Fishbase, 2006



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Anguilla anguilla Egg Oocyte diameter Mode 1.14, range 0.9-1.38 1.14 mm
Anguilla anguilla Egg Egg Buoyancy Buoyant (Pelagic) Pelagic
Anguilla anguilla Egg Egg adhesiveness Not sticky Non-Adhesive
Anguilla anguilla Female Age at sexual maturity 8-9 [France], 15-18 [Germany], female 8.5 year
Anguilla anguilla Female Length at sexual maturity 60 [Unsexed] 60.0 cm
Anguilla anguilla Male Age at sexual maturity 5 [France], 9-13 [Germany], male 11.0 years
Anguilla anguilla Male Length at sexual maturity 60 [Unsexed] 60.0 cm
Anguilla anguilla Spawning conditions Spawning migration distance Distance of 5000-6000 km is covered by mature adult 5500.0 km
Anguilla anguilla Spawning conditions Spawning season March until May [Also January-February] ['January', 'February', 'March', 'April', 'May']
Anguilla anguilla Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Anguilla anguilla Spawning conditions Parental care Nonguarders No care
Alosa alosa Female Age at sexual maturity 3-6 [Female] 4.5 year
Alosa alosa Female Length at sexual maturity 45-50 47.5 cm
Alosa alosa Male Age at sexual maturity 2-5, male 3.5 years
Alosa alosa Male Length at sexual maturity 30-35 32.5 cm
Alosa sapidissima Egg Egg size after water-hardening 2.5-3.8 [Min-max] 3.15 mm
Alosa sapidissima Egg Egg Buoyancy On the bottom (demersal) Demersal
Alosa sapidissima Egg Egg adhesiveness Not sticky Non-Adhesive
Alosa sapidissima Egg Incubation time 7 [15.50°C], 13.50 [12.00°C] 7.0 days
Alosa sapidissima Egg Incubation time 2 [24°C], 3 [23.3°C], 7 [15°C], 11 |13.30], 13.5 [12.00] 2.0 days
Alosa sapidissima Egg Temperature for incubation 17 17.0 °C
Alosa sapidissima Egg Temperature for incubation 12-15.50, up to 27 13.75 °C
Alosa sapidissima Egg Degree-days for incubation 108.5-162 135.25 °C * day
Alosa sapidissima Female Age at sexual maturity 2-5 [Female] 3.5 year
Alosa sapidissima Female Length at sexual maturity 38-48 [Female] 43.0 cm
Alosa sapidissima Male Age at sexual maturity 2-4, male 3.0 years
Alosa sapidissima Male Length at sexual maturity 30-44, male 37.0 cm
Alosa sapidissima Spawning conditions Spawning migration distance Some shad spawn immediately on entering fresh water while others may undertake fairly long journeys, as musch as 630 km upstream, to their favored spawning grounds 630.0 km
Alosa sapidissima Spawning conditions Spawning season May-June, but also from February until July ['February', 'March', 'April', 'May', 'June', 'July']
Alosa sapidissima Spawning conditions Spawning season May-June but as early as February and late as July ['February', 'May', 'June', 'July']
Alosa sapidissima Spawning conditions Spawning temperature Generally 12-21 [Range from 8-26°C] 16.5 °C
Alosa sapidissima Spawning conditions Mating system The fish pair and swim close together, releasing egg and milt No category
Alosa sapidissima Spawning conditions Spawning release Batch spawner Multiple
Alosa sapidissima Spawning conditions Parity Adults descend shortly after spawning No category
Alosa sapidissima Spawning conditions Parental care Non guarders No care
Aphanius iberus Spawning conditions Spawning season July-August ['July', 'August']
Aphanius iberus Spawning conditions Spawning site preparation Open water / substratum egg scatterers Open water/substratum scatter
Aphanius iberus Spawning conditions Parental care Nonguarders No care
Valencia hispanica Egg Egg size after water-hardening 2.5-2.6 [Not specified] 2.55 mm
Valencia hispanica Spawning conditions Spawning season April-July ['April', 'July']
Valencia hispanica Spawning conditions Spawning site preparation Open water / substratum egg scatterers Open water/substratum scatter
Valencia hispanica Spawning conditions Parental care Nonguarders No care
Barbatula barbatula Egg Oocyte diameter 0.9-1 0.95 mm
Barbatula barbatula Egg Egg adhesiveness Adhesive, found attached to gravel and vegetation Adhesive
Barbatula barbatula Female Age at sexual maturity 2-3 [Mixed] 2.5 year
Barbatula barbatula Male Age at sexual maturity 2-3 [Male] 2.5 years
Barbatula barbatula Spawning conditions Spawning season Mainly April-May, also in March and June ['March', 'April', 'May', 'June']
Barbatula barbatula Spawning conditions Spawning water type Low productivity streams or high productivity environments No category
Barbatula barbatula Spawning conditions Spawning site preparation Open water / substratum egg scatterers Open water/substratum scatter
Barbatula barbatula Spawning conditions Spawning release Spawn only once a year for several years in low productivity streams, but exhibits multiple spawning within a season in high productivity environments Multiple
Barbatula barbatula Spawning conditions Parity Iteroparous Iteroparous
Barbatula barbatula Spawning conditions Parental care Nonguarders No care
Cobitis taenia Egg Egg adhesiveness Eggs are found attached to gravel and weed in shallow, flowing water Adhesive
Cobitis taenia Spawning conditions Spawning season April to July ['April', 'May', 'June', 'July']
Cobitis taenia Spawning conditions Spawning water type Flowing water Flowing or turbulent water
Cobitis taenia Spawning conditions Spawning depth Shallow No data
Cobitis taenia Spawning conditions Spawning substrate Gravel and weed Lithophils
Cobitis taenia Spawning conditions Spawning site preparation Open water/substratum egg scatteres Open water/substratum scatter
Cobitis taenia Spawning conditions Parental care Nonguarders No care
Blicca bjoerkna Egg Egg Buoyancy Demersal [Attached to dense vegetation in shallow water] Demersal
Blicca bjoerkna Female Age at sexual maturity 4 [Female in Finland] 4.0 year
Blicca bjoerkna Female Length at sexual maturity 13-15 [Sex not specified, in Finland] 14.0 cm
Blicca bjoerkna Male Age at sexual maturity 3 [Male in Finland] 3.0 years
Blicca bjoerkna Male Length at sexual maturity 13-15 [Sex not specified, in Finland] 14.0 cm
Blicca bjoerkna Spawning conditions Spawning season May-June [Sometime July] ['May', 'June', 'July']
Blicca bjoerkna Spawning conditions Spawning depth Shallow water No data
Blicca bjoerkna Spawning conditions Spawning substrate Plant substratum Phytophils
Blicca bjoerkna Spawning conditions Spawning site preparation No, open water/substratum egg scatterers Open water/substratum scatter
Blicca bjoerkna Spawning conditions Mating system Exhibits polyandry, with courting tactics developped by males Polyandry
Blicca bjoerkna Spawning conditions Parental care Nonguarders No care
Aristichthys nobilis Spawning conditions Spawning site preparation No, open water/substratum eggs scatterers Open water/substratum scatter
Aristichthys nobilis Spawning conditions Parental care Nonguarders No care
Barbus barbus Egg Oocyte diameter 2-2.5 2.25 mm
Barbus barbus Egg Egg adhesiveness Eggs are attached to gravel and stones in flowing water Adhesive
Barbus barbus Female Age at sexual maturity 4-5 [Female] 4.5 year
Barbus barbus Male Age at sexual maturity 3-4 [Male] 3.5 years
Barbus barbus Spawning conditions Spawning season April to June up to July ['April', 'May', 'June', 'July']
Barbus barbus Spawning conditions Spawning site preparation Open water/ substratum egg scatterers Open water/substratum scatter
Barbus barbus Spawning conditions Parental care Nonguarders No care
Carassius carassius Egg Oocyte diameter 1.4-1.7 [Not specified] 1.55 mm
Carassius carassius Egg Egg Buoyancy Demersal [On the bottom] Demersal
Carassius carassius Egg Egg adhesiveness Adhere to plants Adhesive
