Title page for ETD etd-11202012-040127
|Type of Document
||Odom, Michael Cooper
||Distribution of larval fishes in the Winfield Pool, Kanawha River, and direct impacts of commercial navigation traffic on larval fish survival
||Master of Science
||Fisheries and Wildlife Sciences
|Nielsen, Larry A.
|Orth, Donald J.
|Helfrich, Louis A.
|Date of Defense
Distributions of larval üshes in the Winfield Pool, Kanawha River, West Virginia, were
determined by sampling two sites with bongo and push nets. Cyprinids, clupeids, and
Aplodinotus grunniens dominated collections. Main channel densities were a fraction of the
densities along the shoreline, indicating the importance of the shoreline as a nursery. Diel
trends in abundance were evident for several taxa, but were likely caused by diel changes in
gear avoidance and distribution of larvae. Vertical trends in abundance were apparent for
several taxa at the deeper and more lentic sampling site (lower pool). Aplodinotus grunniens
were generally more abundant near the bottom, especially during daylight. Cyprinids were
more abundant near the bottom in mid-June, but displayed no vertical trends on other
sampling dates. Clupeids were more abundant at middepth or surface during daylight, while
equally dispersed or near the bottom at night. Vertical trends were not evident at the
shallower and more lotic site (upper pool) except for Aplodinotus grunniens, which displayed
the same preference for the bottom, as at the lower site.
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