Mack and Billard, 1984



Citation


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

Associated characteristics


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