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418 posts in Research

From tropics to temperate: The shifting breeding ranges of seabirds amid climate change

A bird is pictured from the side/underside view, flying over the ocean. The bird has a white head and underside, with black/brown wings.

Across the globe, species are shifting their ranges in response to environmental changes driven by climate change. However, seabirds face distinct challenges in adapting to these shifts. Amelia DuVall, PhD candidate at SAFS and member of the Washington Cooperative Fish and Wildlife Research Unit, recently published a paper reporting on the breeding range expansion of two pantropical seabird species—the Brown Booby and the Blue-footed Booby.

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Where are we now? Reflections on Tribal Fisheries and Co-Management 50 years after the Boldt Decision

Three people sit at the front of a room, holding microphones

50 years on from the Boldt Decision, SAFS held a one-day Bevan Symposium reflecting on Tribal fisheries, their co-management since this landmark decision, and what the next 50 years will look like for Washington fisheries. Centering on Tribal voices, the symposium heard from Tribal leaders, elders, scientists, artists and lawyers, through a series of panels and Q&A discussions.

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One or many? Exploring the population groups of the largest animal on Earth

A large blue whale swims through blue water, with its blowhole visible.

Hunted nearly to extinction during 20th century whaling, the world’s largest animal, the Antarctic blue whale, went from a population size of roughly 200,000 to little more than 300. The most recent abundance estimate in 2004 put Antarctic blue whales at less than 1% of their pre-whaling levels. But is this population recovering? Is there just one population of Antarctic blue whales, or multiple? Why do these questions matter for conservation? PhD student, Zoe Rand, is tackling these questions in a new study.

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Paws of polar bears sustaining ice-related injuries in a warming Arctic

Three polar bears walk across an icy landscape with paw prints zig-zagging across.

Polar bears in some parts of the high Arctic are developing ice buildup and related injuries to their feet, apparently due to changing sea ice conditions in a warming Arctic. While surveying the health of two polar bear populations, researchers led by Kristin Laidre from UW SAFS, found lacerations, hair loss, ice buildup and skin ulcerations primarily affecting the feet of adult bears as well as other parts of the body.

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Bitter crabs…attitude problem or parasitic infection?

A needle is inserted into the underside of a pink-colored crab.

Bitter crab syndrome might sound like an attitude problem, but it’s actually a condition faced by two very valuable fisheries in Alaska: snow crabs and Tanner crabs. So-called for the bitter flavor of crab meat in infected crabs, bitter crab syndrome (BCS) is caused by a parasitic dinoflagellate of the genus Hematodinium and infects a number of crustacean species around the globe. We spoke to SAFS grad student, Aspen Coyle, about her research.

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Clicks not bricks: A global assessment of the online trade of ornamental crayfish

A blue crayfish pictured in a small aquarium with rocks.

They may be small, but crayfish are mighty in other ways, one of them being invasive risk in areas where they are not natively found. Crayfish are increasingly being traded online for ornamental purposes, such as aquariums, and in a new study led by SAFS Professor Julian Olden, the first ever global assessment of the online trade in and associated invasion risk of freshwater crayfishes was conducted.

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