Upper Midwest Environmental Sciences Center
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Hesse, L. W., J. C. Schmulbach, J. M. Carr, K. D. Keenlyne, D. G. Unkenholz, J. W. Robinson and G. E. Mestl (1989). Missouri River fishery resources in relation to past, present, and future stresses. Pages 352-371 in Conference International Large River Symposium, Honey Harbour, Ont. (Canada), Canadian Special Publications of Fisheries and Aquatic Sciences.
Nearly one-third of the Missouri River has been impounded, one-third channelized, and the hydrologic cycle, including temporal flow volume and sediment transport, has been altered on the remainder. The floodplain along the lower one-third has been converted from riparian forest and prairie to agriculture. The changes in basin and floodplain physiography and channel morphology have reduced commercial fish harvest by more than 80% and are implicated in the demise of native species. In some instances nonnative fish have replaced endemic species in the mainstream reservoirs, where breeding and maturing habitat for riverine species has been eliminated. Suggested solutions include a holistic approach to future research and management.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/hesse6.html
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Page Last Modified:
November 3, 2015
