Northwest Fisheries Science Center

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Document Type: Chapter or Section
Center: NWFSC
Document ID: 9147
Type of Book: Technical
Section or Chapter Title: Effects on benthic communities, water quality, and turbidity
Book Title: Impact of propeller agitation dredging on fish and invertebrates at Chinook Channel in the Columbia River estuary
Author: Theodore H. Blahm, Robert J. McConnell, Lawrence G. Davis
Publication Year: 1979
Publisher: Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon
Volume: 2
Number of Volumes: 3
Pages: 46-60
Keywords: dredging, benthic invertebrates, water quality, turbidity,
Abstract:

This publication is a compilation of three separate reports which collectively evaluate and describe the effectiveness and aquatic impact of propeller wash agitation dredging at Chinook Channel, Washington, during March and April 1976.   Part 2 describes the dredging operation, hydrographic surveys, tides and currents, sediment sampling, and the advantages and disadvantages found with this method of dredging.

Section I, by the Hammond Field Facility of the National Marine Fisheries Service, documents the changes in epibenthic estuarine fish and invertebrates from the propeller agitation dredging.

Section II, by the Prescott Field Facility of the National Marine Fisheries Service, describes the effect of agitation dredging on benthic communities, water quality, and turbidity at Chinook Channel.

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