Carassius carassius Egg Incubation time 4-8 [6 days at 18.5°C] 6.0 days
Carassius carassius Egg Temperature for incubation 18.5°C 18.5 °C
Carassius carassius Female Absolute fecundity 130-250 per female 190.0 thousand eggs
Carassius carassius Spawning conditions Spawning season May-June ['May', 'June']
Carassius carassius Spawning conditions Spawning depth Shallow water No data
Carassius carassius Spawning conditions Spawning substrate Dense vegetation Phytophils
Carassius carassius Spawning conditions Spawning site preparation Open water/susbtratum egg scatterers Open water/substratum scatter
Carassius carassius Spawning conditions Parental care Nonguarders No care
Chondrostoma nasus Spawning conditions Spawning migration distance Migrates upstream and enters small tributaries No data
Chondrostoma nasus Spawning conditions Spawning season April [Also in Ferbruary and March] ['March', 'April']
Chondrostoma nasus Spawning conditions Spawning site preparation No, open water/susbtratum egg scatterers Open water/substratum scatter
Ctenopharyngodon idella Egg Oocyte diameter 1.2-1.3 [Egg on ovulation] 1.25 mm
Ctenopharyngodon idella Egg Egg adhesiveness Not sticky Non-Adhesive
Ctenopharyngodon idella Female Age at sexual maturity 1-2 [Malaysia] to 6-10 [Russia Fed, Germany], female specified 1.5 year
Ctenopharyngodon idella Female Length at sexual maturity 58.0-63.0 [Malaysia], and 73.8-79.2 [India], female specified 60.5 cm
Ctenopharyngodon idella Male Age at sexual maturity 1-2 [Malaysia] to 6.0-10.0 [Russian Fed], male specified 1.5 years
Ctenopharyngodon idella Male Length at sexual maturity 51.0-60.0 [Malaysia], 60.-75.0 [Russia fed], male specified 55.5 cm
Ctenopharyngodon idella Spawning conditions Spawning water type Riverbeds with strong current Flowing or turbulent water
Ctenopharyngodon idella Spawning conditions Spawning substrate Gravel bottomed areas Lithophils
Ctenopharyngodon idella Spawning conditions Spawning site preparation No, open waters/substratum egg scatterers Open water/substratum scatter
Ctenopharyngodon idella Spawning conditions Spawning release One clear seasonal peak per year Total
Ctenopharyngodon idella Spawning conditions Parental care Non guarders No care
Cyprinus carpio Egg Egg Buoyancy Demersal Demersal
Cyprinus carpio Spawning conditions Spawning temperature 15-20 17.5 °C
Cyprinus carpio Spawning conditions Spawning water type Spawn in marginal, shallow, weed-infested areas Stagnant water
Cyprinus carpio Spawning conditions Spawning depth Shallow No data
Cyprinus carpio Spawning conditions Spawning substrate Obligatory plant spawners Phytophils
Cyprinus carpio Spawning conditions Spawning site preparation Open water/substratum eggs scatterers Open water/substratum scatter
Cyprinus carpio Spawning conditions Mating system Polygamous: a female is usually followed by several males No category
Cyprinus carpio Spawning conditions Parental care Nonguarders No care
Gobio gobio Egg Oocyte diameter 1.4-1.8 1.6 mm
Gobio gobio Female Age at sexual maturity 2-3 [Female] 2.5 year
Gobio gobio Female Length at sexual maturity 9.3 [Female] 9.3 cm
Gobio gobio Male Age at sexual maturity 2-3 [male] 2.5 years
Gobio gobio Male Length at sexual maturity 9.70-10.50 [Male] 10.1 cm
Gobio gobio Spawning conditions Spawning substrate Clean gravel and vegetation in flowing water Lithophils
Gobio gobio Spawning conditions Spawning site preparation Open water/susbtratum egg scatterers Open water/substratum scatter
Gobio gobio Spawning conditions Spawning release Batch spawner [Spawns once a year in low productivity streams, but exhibits multiple spawinng within a season in high productivity environments] Multiple
Gobio gobio Spawning conditions Parity Spawns once a year for several years Iteroparous
Gobio gobio Spawning conditions Parental care Nonguarder No care
Hypophthalmichthys molitrix Female Age at sexual maturity 3-6 [China, unsexed] 4.5 year
Hypophthalmichthys molitrix Female Length at sexual maturity 55-60 [Unsexed, China] 57.5 cm
Hypophthalmichthys molitrix Male Age at sexual maturity 3-6 [Unsexed, China] 4.5 years
Hypophthalmichthys molitrix Male Length at sexual maturity 55-60 [Unsexed, China] 57.5 cm
Hypophthalmichthys molitrix Spawning conditions Spawning site preparation Open water/susbtratum egg scatterers Open water/substratum scatter
Hypophthalmichthys molitrix Spawning conditions Parental care Nonguarders No care
Leuciscus cephalus Female Age at sexual maturity 4-7 Female] 5.5 year
Leuciscus cephalus Female Length at sexual maturity 20-30 [Female] 25.0 cm
Leuciscus cephalus Male Age at sexual maturity 3-5 [Male] 4.0 years
Leuciscus cephalus Spawning conditions Spawning season May [Also April and June] ['April', 'May', 'June']
Leuciscus cephalus Spawning conditions Spawning water type Flowing water Flowing or turbulent water
Leuciscus cephalus Spawning conditions Spawning substrate Gravel, weed and stones Lithophils
Leuciscus idus Egg Egg size after water-hardening 1.6-2.2 [Not specified] 1.9 mm
Leuciscus idus Egg Egg adhesiveness Adhesive [Attached to gravel, weed and stones] Adhesive
Leuciscus idus Female Age at sexual maturity 5-6 [Female] 5.5 year
Leuciscus idus Female Length at sexual maturity 41-49 [Unsexed] 45.0 cm
Leuciscus idus Male Age at sexual maturity 5 [Male] 5.0 years
Leuciscus idus Male Length at sexual maturity 41-49 [Unsexed] 45.0 cm
Leuciscus idus Spawning conditions Spawning season May [From March to June] ['March', 'April', 'May', 'June']
Leuciscus idus Spawning conditions Spawning depth Shallow waters No data
Leuciscus idus Spawning conditions Spawning substrate Gravel, weed, stones Lithophils
Leuciscus idus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Leuciscus idus Spawning conditions Parental care Non guarders No care
Leuciscus leuciscus Egg Egg adhesiveness Fixed on plant or stone Non-Adhesive
Leuciscus leuciscus Female Age at sexual maturity 3 [Female] 3.0 year
Leuciscus leuciscus Female Length at sexual maturity 14-15 [Unsexed] 14.5 cm
Leuciscus leuciscus Male Age at sexual maturity 2-3 [Male] 2.5 years
Leuciscus leuciscus Male Length at sexual maturity 16.3 [Male] 16.3 cm
Leuciscus leuciscus Spawning conditions Spawning season March-April ['March', 'April']
Leuciscus leuciscus Spawning conditions Spawning water type Flowing water Flowing or turbulent water
Leuciscus leuciscus Spawning conditions Spawning depth Shallow waters No data
Leuciscus leuciscus Spawning conditions Spawning substrate Gravel and stones Lithophils
Leuciscus leuciscus Spawning conditions Spawning site preparation Open water/susbtratum egg scatterers Open water/substratum scatter
Leuciscus leuciscus Spawning conditions Parental care Non guarders No care
Mylopharyngodon piceus Egg Egg Buoyancy Pelagic Pelagic
Mylopharyngodon piceus Female Age at sexual maturity 4-5 [Female] 4.5 year
Mylopharyngodon piceus Female Length at sexual maturity 88-95 [Female] 91.5 cm
Mylopharyngodon piceus Male Age at sexual maturity 3 3.0 years
Mylopharyngodon piceus Male Length at sexual maturity 90 [Male] 90.0 cm
Mylopharyngodon piceus Spawning conditions Spawning migration period Prespawning adults migrate upstream in spring - early summer ['April', 'May', 'June', 'July', 'August', 'September']
Mylopharyngodon piceus Spawning conditions Spawning season May to July ['May', 'June', 'July']
Mylopharyngodon piceus Spawning conditions Spawning period duration 8-10 [May to July] 9.0 weeks
Mylopharyngodon piceus Spawning conditions Spawning water type Turbulent waters Flowing or turbulent water
