Aquatic Plant Management for Recreation Areas,
Abstract
Algae and flowering aquatic plants (submergents, floaters and emergents) form the first link in the food chain, contribute to the water environment by taking in carbon dioxide and releasing oxygen during photosynthesis, provide an animal habitat for the water community, and control erosion. But even with these necessary contributions, certain species have the ability to become major world wide aquatic pest plants. Shallow depth, gently sloping shorelines, stable bottoms, warm water, clear water, and water of high fertility are environmental factors that contribute to dense aquatic plant growth. Nitrogen and phosphorus compounds discharged from sewage plant effluents, home waste disposal systems, food-producing plants, and well-fertilized agricultural watersheds increase fertility thereby stimulating profuse growth of algae and aquatic plants. Also, seed production, vegetative reproduction and winter buds intensify the problem. Excessive growths interfere with swimming, boating and fish propagation; clog intake pipes; make water unfit to drink without treatment; cause oxygen depletion and subsequent fish kills due to increased respiration and decomposition; and speed up the natural lake filling processes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1979
- Accession Number
- ADA068477
Entities
People
- E. O. Gangstad
Organizations
- United States Army Corps of Engineers