Penaz, 1968



Citation


Penaz, M. (1968) Development of chub, Leuciscus cephalus (Linnaeus, 1758) in the posthatching period. Zool. Listy., pp. 269-278

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Leuciscus cephalus Spawning conditions Spawning substrate Lithophilous fishes Lithophils
Leuciscus cephalus Egg Incubation time 75.5 hours at 18°C 75.5 days
Leuciscus cephalus Egg Degree-days for incubation 56.6 DD at 18°C 56.6 °C * day
Leuciscus cephalus Egg Temperature for incubation At constant temperature of 18°C 18.0 °C
Leuciscus cephalus Egg Egg size after water-hardening 1.97 [Eggs stripped] 1.97 mm
Leuciscus cephalus Larvae Temperature during larval development Temperature was not regulated, range from 15.4-17.8°C 16.6 °C
Leuciscus cephalus Larvae Reaction to light Not respondind to light Photopositive
Leuciscus cephalus Larvae Full yolk-sac resorption 11 days, consumption of yolk sac finished at temperature between 15.4 and 17.8°C 11.0 °C * day
Leuciscus cephalus Larvae Onset of exogeneous feeding 9 days, oral feeding started at temperature between 15.4 and 17.8°C 9.0 °C * day
Leuciscus cephalus Larvae Initial larval size Average standard length: 4.9 mm 4.9 mm
Leuciscus cephalus Larvae Larvae behaviour The embryos are positioned sideways on the bottom of the contained in the immobile condition, and only at times they give violent jerks ahead Demersal