Gustafson, 1997



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Oncorhynchus nerka Spawning conditions Spawning period duration 1-2 weeks peak spawning but overall duration 6-8 1.5 weeks
Oncorhynchus nerka Female Age at sexual maturity Overall age of maturity in sockeye salmon ranges from 3 to 8 years. Males are capable of maturing at any of 22 different combinations of freshwater and ocean ages. Kokanee generally mature after either 2, 3 or 4 years 3.0 years
Oncorhynchus nerka Spawning conditions Spawning migration period In general, river entry and spawn timing show considerable spatial and temporal variability. Sockeye salmon enter Puget Sound Rivers from mid-June through August, while Columbia River populations gegin river entry in May ['August', 'May', 'June']
Oncorhynchus nerka Female Absolute fecundity 2-5.2 [Average fecundity accross the range of sockeye salmon is from 2-5.2, and from 0.3 to 2 for Kokanee] 3.6 thousand eggs
Oncorhynchus nerka Spawning conditions Spawning season Spawn in Puget Sound from late September to late December and occasionally into January, and in the Columbia River from late September to early November ['November', 'January', 'December', 'September']
Oncorhynchus nerka Female Age at sexual maturity Overall age of maturity in sockeye salmon ranges from 3 to 8 years, female may mature at any 14 different age compositions. Kokanee generally mature after either 2, 3 or 4 years 3.0 year