PCBs in fish remain steady while other toxics decline

English Sole (Parophrys vetulus) in Puget Sound. Photo: biodiversityguy https://biodiversityguy.smugmug.com/Underwater/Reference-List-Photos-of/i-3GgD5hB/A

English Sole (Parophrys vetulus) in Puget Sound. Photo: biodiversityguy https://biodiversityguy.smugmug.com/Underwater/Reference-List-Photos-of/i-3GgD5hB/A

A new study shows a surprising decline in some toxic chemicals in Puget Sound fish, while levels of PCBs increased in some cases. Scientists say the study shows that banning toxic chemicals can work, but old contaminants remain a challenge as they continue to wash into Puget Sound.

Read our story in Salish Sea Currents. 

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Advances in technology help researchers evaluate threatened Puget Sound steelhead

A steelhead (Oncorhynchus mykiss) in the Cascade River, WA, 2014. Photo: © Morgan Bond http://www.morganhbond.com/

A steelhead (Oncorhynchus mykiss) in the Cascade River, WA, 2014. Photo: © Morgan Bond http://www.morganhbond.com/

New, smaller acoustic tags will allow scientists to track steelhead migrations in Puget Sound in ways that were once impossible. Will this new technology provide answers to the mysterious decline of these now-threatened fish?

Read the article in Salish Sea Currents.

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