Egg - Oocyte diameter

(0-25 mm)


Species Primary Data Secondary Data Reference
Anguilla anguilla 1.2 1.2 Deelder, 1970
Anguilla anguilla Eggs diameters are relatively uniform 1.05 ± 0.15 [Some discrepancy exists between different authors as to size of the European eel egg: 0.93-1.4; 1.0-1.1; 1.2-1.6; 0.9-1.1.3 mm] 1.05 Boetius and Boetius, 1980
Anguilla anguilla Eggs of 1.0-1.3 mm in diameter have been considered to be fully ripened 1.15 Epler et al, 1981
Anguilla anguilla Average diameter: 1.15 1.15 Bruslé and Quignard, 2001
Anguilla anguilla 1.1-1.2 [Seems to be fertilized eggs] 1.15 Bonislawska et al, 2001
Anguilla anguilla 1-1.4 [Unfertilized eggs] 1.2 Pedersen, 2003
Anguilla anguilla 0.829-0.924 [Ovulated egg] 0.88 Pedersen, 2004
Anguilla anguilla 0.8-0.95 [Stripped oocytes] 0.88 Palstra et al, 2005
Anguilla anguilla Transparent ripe eggs with average diameter of 1.2 ± 0.06 1.2 Amin, 1998
Anguilla anguilla Mode 1.14, range 0.9-1.38 1.14 Fishbase, 2006
Anguilla anguilla 1.2 1.2 Coad, 2005
Alosa alosa 1.5-2 1.75 Spillmann, 1961
Alosa alosa 1.5-2 1.75 Bruslé and Quignard, 2001
Alosa alosa 1-2 1.5 Taverny et al, 2000
Alosa alosa 1.6 1.6 Billard, 1997
Alosa alosa 1-2 [Not specified] 1.5 Bensettiti and Gaudillat, 2002
Alosa fallax 1.2-1.5 1.35 Spillmann, 1961
Alosa fallax 0.8-1.7 [Not specified] 1.25 Bensettiti and Gaudillat, 2002
Alosa fallax 0.72-1.7 [Diameter of egg before hydratation] 1.21 Taverny et al, 2000
Alosa fallax 1.5 1.5 Billard, 1997
Alosa fallax In ripe ovaries, ooctye diameter reaches 1.052 mm. Nevertheless, larger oocytes (1.415 mm) can be observed in partially spent and spent ovaries, which were not shed and will be resorbed 1.05 Pina et al, 2003
Alosa fallax Oocyte diameter 1.325 ± 0.032 1.32 Lopez et al, 2007
Alosa sapidissima >1.6 [Hydrated yolked oocytes] 1.6 Olney et al, 2001
Alosa sapidissima 1.8 [Unfertilized egg] 1.8 Mills, 2004
Alosa sapidissima Two modes for hydrated oocytes: 1.8 and 2.0 [Range from 1.6 to 2.4] 1.8 Olney and McBride, 2003
Alosa sapidissima 0.8-1.27 1.04 Anonymous, 2006 Chapter 3
Aphanius iberus 0.8-1.2 [Ovules with the larger diameter in ova] 1.0 Vargas and De Sostoa, 1997
Aphanius iberus Big eggs 0.0 Billard, 1997
Aphanius iberus Big eggs 0.0 Keith, 2001
Aphanius iberus 1.20 [Average diameter of the largest oocyte in fully developed ovaries] 1.2 Vila-Gispert and Moreno-Amich, 2002
Aphanius iberus Mean egg diameter of 0.7285 for age 1 and 0.8145 for age 0 0.73 Fernandez-Delgado et al, 1988
Valencia hispanica 1-3 2.0 Keith, 2001
Valencia hispanica Up to 2.2 [Mature oocytes] 2.2 Caiola et al, 2001
Barbatula barbatula 1 [Mean egg size] 1.0 Skryabin, 1993
Barbatula barbatula About 1 1.0 Spillmann, 1961
Barbatula barbatula 0.9-1.4 1.15 Bruslé and Quignard, 2001
Barbatula barbatula 1 1.0 Perrin, 2001
Barbatula barbatula 0.9-1 0.95 Fishbase, 2006
Barbatula barbatula 0.9 [Not specffied] 0.9 Copp et al, 2002b
Barbatula barbatula 1.08 [Not specified] 1.08 Sauvonsaari, 1971
Cobitis taenia About 1 1.0 Spillmann, 1961
Cobitis taenia 1.2-1.5 [Large oocytes] 1.35 Vaino and Saat, 2003
Cobitis taenia 1.1-1.5 1.3 Bruslé and Quignard, 2001
Cobitis taenia 1.14 ± 0.07 only for yolk 1.14 Bohlen, 1999
Cobitis taenia 1.0 1.0 Perrin, 2001
Cobitis taenia Can reach 1.58 [Not specified] 1.58 Coad, 2006
Cobitis taenia Large ripe yellowish eggs 1.3-1.6 mm 1.45 Marconato and Rasotto, 1989
Cobitis taenia About 1 1.0 Bensettiti and Gaudillat, 2002
Cobitis paludica 1.278 ± 0.016 [Egg within the gonad]± 1.28 Oliva-Paterna et al, 2002
Cobitis paludica 1.00 [Average diameter of the largest oocyte in fully developed ovaries] 1.0 Vila-Gispert and Moreno-Amich, 2002
Blicca bjoerkna 1-1.5 1.25 Spillmann, 1961
Blicca bjoerkna 1.5 1.5 Bruslé and Quignard, 2001
Blicca bjoerkna 1-1.5 1.25 Rinchard, 1996
Blicca bjoerkna 1-1.5 1.25 Kestemont, 2001
Blicca bjoerkna In 70-80% of the females two distinct generations of egg cells were observed before spawing: oocyte diamters in the range 0.822-0.946 and 0.316-0.550 mm, respectively 0.43 Luksiene et al, 2000
Abramis brama 1.5 1.5 Bruslé and Quignard, 2001
Abramis brama 1.6-2 [Not precised] 1.8 Internet, 2005
Abramis brama 0.83-1.16 [First batch] to 0.53-0.73 [Second batch] 0.99 Sokolova, 1990
Abramis brama 1.5-2 1.75 Olivier, 2001
Abramis brama 1.62-1.82 [Mature eggs] 1.72 Backiel and Zawiska, 1968
Abramis brama Ripe, freshly stripped eggs were yellow-gray in colour and their average size before the activation and swelling was 1.10 mm 1.1 Penaz and Gajdusek, 1979
Abramis brama Troploplasmatic growth oocytes laid on spawning grounds have a diameter of 0.8 to 1.60 mm and weight from 0.75 to 1.25 mg. Also said that mature oocytes, of diameter 0.95-1.60 mm and weight 0.61-0.93 mg are laid during the ovulation 1.27 Brylinska and Boron, 2004
Alburnoides bipunctatus 2.16 [Not precised] 2.16 Coad, 2005
Alburnoides bipunctatus 2 2.0 Bruslé and Quignard, 2001
Alburnoides bipunctatus 2.1 2.1 Persat, 2001
Alburnoides bipunctatus The diameter of all measured oocytes ranged from 0.20 to 1.96 mm (the smallest eggs were translucent and did not contain yolk, the large eggs where yellowish and filled with yolk), with the mean 0.95 mm, whereas the mean diameter of yolked (vitellogenic) oocytes varied seasonally from 0.86 mm to 1.20 mm 1.96 Polacik and Kovac, 2006
Alburnus alburnus 1.5 1.5 Spillmann, 1961
Alburnus alburnus 1.5 1.5 Rinchard, 1996
Alburnus alburnus 1.5 1.5 Bruslé and Quignard, 2001
Alburnus alburnus 1.2-1.5 1.35 Carrell and Olivier, 2001
Alburnus alburnus 1.1-1.4 [Not specified] 1.25 Coad, 2006
Alburnus alburnus 1.2-1.5 [Not specified] 1.35 Agence de l'eau,
Aristichthys nobilis 0.7-1.3 1.0 Horvath et al, 1992
Aristichthys nobilis Most 0.5-1.2 [Egg within ovary], but up to 1.8 0.85 Schrank and Guy, 2002
Aristichthys nobilis 1.25-1.55 [Egg before swelling up] 1.4 Mikodina and Makeyeva, 1981
Aristichthys nobilis Average 1.64 [Diameter of the ovulated oocytes] 1.64 Makeyeva et al, 1996
Aristichthys nobilis 1.4-1.5 [Unswollen egg] 1.45 Jennigs, 1988
Aristichthys nobilis Mean of 1.51 ± 0.016 in 1982 and 1.52 ± 0.06 in 1983 1.51 Verigin et al, 1990
Aspius aspius 1.7 1.7 Coad, 2005
Barbus barbus 1.5 1.5 Spillmann, 1961
Barbus barbus 1.5-2.3 1.9 Bruslé and Quignard, 2001
Barbus barbus 3.00 [Average diameter of the largest oocyte in fully developed ovaries] 3.0 Vila-Gispert and Moreno-Amich, 2002
Barbus barbus 2-2.5 2.25 Fishbase, 2006
Barbus barbus The average size of the eggs was 1.95 prior to fertilisation 1.95 Penaz, 1973
