|
|
|
| | |
|
|
MetaData for Klamath Mountains Province Steelhead Project, 2001-02 Annual Report Report Number: OPSW-ODFW-2004-08
Klamath Mountains Province Steelhead Project, 2001-02 Annual Report Report Number: OPSW-ODFW-2004-08
Identification Information
-
Citation
- Originator: Satterthwaite, T.D.
- Publish Date: March 2004
- Online Link: None
- BPA Project #:
-
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
-
Description
- Abstract: The steelhead supplement to the Oregon Plan for Salmon and
Watersheds (OSPW) is intended to maintain wild steelhead
populations in Oregon at sustainable and productive levels that
provide substantial environmental, cultural, and economic
benefits. The OSPW attempts to better define "sustainable and
productive" by committing the Oregon Department of Fish and
Wildlife (ODFW) to establish "Population Health Goals" for each
Evolutionary Significant Unit (ESU) of wild steelhead within the
state. In addition, section ODFW IB1S of the plan calls for
ODFW to assess adult escapement and juvenile production of wild
steelhead in each ESU.
The National Marine Fisheries Service identified seven ESUs
for steelhead in Oregon and concluded that steelhead produced in
coastal basins between Cape Blanco in southern Oregon and the
Klamath River Basin in northern California constitutes one ESU.
This area closely corresponds to the geologic boundaries of the
Klamath Mountains Province (KMP). Steelhead in the KMP differ
from those in adjoining areas because of distinctive life
history and genetic characteristics (Busby et al. 1994).
Primary differences in life history parameters have been
identified for wild KMP steelhead. Summer steelhead and winter
steelhead differ in time of return as adults, tendency to return
to fresh water on a false spawning migration (the "half-pounder"
run), age at ocean entry, growth rate and migration patterns of
juveniles in fresh water (ODFW 1990; ODFW 1994). As a result of
these differences, separate health goals seem warranted for
summer and winter steelhead populations. Winter steelhead
inhabit streams throughout the KMP, while summer steelhead are
found only in a portion of the Rogue River Basin. However, the
distribution of summer and winter steelhead overlap in major
areas of the Rogue River Basin (Everest 1973) and, as juveniles
of the respective races cannot be differentiated, some
population health goals have to apply to both races.
The status of wild steelhead in the Klamath Mountains
Province ESU is not readily apparent from historic sources of
information. Uncertainty about resource status, coupled with a
comprehensive conservation plan developed by Oregon and the
termination of wild fish harvest in almost all KMP streams, lead
the National Marine Fisheries Service (NMFS), in 1998, to defer
a listing of KMP steelhead under the Endangered Species Act.
On 30 March, 2001, NMFS announced that, after a review of
new information, that an Endangered Species Act listing was not
warranted for KMP steelhead. In 2002, ODFW adopted new methods
to monitor steelhead populations on the Oregon coast. Allied
with the decision, ODFW decided to terminate the KMP steelhead
project. Consequently, this report presents findings from the
third, and final, year of the project.
The goal of the project was to develop and implement
assessment methods to determine the status of wild steelhead in
the Oregon portion of the KMP. Project objectives included (1)
develop population health goals and allied monitoring methods
and (2) determine resource status in relation to health goals
Satterthwaite (2002a). Directed sampling began in 1999 and
findings from the first two years of the project were reported
by Satterthwaite (2002b) and Satterthwaite (2003).
-
- Purpose:
-
- Time Period of Content:
- Geographic Extent: Klamath Mountain Province, Cape Blanco
- 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: Field attribute information is available in the attached file(s).
Is a physical copy maintained for reference at Headquarters?
Yes
Files
File Name |
File Type Category |
File Uploaded |
File Description |
|
2004-08.pdf
|
Document File |
3/26/2018 12:00:44 PM |
|
|
|
|
|
|
|