Mylopharyngodon piceus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Mylopharyngodon piceus Spawning conditions Spawning release One clear seasonal peak per year Total
Mylopharyngodon piceus Spawning conditions Parental care Non guarders No care
Phoxinus phoxinus Egg Egg adhesiveness Adhesive, fixed on plants or stones Adhesive
Phoxinus phoxinus Egg Incubation time 14-17 15.5 days
Phoxinus phoxinus Egg Temperature for incubation 15 15.0 °C
Phoxinus phoxinus Egg Degree-days for incubation 160-180 [14-17 days at 15°C] 170.0 °C * day
Phoxinus phoxinus Spawning conditions Spawning season June to July, but starts also in April ['April', 'June', 'July']
Phoxinus phoxinus Spawning conditions Spawning water type Flowing water Flowing or turbulent water
Phoxinus phoxinus Spawning conditions Spawning substrate Clean gravel and stones Lithophils
Phoxinus phoxinus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Phoxinus phoxinus Spawning conditions Spawning release One clear seasonal peak per year Total
Phoxinus phoxinus Spawning conditions Parental care Non guarders No care
Pimephales promelas Spawning conditions Spawning site preparation Nesters Nest built by both parents
Pimephales promelas Spawning conditions Parental care Guarders Biparental care
Pseudorasbora parva Egg Egg adhesiveness Adhesive, eggs adhere to the ceiling of the cavity Adhesive
Pseudorasbora parva Female Age at sexual maturity 1 [Not specified] 1.0 year
Pseudorasbora parva Male Age at sexual maturity 1 [Not specified] 1.0 years
Pseudorasbora parva Spawning conditions Spawning season April to June ['April', 'May', 'June']
Pseudorasbora parva Spawning conditions Spawning site preparation Nests under stones and the male cleans the cavity with its pearl organs No category
Pseudorasbora parva Spawning conditions Parental care Non guarders, brood hiders, the male leaves the nest before the eggs hatch No care
Rhodeus sericeus Female Age at sexual maturity 2-3 [Unsexed] 2.5 year
Rhodeus sericeus Female Female sexual dimorphism Female develops a conduit ovipository by which it deposits its ovules between the gills of the bivalve Absent
Rhodeus sericeus Male Age at sexual maturity 2-3 [Unsexed] 2.5 years
Rhodeus sericeus Spawning conditions Spawning season April to June ['April', 'May', 'June']
Rhodeus sericeus Spawning conditions Parental care Non guarders, brood hiders [The male keeps the eggs and alevins until they leave the refuge] No care
Rutilus rutilus Egg Oocyte diameter 1.0-1.5 1.25 mm
Rutilus rutilus Egg Egg adhesiveness Adhesive, fixed on plant or stone Adhesive
Rutilus rutilus Female Age at sexual maturity 3 [Female] 3.0 year
Rutilus rutilus Spawning conditions Spawning season April-May, sometimes June ['April', 'May', 'June']
Rutilus rutilus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Rutilus rutilus Spawning conditions Parental care Non guarders No care
Scardinius erythrophthalmus Egg Oocyte diameter 1.0-1.7 1.35 mm
Scardinius erythrophthalmus Egg Egg adhesiveness Adhesive, fixed on plants Adhesive
Scardinius erythrophthalmus Female Age at sexual maturity 5 [Unsexed] 5.0 year
Scardinius erythrophthalmus Male Age at sexual maturity 5 [Unsexed] 5.0 years
Scardinius erythrophthalmus Spawning conditions Spawning season May-June, but also from March to July ['March', 'April', 'May', 'June', 'July']
Scardinius erythrophthalmus Spawning conditions Spawning depth Shallow waters No data
Scardinius erythrophthalmus Spawning conditions Spawning substrate Vegetation Phytophils
Scardinius erythrophthalmus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Scardinius erythrophthalmus Spawning conditions Spawning release One clear seasonal peak per year Total
Scardinius erythrophthalmus Spawning conditions Parental care Non guarders No care
Tinca tinca Egg Egg size after water-hardening 1.3-1.4 [Not specified] 1.35 mm
Tinca tinca Egg Egg adhesiveness Fixed on plant or stone Non-Adhesive
Tinca tinca Spawning conditions Spawning season June-July [Sometimes in May and August] ['May', 'June', 'July', 'August']
Tinca tinca Spawning conditions Spawning site preparation Open water / substratum egg scatterers Open water/substratum scatter
Tinca tinca Spawning conditions Parity One clear seasonal peak per year Iteroparous
Tinca tinca Spawning conditions Parental care Nonguarders No care
Vimba vimba Female Age at sexual maturity 3 [Unsexed] 3.0 year
Vimba vimba Female Absolute fecundity 15-20 at the age of 6-7 years 17.5 thousand eggs
Vimba vimba Male Age at sexual maturity 3 [Unsexed] 3.0 years
Vimba vimba Spawning conditions Spawning season April to June ['April', 'May', 'June']
Vimba vimba Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Vimba vimba Spawning conditions Parental care Nonguarders No care
Gambusia affinis Egg Oocyte diameter 1.6-2.1 1.85 mm
Gambusia affinis Male Male sexual dimorphism Internal fertilization is possible because the anal fin is modified into a copulatory organ Absent
Gambusia affinis Spawning conditions Spawning release The female carries about 30 alevins and gestation last for a period of 24 days to a month No category
Gambusia affinis Spawning conditions Parity No obvious seasonal peak No category
Gambusia affinis Spawning conditions Parental care Bearers, internal live bearers: the species is viviparous No category
Esox masquinongy Egg Egg Buoyancy Demersal Demersal
Esox masquinongy Egg Egg adhesiveness Sticky Adhesive
Esox masquinongy Female Length at sexual maturity 77 [Female] 77.0 cm
Esox masquinongy Male Length at sexual maturity 67 [Male] 67.0 cm
Esox masquinongy Spawning conditions Spawning season March to May ['March', 'April', 'May']
Esox masquinongy Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Esox masquinongy Spawning conditions Parental care Nonguarders No care
Esox niger Egg Egg size after water-hardening 2.25-2.95 [Mode 2.5] 2.6 mm
Esox niger Egg Egg Buoyancy Eggs are demersal when first deposited, but apparently becoming semibuoyant to buoyant at eyed stage Demersal
Esox niger Egg Egg adhesiveness They are temporarily adhesive, but lose this characteristic after becoming water-hardened Adhesive
Esox niger Egg Temperature for incubation 10-17.2 13.6 °C
Esox niger Egg Degree-days for incubation 70-110 [2.5 (17.20°C), 5.00 (14.40°C), 11.00 (11.00°C)] 90.0 °C * day
Esox niger Spawning conditions Spawning season March-April, [But from January to June] ['January', 'February', 'March', 'April', 'May', 'June']
Esox niger Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Esox niger Spawning conditions Parental care Nonguarders No care
Esox lucius Egg Oocyte diameter 2.5-3 2.75 mm
Esox lucius Egg Egg Buoyancy Demersal [On the bottom] Demersal
Esox lucius Egg Incubation time 23-29 [6°C], 4-5 [18°C] 26.0 days
Esox lucius Spawning conditions Spawning migration period Spawners move inshore or upstream to the marsh areas to spawn No data
Esox lucius Spawning conditions Spawning season February until April, up to May ['February', 'March', 'April', 'May']
Esox lucius Spawning conditions Spawning period duration Spawned-out adults may stay on the spawning gorunds for as long as 14 weeks, but most leave within 6 14.0 weeks
Esox lucius Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Esox lucius Spawning conditions Nycthemeral period of oviposition Genrally spawning occurs during the day Day
Esox lucius Spawning conditions Mating system The sexes pair and a larger female is usually attended by one or two smaller males No category
Esox lucius Spawning conditions Spawning release Batch spawner, one clear seasonal peak per year Multiple
