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Coker, R. E. (1929). Keokuk dam and the fisheries of the Upper Mississippi River. United States Department of Commerce, Bureau of Fisheries, Document 1063.
A detailed account of the Keokuk dam (the first dam on the Upper Mississippi River) is provided. Observations on the Keokuk dam as a possible obstruction to fish, an account of the migratory movements in the area of the dam, evidence of migration, and the effect of the dam on myriad physical properties of the river are tendered. [abstract generated by bibliography authors]
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://umesc.usgs.gov/data_library/fisheries/fish_passage/coker.html
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November 3, 2015