California Coastal Salmonid Monitoring Program Annual Report: Results of regional spawning ground surveys and estimates of total salmonid redd construction in Redwood Creek, Humboldt County California, 2012.
Ricker S, Lindke K, Reneski M, Anderson C. 2014. California Coastal Salmonid Monitoring Program Annual Report: Results of regional spawning ground surveys and estimates of total salmonid redd construction in Redwood Creek, Humboldt County California, 2012.. California Department of Fish and Wildlife
Abstract:"A total of 143 salmonid spawning ground surveys were conducted in 21 randomly sampled stream reaches throughout the Redwood Creek basin between 11/07/2012 and 03/25/2013. An additional 76 surveys were conducted in the 7 reaches of Prairie Creek in order to complete surveys in all of the reaches within the Life Cycle Monitoring sub-basin. Individual stream reaches were surveyed an average of 8 times over the study period with an average return interval of 16 days between surveys. Field staff observed 146 coho salmon, 884 Chinook salmon, 36 steelhead trout and 59 unidentified live fish over the survey period. A total of, 50 coho salmon, 254 Chinook salmon and 43 unknown individual salmonid carcasses were found. Field surveyors were able to assign species to 303 of the total 987 redds observed. After all unidentified redds were predicted to species likely to have built them, we estimated the total number of redds constructed across all reaches in the sample frame, expanded from the randomly sampled reaches to be 919 Chinook salmon, 398 coho, and 375 steelhead. The spawning ground survey period did not encompass the entirety of the spawning period for steelhead, and therefor the estimates presented should be considered only for the length of the study. We estimated a total of 363 coho salmon, 305 Chinook salmon, 67 and steelhead redds for all reaches within the Prairie Creek Life Cycle Monitoring sub-basin."
- Type
- Published Report
- Authors
- Ricker, Seth; Lindke, Ken; Reneski, Melissa; Anderson, Colin
- Date of Issue
- 2014-03-13
- Publisher
- California Department of Fish and Wildlife
- Units
- REDW
- Keywords
- Chinook salmon, Coho salmon, fish studies, life cycle monitoring, Prairie creek, redds, Redwood Creek Basin, Steelhead trout, Stream survey