Piscicide
A piscicide is a chemical substance which is poisonous to fish. The primary use for piscicides is to eliminate a dominant species of fish in a body of water, as the first step in attempting to populate the body of water with a different fish. They are also used to combat parasitic and invasive species of fish.
Examples of piscicides include rotenone[1] [2], saponins, TFN (3-trifluoromethyl-4-nitrophenol), niclosamide, Bayluscide (a proprietary name for the ethanolamine salt of niclosamide), and Fintrol.
[edit] Plant-based piscicides
Historically, fishing techniques of indigenous people around the world have frequently included the use of plant-based piscicides. Many of these plants are natural sources of rotenone and saponins.
The Tephrosia, Wikstroemia, and Barringtonia genuses are well-known as fish poisons.
[edit] References
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3. Overview of potential piscicides and molluscicides for controlling aquatic pest species in New Zealand [1]
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