Barbus barbus The mean diameter of non-swollen barbel eggs is 2.0 mm 2.0 Krupta, 1988
Carassius auratus 1.2-1.5 1.35 Mellinger, 2002
Carassius auratus 1.0-1.7 1.35 Internet, 2005
Carassius auratus 1.5-1.7 1.6 Bruslé and Quignard, 2001
Carassius auratus 1.5-1.7 1.6 Persat, 2001
Carassius auratus 1.2-1.5 1.35 Scott and Crossman, 1973
Carassius auratus 1.4 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.4 Olden et al, 2006
Carassius carassius 0.62-1.34 [Egg diameter in ovarium: ripe with yolk] 0.98 Holopainen, 1997
Carassius carassius 1-1.5 1.25 Bruslé and Quignard, 2001
Carassius carassius 1.3-1.7 1.5 Persat, 2001
Carassius carassius 1.4-1.7 [Not specified] 1.55 Fishbase, 2006
Carassius carassius Crucian carp eggs just before spawning have 0.8-1.2 mm in diameter. They are much larger than the eggs from the anterior part of the ovary, which are depostied later; before the first spawning they have 0.2-0.7 mm in diameter. Detailed observations and measurements revealed that the diameter of the eggs from the polder Novo-Marievskij was 0.91, 0.98, 0.93, 0.80-0.91 and 0.90 mm in March, April, May, June and August, respectively, mean egg diameter in the population studied was 0.903 mm 1.0 Sczerbowski and Szczerbowski, 1996
Carassius carassius The eggs of crucian carp are spherical and yellowish-orange. The diameter of the eggs were 1.37 mm (SD = 0.09, n = 62) in HL 1.61 mm (SD = 0.10, n = 62) in Varaslampi. […] Other author give a diameter of 1.05-1.35 mm for mature oocytes (eggs) of crucian carps in West Siberian waters. Also describes as 1.45-1.52 mm. 1.2 Laurila and Holopainen, 1990
Chondrostoma nasus 1.5 1.5 Spillmann, 1961
Chondrostoma nasus The average size of eggs increased from original 1.76 mm 1.76 Penaz, 1974
Chondrostoma nasus Diameter of freshly laid eggs was 1.6 mm 1.6 Prawochenski, 1964
Chondrostoma toxostoma 1.75-2.2 [Not specified] 1.98 Bruslé and Quignard, 2001
Chondrostoma toxostoma 1.5-1.7 [South-west of France], 1.8-2.2 [South-east of France] 1.6 Gozlan and Chappaz, 2001
Chondrostoma toxostoma 2.00 [Average diameter of the largest oocyte in fully developed ovaries] 2.0 Vila-Gispert and Moreno-Amich, 2002
Chondrostoma toxostoma About 2 [Not specified] 2.0 Bensettiti and Gaudillat, 2002
Ctenopharyngodon idella 0.7-1.3 1.0 Horvath et al, 1992
Ctenopharyngodon idella 1.06-1.60 [Egg before swelling] 1.33 Mikodina and Makeyeva, 1981
Ctenopharyngodon idella 1.2-1.3 [Egg on ovulation] 1.25 Fishbase, 2006
Ctenopharyngodon idella 2.0-2.5 [Said when release] 2.25 Cudmore and Mandrak, 2004
Ctenopharyngodon idella 1.30-1.40 [Unfertilized eggs] 1.35 Khan et al, 2004
Ctenopharyngodon idella 1.3 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.3 Olden et al, 2006
Ctenopharyngodon idella On ovulation, the egg is 1.2-1.3 in diameter 1.25 Shireman and Smith, 1983
Cyprinus carpio 1.24-1.42 1.33 Linhart et al, 1995
Cyprinus carpio 1.2-1.86 1.53 Bruslé and Quignard, 2001
Cyprinus carpio 1.5-2.1 but as small as 1.0 [Not specified if swollen] 1.8 Internet, 2005
Cyprinus carpio 1.0-1.5 1.25 Horvath et al, 1992
Cyprinus carpio 1.25 1.25 Aldridge, 1999
Cyprinus carpio 1.5 1.5 Lafaille and Crivelli, 2001
Cyprinus carpio About 1.0 1.0 Scott and Crossman, 1973
Cyprinus carpio 1.0 1.0 Tyler and Sumpter, 1996
Cyprinus carpio 1.20-2.00 [Average diameter of the largest oocyte in fully developed ovaries] 1.6 Vila-Gispert and Moreno-Amich, 2002
Cyprinus carpio 1.5 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.5 Olden et al, 2006
Cyprinus carpio 1.8-1.9 [Diameter of normal eggs] 1.85 Woynarovich, 1962
Cyprinus carpio Most mature carp ovaries contained oocytes : 1.0-1.2 mm diameter 1.1 Bieniarz et al, 1979
Cyprinus carpio The average diameter of unfertilized and unactivated eggs was 1.25 mm 1.25 Penaz et al, 1983
Cyprinus carpio Unfertilized eggs are about 1-1.7 mm, and average 1.2-1.4 mm 1.35 Smith, 2004
Cyprinus carpio Average diameter of unfertilized eggs immediatly after spawning was 1.2-1.6 mm (mean1.3 mm) 1.4 Matlak, 1970
Cyprinus carpio Egg diameter in 11 month old and 23 month old carp, vary according to different king of carp from 0.79 +/- 0.025, 0.94 +/- 0.02; 1.29 +/-0.035 0.79 Hulata et al, 1974
Gobio gobio 1.375-1.625 [Ova] 1.5 Kennedy and Fitzmaurice, 1972
Gobio gobio 1.5-2 1.75 Bruslé and Quignard, 2001
Gobio gobio 2 [Not specified] 2.0 Spillmann, 1961
Gobio gobio 1.2 1.2 Rossechi and Kestemont, 2001
Gobio gobio 1.4-1.8 1.6 Fishbase, 2006
Gobio gobio 1.126 [Mean egg size, not specified] 1.13 Rosecchi et al, 2001
Gobio gobio 1.2 1.2 Tyler and Sumpter, 1996
Gobio gobio 0.73-1.76, up to 2.20 ? [Average diameter of the largest oocyte in fully developed ovaries] 1.25 Vila-Gispert and Moreno-Amich, 2002
Gobio gobio 1.8 [Not specified] 1.8 Copp et al, 2002b
Gobio gobio Non-inseminated, freshly stripped gudgeon eggs are 0.99 mm in diameter 0.99 Penaz and Prokes, 1978
Gobio gobio Unfertilized and not swollen fish eggs measured 1.24 mm on average, with the mean range from 1.17 to 1.32 mm (and their mass averaged 0.70 mg; 0.67 to 0.78) 1.24 Palikova and Krejci, 2006
Hypophthalmichthys molitrix 0.7-1.3 1.0 Horvath et al, 1992
Hypophthalmichthys molitrix 1.08-1.43 [Egg before swelling] 1.25 Mikodina and Makeyeva, 1981
Hypophthalmichthys molitrix 0.7-1.6 [Unfertilized at stage IV] 1.15 Esmaeili and Johal, 2005
Hypophthalmichthys molitrix Mean of 1.27 ± 0.05 in 1982 and 1.25 ± 0.03 in 1983 1.27 Verigin et al, 1990
Leucaspius delineatus 0.5-1.5 1.0 Coad, 2005
Leucaspius delineatus 1-1.4 1.2 Bruslé and Quignard, 2001
Leucaspius delineatus 1.4 1.4 Cassou and Le Louarn, 1991
Leucaspius delineatus 1-1.4 [Not specified] 1.2 Agence de l'eau,
Leuciscus cephalus 0.62-1.06 [Ovarium diameter] but all studies 0.55-1.50 0.84 Kalkan et al, 2005
Leuciscus cephalus 1.5-2 [Not specified] 1.75 Bruslé and Quignard, 2001
Leuciscus cephalus 0.83-1.5 1.17 Unlu and Balci, 1993
Leuciscus cephalus 1.4 [Before water hardening] 1.4 Changeux and Le Louarn, 2001
Leuciscus cephalus 1.00-1.95 in five different populations, up to 3.30 ? [Average diameter of the largest oocyte in fully developed ovaries] 1.48 Vila-Gispert and Moreno-Amich, 2002
Leuciscus cephalus 1.06 [Ripe eggs] 1.06 Kalkan et al, 2005
Leuciscus cephalus The maximum egg diameter in March and April were 1.350 and 1.275 mm, respectively [as oocytes in ovaries], in other studies: 0.78-1.20; 0.55-1.38; 0.96-1.35 0.99 Sasi, 2003
Leuciscus cephalus The highest mean egg diameter was found in May (1.04 mm) and the lowest values was found in July (0.46 mm). Eggs diameters were determine din other studies at 0.78-1.20 mm, 0.55-1.38 mm, 1.03 mm, and 0.83-1.50 mm 0.99 Ünver, 1998
