An Ecological Study of Hydrilla in the Potomac River
Author | : Robert V. Folker |
Publisher | : |
Total Pages | : 42 |
Release | : 1987 |
Genre | : Hydrilla |
ISBN | : |
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Author | : Robert V. Folker |
Publisher | : |
Total Pages | : 42 |
Release | : 1987 |
Genre | : Hydrilla |
ISBN | : |
Author | : Robert V. Folker |
Publisher | : |
Total Pages | : 35 |
Release | : 1987 |
Genre | : |
ISBN | : |
In an attempt to objectively evaluate the ecological role of hydrilla in the Potomac River, a qualitative study was conducted on the use of the plant by waterfowl species. Three study areas were selected along the river where hydrilla was known to grow profusely, and observations were made of waterfowl feeding on the hydrilla or otherwise using the areas. In addition, a small population of captive waterfowl was used in a simplistic study of feeding preference on hydrilla plant material collected along the river. This report gives the results of these studies. In general, from the observations in these studies, it is apparent that hydrilla does provide ecological values important to waterfowl and other water-associated birds. The most obvious use of hydrilla by ducks and geese is direct consumption as food. Some duck species and other birds are no doubt obtaining adequate fish and invertebrate food items from the hydrilla stems, leaves, and interfoliar spaces. These studies, although qualitative for the most part, indicate that the ecological value of hydrilla is probably very well worth further consideration. The potential positive scientific information to be gained is obvious. Keywords: Aquatic weeds; Aquatic plants; Weed control.
Author | : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB. |
Publisher | : |
Total Pages | : 216 |
Release | : 1985 |
Genre | : |
ISBN | : |
This report provides: (1) An evaluation of physical and chemical characteristics of the Potomac River that may influence the growth and distribution of Hydrilla. (2) A review of literature on the ecology of submersed aquatic vegetation with emphasis on Hydrilla. (3) A review of the chemical, biological, and mechanical/physical technologies available to control Hydrilla. and (4) Conclusions and recommendations, with specific application to moneoecious Hydrilla in the Potomac. Keywords: Hydrilla verticillata; Aquatic ecology; and Aquatic plant management.
Author | : |
Publisher | : |
Total Pages | : 234 |
Release | : 1985 |
Genre | : Aquatic weeds |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 464 |
Release | : 1986 |
Genre | : |
ISBN | : |
Author | : Martha C. Bradley |
Publisher | : |
Total Pages | : 76 |
Release | : 1959 |
Genre | : Anacostia River (Md. and Washington, D.C.) |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 520 |
Release | : 1987 |
Genre | : Science |
ISBN | : |
Author | : Reginal M. Harrell |
Publisher | : |
Total Pages | : 90 |
Release | : 1989* |
Genre | : Fish habitat improvement |
ISBN | : |
Author | : United States. Congress. House. Committee on the District of Columbia. Subcommittee on Government Operations and Metropolitan Affairs |
Publisher | : |
Total Pages | : 204 |
Release | : 1985 |
Genre | : Aquatic sports |
ISBN | : |
Author | : U.S. Army Engineer Waterways Experiment Station |
Publisher | : |
Total Pages | : 408 |
Release | : 1993 |
Genre | : Coastal engineering |
ISBN | : |