Esox lucius Spawning conditions Spawning release Only 5 to 60 eggs are released at a time, this act is repeated every few minutes for up to several hours. During the resting, both male and female may take new mates, or they may continue together for several days until all eggs are extruded Multiple
Esox lucius Spawning conditions Parental care Nonguarders No care
Lota lota Egg Egg size after water-hardening 0.5-1.7 [Mode 0.9] 1.1 mm
Lota lota Egg Egg Buoyancy On the bottom, demersal Demersal
Lota lota Egg Egg adhesiveness Not sticky Non-Adhesive
Lota lota Egg Incubation time 30 [6.1°C], 71 [0-3.6°C] 1.8 days
Lota lota Egg Temperature for incubation 0-6.1 3.05 °C
Lota lota Egg Degree-days for incubation 180-200 190.0 °C * day
Lota lota Female Age at sexual maturity 4 4.0 year
Lota lota Female Length at sexual maturity 35-40 37.5 cm
Lota lota Male Age at sexual maturity 3.0 3.0 years
Lota lota Male Length at sexual maturity 27-30 28.5 cm
Lota lota Spawning conditions Spawning season Mainly in December to January [But from November to March] ['January', 'February', 'March', 'November', 'December']
Lota lota Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Lota lota Spawning conditions Spawning release One clear seasonal peak per year Total
Lota lota Spawning conditions Parental care Nonguarders No care
Gasterosteus aculeatus Egg Oocyte diameter 1.1-1.6 [Newly laid eggs] 1.35 mm
Gasterosteus aculeatus Egg Egg size after water-hardening 1.5-1.9 [Swollen eggs] 1.7 mm
Gasterosteus aculeatus Egg Egg adhesiveness Sticky Adhesive
Gasterosteus aculeatus Egg Incubation time 6 [17°C] 6.0 days
Gasterosteus aculeatus Egg Temperature for incubation 17 17.0 °C
Gasterosteus aculeatus Egg Degree-days for incubation About 105 [6 days at 17°C] 105.0 °C * day
Gasterosteus aculeatus Female Age at sexual maturity 1-2 [Both sex] 1.5 year
Gasterosteus aculeatus Female Length at sexual maturity 5.5 [Female] 5.5 cm
Gasterosteus aculeatus Male Age at sexual maturity 1-2 [Both sex] 1.5 years
Gasterosteus aculeatus Male Length at sexual maturity 4.5 [Male] 4.5 cm
Gasterosteus aculeatus Spawning conditions Spawning season Mainly April-June [But in March and September] ['March', 'April', 'May', 'June', 'September']
Gasterosteus aculeatus Spawning conditions Spawning site preparation Just before breeding, males become very territorial. The male builds a nest of plant-material glued together with spigging, a protein produced in the kidney. No category
Gasterosteus aculeatus Spawning conditions Mating system By pair, one male and and one female, but both male and female may mate with more than once with different partners Monogamy
Gasterosteus aculeatus Spawning conditions Spawning release Females may lay eggs in sevreral nests over a period of several days or may be courted by the same male Multiple
Gasterosteus aculeatus Spawning conditions Spawning release The female deposits up to a few hundred eggs No category
Gasterosteus aculeatus Spawning conditions Parental care Male guards and ventilates the eggs and young Male parental care
Pungitius pungitius Egg Oocyte diameter 1-1.5 1.25 mm
Pungitius pungitius Egg Egg adhesiveness Sticky Adhesive
Pungitius pungitius Egg Incubation time 7 days at 18°C 7.0 days
Pungitius pungitius Egg Temperature for incubation 18 18.0 °C
Pungitius pungitius Egg Degree-days for incubation About 130 [7 days at 18°C] 130.0 °C * day
Pungitius pungitius Larvae Larvae behaviour Newly hatched larvae move to the top of the nest and settle to it Demersal
Pungitius pungitius Female Age at sexual maturity 1-2 [Unsexed] 1.5 year
Pungitius pungitius Female Length at sexual maturity 3.7 [Unsexed] 3.7 cm
Pungitius pungitius Male Age at sexual maturity 1-2 [Unsexed] 1.5 years
Pungitius pungitius Male Length at sexual maturity 3.7 [Unsexed] 3.7 cm
Pungitius pungitius Spawning conditions Spawning season May-June [Also in April until August] ['April', 'May', 'June', 'July', 'August']
Pungitius pungitius Spawning conditions Spawning site preparation The male builts the nest with plant fragments and binds it together with a kidney secretion No category
Pungitius pungitius Spawning conditions Mating system More than one female may deposit eggs in the nest No category
Pungitius pungitius Spawning conditions Spawning release Female lays about 50 to 80 eggs No category
Pungitius pungitius Spawning conditions Parental care The male guards and aerates the eggs Male parental care
Ambloplites rupestris Spawning conditions Spawning season April to July ['April', 'May', 'June', 'July']
Ambloplites rupestris Spawning conditions Spawning site preparation Nesters Nest built by both parents
Ambloplites rupestris Spawning conditions Parental care The male cares about the young Male parental care
Lepomis gibbosus Female Age at sexual maturity 2 [Mixed] 2.0 year
Lepomis gibbosus Female Absolute fecundity Up to 1 1.0 thousand eggs
Lepomis gibbosus Male Age at sexual maturity 2 [Mixed] 2.0 years
Lepomis gibbosus Spawning conditions Spawning season May to July ['May', 'June', 'July']
Lepomis gibbosus Spawning conditions Spawning water type Near the shore Stagnant water
Lepomis gibbosus Spawning conditions Spawning depth Very shallow waters No data
Lepomis gibbosus Spawning conditions Spawning site preparation Males build the nest No category
Lepomis gibbosus Spawning conditions Mating system Male prepares the nest for another spawning with the same or different females No category
Lepomis gibbosus Spawning conditions Parental care The male guards the eggs and the young (to about 11 days after hatching) Male parental care
Micropterus dolomieui Female Age at sexual maturity 4 [Female] 4.0 year
Micropterus dolomieui Female Length at sexual maturity 22 [Female] 22.0 cm
Micropterus dolomieui Male Age at sexual maturity 3 [Male] 3.0 years
Micropterus dolomieui Male Length at sexual maturity 20 [Male] 20.0 cm
Micropterus dolomieui Spawning conditions Homing Nest building usually occurs within 150 years of where his nest was built in previous years Absent
Micropterus dolomieui Spawning conditions Spawning season April-May [Also in March and June] ['March', 'April', 'May', 'June']
Micropterus dolomieui Spawning conditions Spawning water type Lakes and rivers Stagnant water
Micropterus dolomieui Spawning conditions Spawning depth Shallow waters No data
Micropterus dolomieui Spawning conditions Spawning substrate Sand, gravel, or rocky bottoms Lithophils
Micropterus dolomieui Spawning conditions Spawning site preparation The male builts the nest No category
Micropterus dolomieui Spawning conditions Mating system By pair. After spawning, the female leaves the nest and may spawn with another male in another nest Monogamy
Micropterus dolomieui Spawning conditions Parity One clear seasonnal peak per year Iteroparous
Micropterus dolomieui Spawning conditions Parental care Males guard the eggs and young Male parental care
Micropterus salmoides Egg Egg adhesiveness Sticky Adhesive
Micropterus salmoides Spawning conditions Spawning season March to June [France], May to August |North America] ['March', 'April', 'May', 'June', 'July', 'August']
Micropterus salmoides Spawning conditions Spawning temperature Wen temperature reach 15 15.0 °C
Micropterus salmoides Spawning conditions Spawning depth Shallow waters No data
Micropterus salmoides Spawning conditions Spawning substrate Muddy bottoms No category
Micropterus salmoides Spawning conditions Spawning site preparation The male which becomes aggressive and territorial builts the nest No category
