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As a key food supply declines, the endangered population of Southern Resident killer whales, known to frequent the Salish Sea off the coasts of Washington and British Columbia, is spending far less time in that region, a new study shows.The Salish Se
As a key food supply declines, the endangered population of Southern Resident killer whales, known to frequent the Salish Sea off the coasts of Washington and British Columbia, is spending
Finding fewer Chinook salmon to eat, the endangered southern resident orcas are visiting the San Juan Islands, their traditional summer home, less often.
Researchers documented a 75% drop in reported sightings of the southern resident orcas from 2004 to 2020 around the San Juan Islands. That corresponded with a 50% decline in available Chinook, the orcas’ favorite food, from British Columbia’s Fraser River.
Research by Oregon State University finds that as the number of salmon in the Salish sea declines, the Southern Resident killer whales are spending less time in that region.