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MetaData for Spring Chinook Salmon in the Willamette and Sandy Rivers, Progress Reports 2002, F-163-R-07
Spring Chinook Salmon in the Willamette and Sandy Rivers, Progress Reports 2002, F-163-R-07
Identification Information
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Citation
- Originator: Schroeder, R.K., K.R. Kenaston, R.B. Lindsay
- Publish Date: 2002
- Online Link: None
- BPA Project #:
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Contact Information
- Agency: Oregon Department of Fish and Wildlife
- Name: Cedric Cooney
- Job Position: Natural Resources Data and Systems Manager
- Telephone: 503-947-6094
- E-Mail Address: cedric.x.cooney@odfw.oregon.gov
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Description
- Abstract: The Willamette and Sandy rivers support intense recreational fisheries for spring
chinook salmon (Oncorhynchus tshawytscha). Fisheries in these basins rely primarily
on annual hatchery releases of 5–8 million juveniles. Hatchery programs exist in the
McKenzie, Middle Fork Willamette, North and South Santiam, Clackamas, and Sandy
rivers mainly as mitigation for dams that blocked natural production areas. Some
natural spawning occurs in most of the major basins and a few smaller tributaries
upstream of Willamette Falls.
The Oregon Fish and Wildlife Commission adopted the Wild Fish Management
Policy to reduce adverse impacts of hatchery programs on wild native stocks (ODFW
1992a). The main goal of the policy is to protect the genetic diversity of these stocks
recognizing that genetic resources are a major component, not only in sustaining wild
stocks, but also in perpetuating hatchery programs and the fisheries they support.
In the past, hatchery programs and fish passage issues were the focus of spring
chinook salmon management in the Willamette and Sandy basins. Limited information
was collected on the genetic structure among basin populations, on abundance and
distribution of natural spawning, on rearing and migrating of juvenile salmon, or on
strategies for reducing risks that large hatchery programs pose for wild salmon
populations. This study is being implemented to gather this information. A schematic of
the study plan is shown in APPENDIX A.
We conducted work in the main-stem Willamette River at Willamette Falls, and in
the Middle Fork Willamette, McKenzie, North Santiam, South Santiam, Molalla,
Clackamas, and Sandy rivers in 2002. Basin descriptions and background information
on management and fish runs can be found in subbasin plans developed by the Oregon
Department of Fish and Wildlife (ODFW 1988, ODFW 1992b, ODFW 1992c, and ODFW
1996). Task headings below cross reference the study plan outlined in APPENDIX A.
This report covers tasks that were worked on in late 2001 through early fall 2002.
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- Purpose:
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- Time Period of Content: 1996-2002
- Geographic Extent: Willamette, McKenzie, Santiam, Clackamas, Molalla, Sandy Rivers
- Status: Final
- Use Constraints:
- Format: PDF File
Data Quality Information
- Lineage-Source:
Data Information
- No data information was supplied.
Entity and Attribute Information
- Attributes Description:
Is a physical copy maintained for reference at Headquarters?
Yes
Files
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