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Environment

Salmon conservation shouldn’t narrowly focus on managing flows in streams and rivers or on preserving only places that currently have strong salmon runs. Instead, watersheds need a good mix of steep, cold-running streams and slower, meandering streams of warmer water to keep options open for salmon adapted to reproduce better in one setting than the other, new research shows. Preserving that sort of varied landscape serves not just salmon, it provides an all-summer buffet that brown bears, gulls and other…

When a University of Washington researcher listened to the audio picked up by a recording device that spent a year in the icy waters off the east coast of Greenland, she was stunned at what she heard: whales singing a remarkable variety of songs nearly constantly for five wintertime months. Listen to the bowheads repeat their other-worldly song as they cross the Fram Strait. Bowhead whale song 1 Bowhead whale song 2 Kate Stafford, an oceanographer with UW’s Applied Physics…

Not having enough Chinook salmon to eat stresses out southern resident killer whales more than having boatloads of whale watchers nearby, according to hormone levels of whales summering in the Salish Sea. In lean times, however, the stress normally associated with boats becomes more pronounced, further underscoring the importance of having enough prey.