begins on April 30 in the upper reaches of the Il'd' river in 1970, on May around Shumorovskiy Island and on May 9-11 in the estuary ['April', 'May'] Ivanova and Polovka, 1972
Osmerus eperlanus Smelt were first detected in the vicinity of the spawning grounds on 10 March, in both 1980 and 1981. ['March'] Hutchinson and Mills, 1987
Osmerus eperlanus Depending on location, peak spawning occurs in late March through late May ['March', 'May'] Buckley, 1989
Osmerus eperlanus The dates of first spawning ranged between 22 February and 15 March, a span of 22 days [Aslo described as commencing on 9-10 March] ['February', 'March'] Lyle and Maitland, 1997
Osmerus eperlanus March-April ['April', 'March'] Billard, 1997
Osmerus eperlanus February-May ['February', 'April', 'March', 'May'] Rochard, 2001
Osmerus eperlanus Spawning in the river Shannon takes place between the end of February and early April ['February', 'April'] Quigley, 2004
Osmerus eperlanus Considering these determinations, one can estimate that for 1993, smelt spawned between 22 March and 7 April with a peak spawning effort on 29 March. ['April', 'March'] Sepulveda, 1994
Osmerus eperlanus March-April, but also in February and May ['February', 'April', 'March', 'May'] Fishbase, 2006
Osmerus eperlanus Such temperature was regitered at the end of March or at the beginning of April in 1997-1998 [… According to some lliterature sources, the peak of abundance of spawning smelt occurred on April 17, I.e. much later ['April', 'March'] Ziliukine, 2002
Osmerus eperlanus Spawn during early spring ['April', 'May', 'June'] Kowalski, 2006