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1991 annual status report: A summary of aquatic vegetation monitoring at selected locations in Pools 4, 8, 13, and 26 and La Grange Pool of the Upper Mississippi River System


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Aquatic vegetation of the Upper Mississippi River System is monitored as part of the Long Term Resource Monitoring Program. This report summarizes the 1991 effort of monitoring submersed aquatic vegetation (SAV) along transects permanently established in vegetated locations in four navigation pools of the Upper Mississippi River and one navigation pool of the Illinois River. Seventeen species of submersed aquatic plants were found along transects in Pools 4, 8, 13, 26, and La Grange Pool. The highest number of submersed aquatic plant species found in any one pool was 16 in Pool 4 and the lowest number was 6 in La Grange Pool. Coon's tail (Ceratophyllum demersum) and sago pondweed (Potamogeton pectinatus) were the only two species found [...]


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  • Upper Midwest Environmental Sciences Center (UMESC)



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U.S. Geological Survey, Environmental Management Technical Center, Onalaska, Wisconsin

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