Leuciscus cephalus Diameter of mature eggs ranges from 1.5-2.0 mm 1.75 Zelepien, 1997
Leuciscus cephalus Egg diameter varied from 100 µm and 137 µm with a mean of 119 µm 100.0 Erdogan et al, 2002
Leuciscus idus 1.23-1.88 [Seems to be fertilized eggs] 1.55 Bonislawska et al, 2001
Leuciscus idus 1.2-1.6 mm [Unswollen egg] 1.4 Witkowski et al, 1997
Leuciscus leuciscus 1.5 1.5 Spillmann, 1961
Leuciscus leuciscus 2 2.0 Bruslé and Quignard, 2001
Leuciscus leuciscus 1.5 [Not specified] 1.5 Persat, 2001
Leuciscus leuciscus 1.7 1.7 Tyler and Sumpter, 1996
Leuciscus leuciscus 1.50 [Average diameter of the largest oocyte in fully developed ovaries] 1.5 Vila-Gispert and Moreno-Amich, 2002
Leuciscus leuciscus 1.5 [Not specified] 1.5 Copp et al, 2002b
Leuciscus leuciscus Mean 1.2, range 1.1-1.4 [Egg within ovary] 1.25 Lobon-cervia et al, 1996
Leuciscus leuciscus Diameter means range from 1.34 to 1.56 [Unfertilized eggs] 1.34 Mann and Mills, 1985
Mylopharyngodon piceus 1.20-1.36 [Egg before swelling] 1.28 Mikodina and Makeyeva, 1981
Phoxinus phoxinus 1-1.5 1.25 Spillmann, 1961
Phoxinus phoxinus 1-1.8 1.4 Bruslé and Quignard, 2001
Phoxinus phoxinus 1.19-1.46 [Released egg] 1.32 Mills, 1987
Phoxinus phoxinus 0.9-1.2 [Almost ripe eggs] 1.05 Papadopol and Weinberger, 1975
Phoxinus phoxinus 1.40 [Average diameter of the largest oocyte in fully developed ovaries] 1.4 Vila-Gispert and Moreno-Amich, 2002
Phoxinus phoxinus Mainly 1.5 [Not specified] 1.5 Copp et al, 2002b
Phoxinus phoxinus 1.3-1.7 eggs to be laid 1.5 Heese, 1984
Phoxinus phoxinus The mature egg has a mean diameter of 1.13 1.13 Soin et al, 1982
Phoxinus phoxinus The egg when just ready for extrusion measures about 1.3-1.4 mm in diameter 1.35 Frost, 1943
Phoxinus phoxinus The largest eggs (1.4 mm diameter) were found in a sample of P. phoxinus from 3 June in which females freely released eggs from the oviduct following gentle pressure on the abdomen. Fish caught at another site the preivous day (2 June) contained smaller eggs (0.87-0.93 mm) which were presumably some days away from being released 0.9 Mills and Eloranta, 1985
Pimephales promelas 1.2-1.3 1.25 Mellinger, 2002
Pimephales promelas 1.2-1.5 1.35 Cloud et al, 1988
Pseudorasbora parva 1.2-1.4 x 0.8-1.0 [Just spawned eggs] 1.3 Makeyeva and Mokamed, 1982
Pseudorasbora parva 1.2 1.2 Rossechi et al, 2001a
Pseudorasbora parva 1.18 1.18 Rosecchi et al, 2001
Rhodeus sericeus 2.4-3.1 [Not specified] 2.75 Smith et al, 2004
Rhodeus sericeus 2.6 [Larger diameter, the other is 1.7] 2.6 Bruslé and Quignard, 2001
Rhodeus sericeus 1.0-1.5 to 2.5-3.0 1.25 Oliver and Carrel, 2001
Rutilus rutilus 1-1.5 1.25 Spillmann, 1961
Rutilus rutilus 1.27-1.33 1.3 Kuznetsov and Khalitov, 1978
Rutilus rutilus 1-1.5 1.25 Rinchard, 1996
Rutilus rutilus 1.1-1.5 1.3 Le Houarn et al, 2001
Rutilus rutilus 0.62-1.09 [Vitellogenic egg], but vary between 1.0-2.1 for other areas in Europe but not specified 0.85 Vila-Gispert and Moreno-Amich, 2000
Rutilus rutilus 1.0-1.5 1.25 Fishbase, 2006
Rutilus rutilus 1.5 1.5 Tyler and Sumpter, 1996
Rutilus rutilus 1.00-1.33 in three different populations, and 1.90-2.10 in three others [Average diameter of the largest oocyte in fully developed ovaries] 1.17 Vila-Gispert and Moreno-Amich, 2002
Rutilus rutilus 1.4 [Not specified] 1.4 Copp et al, 2002b
Rutilus rutilus 1.62 ± 0.3 and 1. 75 ± 0.4 [Mean high egg diameter] 1.62 Tarkan et al, 2006
Rutilus rutilus The modes of egg size frequencies prior to spawning varied between 1.23 and 1.32 mm. The egg diameter in the prespawning period fluctuated between 0.97 and 1.67 (up to 1.85) in fish caught in 1980 and 1981, whereas in small fish caught in 1982 the variation covered 0.88 and 1.58 mm. In other studies, the average diameter of ova prior to spawning was: 1.1; 1.16; or 1.27 1.32 Libovarsky et al, 1985
Rutilus rutilus The egg diameter, from ovary, varied from 0.9 to 1.45 mm in Gomishan roach compared to 0.95-1.3 mm in Anzali roach 1.12 Naddafi et al, 2005
Scardinius erythrophthalmus 1 1.0 Spillmann, 1961
Scardinius erythrophthalmus 1.5-1.7 1.6 Bruslé and Quignard, 2001
Scardinius erythrophthalmus 1.4-1.9 1.65 Lafaille et al, 2001
Scardinius erythrophthalmus 1.0-1.7 1.35 Fishbase, 2006
Scardinius erythrophthalmus 0.54-0.88 [Vitellogenic egg] 0.71 Vila-Gispert and Moreno-Amich, 2000
Scardinius erythrophthalmus 1.30 [Average diameter of the largest oocyte in fully developed ovaries] 1.3 Vila-Gispert and Moreno-Amich, 2002
Scardinius erythrophthalmus 1.12 ± 0.2 and 1. 20 ± 0.3 [Mean high egg diameter] 1.12 Tarkan et al, 2006
Scardinius erythrophthalmus 1-1.5 Not specified] 1.25 Korzelecka and Winnicki, 1998
Scardinius erythrophthalmus 1 [Not specified] 1.0 Hicks, ???
Tinca tinca 0.4-0.5 0.45 Horvath et al, 1992
Tinca tinca <1 1.0 Spillmann, 1961
Tinca tinca <1 1.0 Breton et al, 1980
Tinca tinca 0.5-0.8 0.65 Bruslé and Quignard, 2001
Tinca tinca 0.4-0.5 or 0.79 [Ova before hydration] 0.45 Linhart and Billard, 1995
Tinca tinca 0.6-0.7 [Not specified] 0.65 Horvath et al, 1992
Tinca tinca Mean of 1.078 ± 0.014 [Ripening ovum] 1.08 Alas and Solak, 2004
Tinca tinca The eggs are yellow-green in colour and their mean size before activation and water intake was 0.79 ± 0.1 mm (N=30) [Also described in the literrature as 1.0-1.3 mm, 1.3-1.4 and as much as 1.9 for non-swollen eggs] 0.79 Penaz et al, 1981
Tinca tinca According to different authors: unswollen diameter of eggs vary from : 0.79; 1.0-1.3; 1.3-1.4 and 1.9 1.15 Kubu and Kouril, 1985
Vimba vimba 1.3-1.4 1.35 Coad, 2005
Vimba vimba 1.43 1.43 Bruslé and Quignard, 2001
Vimba vimba 3 fractions of spawn with average grain of 1.4, 0.9 and 0.6 mm 0.6 Wajdowicz, 1974
Vimba vimba Two size groups of eggs were found in gonads, the first of size 1.15-1.63 mm in stage "E", the second with size 0.4-0.6 mm in stage "C". The mean egg size was 1.33 mm (1.26-1.41 mm). We obtained 9500 eggs (mean diameter 1.51 mm) from the female with SL= 213mm (age 5 years), and 7400 eggs (mean diameter 1.46 mm) from the female with Sl= 188 mm(age 4 years) 1.39 Lusk et al, 2005
Vimba vimba Egg diameter from the first batch is the largest (approx. 1.4 mm); in the final batch, eggs are much smaller (approx. O.6 mm in diameter). 1.4 Luszczek et al, 2008
Gambusia affinis 1.8-2.1 but also 2.4-2.8 [Not specified] 1.95 Internet, 2005
Gambusia affinis 1.6-2.1 1.85 Fishbase, 2006
Gambusia affinis 1.5 [Average diameter of the largest oocyte in fully developed ovaries] 1.5 Vila-Gispert and Moreno-Amich, 2002
