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ECOLOGICAL IMPACT OF INTEGRATED CHEMICAL AND BIOLOGICAL AQUATIC WEED CONTROL
Citation:
Shireman, J., W. Haller, D. Colle, C. Watkins, III, AND D. DuRant. ECOLOGICAL IMPACT OF INTEGRATED CHEMICAL AND BIOLOGICAL AQUATIC WEED CONTROL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-83/098 (NTIS PB83264242), 1983.
Description:
This final report presents results of a four-year study of the ecological impacts of chemical, biological, and integrated methods of aquatic weed control. Biological and water quality changes occurred as abundance of macrophytic vegetation was altered by natural factors or management practices. Macrophyte abundance strongly influenced the structure of communities, and it was concluded that environmental effects of plant management programs are determined more by the amount of vegetation controlled than by management technique. Also, changes in lake hydrology and rates of nutrient loading appear to be more important as determinants of lake water quality than macrophytes. Research needs for evaluation of effects of weed control on aquatic systems are identified.