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Historical changes in the Columbia River estuary based on sediment cores: feasibility studies

By:
, , , , , , , and

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Abstract

The importance of the Columbia River estuary to salmon, other fishes, migratory birds, and other species is fairly well established. Relatively little is known, however, about long-term, historic variations in biological processes and conditions within the estuary. For example, have conditions varied greatly with climatic regime shifts and how has dam construction on the Columbia River influenced biological communities over time? We conducted a feasibility study to see if sediment cores from the estuary could be aged and whether biological or contaminant indicators could be identified. Such information could be useful in understanding long-term environmental variation and in restoration studies.

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Unnumbered Series
Title:
Historical changes in the Columbia River estuary based on sediment cores: feasibility studies
Year Published:
2003
Language:
English
Publisher:
U.S Geological Survey
Contributing office(s):
Western Fisheries Research Center
Description:
73 p.
Country:
United States
State:
Oregon, Washington
Other Geospatial:
Columbia River