Gambusia affinis Mature oocytes were seen in follicles greater than 1.6 mm in diameter, and the number increased as the diameter became larger 1.6 Koya et al, 2000
Esox masquinongy 2.0-2.5 (mean =2.3) 2.25 Lebeau, 1991
Esox niger 2 2.0 Coffie, 1998
Esox niger About 2 2.0 Scott and Crossman, 1973
Esox niger 2 [Not specified but seems unswollen] 2.0 Mittelbach and Persson, 1998
Esox lucius 1.5-2.0 [Dry egg] 1.75 Hovarth et al, 1992
Esox lucius 2-2.5 [Not specified] 2.25 Spillmann, 1961
Esox lucius 2-2.5 [Ova or ferlilized egg before swelling] 2.25 Chauveheid and Billard, 1983
Esox lucius 2.3-2.4 2.35 Bruslé and Quignard, 2001
Esox lucius 2.3-2.4 [Before fertilization] 2.35 Toner and Lawler, 1969
Esox lucius 2.2-2.5 [Unfertilized egg] 2.35 Frost and Kipling, 1967
Esox lucius 2.5-3 2.75 Fishbase, 2006
Esox lucius 2.5-3 2.75 Scott and Crossman, 1973
Esox lucius 2.14-2.48 [Average diameter of the largest oocyte in fully developed ovaries] 2.31 Vila-Gispert and Moreno-Amich, 2002
Esox lucius 2.5-3.0 [Not specified, but seems unswollen] 2.75 Mittelbach and Persson, 1998
Esox lucius 2.8-3.0 [Irish pike] 2.9 Kennedy, 1969
Esox lucius 2.8 [Mean diameter of mature, fully yolked, ovarian oocyte] 2.8 Olden et al, 2006
Esox lucius The range in corrected egg diameter would be 2.14-3.13 in March, unfertilized egg 2.63 Treasurer, 1990
Lota lota 0.80 to 1.00-1.12 [Ooocytes prior to spawning] 1.06 Brylinska et al, 2002
Lota lota 0.96-1.14 1.05 Bruslé and Quignard, 2001
Lota lota Slightly above 1 1.0 Spillmann, 1961
Lota lota 1.0 1.0 Persat, 2001
Lota lota 0.5 before extrusion, but up to 1.25 and 1.77 0.5 Scott and Crossman, 1973
Lota lota Small: 0.95-1.15 1.05 Kujawa et al, 2002
Gasterosteus aculeatus 1.5-1.7 [Not precised] 1.6 Mellinger, 2002
Gasterosteus aculeatus 1.7-1.9 1.8 Internet, 2005
Gasterosteus aculeatus 1.5-1.9 1.7 Bruslé and Quignard, 2001
Gasterosteus aculeatus 1.8 1.8 Coad, 2005
Gasterosteus aculeatus 1.5 1.5 Crivelli, 2001
Gasterosteus aculeatus 1.1-1.6 [Newly laid eggs] 1.35 Fishbase, 2006
Gasterosteus aculeatus 1.5-1.7 1.6 Scott and Crossman, 1973
Gasterosteus aculeatus 1.31 ± 0.05 1.31 Wallace and Selman, 1979
Gasterosteus aculeatus 1.15-1.67 1.41 Poizat et al, 2002
Gasterosteus aculeatus 1.7 [Large mature oocytes, range 1.31-2.0 for other populations] 1.66 Copp et al, 2002
Gasterosteus aculeatus 1.3 1.3 Tyler and Sumpter, 1996
Gasterosteus aculeatus Ovulated oocytes reached a diameter of at least 1.4 mm (apart from the overripe ones) 1.4 Sokolowska and Sokolowska, 2006
Pungitius pungitius 1.2-1.5 1.35 Bruslé and Quignard, 2001
Pungitius pungitius 1-1.5 1.25 Fishbase, 2006
Pungitius pungitius Mean of 1.366, from 0.52 to 1.872 [Maturing eggs] 1.37 Sokolowska and Skora, 2001
Pungitius pungitius 1.7 [Large mature oocytes] 1.7 Copp et al, 2002
Pungitius pungitius 1.2 [Not specified] 1.2 Copp et al, 2002b
Pungitius pungitius Means or most common values and ranges in parentheses => 1.42 (1.18-1.55) in Alaskan Lake; 1.3 in Newfoundland; 1.76 (1.53-1.98) in Lake Superiour USA; (1.4-1.8) in Indiana Lake USA 1.36 Heins et al, 2003
Ambloplites rupestris 2.0-2.1 [Not specified] 2.05 Carrel et al, 2001
Ambloplites rupestris 1.7-1.9 [Not specified, seems to be unswollen] 1.8 Mittelbach and Persson, 1998
Ambloplites rupestris 2.1 [Mean diameter of mature, fully yolked, ovarian oocyte] 2.1 Olden et al, 2006
Lepomis gibbosus 0.8-1.2 1.0 Internet, 2005
Lepomis gibbosus 1.5 1.5 Spillmann, 1961
Lepomis gibbosus 1-1.5 1.25 Bruslé and Quignard, 2001
Lepomis gibbosus 0.9-1.2 [Not specified] 1.05 Carrel et al, 2001
Lepomis gibbosus About 1 1.0 Scott and Crossman, 1973
Lepomis gibbosus Mean 0.88 [0.5-1.27] 0.89 Copp et al, 2002
Lepomis gibbosus 0.8-1.8 [Vitellogenic egg] 1.3 Vila-Gispert and Moreno-Amich, 2000
Lepomis gibbosus 1.00-1.20 [Average diameter of the largest oocyte in fully developed ovaries] 1.1 Vila-Gispert and Moreno-Amich, 2002
Lepomis gibbosus 1.0 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.0 Olden et al, 2006
Lepomis gibbosus The mean diameter of ripe eggs in ovaries of females in Upper Beverley Lake was 0.529 mm, signigficantly larger that 0.477 in Lower beverley Lake 0.53 Deacon and Keast, 1987
Lepomis gibbosus Egg diameter in various studies: 1.06 [England, Cottesmore pond], 1.10 [Romania, Danube Delta], 0.76 [Spain, Banyoles Lake], 0.80 [Greece, Kerkini Lake], 0.79 [Brazil, Custodio's Dam], 1.00 [Canada, Lakes of east region], 0.80 [USA, Rhode Island ponds] 1.06 De Magalhaes and Ratton, 2005
Micropterus dolomieui 1.2-2.5 [Unfertlized egg] 1.85 Internet, 2005
Micropterus dolomieui 1.2-2.5 [Not specified] 1.85 Scott and Crossman, 1973
Micropterus dolomieui 1.8-2.2 [Not specified, but seems unswollen] 2.0 Mittelbach and Persson, 1998
Micropterus dolomieui 2.3 [Mean diameter of mature, fully yolked, ovarian oocyte] 2.3 Olden et al, 2006
Micropterus salmoides 1.4-1.8 1.6 Heidinger, 1976
Micropterus salmoides 1.5-1.7 1.6 Melinger, 2002
Micropterus salmoides 1.45-1.5 1.48 Spillmann, 1961
Micropterus salmoides 1.5-1.7 and 1.63-1.71 1.6 Internet, 2005
Micropterus salmoides 1.4-1.8 1.6 Bruslé and Quignard, 2001
Micropterus salmoides 1.3-1.8 1.55 Carrel and Schlumberger, 2001
Micropterus salmoides 1.30 [Average diameter of the largest oocyte in fully developed ovaries] 1.3 Vila-Gispert and Moreno-Amich, 2002
Micropterus salmoides 1.5-1.7 [Not specified, but seems unswollen] 1.6 Mittelbach and Persson, 1998
Micropterus salmoides 1.7 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.7 Olden et al, 2006
Dicentrarchus labrax 1.15 1.15 Zohar et al, 1984
Dicentrarchus labrax Mode 1.3, 1.1-1.51 [Not specified] 1.31 Fishbase, 2006
Dicentrarchus labrax 1.1 1.1 Tyler and Sumpter, 1996
Dicentrarchus labrax The postvitellogenic oocytes rapidly increasing volume by about 250% until they reach the hyaline stage 1.0-1.1 mm 1.05 Mayer et al, 1990
Dicentrarchus labrax On completion of maturation (ripe egg stage), prior to ovulation, the oocyte (now an egg) mesures about 1.2 mm 1.2 Mayer et al, 1988
Dicentrarchus labrax Mean of 1.15 1.15 Cerda et al, 1994
Morone americana 0.79 [Before fertilization], range of 0.55-0.70 for egg removed from ovaries 0.62 Scott and Crossman, 1973
Morone americana 0.6-0.8 [Not specied, but seems unswollen] 0.7 Mittelbach and Persson, 1998
Morone americana 0.7-0.89 [Unfertilized egg] 0.79 Stanley and Danie, 1983
Morone americana Mature ova : 0.75-0.80 0.78 Mansuetti, 1961
Morone chrysops 0.81 0.81 Internet, 2005
Morone chrysops 0.8 0.8 Scott and Crossman, 1973
