Mack, A. and Billard, R. (1984) Données bibliographies sur l'élevage des jeunes stades et la biologie des corégones. Bull. Fr. Pisci., pp. 18-44
Species | Development state | Trait | Primary Data | Secondary Data |
Coregonus lavaretus | Egg | Egg size after water-hardening | 3-3.7 [Oocyte] | 3.35 mm |
Coregonus lavaretus | Egg | Temperature for incubation | Best temperatures: 1.5-4, range 0.1-8 | 2.75 °C |
Coregonus lavaretus | Larvae | Initial larval size | 11.7 | 11.7 mm |
Coregonus lavaretus | Female | Age at sexual maturity | 2-3 years [Not specified] | 2.5 year |
Coregonus lavaretus | Female | Relative fecundity | 10-21 | 15.5 thousand eggs/kg |
Coregonus lavaretus | Female | Maximum GSI value | 15.77 [Not specified when] | 15.77 percent |
Coregonus lavaretus | Male | Age at sexual maturity | 2-3 [Not specified] | 2.5 years |
Coregonus lavaretus | Male | Maximum GSI value | 2 [Not specified] | 2.0 percent |
Coregonus lavaretus | Spawning conditions | Spawning temperature | 2-6 | 4.0 °C |
Coregonus lavaretus | Spawning conditions | Spawning depth | Seem to be 7 m | 7.0 m |
Coregonus clupeaformis | Egg | Oocyte diameter | 2-2.7 [Oocyte ?] | 2.35 mm |
Coregonus clupeaformis | Egg | Temperature for incubation | The best temperature seem to be 4°C | 4.0 °C |
Coregonus clupeaformis | Egg | Degree-days for incubation | 305 [2°C], 446 [4°C], 500 [5.9°C], 460 [7.8°C], 417 [10°C] | 305.0 °C * day |
Coregonus clupeaformis | Larvae | Initial larval size | 11.84 [After 231 days of incubation], 11.03 [After 183 days of incubation] and also 13.5 [At hatching] | 11.84 mm |
Coregonus clupeaformis | Female | Age at sexual maturity | Vary between 6 or 9 years for female | 6.0 year |
Coregonus clupeaformis | Female | Weight at sexual maturity | Vary between 0.29 to 0.600 depending on the area | 0.29 kg |
Coregonus clupeaformis | Female | Female sexual dimorphism | No change for female | Absent |
Coregonus clupeaformis | Female | Relative fecundity | 14.3 to 27.6 | 14.3 thousand eggs/kg |
Coregonus clupeaformis | Male | Age at sexual maturity | Vary between 5 to 8 years [male] | 5.0 years |
Coregonus clupeaformis | Male | Weight at sexual maturity | Vary between 0.26 to 0.500 [Male] | 0.26 kg |
Coregonus clupeaformis | Male | Male sexual dimorphism | Nuptial tubercles on the head | Present |
Coregonus clupeaformis | Spawning conditions | Spawning season | From Ocotber to January, but usually from the end of October to the end of December | ['January', 'October', 'December'] |
Coregonus clupeaformis | Spawning conditions | Spawning period duration | The breeding season for an individual female does not probably last more than 10 days | 10.0 weeks |
Coregonus clupeaformis | Spawning conditions | Spawning depth | Usually 2-4 m deep, or less than 5 m | 3.0 m |
Coregonus clupeaformis | Spawning conditions | Spawning substrate | Pebbles or big rocks | Lithophils |
Coregonus clupeaformis | Spawning conditions | Nycthemeral period of oviposition | Probably at night | Night |
Stenodus leucichthys | Egg | Temperature for incubation | Range limits: 0.1-8 | 4.05 °C |
Coregonus peled | Egg | Temperature for incubation | degres Celsius limit 0.1-5, 1.5-4 degres Celsius optimimum | 2.55 °C |
Coregonus peled | Larvae | Reaction to light | fry take food only if intensity> 0.1 lux | Photopositive |
Coregonus peled | Larvae | Reaction to light | lighting> 100 lux for the fry to feed properly | Photopositive |
Coregonus peled | Larvae | Reaction to light | intensity of 20,000 lux which stimulates research activity | Photopositive |
Coregonus peled | Larvae | Reaction to light | In a gradient of 1 to 2475 lux, there is no concentration of larvae | Photopositive |
Coregonus peled | Larvae | Full yolk-sac resorption | 3 to 5 days after hatching | 3.0 °C * day |
Coregonus peled | Larvae | Onset of exogeneous feeding | 5 to 7 h after hatching at 8 days | 5.0 °C * day |