Piscicides, Toxicants, and Explosives. Reasons for using toxicants:. Control undesirable fish in favor of sport species; e.g. suckers or carp Eradicate exotic species; e.g., snakehead Eradicate competitors Control fish diseases Restoration of endangered species. Toxicants for fish sampling
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Works well in shallow areas
Immediate detoxification with potassium permanganate (KMnO4)
Most fish are ‘sacrificed’
Negative public perception
Non-target species: swine, zooplankton, many invertebrates
Drinking water concerns
Potassium permanganate toxicityPros and Cons of Rotenone
Administration of rotenone-mixing with prop wash.