Petersburg Pilot -

Whale Watching and LeConte Glacier Tours based out of Petersburg Alaska

Endangered orcas compete with seals, sea lions for salmon


November 23, 2017

Pilot File Photo

Killer whales, also known as Orcas, have a diverse diet, although individual populations often specialize in particular types of prey.

SEATTLE (AP) - Harbor seals, sea lions and some fish-eating killer whales have been rebounding along the Northeast Pacific Ocean in recent decades. But that boom has come with a trade-off: They're devouring more of the salmon prized by a unique but fragile population of endangered orcas.

Competition with other marine mammals for the same food may be a bigger problem than fishing, at least in recent years, for southern resident killer whales that spend time in Washington state's Puget Sound, a new study suggests.

Researchers used models to estimate that from 1975 to 2015, marine mammals al...

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