Benthic invertebrates and sediment characteristics in and adjacent to a proposed channel widening area (river mile 31-34), Columbia River estuary

McCabe, George T.; Hinton, Susan A.

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Benthic invertebrates and sediment characteristics in and adjacent to a proposed channel widening area (river mile 31-34), Columbia River estuary

1998
By McCabe, George T. ; Hinton, Susan A.

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Personal Author:

McCabe, George T. ; Hinton, Susan A.

McCabe, George T. ; Hinton, Susan A. Less -
Corporate Authors:

Northwest Fisheries Science Center (U.S.). Fish Ecology Division. ; United States. Army. Corps of Engineers. Portland District.

Northwest Fisheries Science Center (U.S.). Fish Ecology Division. ; United States. Army. Corps of Engineers. Portland District. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) Less -
Description:

In 1996 and 1997, the National Marine Fisheries Service (NMFS) studied the benthic invertebrates and sediments in subtidal areas between River Mile 31 and 34 (River Kilometer 50 and 55) in the Columbia River estuary in cooperation with the Portland District of the U.S. Army Corps of Engineers (COE). The COE is considering widening the navigation channel in this reach of the estuary by up to 91 m (300 ft). The proposed widening project could impact an area 183 m (600 ft) wide by over 4 km (2.5 mi) long. Benthic invertebrates, particularly the amphipod Corophium salmonis, found in intertidal and subtidal habitats of the Columbia River estuary are seasonally important in the diets ofjuvenile salmonids. The goal of the study was to collect baseline benthic invertebrate and sediment data in and adjacent to the proposed channel widening area prior to any habitat modification.
Keywords:

[+]

Aquatic Invertebrates Benthos Observations River Sediments
Format:

PDF
Document Type:

Non-series Report
Funding:

Contract no. E96970007
Place as Subject:

Columbia River Estuary (Or. and Wash.)
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:e8cdabd8e3bd04e8289306213bf97c8fd75663f33747cebcd1af7ae07252be24
Download URL:

https://repository.library.noaa.gov/view/noaa/50441/noaa_50441_DS1.pdf
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Benthic invertebrates and sediment characteristics in and adjacent to a proposed channel widening area (river mile 31-34), Columbia River estuary

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