Macroinvertebrate populations in the Weber River, Summit County, Utah, were analyzed to determine what effects channelization resulting from Interstate-80 construction and water impoundment had on the standing crop, species diversity and species composition. Bottom samples were collected monthly from riffle areas in channeled and unchanneled sections and above Echo and Wanship Reservoirs. Macroinvertebrate populations in the channeled areas were similar in standing crop, species diversity and species composition to those in unchanged areas within six months following channelization. Species diversities were higher (d=4.1, 3.7) above the reservoirs than below (d=2.0). The reservoirs restricted the distribution of several species of macroinvertebrates. The effects of channelization on the macroinvertebrate fauna in the Weber River were negligible, but water impoundment influenced the species composition and species diversities of the populations occurring in the tailwater.
College and Department
Plant and Wildlife Sciences
BYU ScholarsArchive Citation
Winger, Parley V., "The effects of channelization and water impoundment on the macroinvertebrates in the Weber River, Summit County, Utah" (1972). Theses and Dissertations. 7922.
Invertebrates; Weber River (Utah); Zoology, Utah