Survival of Orcas and Chinook Seasons in Pacific Northwest Depend on Hatcheries
A recent University of Washington study about killer whales could offer another clue to the wellbeing of the southern resident killer whales that live in Puget Sound and the Pacific Ocean off the coast of Washington state, often near the mouth of the Columbia River.
According to the study, killer whales along the coast of southern and southeast Alaska, British Columbia and Washington eat more than 2.5 million adult Chinook salmon each year.
With the exception of the southern resident population, which is listed as endangered by the...
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