Male - Onset of spermatogenesis

Species Primary Data Secondary Data References
Aphanius iberus March-April [Beginning of gonadal activity] ['April', 'March'] Vargas and De Sostoa, 1997
Aphanius iberus Gonad development started in February and continued till April ['February', 'April'] Fernandez-Delgado, 1988
Valencia hispanica January ['January'] Caiola, 2001
Cobitis taenia Autumn No data Marconato and Rasotto, 1989
Cobitis paludica Early October ['October'] Oliva-Paterna, 2002
Alburnoides bipunctatus Increase regularly from September [2.4, n=7] to December [3.7, n= 3] ['December', 'September'] Yildirim, 1999
Aspius aspius September-October ['October', 'September'] Kompowski et Neja, 2004
Barbus barbus A new increase in gonad weight, seems to be in February ['February'] Lobon-Cervia and Fernandez-Delgado, 1984
Cyprinus carpio Spermatogenesis occur in summer and spermatozoa are found in the testis in autumn ['September', 'August', 'December', 'July', 'October', 'November'] Billard, 1995
Cyprinus carpio August ['August'] Crivelli, 1981
Cyprinus carpio January in Australia ['January'] Smith and Walker, 2004
Gobio gobio From December increase regularly ['December'] Kestemond, 1989
Gobio gobio Developed gradually through the winter ['February', 'March', 'January'] Mann, 1980
Leuciscus cephalus December to February, slight increase in GSI ['February', 'December'] Guerriero, 2005
Leuciscus cephalus Increase in November ['November'] Sasi, 2003
Leuciscus cephalus The redevelopment of gonads did not begin until September ['September'] Mann, 1976
Leuciscus cephalus October-november ['October'] Poncin, 1989
Leuciscus cephalus Weight of gonads increase after September ['September'] Zelepien, 1997
Leuciscus cephalus After August, the gonads began to develop and the values of GSI again started to increase gradually until November ['August', 'November'] Ünver, 1998
Leuciscus cephalus September-October ['October', 'September'] Erdogan, 2002
Leuciscus leuciscus August [Elaboration of gonad tissue was not significant until August/September, from which time development continued through winter months] ['March', 'January', 'September', 'August', 'February'] Mann, 1974
Phoxinus phoxinus Mid-February to begining of March ['February', 'March'] Mills, 1987
Phoxinus phoxinus September-October. By October, GSI had risen to 1.23% ['October', 'September'] Mills and Eloranta, 1985
Rutilus rutilus September until November [stops during winter] ['March', 'January', 'September', 'February', 'November'] Escaffre and Billard, 1976
Rutilus rutilus September-October and contiue to increase regularly ['October', 'September'] Mann, 1973
Rutilus rutilus September to October ['October', 'September'] Tarkan, 2006
Rutilus rutilus Gonads of the male in August ['August'] Noges and Järvet, 2005
Scardinius erythrophthalmus November (overwinter in stage III) ['February', 'November', 'March', 'January'] Shikhshabekov, 1979
Scardinius erythrophthalmus October ['October'] Tarkan, 2006
Tinca tinca April ['April'] Breton, 1980
Tinca tinca March-April [Secondary spermatogonia are then tranformed during April and May into primary spermatogocytes] ['April', 'March', 'May'] Linhart and Billard, 1995
Tinca tinca Changes in the ovaries take place in the ovaries were initiated in April, i.e. at the time of intensive vitellogenesis ['April'] Pimpicka, 1989
Tinca tinca October slight increase, but could also starts in mid-April ['April', 'October'] Kubu and Kouril, 1985
Gambusia affinis Early May ['May'] Koya and Iwase, 2004
Esox lucius September to November [High cellular activity, followed by maturation of spermatozoa from December to Mars-April] ['April', 'November', 'December', 'September'] Bruslé and Quignard, 2001
Esox lucius August ['August'] Souchon, 1983
Esox lucius August ['August'] Billard, 1996
Esox lucius End of August ['August'] Lenhardt, 1992
Esox lucius Developing stage starts in September ['September'] Lenhardt and Cakic, 2002
Esox lucius Stage 2, from Septemeber to November ['November'] Hoffmann, 1980
Esox lucius Late August ['August'] Treasurer, 1990
Esox lucius Gonad growth began in August, ovarian growth occurred mainly during winter ['February', 'August', 'March', 'January'] Diana and Mackay, 1979
Lota lota July [Increase from July to November] ['November', 'July'] Brylinska, 2002
Lota lota Slight increase in June, clear increase in November ['November', 'June'] Pulliainen and Korhonen, 1990
Gasterosteus aculeatus February-March ['February', 'March'] Copp, 2002
Gasterosteus aculeatus September ['September'] Borg, 1982
Gasterosteus aculeatus September, based on Fig 11.b ['September'] Sokolowska and Sokolowska, 2006
Pungitius pungitius February-March ['February', 'March'] Copp, 2002
Pungitius pungitius Early spermatogenetic stages, e.g. spermatogonia and spermatocytes began to dominate after spawning in August ['August'] Sokolowska and Skora, 2002
