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    Author(s): Eric. H. LaGasa; Stamford D. Smith
    Date: 1978
    Source: Res. Note PSW-RN-328. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 3 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (236 KB)

    Description

    A sealed-edge pyramidal trap to sample total insectemergence from a segment of a small stream has been designed and tested in northeastern Oregon. The trap is approximately 10 by 10 feet at the base, and is constructed of wood, clear plastic, and galvanized screening. It is efficient and readily used, and can yield significant data on seasonal population changes and on the environmental impact of insecticides.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    LaGasa, Eric. H.; Smith, Stamford D. 1978. Improved insect emergence trap for stream community population sampling. Res. Note PSW-RN-328. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 3 p

    Keywords

    aquatic insects, population sampling, traps

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