Micropterus salmoides Spawning conditions Spawning release A female may spawn with several males on different nests Multiple
Dicentrarchus labrax Egg Oocyte diameter Mode 1.3, 1.1-1.51 [Not specified] 1.31 mm
Dicentrarchus labrax Egg Egg Buoyancy Buoyant Pelagic
Dicentrarchus labrax Egg Egg adhesiveness Not sticky Non-Adhesive
Dicentrarchus labrax Egg Incubation time 2.3 [17°C], 4.7 [13°C] 2.3 days
Dicentrarchus labrax Egg Temperature for incubation 13-17 15.0 °C
Dicentrarchus labrax Egg Degree-days for incubation 40-50 45.0 °C * day
Dicentrarchus labrax Larvae Initial larval size Mode 3.83, range 3.61-4.05 3.83 mm
Dicentrarchus labrax Larvae Larvae behaviour Planktonic Demersal
Dicentrarchus labrax Larvae Temperature during larval development 16.5 16.5 °C
Dicentrarchus labrax Female Age at sexual maturity 3 [Unsexed] 3.0 year
Dicentrarchus labrax Female Length at sexual maturity 36-46 [Female] 41.0 cm
Dicentrarchus labrax Male Age at sexual maturity 3 [Unsexed] 3.0 years
Dicentrarchus labrax Male Length at sexual maturity 31-41 [Male] 36.0 cm
Dicentrarchus labrax Spawning conditions Spawning season January till April, and March to June in nothern regions ['January', 'March', 'April', 'May', 'June']
Dicentrarchus labrax Spawning conditions Spawning site preparation Open water/susbtratum egg scatterers Open water/substratum scatter
Dicentrarchus labrax Spawning conditions Mating system Spawns in group Promiscuity
Dicentrarchus labrax Spawning conditions Spawning release Batch spawner [Once clear seasonal peak per year] Multiple
Dicentrarchus labrax Spawning conditions Parental care Non guarders No care
Morone americana Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Morone americana Spawning conditions Parental care Non guarders No care
Morone chrysops Female Length at sexual maturity 28 [Female] 28.0 cm
Morone chrysops Male Length at sexual maturity 21 [Male] 21.0 cm
Morone chrysops Spawning conditions Spawning site preparation Open water/ substratum egg scatterers Open water/substratum scatter
Morone chrysops Spawning conditions Parental care Nonguarders No care
Morone saxatilis Egg Egg size after water-hardening 2.4-3.9 3.15 mm
Morone saxatilis Egg Egg Buoyancy Buoyant (pelagic) Pelagic
Morone saxatilis Female Age at sexual maturity 4-7 [Female] 5.5 year
Morone saxatilis Male Age at sexual maturity 5 [Male] 5.0 years
Morone saxatilis Spawning conditions Spawning season Mainly May, but April-June ['April', 'May', 'June']
Morone saxatilis Spawning conditions Spawning water type Move into fresh or brackish water to spawn No category
Morone saxatilis Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Morone saxatilis Spawning conditions Spawning release Females spawn more than once in a season [One clear seasonal peak per year] Multiple
Morone saxatilis Spawning conditions Parity Females don't necessarily spawn every year Iteroparous
Morone saxatilis Spawning conditions Parental care Nonguarders No care
Gymnocephalus cernua Egg Oocyte diameter 0.5-1 0.75 mm
Gymnocephalus cernua Egg Egg Buoyancy On the bottom demersal Demersal
Gymnocephalus cernua Egg Egg adhesiveness Sticky, in a gelly matrix Adhesive
Gymnocephalus cernua Female Age at sexual maturity 1-2 1.5 year
Gymnocephalus cernua Male Age at sexual maturity 1 [Male] 1.0 years
Gymnocephalus cernua Spawning conditions Spawning season April-May but also March to up to August ['March', 'April', 'May', 'August']
Gymnocephalus cernua Spawning conditions Spawning site preparation Open water/ substratum egg scatterers Open water/substratum scatter
Gymnocephalus cernua Spawning conditions Parental care Non-guarders No care
Perca flavescens Spawning conditions Spawning substrate Non obligatory plant spawner Phytophils
Perca flavescens Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Perca flavescens Spawning conditions Parental care Non guarders No care
Perca fluviatilis Egg Oocyte diameter 1.5-2.5 2.0 mm
Perca fluviatilis Egg Egg Buoyancy Demersal, on the bottom Demersal
Perca fluviatilis Egg Incubation time 8-16 12.0 days
Perca fluviatilis Female Age at sexual maturity 3 [Female] 3.0 year
Perca fluviatilis Female Length at sexual maturity 12-15 [Female] 13.5 cm
Perca fluviatilis Male Age at sexual maturity 2 [Male] 2.0 years
Perca fluviatilis Male Length at sexual maturity 8 but FL 8.0 cm
Perca fluviatilis Spawning conditions Spawning season Mainly March to May ['March', 'April', 'May']
Perca fluviatilis Spawning conditions Spawning substrate Female lays the ribbon of eggs over weeds or other submerged objects Phytophils
Perca fluviatilis Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Perca fluviatilis Spawning conditions Mating system Polyandry, one female and one or two males Polyandry
Perca fluviatilis Spawning conditions Spawning release All together Total
Perca fluviatilis Spawning conditions Parental care Nonguarders No care
Sander lucioperca Egg Oocyte diameter 1-1.5 1.25 mm
Sander lucioperca Larvae Initial larval size 3.5 3.5 mm
Sander lucioperca Larvae Temperature during larval development 13.1 13.1 °C
Sander lucioperca Spawning conditions Spawning migration period When the temperature rises above 2.8°C in spring, they commence upstream migration ['April', 'May', 'June']
Sander lucioperca Spawning conditions Spawning season April-May [March to August] ['March', 'April', 'May', 'June', 'July', 'August']
Sander lucioperca Spawning conditions Spawning temperature Around 11 11.0 °C
Sander lucioperca Spawning conditions Spawning water type Moving water, in a current of 1.4-1.5 m/sec Flowing or turbulent water
Sander lucioperca Spawning conditions Spawning substrate Over gravel [Eggs are found attached to emergent vegetation or stones and gravel] Lithophils
Sander lucioperca Spawning conditions Spawning site preparation Nesters Nest built by both parents
Sander lucioperca Spawning conditions Spawning release One clear seasonal peak per year Total
Sander lucioperca Spawning conditions Parental care Guarders Biparental care
Sander vitreus Egg Egg size after water-hardening 1.5-2 [Not specified] 1.75 mm
Sander vitreus Egg Egg Buoyancy Demersal, on the bottom Demersal
Sander vitreus Egg Incubation time 12-18 15.0 days
Sander vitreus Female Age at sexual maturity 3-6 [Female] 4.5 year
Sander vitreus Female Length at sexual maturity 36 [Female] 36.0 cm
Sander vitreus Male Age at sexual maturity 2-4 [Male] 3.0 years
Sander vitreus Male Length at sexual maturity 28, [Male] 28.0 cm
Sander vitreus Spawning conditions Spawning season April-June ['April', 'June']
Sander vitreus Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Sander vitreus Spawning conditions Nycthemeral period of oviposition Deposition of eggs usually occurs in a single night Night
Sander vitreus Spawning conditions Mating system Occurs in small groups: a larger female and two smaller adults or two females and up to six males Promiscuity
Sander vitreus Spawning conditions Spawning release Batch spawner, with one clear seasonal peak per year Multiple
Sander vitreus Spawning conditions Spawning release Deposition of eggs usually occurs in a single night Total
Sander vitreus Spawning conditions Parental care Non guarders No care
Coregonus lavaretus Female Age at sexual maturity 3-4 [Female] 3.5 year
Coregonus lavaretus Male Age at sexual maturity 3 [Male] 3.0 years
Coregonus lavaretus Spawning conditions Spawning season November to December ['November', 'December']
Coregonus lavaretus Spawning conditions Spawning site preparation Open water/substratum egg scatteres Open water/substratum scatter
