Factors Influencing Run Strength of Upper Yukon River Chinook Salmon (Oncorhynchus tshawytscha)
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Pacific salmon (Oncorhynchus spp.) are anadromous fish distributed around the Pacific Ocean. Pacific salmon generate numerous ecosystem services related to the nutrition, livelihoods and culture of humans. Widespread declines in this vital resource over the past century and specifically the last few decades have prompted efforts to identify the drivers of and remedy Pacific salmon decline. I used quasi-Poisson Generalized Linear Models (GLMs) to quantify the influence of multiple environmental and anthropogenic factors on the run size of Yukon River Chinook Salmon (Oncorhynchus tshawytscha) that spawn upstream of Whitehorse, Yukon, Canada. The main predictor of population variation was sea surface temperature, discernable during both marine entry and exit. Whitehorse Chinook Salmon are a small, edge population and my findings suggest that they may experience exacerbated effects of future perturbations to North Pacific and global climate compared to other populations of the same species.
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Copyright © 2020 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2020
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sebes-factorsinfluencingrunstrengthofupperyukon.pdf | 2023-05-05 | Public | Download |