Haugen and Vollestad, 2000



Citation


Haugen, T.O. and Vollestad, L.A. (2000) Population differences in early life-history in grayling. J. Evol. Biol., pp. 897-905

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Thymallus thymallus Egg Degree-days for incubation About 130-340 235.0 °C * day
Thymallus thymallus Egg Temperature for incubation 7.9-11.2 Reared conditions tested] 9.55 °C
Thymallus thymallus Egg Egg Buoyancy Eggs are deposited a few centimetres below the gravel surface Demersal
Thymallus thymallus Spawning conditions Spawning migration period Mature grayling from most lake-living populations migrate to streams and rivers after ice-break to spawn No data
Thymallus thymallus Spawning conditions Spawning season Spring No data
Thymallus thymallus Spawning conditions Homing When mature, the grayling return to their natal streams with great precision to spawn Present
Thymallus thymallus Larvae Full yolk-sac resorption About 130 130.0 °C * day
Thymallus thymallus Larvae Larvae behaviour The yolk_sac larvae remain buried until the yolk is exhausted Demersal