MetaData for Angler Surveyor Procedures Manual 2004; Willamette Salmonid Inventory Project
Angler Surveyor Procedures Manual 2004; Willamette Salmonid Inventory Project
Identification Information
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Citation
- Originator: Oregon Department of Fish and Wildlife
- Publish Date: 2004
- Online Link:
None
- BPA Project #:
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Contact Information
- Agency: Oregon Department of Fish and Wildlife
- Name: Michelle Jones
- Job Position: Quantitative Fisheries Scientist
- Telephone: 503-947-6252
- E-Mail Address: Michelle.K.Jones@odfw.oregon.gov
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Description
- Abstract: The Willamette Salmonid Inventory Project is charged with the task of monitoring the status of
naturally produced and hatchery produced salmonid stocks. One important aspect of this
monitoring effort is an estimate of fish that are caught in recreational fisheries. State and
Federal fishery managers use the results of these surveys to manage Oregon's fisheries
resources.
The goal of the river creels is to estimate effort and catch of marked and unmarked spring
chinook, steelhead, and young salmonids, including catchable rainbow, cutthroat and juvenile
chinook and steelhead. The basic approach is a roving creel in which the sampler travels up
and down the river interviewing bank anglers and boat anglers as they are encountered. The
sampler queries anglers about catch numbers, catch composition, time spent fishing and other
auxiliary information. At assigned times during the sampled day; the sampler travels the length
of the river counting boat trailers (without boats), individual bank anglers at some locations, and
cars at other locations. The goal of these counts is to estimate the number of people fishing at
a given time.
The goal of the Foster Reservoir creel survey is to estimate angler effort and catch of juvenile
winter steelhead and trout throughout the year. The fishery has been surveyed at a reduced
level of sampling effort during the winter and is now ramped up to a full time sampler. The basic
approach is similar to that for the river creels.
The results of these surveys are used in a variety of ways:
1. They allow us to assess how well the hatchery programs are serving the public by giving
an estimate of how many hatchery-produced fish are caught.
2. By combining creel data with counts at fish ladders and hatchery traps, we can construct
a more reliable estimate of how many fish return to sub-basins of the Upper Willamette.
3. Creel data help us to evaluate the effectiveness of the hatcheries’ recycling programs.
4. Data on how many naturally-produced (unmarked) fish are caught and released allow us
to estimate mortality for naturally-produced fish.
5. Coded wire tag data are also used in making estimates of run size, and give information
on the origin and stray rates of hatchery fish in the fishery.
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- Purpose:
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- Time Period of Content: 2004
- Geographic Extent: Willamette River Basin
- 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
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