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Cedar Creek Smolt Trap

Data Categories Outmigrant counts
Population estimates
Daily counts
Recapture rates
Fish distribution
Dates of Data March 1998 TO July 2006
Data Set Status Complete
Data Set Update Schedule Unknown
Date Data Set Published on StreamNet Data Store 3/15/2007
Project Name & Number
Purpose of Data Set Purpose provided in Abstract
Summary / Abstract Data collected from a rotary screw trap on Cedar Creek, a tributary to the North Fork of the Lewis River in Cowlitz County. Information collected is species, counts, and lengths. Marks are then given to most fish, which are taken up stream to be released. Recapture rate is then calculated when recaptures occur, to estimate populations of coho, steelhead, sea-run cutthroat and chinook species. The MS-Access database contains the raw data, the following excel spreadsheets and word documents contain population estimates (if any completed), a tally of fish caught and recaptured, and whether fish were able to retain the marks they were given. Trapping season runs the end of March to approximately July for each year, trapping first started in 1998.
Broad Biological Groups Fishes
Taxa Chinook salmon (Oncorhynchus tshawytscha)
Coho salmon (Oncorhynchus kisutch)
Winter steelhead (Oncorhynchus mykiss)
Cutthroat trout (Oncorhynchus clarki)
Fall, spring, winter, summer, resident, sea-run early & late runs (as appropriate by species).

Life stages represented in data: smolts, pre-smolts, parr and fry.
Location Cedar Creek, 27.0339, a tributary to the North Fork of the Lewis River.
NPCC Subbasins (2001 Subbasins) Lower Columbia: Lewis
Hatcheries Lewis River Hatchery
Keywords Smolt Trap, Rotary Screw Trap, Outmigration Counts
Lead Person and Organization That Created the Data Set Michelle Groesbeck
Other Participating Organizations WDFW, USFWS
Contact Person for Questions About the Data Name:  Michelle Groesbeck
Position:  Fish & Wildlife Biologist 2
Organization:  Washington Department of Fish and Wildlife
Address:  2108 Grand Blvd
Vancouver, WA  98661
Phone:  360-906-6768
email:  Send a note to addressed for groesmlg.
Broad Category of Methods Field
Data Collection Methods Mark, tag & recapture with the rotary screw trap.
File Formats MS-Word, Excel, and MS-Access
Data structure description See data set files
URL where updated data may be available
Some data sets are intrinsically linked to software, tools, models, or statistical procedures, and must be used in association in order to be of value. If this applies to this data set then the following information will apply:
Relationship between the data set and the software, model, etc.
Where the software, tools, models, etc. can be obtained if they are not included with the data download.
Contact person for questions about the software, tools, models, etc. Name:  

Papers, reports, and presentations that were done under this project. 2003 Cedar Creek Juvenile Salmonid Production Evaluation, 2004 Cedar Creek Juvenile Salmonid Production Evaluation, 2005 Cedar Creek Juvenile Salmonid Production Evaluation, and Lower Columbia Coho Evaluation
Restrictions or legal prerequisites for accessing and using this data set. No

File Size: 12 MB