Morone chrysops 0.699-1.000 [Ova immediatly after spawning] 0.85 Ruelle, 1977
Morone chrysops 0.61-0.68 [Diameter at ovulation] 0.65 Kohler, 1997
Morone chrysops 0.7-1.2 [Not specied, but seems unswollen] 0.95 Mittelbach and Persson, 1998
Morone chrysops 0.8 0.8 Anonymous, 2006 Chapter 3
Morone chrysops 0.8 [Mean diameter of mature, fully yolked, ovarian oocyte] 0.8 Olden et al, 2006
Morone saxatilis 1.0-1.35 [Before extrusion] 1.18 Scott and Crossman, 1973
Morone saxatilis 0.7 [Final egg size] 0.7 Tyler and Sumpter, 1996
Morone saxatilis 0.8 [Mean diameter of mature, fully yolked, ovarian oocyte] 0.8 Olden et al, 2006
Morone saxatilis Fully mature and ovulated oocytes have a diameter of approximatively 1-1.2 mm before water hardening 1.1 Woods III and Sullivan, 1993
Morone saxatilis 0.911 ± 0.177 in May 0.91 Blythe et al, 1994
Morone saxatilis Oocyte diameter reached their maximum in April: 0.84 ± 0.014 0.84 Vuthiphandchai et al, 2002
Morone saxatilis Mean ooocyte diameter from all females at the second sampling (20 March) was 0.838 +/- 0.018 mm. When oocytes completed FOM and were ovulated (1.131 +/- 0.020 mm in diameter) 0.84 Mylonas et al, 1997
Gymnocephalus cernua 0.34-1.3 (first batch : 0.90-1.21 and second batch 0.36-0.47) 0.82 Ogle, 1998
Gymnocephalus cernua 1 1.0 Bruslé and Quignard, 2001
Gymnocephalus cernua 0.34-1.33 [Eggs from first batch are larger 0.90-1.21, and second batch are smaller 0.36-0.47 mm] 0.41 Crosier et al, 2005
Gymnocephalus cernua 1 1.0 Spillmann, 1961
Gymnocephalus cernua Average is 1 1.0 Craig, 2000
Gymnocephalus cernua 0.9-1.2 1.05 Crivelli and Rosecchi, 2001
Gymnocephalus cernua 0.5-1 0.75 Fishbase, 2006
Gymnocephalus cernua 0.86-1.0 [End of hydratation process, unfertilized egg] 0.93 Bonislawska et al, 2004
Gymnocephalus cernua The maximum diameter reaching 0.98 (in ova). Other described as 1.03 (range0.90-1.21) 1.05 Neja, 1988
Gymnocephalus cernua Immediatly before spawning the maturing oocyte diameters varied between 0.650 and 0.850 mm 0.85 Luksiene et al, 2000
Perca flavescens 1.62-2.09, mean 1.76 [Fertilized eggs before water-hardening] 1.85 Mansueti, 1964
Perca flavescens 1.6-2.1 1.85 Heidinger and Kayes, 1986
Perca flavescens About 1.7 1.7 Malservisi and Magnin, 1968
Perca flavescens 1.0-1.9 [Not specified, but seems unswollen] 1.45 Mittelbach and Persson, 1998
Perca fluviatilis 1.0-2.0 [Fertlized egg before water hardening] 1.5 Craig, 2000
Perca fluviatilis 1.5-2.0 [Not precised] 1.75 Spillmann, 1961
Perca fluviatilis 1.6-2.1 [Fertilized egg before hardening] 1.85 Thorpe, 1977
Perca fluviatilis 2.09-2.16 and sometimes 2.3-2.9 2.12 Bruslé and Quignard, 2001
Perca fluviatilis 0.94-1.62 1.28 Treasurer, 1981
Perca fluviatilis 1.0-2.0 1.5 Goubier, 1990
Perca fluviatilis 1.5-2.5 2.0 Fishbase, 2006
Perca fluviatilis 2.30 [Average diameter of the largest oocyte in fully developed ovaries] 2.3 Vila-Gispert and Moreno-Amich, 2002
Perca fluviatilis 1.0-2.1 [Not specified, but seems unswollen] 1.55 Mittelbach and Persson, 1998
Sander lucioperca 1.0-1.5 [Not specfied] 1.25 Craig, 2000
Sander lucioperca 0.6-0.8 [Dry] 0.7 Hovarth et al, 1992
Sander lucioperca 1.5 [Not specified] 1.5 Spillmann, 1961
Sander lucioperca 0.7-0.85 [Unswollen eggs] 0.77 Lappaleinen et al, 2003
Sander lucioperca 1.5 1.5 Bruslé and Quignard, 2001
Sander lucioperca 1.0-1.5 [Not specfied] 1.25 Olivier and Schlumberger, 2001
Sander lucioperca 1-1.5 1.25 Fishbase, 2006
Sander lucioperca Mean 0.88, range 0.68-1.04 [Ovocyte diameter] 0.86 Poulet, 2004
Sander lucioperca 0.85 [Average diameter of the largest oocyte in fully developed ovaries] 0.85 Vila-Gispert and Moreno-Amich, 2002
Sander lucioperca 0.8-1.5 [Not specified, but seems unswollen] 1.15 Mittelbach and Persson, 1998
Sander lucioperca 0.7-0.85 [Before fertilization] 0.77 Lehtonen et al, 1996
Sander lucioperca 0.8 [Mature oocyte] 0.8 Schlumberger and Proteau, 1993
Sander vitreus 1.5-2.0 [May vary from 1.37-2.12] 1.75 Colby et al, 1979
Sander vitreus 1.4-2.1 [Not specified, seems to be unswollen] 1.75 Mittelbach and Persson, 1998
Sander vitreus 1.4-2.1 1.75 Anonymous, 2006 Chapter 3
Sander vitreus 1.9 [Mean diameter of mature, fully yolked, ovarian oocyte] 1.9 Olden et al, 2006
Sander vitreus Range from 1.37 to 2.12 [Not specified] 1.37 Johnston, 1997
Sander vitreus The mean diameter of ripe walleyes was 1.72 (range 1.40-2.04), earlier description was 2.12 [Not specified] 1.72 Wolfert, 1969
Coregonus lavaretus Diameter of eggs from wild spawners range for precocious 2.0-2.6 and for delayed : 1.9-2.1 2.3 Rojas Beltran et al, 1992
Coregonus albula 2-3 [not specified] 2.5 Scott and Crossman, 1973
Coregonus albula Mean 1.63, range 1.47-1.80 [Unswollen] 1.64 Wilkonska et al, 1993
Coregonus albula Means of diameter of non-swollen eggs ranged from 1.54 to 1.71 for 10 different populations and 2.29 for a population in lake Kajoonjärvi 1.54 Kamler et al, 1982
Coregonus clupeaformis 2.3 [After extrusion] 2.3 Scott and Crossman, 1973
Coregonus clupeaformis Initially 2.3 in diameter 2.3 Anonymous, 2006 Chapter 3
Coregonus clupeaformis 2-2.7 [Oocyte ?] 2.35 Mack and Billard, 1984
Hucho hucho 3.6-6.0 4.8 Barton, 1996
Hucho hucho 4-5.5 4.75 Bruslé and Quignard, 2001
Hucho hucho 3.48-7.64 [Not specified] 5.56 Bartel et al, 1999
Hucho hucho 5 5.0 Fishbase, 2006
Hucho hucho 4.5-6 [Not specified] 5.25 Prawochensky and Kolder, 1968
Hucho hucho Their equatorial diameter was on average 3.95. In fish farm, found mean size of unswollen eggs 4.4-5.35 mm 4.88 Penaz and Prihoda, 1981
Hucho hucho Range: 4.61-6.69, mean 5.38 5.65 Purtscher and Humpesch, 2006
Oncorhynchus gorbuscha 6 6.0 Mellinger, 2002
Oncorhynchus gorbuscha 6 6.0 Barton, 1996
Oncorhynchus gorbuscha 5.40-6.07 [n=232] 5.74 Kaev and Kaeva, 1986
Oncorhynchus gorbuscha 6 6.0 Scott and Crossman, 1973
Oncorhynchus gorbuscha 6 6.0 Fishbase, 2006
Oncorhynchus keta 5.1-5.9 5.5 Barton, 1996
Oncorhynchus keta 5.1-5.9 [Diameter in the ovary] 5.5 Scott and Crossman, 1973
Oncorhynchus kisutch 4.5-6 5.25 Mellinger, 2002
Oncorhynchus kisutch 4.5-6.9 5.7 Barton, 1996
Oncorhynchus kisutch 4.5-6 [Bigger than for most other Pacific salmon] 5.25 Groot, 1996
Oncorhynchus kisutch 5.60-7.0 [Natural range, mean = 6.08-6.87.] 6.3 Zorbidi, 1988
Oncorhynchus kisutch 4.5-6.0 5.25 Scott and Crossman, 1973
Oncorhynchus kisutch 4.5-6 5.25 Fishbase, 2006
Oncorhynchus kisutch 5.186 ± 0.263 for oocytes at the final maturation stage [For broodstock population cultured in a fish farm in Southern Chile] 5.19 Estay et all., 1998
