This volume includes measures of control of aquatic vegetation that harms human health, since water-related diseases exist in this environment. Although malaria has receded internationally due to the combined chemotherapeutic-insecticidal programs, recently it has resisted both medicines and insecticide control. Active malaria cases in the U.S. were fewer than a dozen before the Vietnam War, but in 1973 the figure was ab out 700, almost all traceable to returning military personnel. The disease could again become prevalent. Other diseases exist whose transmission is indirectly affected by aquatic weed conditions including filariasis, and various trematodiases, especially from the schistosomes, Chinese liver fluke, cattle liver fluke, Guinea worm, giant intestinal fluke, Asiatic lung fluke, and broad tapeworm. Waterweeds also support disease-pest arthropods, i.e., snipe flies, tabanids (horse, gad, deer, and greenheads), Clear Lake gnats, Mayflies, black flies, sandflies, and sewage flies.Ecosystem studies of impounded water research and development of herbivorous fish, and utilization of herbivorous fish in China, are also included in this volume.
Table of Contents
1. Aquatic Weeds and Man‘s Well-being 2. Control of Snail-Borne Parasitic Disease 3. Aquatic Weed Problems in the Panama Canal 4. Aquatic Weed Problems of Puerto Rico 5. Remote Sensing of Aquatic Plants 6. Environmental Policy in the Corps of Engineers 7. Comparative Concentrations of Nutrients in an Aquatic 8. Input, Storage and Output of Plant Nutrients 9. Aquatic Plant Succession in Lake Seminole 10. Ecology of Hydrilla Verticillate 11. Ecology of Cambomda Caroliniana 12. Herbivorous Fish for Aquatic Plant Control 13. Comparative Evaluation of the White Amur and Common Carp upon Aquatic Ecosystem 14. Weed Control of the White Amur 15. Food Habit of the White Amur 16. Environmental Aspects of White Amur Culture. 17. Distribution and Biology of Economically Important Fishes. 19. Fish Production in China 20. Transportation of Fish Eggs, Fry and Young 21. The Rearing of Fish Fry and Fingerlings 22. The Rearing of Fish Fry 23. Natural and Cultivated Food of Fresh Water Fishes