Skip to Main Content
A floating trap for sampling downstream migrant fishes.Author(s): Carl E. McLemore; Fred H. Everest; William R. Humphreys; Mario F. Solazzi
Source: Res. Note. PNW-RN-490. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 7 p
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
Download Publication (844 KB)
DescriptionFishery scientists and managers are interested in obtaining information about downstream movements of fish species for biological and economic reasons. Different types of nets and traps have been used for this purpose with only partial success. The floating, self-cleaning downstream migrant trap described here proved successful for sampling several salmoniform and cypriniform species. The trap functions effectively for several streamflow ranges and handles small floating debris without loss of efficiency. Data from these floating traps show a range of trapping efficiency from 5.0 to 46.6 percent.
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMcLemore, Carl E.; Everest, Fred H.; Humphreys, William R.; Solazzi, Mario F. 1989. A floating trap for sampling downstream migrant fishes. Res. Note. PNW-RN-490. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 7 p
KeywordsSmolts, fish traps, Humphreys trap
- Wood borers attracted to turpentine in windthrown timber in northern California
- Effectiveness of straw bale check dams at reducing post-fire sediment yields from steep ephemeral channels
- An effective box trap for capturing lynx
XML: View XML