62 news posts related to Freshwater

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Chemical tags in ear bones track Alaska’s Bristol Bay salmon

Scientists from Aquatic and Fishery Sciences and other institutions are learning a lot about where Chinook salmon swim in Alaska’s Bristol Bay region through chemical signatures recorded in their ear bones. Similar to a tree’s growth rings, this bone—called an otolith—accumulates layers as the fish grows. Acting as a little recorder, each layer of the otolith corresponds to the unique chemical signatures of the waters in which they swam. 

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UW ecologist and citizen scientists lead the charge against invasive crayfish

There’s no time­ like the present for Pine Lake residents—an invasive species of crayfish has taken hold in their backyard and community members are mobilizing to give them the boot. Even though it means setting aside several hours a week during western Washington’s best weather months, these citizen scientists swap their fishing poles for cage traps, hiking boots for clipboards, and swimsuits for scientific instruments to restore the lake’s ecosystem. 

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UW raising funds to replace research vessel

Students after a research cruise on the Barnes.

The College of the Environment’s School of Oceanography and a network of partners are working to raise funds to replace the aging and soon-to-be decommissioned Clifford A. Barnes. The research vessel is nearly 50 years old, and has limited capabilities to help scientists and students really understand what’s going on in our local waters–like the Puget Sound, Salish Sea, Lake Washington, and the Columbia River. 

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