Bardonnet and Gaudin, 1990


Bardonnet, A. and Gaudin, P. (1990) Influence de ma lumière au cours de l'ontogénèse sur l'expression du rythme d'émergence de l'alevin d'ombre commun, Thymallus thymallus (L. 1758). Bulletin francais de la peche et de la pisciculture [Bull. Fr. Peche Piscic.]., pp. 35-49

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Thymallus thymallus Egg Degree-days for incubation About 200, vary between 150-230 according to different authors 190.0 °C * day
Thymallus thymallus Larvae Reaction to light The fry emerge from gravel during the dawn, day Photopositive
Thymallus thymallus Larvae Temperature during larval development Reared at 10.4°C 10.4 °C
Thymallus thymallus Larvae Full yolk-sac resorption Remain within the gravel during 120-150 DD until their yolk sac is almost fully resorbed 135.0 °C * day
Thymallus thymallus Spawning conditions Spawning substrate Gravel Lithophils
Thymallus thymallus Spawning conditions Spawning site preparation Eggs are buried but not deep within the substrate [No nest is built] Susbtrate chooser