Oncorhynchus kisutch Eggs in ovarian sac: means in different populations range from 5.1±0.2 to 7.2±0.2 other studies: 6.1 to 7.4] 5.1 Stauffer, 1976
Oncorhynchus mykiss 4.6-6.2 [3-5] 5.4 Internet, 2005
Oncorhynchus mykiss 3-5 4.0 Mellinger, 2002
Oncorhynchus mykiss 3-5 4.0 Barton, 1996
Oncorhynchus mykiss 3.5-5 4.25 Bruslé and Quignard, 2001
Oncorhynchus mykiss 4.7 ± 0.2 4.7 Whitehead et al, 1978
Oncorhynchus mykiss 3-5 4.0 Fishbase, 2006
Oncorhynchus mykiss 4.5 4.5 Tyler and Sumpter, 1996
Oncorhynchus mykiss 5.0 [Final egg diameter] 5.0 Tyler and Sumpter, 1996
Oncorhynchus mykiss 3-5 4.0 Scott and Crossman, 1973
Oncorhynchus mykiss 4.0 [Mean diameter of mature, fully yolked, ovarian oocyte] 4.0 Olden et al, 2006
Oncorhynchus mykiss 5.0 ± 0.2 [For controls] 5.0 Bromage et al, 1984
Oncorhynchus mykiss Between 4.3 and 5.0 for different batches of fish under different conditions 4.3 Davies and Bromage, 2002
Oncorhynchus mykiss Different means range from 4.09 to 4.35 [Ova diameter] 4.09 Springate et al, 1984
Oncorhynchus mykiss 5.4 at ovualtion 5.4 Tyler et al, 1990
Oncorhynchus mykiss Range: 4.53-5.90, mean 5.15 5.21 Purtscher and Humpesch, 2006
Oncorhynchus nerka 4.5-5 4.75 Mellinger, 2002
Oncorhynchus nerka 4.5-5.0 4.75 Barton, 1996
Oncorhynchus nerka 5.3-6.6 5.95 Groot, 1996
Oncorhynchus nerka 4.5-5.0 4.75 Scott and Crossman, 1973
Oncorhynchus nerka 4.5-5 4.75 Fishbase, 2006
Oncorhynchus nerka 4.8 [Mean diameter of mature, fully yolked, ovarian oocyte] 4.8 Olden et al, 2006
Oncorhynchus tshawytscha 6.0-7.0 6.5 Mellinger, 2005
Oncorhynchus tshawytscha 6.0-7.0 6.5 Barton, 1996
Oncorhynchus tshawytscha 6.0-8.5 7.25 Internet, 2005
Oncorhynchus tshawytscha 6.3-7.9 7.1 Groot, 1996
Oncorhynchus tshawytscha 6.0-7.0 6.5 Scott and Crossman, 1973
Oncorhynchus tshawytscha 6.0-7.0 6.5 Fishbase, 2006
Oncorhynchus tshawytscha Up to 10 10.0 Tyler and Sumpter, 1996
Salmo salar 5-7; 6.17 ±0.35 6.17 Mellinger, 2002
Salmo salar 5-7 6.0 Barton, 1996
Salmo salar 5-7 6.0 Groot, 1996
Salmo salar 6 6.0 Bruslé and Quignard, 2001
Salmo salar 5-7 6.0 Porcher and Baglinière, 2001
Salmo salar 5-7 [After extrusion] 6.0 Scott and Crossman, 1973
Salmo salar 5-7 [Not specified] 6.0 Bensettiti and Gaudillat, 2002
Salmo salar Mean oocyte diameter 4-6 weeks before ovulation 5.4 mm 5.0 King and Pankhurst, 2003
Salmo salar The mean egg diameter of ova from fish from the 14 and 18°C temperature treatments were not significantly diffrent (c. 5.7 mm) 5.7 King et al, 2003
Salmo trutta fario 4-5 4.5 Mellinger, 2002
Salmo trutta fario 4-5 4.5 Barton, 1996
Salmo trutta fario 4-5 4.5 Bruslé and Quignard, 2001
Salmo trutta fario 5.06 ± 0.18 [Ovocytes] 5.06 Billard and Fremont, 1980
Salmo trutta fario 3-5 [Not specified] 4.0 Ombredane et al, 2001
Salmo trutta fario 4-5 4.5 Scott and Crossman, 1973
Salmo trutta fario 4.9-5.6 [Not specified, seems to be unswollen] 5.25 Mittelbach and Persson, 1998
Salmo trutta fario 4.5 [Mean diameter of mature, fully yolked, ovarian oocyte] 4.5 Olden et al, 2006
Salmo trutta fario Average egg diameter among 70 females of age groups I-IV ranged from 3.2 to 4.8 mm 4.8 Taure, 1976
Salmo trutta fario Range: 3.64-6.94, mean 5.41 5.29 Purtscher and Humpesch, 2006
Salvelinus alpinus 4.7 ± 0,6 (mean diameter) 4.7 Jamet, 1995
Salvelinus alpinus 3-5 4.0 Guillard et al, 1992
Salvelinus alpinus 3.2-5 4.1 Groot, 1996
Salvelinus alpinus 4-4.5 4.25 Spillmann, 1961
Salvelinus alpinus 4-5.5 or 3.8-5.8 [Populations of Norway] 4.75 Bruslé and Quignard, 2001
Salvelinus alpinus 4-5 [Not specified] 4.5 Gerdeaux, 2001
Salvelinus alpinus 3.5-5.5 4.5 Fishbase, 2006
Salvelinus alpinus 4-5 [When deposited] 4.5 Scott and Crossman, 1973
Salvelinus alpinus 3.9-4.3 [Not specified, seems to be unswollen] 4.1 Mittelbach and Persson, 1998
Salvelinus alpinus 3.5-5.0 4.25 Beddow et al, 1998
Salvelinus alpinus The diameter of the large eggs exceeded 4 mm [In ova] 4.0 Grainger, 1953
Salvelinus alpinus The mean ovum diameter from 'small charr' females was 3.5 ± 0.2 and from 'large charr' 3.6 ± 0.2 3.5 Sparholt, 1985
Salvelinus alpinus Range: 4.28-5.27, mean 4.80 4.78 Purtscher and Humpesch, 2006
Salvelinus alpinus Egg diameter in females held in different environmental conditions range from 4 to 5 mm 5.0 Atse et al, 2002
Salvelinus alpinus Charr eggs are usually 4-5 mm in diameter 4.5 Jobling et al,1998
Salvelinus alpinus Mean diameters for the whole sample and for an individual ranged within 1.167-5.497 mm and 1.36-4.48 mm, respectively 3.33 Winnicki and Stankowska-Radziun, 1993
Salvelinus fontinalis 3.5-5 4.25 Groot, 1996
Salvelinus fontinalis 3-5 4.0 Bruslé and Quignard, 2001
Salvelinus fontinalis 3.5-4.0 [The size of the mature ova] 3.75 Henderson, 1963
Salvelinus fontinalis 4 [Ovule] 4.0 Rivier, 2001
Salvelinus fontinalis 3.5-5 4.25 Fishbase, 2006
Salvelinus fontinalis 3.5-5 4.25 Scott and Crossman, 1973
Salvelinus fontinalis 4.8-4.9 4.85 Fraser, 1985
Salvelinus fontinalis 3.5-5.0 [Not specified, seems to be unswollen] 4.25 Mittelbach and Persson, 1998
Salvelinus fontinalis 5 [Not specified] 5.0 Coad, 2006
Salvelinus fontinalis Mean 4.58 ± 0.254, range 4.1-4.9 4.58 Bascinar and Okumus, 2004
Salvelinus fontinalis 4.3 [Mean diameter of mature, fully yolked, ovarian oocyte] 4.3 Olden et al, 2006
Salvelinus fontinalis The common size of mature eggs, ready to be shed, varies from 4.0 to 4.6 mm 4.6 Vladykov, 1956
Salvelinus fontinalis The mean diameter of ripe ova was 4.05 4.05 Wydoski and Cooper, 1966
Salvelinus fontinalis Range: 3.59-5.46, mean 4.67 4.53 Purtscher and Humpesch, 2006
Salvelinus fontinalis Diameter of oocytes in September, mean of 3.2 for aicd lakes and 2.9 for non-acid lakes 3.2 St-Pierre and Moreau, 1986
Salvelinus namaycush 4.5-6 5.25 Bruslé and Quignard, 2001
Salvelinus namaycush 5-6 [Not specified] 5.5 Perrin, 2001
Salvelinus namaycush 5-6 5.5 Fishbase, 2006
Salvelinus namaycush 5-6 [In ovary, at maturity] 5.5 Scott and Crossman, 1973
Salvelinus namaycush 5-6 [Not specified, but seems unswollen] 5.5 Mittelbach and Persson, 1998
Salvelinus namaycush 5.5 [Mean diameter of mature, fully yolked, ovarian oocyte] 5.5 Olden et al, 2006
Stenodus leucichthys 2.2-2.4 2.3 Belyaeva, 2005
Stenodus leucichthys Average 2.5 2.5 Fishbase, 2006
Stenodus leucichthys Up to 2.4 [Not specified] 2.4 Coad, 2006
Thymallus thymallus Average 2.5, range 2.0-3.0 [Unfertilized eggs] 2.5 Zaytsev, 1986
Thymallus thymallus Mean 2.67, up to 2.9 [Egg immediately before spawning] 2.67 Witkowski et al, 1989
Thymallus thymallus 2.5-3.5 3.0 Northcote, 1995
