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Filtering by: Subject Willamette River Greenway (Or.) Remove constraint Subject: Willamette River Greenway (Or.) Decade 1950-1959 Remove constraint Decade: 1950-1959

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  • The Willamette River fishes as biological indicators of pollution

    Creator:
    Noble, Richard Earl
    Abstract:
    An investigation of the fishes of the Willamette River and three of its larger tributaries was made during July, August, September, and November of 1951, to ascertain the possibility of using them as bio-indices of pollution. Thirteen stations were established on the Willamette River and tributaries. These stations were selected...
    Resource Type:
    Masters Thesis
    Full Text:
    --------------------._..- _. _..----------------- Abstract approved An investigation of the fishes of the Willamette River and three of its larger