{{Short description|Poison for fish}} 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,<ref>[http://www.chm.bris.ac.uk/motm/rotenone/piscicide.html Rotenone as a piscicide<!-- Bot generated title -->]</ref><ref>[http://www.fisheries.org/units/rotenone/ Rotenone Stewardship Program<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20071110190137/http://www.fisheries.org/units/rotenone/ |date=2007-11-10 }}</ref> saponins, TFM, niclosamide and Antimycin A (Fintrol).<ref>Susan J. Clearwater, Chris W. Hickey, Michael L. Martin ''[http://www.doc.govt.nz/upload/documents/science-and-technical/sfc283entire.pdf Overview of potential piscicides and molluscicides for controlling aquatic pest species in New Zealand]'' Science & Technical Publishing 2008 {{ISBN|978-0-478-14376-8}}</ref>
==Plant-based piscicides== {{main|Fish toxins}} 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 genera ''Tephrosia'', ''Wikstroemia'', and ''Barringtonia'' are well known as fish poisons.
==See also== *Cyanide fishing *{{section link|Environmental impact of pesticides|Aquatic life}}
==References== {{reflist}}
{{fisheries and fishing}}
Category:Pesticides Category:Fisheries science
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