Yegorova, 1978



Citation


Yegorova, T.V. (1978) Spawing runs and spawning times og the sockeye salmon, Oncorhynchus nerka, in the Ozernaya River basin. ?????????, pp.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Oncorhynchus nerka Spawning conditions Spawning period duration Its total duration is 6.5 months, but in one lake is about 3 months 6.5 weeks
Oncorhynchus nerka Spawning conditions Spawning migration period The spawning run usually begins in the last days of May and ends the end of October/beginning of November. The heavy run occurs in the time interval between the middle of July and the beginning of September, the main part of the run from the end of July to the middle of August [The total duration of the spawning run is 5.5 months, the heavy run 1.5-2 months, the main part of the run 10-22 days] ['May', 'September', 'August', 'July', 'October', 'November']
Oncorhynchus nerka Female Absolute fecundity 3.2-3.9 3.55 thousand eggs
Oncorhynchus nerka Spawning conditions Spawning season Spawning occurs from the end of July to February but in some years continue through February, but in lake Dal'neye occur from the end of July to the beginning of October ['February', 'October', 'July']
Oncorhynchus nerka Female Weight at sexual maturity 1.90-2.38 [Weight of female at the beginning and at the end of the running migration] 2.14 kg
Oncorhynchus nerka Female Length at sexual maturity 53.3-55.9 [Length of female at the beginning and at the end of the running migration] 54.6 cm
Oncorhynchus nerka Male Length at sexual maturity 57.5-59.9 [Length of female at the beginning and at the end of the running migration] 58.7 cm
Oncorhynchus nerka Male Weight at sexual maturity 2.58-2.80 [Weight of female at the beginning and at the end of the running migration] 2.69 kg