Abstract
A computer simulation by Saila and Shappy (1963. J. Cons. Int. Explor. Mer 28: 153–166) indicated that the migrations of Pacific salmon (Oncorhynchus) from high seas feeding areas to the coastal vicinity of their natal stream may be accomplished with only slight homeward orientation. Five assumptions in this important paper are here reexamined to determine the validity of the original conclusion in light of current knowledge of Pacific salmon biology. It appears that assumptions concerning swimming speed, duration of migration, and return success were incorrect. These errors resulted in substantially underestimating the extent of salmon homeward orientation. Thus, contrary to the original conclusion, any hypothesis concerning the high seas migrations of salmon must explain the strong orientation of these fishes in the open ocean.
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 callMore From: Canadian Journal of Fisheries and Aquatic Sciences
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.
