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  • Modeling Large Wood Impacts on Stream Hydrodynamics and Juvenile Salmon Habitat

    Creator:
    Bair, Russell
    Abstract:
    Large wood (LW) pieces are recognized as an important habitat component for salmon freshwater habitat. As such, they are often used in stream habitat restoration practices despite a lack of knowledge about their impacts on spatial and temporal hydraulic characteristics relevant to fish habitat. In this thesis we present results...
    Resource Type:
    Masters Thesis
    Full Text:
    Oregon Coast Range, a long term salmon life cycle study site. Study streams are small, with a bankfull

  • Effects of an engineered log jam on flow structure and complexity

    Creator:
    L'Hommedieu, William J.
    Abstract:
    The installation of engineered log jams (ELJs) is a common river restoration practice, implemented to modify flow structure and increase hydraulic complexity for the benefit of streambank protection and fish habitat. However, few studies have directly assessed the effects of ELJs on flow structure and complexity. This study presents a...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Effects of an Engineered Log Jam on Flow Structure and Complexity. Abstract approved

  • Roughness and geometry effects of engineered log jams on 1-D flow characteristics

    Creator:
    Valverde, Rachelle S.
    Abstract:
    The re-introduction of large woody debris (LWD) into streams and rivers for stream restoration purposes is rapidly growing. Engineered log jams (ELJs) are man-made structures intended to mimic natural LWD structures, designed and installed to protect stream banks from erosion while increasing habitat diversity. Several studies have evaluated the flow...
    Resource Type:
    Masters Thesis
    Full Text:
    ……………………………………………………...…….…….5 2. Engineered Log Jam on Sodom Ditch, Oregon……………………………..…….….……..6 3. Observed water surface

  • Responses of juvenile coho salmon and larval lamprey to instream habitat restoration in a Pacific Northwest stream

    Creator:
    Gonzalez, Rosalinda
    Abstract:
    Large wood has been utilized in many restoration projects to improve in-stream habitat in the Pacific Northwest for salmon. However, the benefits of this practice remain the subject of ongoing debate and evaluation of these projects has scarcely been done for non-salmonid species such as lamprey. In this study we...
    Resource Type:
    Masters Thesis
    Full Text:
    large wood restoration projects in the Oregon Coast Range indicates a net loss of wood over relatively