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Many bodies of water have been overrun with fish species that are undesirable for the well-being of endemic aquatic biota and are of little or no interest to anglers. This situation has resulted from the transplanting of fish, creation of new waters, increasing fishing pressure and changing water quality. Although as many as 30 toxicants have been tried, only about 30 major piscicides have been used in rehabilitation programs to remove the unwanted species. Explicit knowledge of the mode of action of toxicants in the environment and improvements in fish farming, have permitted fishery managers to reduce the amount of control chemical that is applied to obtain a desired result. The number and volume of waters being reclaimed have increased, but this trend may change soon because environmental laws involving the use of registered pesticides are becoming more restrictive. Registration research has established the safety of some fish toxicants but has eliminated others. Only four piscicides are presently registered (or nonfood use application: antimycin and rotenone as general fish toxicants and 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide as selective lampricides.
Additional Publication Details
Federal Government Series
History of fish toxicants in the United States
American Fisheries Society, North Central Division