Computer modelling points to age specific ocean mortality as a reason chinook salmon returning to Alaska rivers are trending younger and smaller. As KUAC’s Dan Bross reports, a recently published study points to the loss of 3-year-old fish, and the possibility the larger chinook may be more targeted by salmon sharks and other marine predators.
Study Probes Why Chinook Salmon Are Trending Younger and Smaller
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Kousei Martin Perales
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University of Alaska Fairbanks