Salmonids

Fish in the family Salmonidae (salmon, trout, and charr) are unique in their cultural, economic and ecological role in Puget Sound. Because they utilize a very wide range of aquatic habitat types throughout their life history, they play potentially integral roles in the upland freshwater, nearshore and pelagic marine ecosystems and food webs of Puget Sound. They also provide key trophic links between habitats through their migratory behavior. While there is much variation in the behavior and ecology within and among the different salmonid species in Puget Sound, they typically use freshwater habitats to spawn, after which juveniles emerge and eventually migrate to nearshore estuaries or directly to marine pelagic habitats. The watersheds and nearshore habitats of Puget Sound currently support 8 species of salmon, trout, and charr (NOAA 2007), four of which are listed as Threatened under the Endangered Species Act (ESA). These are Chinook salmon (Oncorhynchus tshawytscha), chum salmon (O. keta), bull trout (Salvelinus confluentus) and steelhead (O. mykiss).

Puget Sound salmon:

Chinook salmon (Oncorhynchus tshawytscha)

Chum salmon (Oncorhynchus keta)

Sockeye salmon (Oncorhynchus nerka)

Pink salmon (Oncorhynchus gorbuscha)

Coho salmon (Oncorhynchus kisutch)

Puget Sound trout

Steelhead (Oncorhynchus mykiss)

Cutthroat trout (Oncorhynchus clarki clarki)

Puget Sound charr

Bull trout (Salvelinus confluentus

-- Source: Puget Sound Science Review

Overview

Fish in the family Salmonidae (salmon, trout, and charr) play potentially integral roles in the upland freshwater, nearshore and pelagic marine ecosystems and food webs of Puget Sound.

Chum salmon (Oncorhynchus keta). Image courtesy U.S. Fish and Wildlife Service.

Related Articles

A chemical found in tires is leading to the deaths of untold numbers of coho salmon in Puget Sound every year. Chemical companies are searching for an alternative but say the unique chemistry and function of 6PPD are major challenges. This article is part one of a three-part series.
Formal legal processes are underway in Washington and California to seek alternatives to the highly toxic chemical in tires. We continue with part two of our three-part series on efforts to find a replacement for 6PPD.

With a worldwide market valuation somewhere around $1 billion a year for the single chemical 6PPD, tire companies and their chemical suppliers are working overtime to find a safe and effective replacement for the tire additive. The financial stakes are enormous, since virtually every tire on the market today contains 6PPD.

“The environmental concerns surrounding 6PPD have spurred significant R&D investment in next-generation antiozonants,” states Intelmarket Research, a market-analysis company based in India. “Several manufacturers are developing modified PPD formulations with reduced environmental impact while maintaining performance characteristics. Early adopters of such technologies may gain first-mover advantages in positioning

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.
Untold numbers of hatchery fish may be dying from exposure to tire-contaminated runoff, according to a new study.
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.