Table 13
Summary of Harvesting
Description
Characteristic
Targets
Aquatic macrophytes.
Cut, collect, and remove plants.
Mode of action
Moderately effective; symptoms may remain; nutrients
Effectiveness
and organic matter removed.
Longevity
Weeks to months.
Negative features
removal.
Turbidity.
Occasional algal blooms.
High initial equipment costs.
Operator, storage, and maintenance costs may be high.
Costs can be estimated through computer simulation
(HARVEST);
Applicability to
Could not manage infestation over large area
reservoirs
unless
machines were available. Poor
applicability in some southern waters with dense,
rapidly growing infestations of exotic plants.
Excellent for coves, marinas, and beach areas.
References
Anderson, P. W. 1984. "The Environmental Impacts of Harvesting on a Small
Embayment of Wendell R.
Reservoir, Geauga Co., Ohio,"
thesis, Kent
State University, Kent, OH.
Burton, T. M., D. L. King, and J. L. Ervin. 1979. "Aquatic Plant Harvesting
as a Lake Restoration Technique," Lake Restoration, EPA-440/5-79-001,
US Environmental Protection Agency, Washington, DC,
177-185.
Plants and Mechanical Methods for Their
Cannellos, G.
1981.
Control," Mitre Corporation, McLean, VA.
Carpenter, S. R. 1980. "Enrichment of Lake Wingra, Wisconsin, by Submersed
Decay," Ecol.,
124
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