Lepomis gibbosus It apperas that first sign of gonadal recrudescence occurred during late May ['May'] Burns, 1976
Micropterus salmoides A recrudescence of testicular recrudescence was evident from October through December ['October', 'December'] Rosenblum, 1994
Micropterus salmoides Recrudescence commenced in September-October ['October', 'September'] Bennett and Gibbons, 1975
Micropterus salmoides Slight increase in GSI in March, based on graph ['March'] Beamish, 2005
Dicentrarchus labrax October-November ['October', 'November'] Prat, 1990
Dicentrarchus labrax December-January ['January', 'December'] Zohar, 1984
Dicentrarchus labrax December [In Arcachon, France], October [In Sète, France], September [Tunisia] ['October', 'December', 'September'] Barnabé, 1980
Dicentrarchus labrax October ['October'] Gonzalez and Piferrer, 2003
Dicentrarchus labrax October ['October'] Rodriguez, 2004
Dicentrarchus labrax November ['November'] Rodriguez, 2005
Morone americana It first rose significantly above basal summer values in November ['August', 'November', 'July', 'September'] Jackson and Sullivan, 1995
Morone americana Mature-latent. Testes white, firm in texture, enlarging but milt not running (July-October) ['October', 'July'] Mansuetti, 1961
Morone chrysops September [Testes developped rapidly in fall] ['September'] Ruelle, 1977
Morone saxatilis Males initiated spermiogenesis by late september and spermiation by late February or early March ['February', 'March'] Woods III and Sullivan, 1993
Morone saxatilis Ultrasonic sex detemrination was accurate from october to May, even tough all males were spermiating only during April ['April', 'May'] Blythe, 1994
Morone saxatilis In October-November, spermatogenesis began in all males in reared conditions ['October', 'November'] Holland, 2000
Gymnocephalus cernuus Male gonadal activity occurs during spring and autumn ['April', 'May', 'December', 'June', 'October', 'November'] Crosier, 2005
Gymnocephalus cernuus Two periods of gonad activity are observed in males in the course of the year, spring and autumn wves of spermatogenesis occur [Winter conditions provoke a considerable slowing down of spermatogenesis, ending in most specimens (81%) with its cessation in the phase of reprodcution of spermatogonia ['April', 'May', 'December', 'June', 'October', 'November'] Butskaya, 1981
Gymnocephalus cernuus In September, male gonads were more advanced in development (23.5% and 76.5% at stage 2 and 3, respectively). No stage 4 gonads were found at that time ['September'] Neja, 1988
Perca flavescens Fast growth of the testes during autumn, begin in September and remain high until spring ['April', 'May', 'September', 'December', 'June', 'October', 'November'] Dabrowski, 1996
Perca flavescens GSI increased significantly in August [Testes composition did not change between Septemner and March] ['August', 'March'] Tansichuk and Mackay, 1989
Perca fluviatilis End of August ['August'] Sulistyo, 2000
Perca fluviatilis August ['August'] Treasurer and Holliday, 1981
Perca fluviatilis August ['August'] Le Cren, 1951
Sander lucioperca In the Northern hemisphere, gametogenesis is initiated in August-September when both temperature and photoperiod are decreasing. Gametes are synthesized during autumn, winter and spring ['April', 'March', 'January', 'May', 'September', 'August', 'December', 'June', 'February', 'October', 'November'] Wang, 2009
Sander vitreus September, GSI rise significantly and stay relatively constant until March ['March', 'September'] Malison, 1994
Sander vitreus August ['August'] Henderson, 1996
Coregonus lavaretus July ['July'] Fuller, 1976
Coregonus lavaretus June ['June'] Heese, 1990
Coregonus albula In June and July spermatogonial divisions were observed in the ampules of some gonads ['June', 'July'] Dlugosz and Worniallo, 1985
Coregonus albula Developped slowly from spring to the end of June (Maturation stage III: compressing and stretching phase) for the nominate form. For deepwater form, in summer and autumn, gonads mature very slowly, just passing maturation stages II and III while reaching maturation stage IV inly in december. ['April', 'May', 'September', 'August', 'December', 'June', 'July', 'October', 'November'] Anwand, 1998
Coregonus clupeaformis Initiated in early summer ['August', 'July', 'September'] Rinchard, 2001
Oncorhynchus kisutch In November [For broodstock population cultured in fish farm in southern Chile] ['November'] Estay, 1998
Oncorhynchus mykiss August, September ['August', 'September'] Ya-yi, 2001
Salmo trutta fario May-June ['May', 'June'] Billard, 1987
Salvelinus fontinalis Development begins in June for both sexes and reaches a peak in September ['June', 'September'] Wydoski and Cooper, 1966
Thymallus thymallus Mid-July, slight increase ['July'] Witkowski, 1989
Ameiurus nebulosus Beginning of April ['April'] Burke, 1984
Silurus glanis End of July-August ['August', 'July'] Zholdasova and Guseva, 1987
Silurus glanis December ['December'] Alp, 2004