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Sep 05, 2017

Water sampling and testing for formaldehyde at Northwest fish hatcheries

Formaldehyde is often used to control parasites on hatchery salmon and trout. The U.S. Environmental Protection Agency and the Washington State Department of Ecology conducted a joint study of formaldehyde concentrations in effluent from hatcheries in the Pacific Northwest. 
By Prepared for the EPA Region 10 Office of Water and Watersheds
Jul 06, 2013

Silver-haired Bat (Lasionycteris noctivagans)

This article originally appeared in the State of Washington Bat Conservation Plan. Further information is available from the Washington Department of Fish and Wildlife.
By Gerald Hayes and Gary J. Wiles
Feb 15, 2016

Food webs

The health of an ecosystem is tied closely to the health of its food webs. This article provides an overview of the concept, origin, and characteristics of a food web and how predator and prey relationships are shaped in the Salish Sea.  
By Eric Wagner
Jun 18, 2012

King County riparian habitat

Riparian habitats are often characterized by particular trees and shrub species that line the banks of most rivers and streams in the lowlands and foothills of King County.
By King County. 2007. King County biodiversity report. King County Water and Land Resources Division, Department of Natural Resources and Parks. Prepared for International Council for Local Environmental Initiative
Oct 16, 2013

Mardon Skipper (Polites mardon)

This article was originally published by the Washington Department of Fish and Wildlife as part of its annual report Threatened and Endangered Wildlife in Washington.
By Washington Department of Fish and Wildlife. Species accounts were compiled by Derek Stinson, Gary Wiles, Gerald Hayes, Jeff Lewis, Lisa Hallock, Steve Desimone, and Joe Buchanan.
Oct 02, 2015

Puget Sound Fact Book

The Puget Sound Fact Book brings together statistics and other information about the health and makeup of the Puget Sound ecosystem. Areas of focus include climate change, geography, water quality, habitats, human dimensions and regional species. The fact book was prepared for the Encyclopedia of Puget Sound with funding from the Environmental Protection Agency and the Puget Sound Partnership.
By UW Puget Sound Institute and contributors
Sep 21, 2011

10. Bald eagles

photo by Steve Hillebrand, courtesy of the U.S. Fish and Wildlife Service.BackgroundBald eagles (Haliaeetus leucocephalus) are present year-round throughout most parts of Washington with the highest densities in the Puget Sound region. Individuals occur in the Puget Sound basin as migrants, winter residents and members of the breeding population. They are often associated with shoreli...
Feb 03, 2026

How salmon shape regional identity and conservation in Puget Sound

A 2026 paper in the journal Environmental Management explores how salmon contribute to "sense of place" and regional identity among Puget Sound residents. The paper was produced by researchers at the Washington Department of Fish and Wildlife.
By Article summary by Sylvia Kantor; journal article by David Trimbach and Rebecca Niggemann
Mar 23, 2013

Native shellfish in nearshore ecosystems of Puget Sound

This is the executive summary from a technical report produced for the Puget Sound Nearshore Partnership on Valued Ecosystem Components (VEC). The entire document is included as a PDF with this summary.
By Dr. Megan Dethier
Sep 15, 2025

Bull trout and estuary use in Puget Sound

The following article describes how both adult and juvenile bull trout use estuaries in Puget Sound and includes text from two previously published overviews on the subject by University of Washington biologist Thomas P. Quinn.
By Thomas P. Quinn