Thymallus thymallus As low as 2.0 up to 3.5 even 4.0 in Europe [Not specified] 2.0 Northcote, 1993
Thymallus thymallus The mean size of non-inseminated eggs was 2.49 mm 2.49 Penaz, 1975
Thymallus thymallus Range: 3.02-4.64, mean 3.89 3.83 Purtscher and Humpesch, 2006
Thymallus thymallus 2 mm (1.8 mm at Nant de Sion) 2.0 Vivier, 1958
Thymallus thymallus Dimètre des ovules des de 3 mm 3.0 Carmie et al, 1985
Thymallus arcticus 2.5 2.5 Fishbase, 2006
Thymallus arcticus Egg size in ovary is about 2.5 2.5 Scott and Crossman, 1973
Thymallus arcticus 2-3 [Prior to fertilization] 2.5 Northcote, 1995
Thymallus arcticus 2-3 [Prior to fertilization] 2.5 Northcote, 1993
Thymallus arcticus 3.0 [Mean diameter of mature, fully yolked, ovarian oocyte] 3.0 Olden et al, 2006
Thymallus arcticus The diameter of fresh eggs measured 2.6 mm [Also found 2.5 mm before the eggs were water-hardened] 2.6 Bishop, 1971
Cottus gobio 2.5 2.5 Spillmann, 1961
Cottus gobio 2.5 2.5 Bruslé and Quignard, 2001
Cottus gobio 2.5 2.5 Persat, 2001
Cottus gobio 2-2.5 2.25 Fishbase, 2006
Cottus gobio > 1.8 [The oocytes of the their class, i.e. ripe oocytes ready to be spawned] 1.8 Marconato and Bisazza, 1988
Cottus gobio Means between age range from 1.7-2.2, total range from 1.31 to 2.39 [egg-diameter of ripening female] 1.95 Abdoli et al, 2005
Cottus gobio 2.5 2.5 Bensettiti and Gaudillat, 2002
Cottus gobio Means range from 1.79 to 1.94 1.79 Fox, 1978
Ameiurus nebulosus 3 3.0 Mellinger, 2002
Ameiurus nebulosus 3.0-3.4 for unfertilized egg 3.2 Internet, 2005
Ameiurus nebulosus About 3 3.0 Scott and Crossman, 1973
Ameiurus nebulosus 3.0 [Mean diameter of mature, fully yolked, ovarian oocyte] 3.0 Olden et al, 2006
Ameiurus nebulosus About 3 mm in diameter 3.0 Internet, 2001
Ictalurus punctatus 3.5-4 3.75 Mellinger, 2002
Ictalurus punctatus 3.3-4 3.65 Internet, 2005
Ictalurus punctatus 3.5-4.0 [Before they are laid] 3.75 Scott and Crossman, 1973
Ictalurus punctatus 3.5-4.0 [Not specified, but seems unswollen] 3.75 Mittelbach and Persson, 1998
Ictalurus punctatus 3-4 3.5 Anonymous, 2006 Chapter 3
Ictalurus punctatus 3.8 [Mean diameter of mature, fully yolked, ovarian oocyte] 3.8 Olden et al, 2006
Ictalurus punctatus The diameter of the eggs fixed just after spawning, with the chorion removed, averaged 3.2 mm 3.2 Riggs, 1961
Ictalurus punctatus 3 [Ovocyte] 3.0 Legendre et al, 1997
Ictalurus punctatus Mean of 2.356 ± 0.049 [Oocyte diameter in May] 2.36 Pacoli et al, 1990
Ictalurus punctatus Egg diameter (frozen) => 2.2 ± 01. (4FO control), 2.4 ± 0.2 (4PF), 2.2 ± 0.1 (10FO), 2.3 ± 0.1 (10PF) 2.2 Sink and Lochman, 2008
Silurus glanis 1.65-2.3 [Diameter of ovulated egg cells] 1.97 Zholdasova and Guseva, 1987
Silurus glanis Oocytes attain final size of 2-3 2.5 Wisniewolski, 1988
Silurus glanis 1.5-2 [Dry] 1.75 Hovarth et al, 1992
Silurus glanis 2.5-2.9 [Ovocyte] 2.7 Legendre et al, 1997
Silurus glanis Mean size of oocytes range from 1.842 [Range 1.00-2.67] for female of 4 years old to 2.323 [Range 1.45-3.73, for females of age 10] 1.83 Alp et al, 2004
Osmerus eperlanus Average 0.70-0.80, range 0.55-1.06 0.75 Belyanina, 1969
Osmerus eperlanus Mode 0.95, range 0.6-1.3 [Not specified] 0.95 Fishbase, 2006
Osmerus eperlanus Diameter of the mature oocytes is 0.7-0.8 mm 0.75 Gorodilov and Melnikova, 2006
Osmerus eperlanus The egg, which has a diameter ranging from 0.75 to 0.90 mm 0.9 Sepulveda, 1994
Thymallus arcticus 2.35 2.35 Hutchings et al, 1985
Acipenser brevirostrum 3.50 3.5 Kynard, 1997
Acipenser brevirostrum 3.00-3.20 3.1 Dadswell et al, 1984
Dorosoma petenense 0.90-1.10 1.0 Shelton and Stephens, 1980
Labidesthes vanhyningi 1.08-1.32 1.2 Piteo et al, 2017
Labidesthes vanhyningi 0.61-1.33 0.97 Piteo et al, 2017
Etheostoma caeruleum 0.98-1.43 1.21 Heins et al, 1996
Cottus bairdi 1.30-2.20 1.75 Bailey, 1952
Cottus bairdi 2.20 2.2 Simon and Brown, 1943
Percina caprodes 1.12 1.12 Cooper, 1978
Percina caprodes 1.20 1.2 Turner, 2001
Percina caprodes 1.20 1.2 Paine, 1984
Percina caprodes 1.30 1.3 Scott and Crossman, 1998
Catostomus commersonii 2.50-2.82 2.66 Fish, 1932
Aplodinotus grunniens 1.03 1.03 Daiber, 1950
Aplodinotus grunniens 0.74-1.01 0.88 Bur, 1984
Aplodinotus grunniens 0.49-0.60 0.54 Bur, 1984
Aplodinotus grunniens 0.20-0.31 0.26 Bur, 1984
Aplodinotus grunniens 0.92 0.92 Hernandez-Gomez et al, 2013
Aplodinotus grunniens 0.96-1.093 1.03 Palmer et al, 1995
Hiodon alosoides 2.00-2.40 2.2 Wallus, 1989
Hiodon alosoides 2.10-2.50 2.3 Wallus, 1989
Ameiurus melas <0.20 0.2 Novomeska and Kovac, 2009
Ameiurus melas 0.68-0.77 0.73 Novomeska and Kovac, 2009
Ameiurus melas 1.00 1.0 Novomeska and Kovac, 2009
Pomoxis nigromaculatus 0.848-1.012 0.93 Merriner, 1971
Lepomis macrochirus 0.80 0.8 Banner and Hyatt, 2011
Pomoxis annularis 0.65 0.65 Neumann and Murphy, 1992
Gasterosteus aculeatus 1.64-1.66 1.65 Belles-Isles and FitzGerald, 1992
Gasterosteus aculeatus 1.20-1.60 1.4 Lam et al, 1978
Gasterosteus aculeatus 1.20-1.70 1.45 Swarup, 1958
Gasterosteus aculeatus 1.20-1.60 1.4 Vrat, 1949
Sander lucioperca 1.00-1.30 1.15 Demska-Zakes et al, 2005
Sander lucioperca 0.50-1.40 0.95 Lappalainen et al, 2003
Gymnocephalus cernua 0.90-1.20 1.05 French and Edsall, 1992
Fundulus heteroclitus 1.60-2.40 2.0 Marteinsdottir and Able, 1988
Carassius gibelio 0.90-1.51 1.21 Kiryanka and Ekmekci, 2013
Carassius gibelio 0.35-2.03 1.19 Leonardos et al, 2008
Salvelinus fontinalis 3.80-4.80 4.3 Vladykov, 1956
Ameiurus nebulosus 2.40-2.59 2.5 Farwell et al, 2013
Ameiurus nebulosus 2.51-2.60 2.55 Farwell et al, 2013
Ameiurus nebulosus 2.41-2.57 2.49 Farwell et al, 2013
Ameiurus nebulosus 2.41-2.56 2.49 Farwell et al, 2013
Ameiurus nebulosus 2.34-2.57 2.46 Farwell et al, 2013
Ameiurus nebulosus 2.33-2.50 2.42 Farwell et al, 2013
Ameiurus nebulosus 2.38-2.46 2.42 Farwell et al, 2013
Umbra pygmaea 1.29-1.62 1.46 Panek and Weis, 2012
Umbra pygmaea 1.00-1.62 1.31 Panek and Weis, 2012
Noturus flavus 1.47-2.49 1.98 Tzilkowski and Stauffer, 2004
Notropis atherinoides 0.85 0.85 Coburn, 1982
Notropis atherinoides 0.80-0.90 0.85 Beck, 1983 (cited in Coburn, 1986)
Cycleptus elongatus 2.20 2.2 Moss et al, 1983
Cycleptus elongatus 2.80 2.8 Semmens, 1985
Cycleptus elongatus 1.00 1.0 Rupprecht and Jahn, 1980
Ictiobus cyprinellus 1.40 1.4 Johnson, 1963
Carpiodes carpio 1.10-1.25 1.18 Behmer, 1964
Carpiodes carpio 2.90-3.40 3.15 Buchholz, 1957
Carpiodes carpio 5.40-5.90 5.65 Buchholz, 1957
Catostomus tahoensis 1.50-2.00 1.75 Kennedy and Kucera, 1978
Catostomus tahoensis 1.90 1.9 Willrud, 1966 (Kennedy and Kucera, 1978)