Coregonus lavaretus Spawning conditions Nycthemeral period of oviposition Spawning takes place at night Night
Coregonus lavaretus Spawning conditions Parental care Nonguarders No care
Coregonus albula Egg Egg Buoyancy Demersal Demersal
Coregonus albula Egg Temperature for incubation 7.0 7.0 °C
Coregonus albula Female Age at sexual maturity 2 [Mixed] 2.0 year
Coregonus albula Male Age at sexual maturity 2 [Mixed] 2.0 years
Coregonus albula Spawning conditions Spawning migration period Ascend a short distance up the rivers in late August to mid-October ['August', 'September', 'October']
Coregonus albula Spawning conditions Spawning season November-December [But described in February-March in some lakes in Finland] ['February', 'March', 'November', 'December']
Coregonus albula Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Coregonus albula Spawning conditions Parental care Non guarders No care
Coregonus clupeaformis Egg Incubation time 140 [0.5°C] 140.0 days
Coregonus clupeaformis Female Length at sexual maturity 23-27 [Sex mixed] 25.0 cm
Coregonus clupeaformis Male Length at sexual maturity 23-27 [Sex mixed] 25.0 cm
Coregonus clupeaformis Spawning conditions Spawning season November to December ['November', 'December']
Coregonus clupeaformis Spawning conditions Spawning site preparation Open water/substratum egg scatterers Open water/substratum scatter
Coregonus clupeaformis Spawning conditions Nycthemeral period of oviposition Spawning occurs at night Night
Coregonus clupeaformis Spawning conditions Mating system A female and one or more males rise to the surface, release eggs and milt and descend separately toward the bottom No category
Coregonus clupeaformis Spawning conditions Parity Breeds annually in the southern parts of the range, but only every other year or even third year in the arctic and sib-arctic region No category
Coregonus clupeaformis Spawning conditions Parental care Non guarders No care
Hucho hucho Egg Oocyte diameter 5 5.0 mm
Hucho hucho Egg Egg Buoyancy Demersal Demersal
Hucho hucho Egg Temperature for incubation 8-10 9.0 °C
Hucho hucho Egg Degree-days for incubation About 200 [19 days at 8-10°C] 9.0 °C * day
Hucho hucho Larvae Larvae behaviour Once the vesicle is reabsorbed, young stays near spawning area feeding on bottom fauna Demersal
Hucho hucho Spawning conditions Spawning season April-May ['April', 'May']
Hucho hucho Spawning conditions Spawning water type Migrate upstream into smaller and shallower streams No category
Hucho hucho Spawning conditions Spawning depth 0.3-1.5 0.9 m
Hucho hucho Spawning conditions Spawning substrate Sand or gravels Lithophils
Hucho hucho Spawning conditions Spawning site preparation Female dig a nest [Brood hiders] Susbtrate chooser
Hucho hucho Spawning conditions Parental care Non guarders No care
Oncorhynchus gorbuscha Egg Oocyte diameter 6 6.0 mm
Oncorhynchus gorbuscha Egg Incubation time 61-130 days at 4.5°C 95.5 days
Oncorhynchus gorbuscha Female Absolute fecundity 1.2-1.8 1.5 thousand eggs
Oncorhynchus gorbuscha Female Oocyte development Synchronous ovarian organization, determinate fecundity Synchronous
Oncorhynchus gorbuscha Spawning conditions Spawning migration period June to late September, depending on location ['June', 'September']
Oncorhynchus gorbuscha Spawning conditions Spawning season September-November [June-November] ['June', 'September', 'October', 'November']
Oncorhynchus gorbuscha Spawning conditions Spawning site preparation The female buids the redd by lying on one side and using its tail, it deplace silt and light gravel to produce a deep trough Susbtrate chooser
Oncorhynchus gorbuscha Spawning conditions Mating system In some cases, several males spawn with a single female No category
Oncorhynchus gorbuscha Spawning conditions Parity Survivorship rates are low, at 1-25% Semelparous
Oncorhynchus gorbuscha Spawning conditions Parental care Non guarders No care
Oncorhynchus keta Egg Egg size after water-hardening About 6.7 6.7 mm
Oncorhynchus keta Egg Degree-days for incubation 540-600 [60 days at 8-10°C] 570.0 °C * day
Oncorhynchus keta Larvae Initial larval size Larval size is around 16 mm 16.0 mm
Oncorhynchus keta Female Age at sexual maturity 2-4 [Both sex] 3.0 year
Oncorhynchus keta Female Length at sexual maturity 70.0 70.0 cm
Oncorhynchus keta Female Oocyte development Synchronous ovarian organization, determinate fecundity Synchronous
Oncorhynchus keta Male Age at sexual maturity 2-4 [Both sex] 3.0 years
Oncorhynchus keta Male Length at sexual maturity 81 [Male] 81.0 cm
Oncorhynchus keta Spawning conditions Spawning season October, but from September to November ['September', 'October', 'November']
Oncorhynchus keta Spawning conditions Spawning temperature 4-11°C 7.5 °C
Oncorhynchus keta Spawning conditions Spawning water type Near the head waters, current speeds of about 20 cm/s Flowing or turbulent water
Oncorhynchus keta Spawning conditions Spawning depth About 3 m 3.0 m
Oncorhynchus keta Spawning conditions Spawning substrate Over sand and pebbles Lithophils
Oncorhynchus keta Spawning conditions Spawning site preparation The female excavates a hole of around 1 meter diameter and 50 cm depth before spawning occur No category
Oncorhynchus keta Spawning conditions Mating system Males are very aggressive and may spawn with different females; females likewise may spawn with other males and therefore builds different nests No category
Oncorhynchus keta Spawning conditions Spawning release A fish spawns 7000-7000 eggs in two or three egg releases No category
Oncorhynchus keta Spawning conditions Parity Adults die after a week Semelparous
Oncorhynchus keta Spawning conditions Parental care The female covers the nest Female parental care
Oncorhynchus kisutch Egg Oocyte diameter 4.5-6 5.25 mm
Oncorhynchus kisutch Egg Incubation time 6 or 7 weeks 6.0 days
Oncorhynchus kisutch Female Oocyte development Synchronous ovarian organization, determinate fecunidy Synchronous
Oncorhynchus kisutch Spawning conditions Spawning site preparation The female finds a spot and digs a pitt [At this point she is aggresive toward other females] Susbtrate chooser
Oncorhynchus kisutch Spawning conditions Mating system The pair are side by side, the whole process is repeated for several days until the female deposists all her eggs [The male then leaves and may seek another female] No category
Oncorhynchus kisutch Spawning conditions Parental care Cover the eggs No category
Oncorhynchus mykiss Egg Oocyte diameter 3-5 4.0 mm
Oncorhynchus mykiss Egg Incubation time 4-7 weeks 5.5 days
Oncorhynchus mykiss Egg Temperature for incubation Low water temperature (<13°C) is considered for good quality 13.0 °C
Oncorhynchus mykiss Female Age at sexual maturity 3 [Female] 3.0 year
Oncorhynchus mykiss Female Absolute fecundity 0.7-4 2.35 thousand eggs
Oncorhynchus mykiss Female Oocyte development Synchronous ovarian organization, determinate fecundity Synchronous
Oncorhynchus mykiss Male Age at sexual maturity 2-3 [Male] 2.5 years
Oncorhynchus mykiss Spawning conditions Spawning season October to May ['January', 'February', 'March', 'April', 'May', 'October', 'November']
Oncorhynchus mykiss Spawning conditions Spawning site preparation The female finds a spot and digs a pitt Susbtrate chooser
Oncorhynchus mykiss Spawning conditions Mating system By pair are side by side Monogamy
Oncorhynchus mykiss Spawning conditions Spawning release The whole process is repeated for several days until the female deposists all her eggs Multiple
