Kratt and Smith, 1980



Citation


Kratt, L.F. and R.J.F., Smith. (1980) An analysis of the spawning behaviour of the Arctic grayling Thymallus arcticus (Pallas) with observation of mating success. J. Fish. Biol., pp. 661-666

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Thymallus arcticus Spawning conditions Spawning season Between 19 May and 10 June 1975, and between 15 May and 8 June 1976 ['May', 'June']
Thymallus arcticus Spawning conditions Spawning period duration The spawing period lasted 22 days in 1975 and 24 days in 1976. Male held territories for up to 7 days during the breeding season and one male was observed attempting to spawn on 54 occassions. 22.0 weeks
Thymallus arcticus Spawning conditions Spawning site preparation During the spawning period, male grayling defended rectangular-shaped territories approximatively 2.5 to 3 m wide and 3.5 to 4.5 m long [Female did not hold territories on the spawning ground] No category