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The Upper Skagit tribe includes descendants from 11 villages in the Upper Skagit and Samish watersheds. Although the tribe signed the treaty of Point Elliott, no reservation was established, and members refused to leave the region. Today, the tribe's population is scattered among different towns, including Sedro-Woolley, Mount Vernon, and Newhalem. Upper Skagit Area of Concern: The S...

A 2023 report from the Puget Sound Ecosystem Monitoring Program presents an overview of selected recent monitoring and research activities focused on toxic contaminants in the Salish Sea. 

The Shoreline Monitoring Toolbox standardizes approaches to tracking the status and health of shoreline environments in Puget Sound.

An independent review conducted by the Puget Sound Institute (PSI) is featured in findings by the Environmental Protection Agency and the Washington State Department of Ecology that there is currently “no compelling evidence” that humans are the cause for recent trends in declines in dissolved oxygen in Hood Canal.

The marine habitat of Puget Sound can be divided up into nearshore, benthic (associated with the sea floor), and pelagic (open water) habitats. This article focuses on the pelagic habitat within the Puget Sound. This article was prepared as part of the 2015 Puget Sound Fact Book produced by the University of Washington Puget Sound Institute. 

Scientists argue that herring managers should take a tip from stock market investors and diversify the population’s “portfolio.” 

The Quinault Indian Nation includes the Quinault and Queets tribes, as well as descendants of five other coastal tribes. The tribe's headquartes are located in Taholah, Washington. Quinault Area of Concern: The Quinault Nation focuses their restoration efforts in the Chehalis River basin, one of the largest in Washington State. Over 81% of the land is forested, and most is privately ...

This article originally appeared in the State of Washington Bat Conservation Plan. Further information is available from the Washington Department of Fish and Wildlife.

A 2025 report from the University of Washington Puget Sound Institute compiles a series of articles and overviews describing the impacts of nutrients on dissolved oxygen in Puget Sound.

A 2014 report from the University of Washington Puget Sound Institute identifies 23 potential indicators of human wellbeing in the Puget Sound region. These indicators will inform the adoption of Human Quality of Life "Vital Signs" by the Puget Sound Partnership.