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Salmon May Lose the Ability to Smell Danger as Carbon Emissions Rise

By Michelle Ma | University of Washington on Dec 19, 2018   At Sea, Featured, Science/Education  

Salmon May Lose the Ability to Smell Danger as Carbon Emissions Rise

[dropcap]T[/dropcap]he ability to smell is critical for salmon. They depend on scent to avoid predators, sniff out prey and find their way home at the end of their lives when they return to the streams where they hatched to spawn and die. New research from the University of Washington and NOAA Fisheries’ Northwest Fisheries Science […]

Sockeye Carcasses Tossed on Shore over Two Decades Spur Tree Growth

By Michelle Ma | University of Washington on Oct 26, 2018   Featured, The Arctic and Alaska Science  

Sockeye Carcasses Tossed on Shore over Two Decades Spur Tree Growth

Hansen Creek, a small stream in southwest Alaska, is hard to pick out on a map. It’s just over a mile long and about 4 inches deep. Crossing from one bank to the other takes about five big steps. Yet this stream is home to one of the most dense sockeye salmon runs in Alaska’s […]

UW: Past Warm Period Polar Bear Strategy won’t Suffice this Time

By Michelle Ma | University of Washington on Oct 9, 2018   The Arctic and Alaska Science  

UW: Past Warm Period Polar Bear Strategy won’t Suffice this Time

Polar bears likely survived past warm periods in the Arctic, when sea ice cover was low, by scavenging on the carcasses of stranded large whales. This food source sustained the bears when they were largely restricted to land, unable to roam the ice in search of seals to hunt. A new study led by the University of […]

Largest Chinook Salmon Disappearing from West Coast

By Michelle Ma | University of Washington on Feb 27, 2018   At Sea, Featured  

Largest Chinook Salmon Disappearing from West Coast

The largest and oldest Chinook salmon — fish also known as “kings” and prized for their exceptional size — have mostly disappeared along the West Coast. That’s the main finding of a new University of Washington-led study published Feb. 27 in the journal Fish and Fisheries. The researchers analyzed nearly 40 years of data from hatchery and […]

Beluga Whales Dive Deeper, Longer to Find Food in Arctic

By Michelle Ma | University of Washington on Feb 21, 2018   Featured, Science/Education, The Arctic and Alaska Science  

Beluga Whales Dive Deeper, Longer to Find Food in Arctic

Reductions in sea ice in the Arctic have a clear impact on animals such as polar bears that rely on frozen surfaces for feeding, mating and migrating. But sea ice loss is changing Arctic habitat and affecting other species in more indirect ways, new research finds. Beluga whales that spend summers feeding in the Arctic […]

When to Fish: Timing Matters for Fish that Migrate to Reproduce

By Michelle Ma | University of Washington on Nov 20, 2017   At Sea, Featured, Science/Education  

When to Fish: Timing Matters for Fish that Migrate to Reproduce

It’s no secret that human activities affect fish, particularly those that must migrate to reproduce. Years of building dams and polluting rivers in some regions have left fish such as salmon struggling to return to their home streams and give birth to the next generation. A new University of Washington study points to yet another […]

Old Fish Few and Far Between under Fishing Pressure

By Michelle Ma | University of Washington on Sep 14, 2017   At Sea, Science/Education  

Old Fish Few and Far Between under Fishing Pressure

Like old-growth trees in a forest, old fish in the ocean play important roles in the diversity and stability of marine ecosystems. Critically, the longer a fish is allowed to live, the more likely it is to successfully reproduce over the course of its lifetime, which is particularly important in variable environmental conditions. A new study by […]

Arctic Sea Ice Loss Impacts Beluga Whale Migration

By Michelle Ma | University of Washington on Jan 12, 2017   Featured, Science/Education, The Arctic and Alaska Science  

Arctic Sea Ice Loss Impacts Beluga Whale Migration

  The annual migration of some beluga whales in Alaska is altered by sea ice changes in the Arctic, while other belugas do not appear to be affected. A new study led by the University of Washington finds that as Arctic sea ice takes longer to freeze up each fall due to climate change, one […]

All Polar Bears Across the Arctic Face Shorter Sea Ice Season

By Michelle Ma | University of Washington on Sep 14, 2016   Featured, Science/Education, The Arctic and Alaska Science  

All Polar Bears Across the Arctic Face Shorter Sea Ice Season

  It’s no secret that Arctic sea ice is melting. Polar bears, the poster child for climate change, are among the animals most affected by the seasonal and year-to-year changes in Arctic sea ice, because they rely on this surface for essential activities such as hunting, traveling and breeding. A new University of Washington study, […]

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