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    Author(s): Pamela E. Porter; William R. Meehan
    Date: 1987
    Source: Res. Pap. PNW-RP-382. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 36 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (1.78 MB)

    Description

    The invertebrate communities ofeight Oregon streams were sampled seasonally from 1974 to 1976. Benthic, drift, and two types of aerial-trap samples were collected. Occurrence and percentage composition are summarized by sample type, season, and geographic area (coastal, Cascade, central, and eastern Oregon). Within 276 families, 426 taxa were identified; the 20 families most prevalent within each sample type accounted for the majority of organisms collected (77.8-91.8 percent). In most areas and seasons, Diptera and Ephemeroptera together comprised over half of the invertebrates collected.

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    Citation

    Porter, Pamela E.; Meehan, William R. 1987. Seasonal species composition of invertebrates in several Oregon streams. Res. Pap. PNW-RP-382. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 36 p

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    Keywords

    Invertebrata, aquatic life, Oregon

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