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Comprehensive Assessment & Monitoring Program (CAMP)
Techniques for Monitoring Fish Production
Techniques
Several techniques are used to collect the data we use to develop fish production estimates:
- The following techniques are used to develop production estimates of adult Chinook salmon:
- Mark-recapture surveys are used to develop production estimates of adult striped bass, green sturgeon, and white sturgeon.
- Midwater trawl surveys are used to develop an index of the abundance of juvenile American shad.
- Rotary screw traps are used to develop production estimates of juvenile Chinook salmon.
More Information
- Fish Production Estimates - The actual data.
- Developing Productions Estimates (PDF) - How we use the data to calculate production of Chinook salmon in each stream or river.
Monitoring in Action
Last updated: September 6, 2007
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Credits: Top and middle pictures of fish tagging courtesy California Dept. of Fish & Game. Top photo by Marty Gingras, middle photo by John Selke, bottom photo of trawling - Fish & Wildlife Service - photographer unknown.