Oncorhynchus nerka Egg Oocyte diameter 4.5-5 4.75 mm
Oncorhynchus nerka Egg Incubation time 42-63 [Take 6 to 9 weeks in most areas but may require as long as 5 months] 52.5 days
Oncorhynchus nerka Female Oocyte development Synchronous ovarian organization, determinate fecundity Synchronous
Oncorhynchus nerka Spawning conditions Spawning migration period Ocurrs during summer and fall as late as December ['July', 'August', 'September', 'October', 'November', 'December']
Oncorhynchus nerka Spawning conditions Homing Return to natal stream to spawn Present
Oncorhynchus nerka Spawning conditions Spawning season September-October, or November-December ['September', 'October', 'November', 'December']
Oncorhynchus nerka Spawning conditions Spawning substrate Generally gravel Lithophils
Oncorhynchus nerka Spawning conditions Spawning site preparation Female digs a nest [Agressive behaviour of both males and females] Susbtrate chooser
Oncorhynchus nerka Spawning conditions Mating system By pair, a female may spawn with several dominant males, a male may breed with different females Monogamy
Oncorhynchus nerka Spawning conditions Spawning release A female normally needs 3 to 5 days to deposit all her eggs and utilizes 3 to 5 nests for this prupose No category
Oncorhynchus nerka Spawning conditions Parity All adult die after spawning Semelparous
Oncorhynchus tshawytscha Egg Oocyte diameter 6.0-7.0 6.5 mm
Oncorhynchus tshawytscha Egg Incubation time 50-84 [7 to 9 weeks, and up to 12] 67.0 days
Oncorhynchus tshawytscha Female Oocyte development Synchronous ovarian develoment, determinate fecundity Synchronous
Oncorhynchus tshawytscha Spawning conditions Spawning migration distance Adults migrates up to 4,827 km upstream to spawn 827.0 km
Oncorhynchus tshawytscha Spawning conditions Spawning migration period Migration from the sea begins in December so that the first fish are near the river mouths by spring ['April', 'May', 'June', 'December']
Oncorhynchus tshawytscha Spawning conditions Spawning season September to November, also March to May ['March', 'April', 'May', 'September', 'October', 'November']
Oncorhynchus tshawytscha Spawning conditions Spawning site preparation Once a female selects a spot, she begins to dig a nest, driving away other females during the period of nest building Susbtrate chooser
Oncorhynchus tshawytscha Spawning conditions Mating system One female with a dominant male, sometimes with smaller males No category
Oncorhynchus tshawytscha Spawning conditions Spawning release The whole process of mating and spawning is repeated until the female releases all her eggs, which may take several days [The male the leaves the female and may mate with another female] Multiple
Oncorhynchus tshawytscha Spawning conditions Parity Spent adults usually die a few days after spawning Semelparous
Oncorhynchus tshawytscha Spawning conditions Parental care Brood hiders [The eggs are covered and a new nest is made], the female guards the nest for as long as she can Male parental care
Salmo salar Egg Egg adhesiveness Sticky Adhesive
Salmo salar Female Relative fecundity 0.5-2 1.25 thousand eggs/kg
Salmo salar Female Absolute fecundity 8-26 17.0 thousand eggs
Salmo salar Male Age at sexual maturity 3-7 [Male] 5.0 years
Salmo salar Spawning conditions Homing Salmon return to their home rivers and if possible to the area where they hatched and spent their initial freshwater parr life Present
Salmo salar Spawning conditions Spawning season September to November, but also December, January ['January', 'September', 'October', 'November', 'December']
Salmo salar Spawning conditions Spawning period duration Spawing is completed in 2-3 days 2.5 weeks
Salmo salar Spawning conditions Spawning water type Areas with appreciable current Flowing or turbulent water
Salmo salar Spawning conditions Spawning depth About 10-30 cm deep 20.0 m
Salmo salar Spawning conditions Spawning substrate Gravel Lithophils
Salmo salar Spawning conditions Spawning site preparation The female selects a site where the gravel is of the correct size and of sufficient depth No category
Salmo salar Spawning conditions Mating system By pair, one male and one female Monogamy
Salmo salar Spawning conditions Spawning release Batch spawner Multiple
Salmo salar Spawning conditions Parental care Brood hiders, males cover the eggs after fertilization No category
Salmo trutta fario Female Age at sexual maturity 3-4 [Female] 3.5 year
Salmo trutta fario Female Length at sexual maturity 14.7 14.7 cm
Salmo trutta fario Male Age at sexual maturity 1-3 [Male] 2.0 years
Salmo trutta fario Male Length at sexual maturity 12.5 [Male] 12.5 cm
Salmo trutta fario Spawning conditions Spawning season October to January, and up to March ['January', 'March', 'October', 'November']
Salmo trutta fario Spawning conditions Spawning site preparation Brood hiders Susbtrate chooser
Salmo trutta fario Spawning conditions Parental care Nonguarders No care
Salvelinus alpinus Egg Oocyte diameter 3.5-5.5 4.5 mm
Salvelinus alpinus Egg Incubation time 60-70 [At 4.4°C] 65.0 days
Salvelinus alpinus Egg Temperature for incubation 4.4 4.4 °C
Salvelinus alpinus Female Age at sexual maturity 5-10 [Female] 7.5 year
Salvelinus alpinus Female Length at sexual maturity 60.0 60.0 cm
Salvelinus alpinus Male Age at sexual maturity 4-5 [Male] 4.5 years
Salvelinus alpinus Spawning conditions Spawning season October, November but also in September until January, even March ['January', 'March', 'September', 'October', 'November']
Salvelinus alpinus Spawning conditions Spawning site preparation Once a spot is selected, a female starts digging a redd Susbtrate chooser
Salvelinus alpinus Spawning conditions Nycthemeral period of oviposition Spawning takes place at almost any time of the day Day
Salvelinus alpinus Spawning conditions Mating system By pair, but males often mate with more than one female and sometimes a female will mate successively with two or more males Monogamy
Salvelinus alpinus Spawning conditions Spawning release Batch spawner Multiple
Salvelinus alpinus Spawning conditions Spawning release Several days are usually required for females to deposit all their eggs Multiple
Salvelinus alpinus Spawning conditions Parental care Non guarders [The females covers the eggs, and begins the next redd] No care
Salvelinus fontinalis Egg Oocyte diameter 3.5-5 4.25 mm
Salvelinus fontinalis Egg Incubation time 100 days at 5°C 100.0 days
Salvelinus fontinalis Egg Temperature for incubation 1.7-5 3.35 °C
Salvelinus fontinalis Spawning conditions Spawning season September to November, sometimes August to December ['August', 'September', 'October', 'November', 'December']
Salvelinus fontinalis Spawning conditions Spawning substrate Small pebbles Lithophils
Salvelinus fontinalis Spawning conditions Spawning site preparation A receptive female chooses a spot and digs a redd Susbtrate chooser
Salvelinus fontinalis Spawning conditions Mating system When the redd is completed, the pair entered the nest and deposit eggs and milt, once the eggs are completely covered, she moves to the upstream end of the redd and begins digging a new redd No category
Salvelinus fontinalis Spawning conditions Parental care Nonguarders, the female covers the eggs and then leaves No care
Salvelinus namaycush Egg Oocyte diameter 5-6 5.5 mm
Salvelinus namaycush Egg Egg Buoyancy Demersal (on the bottom) Demersal
Salvelinus namaycush Egg Incubation time 15-21 weeks, hatching normally occurs between mid-February and late March 18.0 days
