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    • University of Missouri-Columbia
    • Graduate School - Theses and Dissertations (MU)
    • Theses and Dissertations (MU)
    • Dissertations (MU)
    • 2006 Dissertations (MU)
    • 2006 MU dissertations - Freely available online
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    Use of main channel and shallow-water habitat by larval fishes in the lower Missouri River

    Reeves, Kerry S. (Kerry Scott)
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    [PDF] public.pdf (65.09Kb)
    [PDF] short.pdf (59.97Kb)
    [PDF] research.pdf (6.225Mb)
    Date
    2006
    Format
    Thesis
    Metadata
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    Abstract
    I developed a series of research objectives organized in a spatial hierarchy to characterize larval fish nursery habitat within the lower Missouri River. Native carpsucker spp./buffalo spp. (Carpiodes spp./Ictiobus spp.) and chub spp. (Macrhybopsis spp.) catch-per-unit-effort (CPUE) was higher within sandbar aquatic terrestrial transition zone (ATTZ) than main channel. Local-environmental factors accounted for the greatest proportion of variance in larval fish CPUE within sandbar ATTZ, followed by hydrologic and finally geomorphic factors at macro- and meso-habitat scales. At the microhabitat scale, the larval fish assemblage and carpsucker spp./buffalo spp. selected areas [lesser than or equal to] 10 cm deep with current velocities [lesser than or equal to] 5 cm/s. Silver/bighead carp (Hypophthalmichthys molitrix/nobilus) exhibited no selection based on water depth or current velocity. Chub spp. selected depths between 20-50 cm and areas 2-3 m from the waters edge. The larval fish assemblage and several taxa exhibited a significant nocturnal increase in CPUE within the primary channel and sandbar ATTZ at the macrohabitat scale in contrast to previous research indicating turbid rivers lacked a diel cycle in larval fish drift.
    URI
    https://hdl.handle.net/10355/4376
    https://doi.org/10.32469/10355/4376
    Degree
    Ph. D.
    Thesis Department
    Fisheries and wildlife sciences (MU)
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    • 2006 MU dissertations - Freely available online
    • Fisheries and Wildlife Sciences electronic theses and dissertations (MU)

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