Witkowski and Kowalewski, 1988



Citation


Witkowski, A. and Kowalewski, M. (1988) Migration and structure of spawning population of european grayling Thymallus thymallus (L.) in the Dunajec basin. Arch. Hydrobio., pp. 279-297

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Thymallus thymallus Spawning conditions Spawning period duration In very warm springs migrations and spawing takes 1.5-2 weeks long, if spring is cold last about a month 1.75 weeks
Thymallus thymallus Spawning conditions Spawning water type Spawn up rivers and streams, most often small clean tributaries No category
Thymallus thymallus Female Age at sexual maturity 1-2 for males, but age 2 dominates 1.5 years
Thymallus thymallus Spawning conditions Spawning migration period When water temepratures is 4-6°C, which is most often at the end of March or at the beginning of April ['April', 'March']
Thymallus thymallus Spawning conditions Spawning season April ['April']
Thymallus thymallus Spawning conditions Homing In all fish marked in that year, as many as 18.7% came back to spawn to their home stream Present
Thymallus thymallus Female Length at sexual maturity Most frequently size of female 29.5-34.5, full range of 22.0-39.6 cm 32.0 cm
Thymallus thymallus Male Length at sexual maturity Most frequently size of female 25.5-35.5, full range of 23.0-42.3 cm 30.5 cm
Thymallus thymallus Female Age at sexual maturity 2-3 [Most females were 3 years old] 2.5 year