Salvelinus namaycush Spawning conditions Spawning season November-December, but also August-September and until January ['January', 'August', 'September', 'November', 'December']
Salvelinus namaycush Spawning conditions Spawning site preparation Open water / substratum egg scatterers [Males reach spawning beds first and spend some time cleaning the rocks] Open water/substratum scatter
Salvelinus namaycush Spawning conditions Nycthemeral period of oviposition The spawning act occurs mostly at night, with peak spawning between dusk and 9 or 10 pm Night
Salvelinus namaycush Spawning conditions Mating system By pair, on occassion as many as seven males and three females may engage in a mass spawning act Monogamy
Salvelinus namaycush Spawning conditions Spawning release Batch spawner, the spawning act (one female and one or two males) is repeated until the female releases all her eggs Multiple
Salvelinus namaycush Spawning conditions Parity Spawning occurs annually in southern areas, every other year in other parts No category
Salvelinus namaycush Spawning conditions Parental care Nonguarders No care
Stenodus leucichthys Egg Oocyte diameter Average 2.5 2.5 mm
Stenodus leucichthys Egg Egg Buoyancy Demersal [On the bottom] Demersal
Stenodus leucichthys Female Age at sexual maturity 10-12 [Female] 11.0 year
Stenodus leucichthys Female Length at sexual maturity 70-75 72.5 cm
Stenodus leucichthys Male Age at sexual maturity 9-11 [Male] 10.0 years
Stenodus leucichthys Male Length at sexual maturity 65-70 67.5 cm
Stenodus leucichthys Spawning conditions Spawning migration period Upstream migration from wintering areas begins at ice break-up ['January', 'February', 'March']
Stenodus leucichthys Spawning conditions Spawning season September to October ['September', 'October']
Stenodus leucichthys Spawning conditions Spawning depth Near the surface No data
Stenodus leucichthys Spawning conditions Spawning site preparation Open water / substratum egg scatterers Open water/substratum scatter
Stenodus leucichthys Spawning conditions Nycthemeral period of oviposition Spawning begins at dusk, and continuing well into the night Night
Stenodus leucichthys Spawning conditions Mating system A female accompanied by a male swims to the surface near the upstream end of the spawning ground [Female may repeat the spawning act over the downstream portion of the spawning area or may move upstream to the head of the grounds before releaseing more eggs] No category
Stenodus leucichthys Spawning conditions Spawning release Female may repeat the spawning act over the downstream portion of the spawning area or may move upstream to the head of the grounds before releasing more eggs No category
Stenodus leucichthys Spawning conditions Parity Russian fish appear to spawn only every third or fourth year No category
Stenodus leucichthys Spawning conditions Parental care Nonguarders No care
Thymallus thymallus Female Age at sexual maturity 3-4 [Female] 3.5 year
Thymallus thymallus Male Age at sexual maturity 2-3 [Male] 2.5 years
Thymallus thymallus Spawning conditions Spawning season Mainly March-April, sometimes until May-June ['March', 'April', 'May', 'June']
Thymallus thymallus Spawning conditions Spawning site preparation Brood hiders Susbtrate chooser
Thymallus thymallus Spawning conditions Parity One clear seasonal peak per year Iteroparous
Thymallus thymallus Spawning conditions Parental care Non guarders No care
Thymallus arcticus Egg Oocyte diameter 2.5 2.5 mm
Thymallus arcticus Egg Egg size after water-hardening 3.5 [Swollen egg] 3.5 mm
Thymallus arcticus Egg Incubation time 11-12 11.5 days
Thymallus arcticus Spawning conditions Spawning season May-June ['May', 'June']
Thymallus arcticus Spawning conditions Spawning water type Tributaries No category
Thymallus arcticus Spawning conditions Spawning site preparation Brood hiders, no redd is constructed, but the vibrations of the tails during the spawning act stirs up the substrate and produce a slight depression Susbtrate chooser
Thymallus arcticus Spawning conditions Mating system By pair, but male mate several times Monogamy
Thymallus arcticus Spawning conditions Spawning release A female may spawn only once, or several times in different areas Multiple
Thymallus arcticus Spawning conditions Parental care Nonguarders No care
Cottus gobio Egg Oocyte diameter 2-2.5 2.25 mm
Cottus gobio Egg Egg adhesiveness Adhesive [Fixed on plants or stone] Adhesive
Cottus gobio Female Age at sexual maturity 1-3 [Mixed] 2.0 year
Cottus gobio Female Length at sexual maturity 4.2 [Female] 4.2 cm
Cottus gobio Male Age at sexual maturity 2-3 [Mixed] 2.5 years
Cottus gobio Male Length at sexual maturity 4.6 4.6 cm
Cottus gobio Spawning conditions Spawning season March-April, but also Ferbuary up to June ['March', 'April', 'June']
Cottus gobio Spawning conditions Spawning site preparation Nesters, eggs are deposited below a stone Susbtrate chooser
Cottus gobio Spawning conditions Spawning release Spawns once a year for several years in low productivity streams, but exhibits multiple spawning within a season in high productivity enviroments Multiple
Cottus gobio Spawning conditions Parental care Male protects several batches of eggs, for about 3 weeks |Larvae are not guarded and may occasionally been eaten] No care
Ameiurus nebulosus Spawning conditions Spawning site preparation Nests are built by one or both sexes Nest built by both parents
Ameiurus nebulosus Spawning conditions Mating system By pair, one male and one female Monogamy
Ameiurus nebulosus Spawning conditions Parental care Although eggs are cared for by one or both parents, there have been reports of parents eating their own eggs Biparental care
Ictalurus punctatus Female Length at sexual maturity 36 [Unsexed] 36.0 cm
Ictalurus punctatus Male Length at sexual maturity 36 [Unsexed] 36.0 cm
Ictalurus punctatus Spawning conditions Spawning site preparation The pair builds a depression in the ground No category
Ictalurus punctatus Spawning conditions Spawning release Batch spawners Multiple
Ictalurus punctatus Spawning conditions Parental care Nest is guarded by the male Male parental care
Silurus glanis Female Age at sexual maturity 3-4 3.5 year
Silurus glanis Male Age at sexual maturity 2-3 [Male] 2.5 years
Silurus glanis Spawning conditions Spawning season May-June ['May', 'June']
Silurus glanis Spawning conditions Spawning site preparation Clutch tenders No category
Silurus glanis Spawning conditions Spawning release One clear seasonal peak per year Total
Silurus glanis Spawning conditions Parental care Male guards a cluster of eggs Male parental care
Osmerus eperlanus Egg Oocyte diameter Mode 0.95, range 0.6-1.3 [Not specified] 0.95 mm
Osmerus eperlanus Egg Egg Buoyancy Demersal [On the bottom] Demersal
Osmerus eperlanus Egg Egg adhesiveness With stalk, sticky Adhesive
Osmerus eperlanus Spawning conditions Spawning season March-April, but also in February and May ['February', 'March', 'April', 'May']
Osmerus eperlanus Spawning conditions Spawning water type Lower reaches of streams, deeper parts of lakes Stagnant water
Osmerus eperlanus Spawning conditions Spawning substrate Sand bottom Psammophils
Osmerus eperlanus Spawning conditions Spawning site preparation Open water/substratum eggs scatterers Open water/substratum scatter
Osmerus eperlanus Spawning conditions Parity Many individuals die after the spawning Semelparous
Osmerus eperlanus Spawning conditions Parental care Non guarders No care