Title page for ETD etd-03032009-041041


Type of Document Master's Thesis
Author Layton, Raymond Jay
URN etd-03032009-041041
Title Production of benthic macroinvertebrates in a river used for commercial navigation :Kanawha River, West Virginia
Degree Master of Science
Department Entomology
Advisory Committee
Advisor Name Title
No Advisors Found
Keywords
  • Aquatic ecology
Date of Defense 1985-06-25
Availability unrestricted
Abstract

The purpose of this study was to analyze the production of the benthic macroinvertebrates in a commercially navigated river in order to assess the environmental impacts of increasing levels of traffic. Production was estimated for 16 taxa at two sites in the Winfield navigational pool (Upper Winfield - UW; Lower Winfield - LW). Total production of all taxa on cobble/pebble substrates was 43,838 mgDW/m2/yr at UW and 16,553 mgDW/m2/yr at LW. Production on sand/silt substrates was lower, 3,534 mgDW/m2/yr at UW and 2,405 mgDW/m2/yr at LW. On cobble/pebble substrates the production was mostly accounted for by Diptera (76.0% UW, 85.2% LW), Trichoptera (12.4% UW, 5.8% LW), and Ephemeroptera (10.8% UW, 5.8% LW). On sand/silt substrates virtually all production was accounted for by Diptera. Total macroinvertebrate production for an "average" square meter of the Winfield Pool was estimated as 6,228 mgDW/m 2/yr.

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