LIBROS DEL AUTOR: jason dunham

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  • Fish Movement Ecology in High Gradient Headwater Streams
    Jason Dunham / Robert L. Hoffman / United U.S. Department of the Interior
    Restoration of fish passage through culvert barriers has emerged as a major issue in the Pacific Northwest and nationwide. The problem has many dimensions, including the huge number of potential barriers, uncertainty about which structures are actually barriers, the benefits and risks involved with restoration, and the financial costs and timelines. This report attempts to addr...
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