Catostomus ardens 2.05-2.25 2.15 Andreasen and Barnes, 1975
Catostomus discobolus 2.05-2.26 2.15 Andreasen and Barnes, 1975
Catostomus discobolus 1.55-2.25 1.9 McAda and Wydoski, 1983
Catostomus discobolus 1.30 1.3 Smith, 1966
Catostomus latipinnis 2.39 2.39 McAda and Wydoski, 1985
Chasmistes cujus 2.00 2.0 Sigler et al, 1985
Chasmistes cujus 3.00 3.0 Sigler et al, 1985
Catostomus platyrhynchus 1.47-2.20 1.83 Hauser, 1968
Catostomus platyrhynchus 1.77 1.77 Wydoski and Wydoski, 2002
Catostomus columbianus 2.80 2.8 Smith, 1966
Catostomus columbianus 2.10-3.00 2.55 Dauble, 1980
Catostomus plebeius 1.50 1.5 Smith, 1966
Catostomus santaanae 1.50 1.5 Smith, 1966
Catostomus santaanae 2.20 2.2 Greenfield et al, 1970
Catostomus clarkii 3.10-3.20 3.15 Bestgen, 1989
Xyrauchen texanus 2.50-2.80 2.65 Bestgen, 1989
Catostomus insignis 3.00-3.50 3.25 Bestgen, 1989
Catostomus catostomus 3.00 3.0 Harris, 1962
Catostomus macrocheilus 2.70 2.7 Dauble, 1986
Thoburnia atripinnis 1.70-2.50 2.1 Timmons et al, 1983
Thoburnia rhothoeca 2.02 2.02 Tarasidis and Powers, 2014
Salvelinus confluentus 5.00-6.20 5.6 McPhail and Baxter, 1996
Noturus gyrinus 1.00-2.00 1.5 Simon and Wallus, 2004
Noturus insignis 0.90-2.00 1.45 Simon and Wallus, 2004
Noturus insignis 4.00 4.0 Simon and Wallus, 2004
Noturus miurus 1.70-2.20 1.95 Simon and Wallus, 2004
Noturus albater 0.30-0.70 0.5 Mayden et al, 1980
Noturus albater 1.20-1.60 1.4 Mayden et al, 1980
Noturus albater 2.10-2.30 2.2 Mayden et al, 1980
Noturus gilberti 1.50-2.40 1.95 Mayden and Walsh, 1984
Noturus gilberti 3.00 3.0 Simonson, 1987
Noturus exilis 2.94 2.94 Vives, 1987
Noturus exilis 2.48 2.48 Vives, 1987
Noturus exilis 2.83 2.83 Vives, 1987
Noturus elegans 1.40-2.20 1.8 Simon and Wallus, 2004
Noturus hildebrandi 1.80-2.80 2.3 Mayden and Walsh, 1984
Noturus hildebrandi 2.26 2.26 Mayden and Walsh, 1984
Noturus hildebrandi 0.76-2.25 1.5 Baker and Heins, 1994
Noturus hildebrandi 1.64 1.64 Baker and Heins, 1994
Noturus hildebrandi 2.25-2.58 2.42 Baker and Heins, 1994
Noturus hildebrandi 2.41 2.41 Baker and Heins, 1994
Noturus miurus 3.50-3.80 3.65 Burr and Mayden, 1982
Noturus miurus 3.20 3.2 Burr and Mayden, 1982
Noturus exilis 1.50-3.40 2.45 Simon and Wallus, 2004
Noturus nocturnus 1.80-2.30 2.05 Burr and Mayden, 1982 (cited in Baker and Heins, 1994)
Noturus nocturnus 2.00 2.0 Burr and Mayden, 1982 (cited in Baker and Heins, 1994)
Noturus nocturnus 2.00-2.70 2.35 Simon and Wallus, 2004
Noturus leptacanthus 2.90-4.30 3.6 Clark, 1978 (cited in Baker and Heins, 1994)
Noturus leptacanthus 1.90-2.60 2.25 Mayden and Walsh, 1984 (cited in Baker and Heins, 1994)
Noturus gyrinus 1.85-2.06 1.96 Whiteside and Burr, 1986
Noturus gyrinus 1.95 1.95 Whiteside and Burr, 1986
Noturus gyrinus 1.10-2.41 1.76 Whiteside and Burr, 1986
Noturus gyrinus 1.93 1.93 Whiteside and Burr, 1986
Noturus gyrinus 2.25 2.25 Whiteside and Burr, 1986
Noturus gyrinus 2.11-2.39 2.25 Whiteside and Burr, 1986
Noturus eleutherus 1.50-2.30 1.9 Simon and Wallus, 2004
Noturus flavipinnis 2.5-3.3 2.9 Simon and Wallus, 2004
Noturus phaeus 2.10-2.80 2.45 Simon and Wallus, 2004
Acipenser transmontanus 3.50-4.00 3.75 Cherr and Clark, 1982
Acipenser transmontanus 3.80-4.00 3.9 Doroshov et al, 1983
Acipenser transmontanus 3.50-4.00 3.75 Cherr and Clark, 1985
Acipenser fulvescens 2.70-3.50 3.1 Scott and Crossman, 1998
Acipenser fulvescens 2.74 2.74 Bruch et al, 2006
Osmerus mordax 0.80-0.90 0.85 Cooper, 1978
Etheostoma bellator 0.99 0.99 Khudamrongsawat, 2007
Coregonus nasus 2.30 2.3 Scott and Crossman, 1998
Lepisosteus platostomus 2.50 2.5 Vokoun, 2000
Lepisosteus platyrhincus 2.20-2.90 2.55 Orlando, 2007
Fundulus kansae 2.065 2.06 Minckley and Harold, 1969
Fundulus kansae 1.60 1.6 Wilson and Hubbs, 1972
Hypomesus olidus 0.40 0.4 DeGraff, 1986
Hypomesus olidus 0.60-0.70 0.65 Yamada, 1963
Fundulus grandis 1.94-1.98 1.96 Hsiao and Meier, 1988
Fundulus grandis 1.80-2.20 2.0 Coulon et al, 2012
Fundulus grandis 2.00 2.0 Greeley and MacGregor, 1983
Etheostoma raneyi 1.05 1.05 Johnston and Haag, 1997
Fundulus notatus 1.55-1.60 1.58 Vigueira et. al., 2008
Coregonus huntsmani 2.70 2.7 Hasselman et al, 2007
Erimyzon sucetta 2.00 2.0 Fuiman, 1979
Etheostoma blennioides 1.85 1.85 Winn, 1958
Moxostoma cervinum 0.60-1.54 1.07 Thompson et al, 2015
Etheostoma chermocki 0.85-1.15 1.0 Khudamrongsawat and Kuhajda, 2011
Ichthyomyzon unicuspis 0.95 mm (0.91-0.99) 0.95 Schuldt et al, 1987
Etheostoma grahami 1.66-1.88 1.77 Aguilera et al, 1999
Ichthyomyzon unicuspis 0.45-0.85 0.65 Vladykov, 1951
Ichthyomyzon fossor 0.95-1.05 1.0 Vladykov, 1951
Petromyzon marinus 0.75-1.50 1.12 Vladykov, 1951
Petromyzon marinus 0.80-0.95 0.88 Vladykov, 1951
Petromyzon marinus 0.90-1.50 1.2 Vladykov, 1951
Etheostoma pallididorsum 1.28-1.37 1.33 Heins et al, 1992 (cited in Johnston, 1995)
Etheostoma whipplei 1.17-1.27 1.22 Heins and Machado, 1993
Etheostoma zonale 1.34-1.49 1.42 Guill and Heins, 1996
Moxostoma pappillosum 11.90-12.10 12.0 Weyers et al, 2003
Lampetra hubbsi 0.96-1.10 1.03 Lapierre and Renaud, 2015
Percina notogramma 2.00 2.0 Winn, 1958
Etheostoma spectabile 1.24 1.24 Winn, 1958
Etheostoma microperca 1.00 1.0 Winn, 1958
Moxostoma valenciennesi 3.00-3.50 3.25 Bunt and Cooke, 2004
Etheostoma jimmycarter 1.70 1.7 Winn, 1958
Percina phoxocephala 1.30 1.3 Page and Smith, 1971
Coregonus hoyi 2.05 2.05 Emery, 1978
Acipenser sturio The pigmented ovarian follicles varied greatly from 2.4 to 3.4 mm in diameter without any relationship with the weight of the females 3.4 Williot et al, 2002
Noturus insignis 3.5 3.5 Stoekel and Neves, 2001
Leuciscus idus 0.34/0.76 0.34 Targonska et al, 2012
Acipenser ruthenus 3.07-0.14 mm 1.6 Lenhardt et al, 2004
Atractosteus spatula 3-5mm 4.0 Mendoza Alfaro et al, 2008
Atractosteus spatula 6.6 - 8.8 7.7 Aguilera et al, 2002
Atractosteus spatula 4.43 mm 4.43 Castillo et al, 2015
Acipenser transmontanus 3.5-4 3.75 Cherr et al (, 1982)
Aplodinotus grunniens 1.0-1.5 1.25 HERNANDEZ-GOMEZ et al (, 2017)
Leuciscus aspius 1.3-1.7 1.5 Korzelecka-Orkisz et al, 2013
Pseudorasbora parva 0.13-1.6 0.86 Záhorská and Kováč, 2009
Pseudorasbora parva 0.11-0.46 0.29 Zhu et al, 2014
Silurus glanis 3 3.0 Copp et al, 2009
Silurus glanis 1.8 - 2.2 2.0 Valadou, 2007
Silurus glanis 3.43 3.43 Krol et al, 2014
Silurus glanis 2-2.4 2.2 Proteau et al, 2008
Pomoxis annularis 0.58-1.02 : "Coalescence of yolkglobules (Mature ova).0.58- 1.02 mm." 0.8 Thomas and Kilambi, 1981
Coregonus peled average diameter of unswollen egg 1.5 mm and of ripened eggs reached 2.0 mm 1.5 Dulmaa, 2012