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A harbor porpoise surfing in a boat wake in Burrows Pass, off Fidalgo Island, WA. Photo: Copyright Cindy R. Elliser, Pacific Mammal Research http://pacmam.org/
A harbor porpoise surfing in a boat wake in Burrows Pass, off Fidalgo Island, WA. Photo: Copyright Cindy R. Elliser, Pacific Mammal Research http://pacmam.org/

Harbor porpoises become increasing players in the Puget Sound food web

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An explosive growth in the number of harbor porpoises in Puget Sound could be creating a ripple effect through the food web, with potential consequences for salmon, seals and even orcas. PSI senior writer Christopher Dunagan reports in Salish Sea Currents.