Abstract
Data on age‐ and size‐at‐maturity, growth, and abundance of chum salmon were collected from 1959 to 1977 at Olsen Creek in Prince William Sound, Alaska. Age composition of spawners (3 to 6‐year‐olds) varied from year to year: 4‐year‐old fish were the dominant age group in most (16 out of 19) years and 6‐year‐old fish usually represented less than 1 % of the returns. Mean size of older spawners was significantly larger than that of younger spawners. Size‐at‐maturity was similar among fish from different broods maturing at different ages in the same year. Size‐at‐maturity and survival of progeny were significantly related. The larger the mean size of spawners, the higher the survival rate to adulthood of their progeny. Possible reasons for this relationship are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
More From: Journal of Fish Biology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
