Chinook Salmon Use of Eelgrass Habitats


February 2019


General public, partner agencies, biologists, and ecologists

Base Data

Data collected in 2008-2010 to evaluate juvenile salmon and forage fish use of eelgrass on the Skagit River Delta, Washington State, USA


Western Fisheries Science News

Launch Eelgrass App

Interact with data from five null hypotheses concerning abundance and body size of Chinook Salmon, Pacific Herring, Surf Smelt, and Shiner Perch in relation to eelgrass and water column properties in this interactive visualization tool.

The degree to which eelgrass on river deltas provides critical habitat for estuarine fishes, especially out‐migrating juvenile salmon, is an important scientific and management issue that bears on efforts to conserve and restore both eelgrass and fish. In a journal article published in Marine and Coastal Fisheries, USGS scientists reported on spatiotemporal variation in abundance and body size of juvenile Chinook Salmon and three forage fish species in relation to eelgrass on a large river delta in Puget Sound and consider how diking and river channelization potentially influenced eelgrass use by these fish. Fish–eelgrass associations were unique for each species. Puget Sound Chinook Salmon are currently listed as threatened under the U.S. Endangered Species Act.

This web application allows users to view, download, and interact with the data used for the journal article.

Top of the Eelgrass web page

Methods section of the Eelgrass webpage

Hypotheses one and two from the Eelgrass webpage