Fish-killer plants!

Sounds like the underwater version of “Little Shop of Horrors” movie.

Now that I’ve your attention, I’d like to draw your attention to this article. There may come time when it might be necessary to remove fish from water bodies. Examples include the removal of invasive exotic fish species from a lake or pond. Old methods involve pumping out the pond and leaving it to dry. This is a long and expensive process, and in the meantime when the pond is left to dry, other aquatic organisms ranging from invertebrates to macrovertebrates such as birds, etc. will be displaced from their homes.

This is why research in this area of looking for toxins that specifically target fish, while leaving other organisms safe from harm is a necessary evil.

Journal of Applied Aquaculture
Volume 24, Number 4 (December 2012)
	Median Lethal Concentration (LC50) of Piscicidal Plants and Their Utilization in Aquaculture
	Authors:	S.N. Ramanujam 1, R. Dominic 1
	Author Affiliations:	1: Fish Biology Laboratory, North Eastern Hill University
	Source:	Journal of Applied Aquaculture, Volume 24, Number 4 (December 2012)
	Page Numbers:	326 – 333
	Available Full Text:	Full Text: Subscription Required to view full text Format: PDF Size: unknown Location: Publisher’s Site Authentication: EBSCOhost EJS
	Abstract:	Aqueous and ethanol extracts of Acacia pennata(bark), Catunaregam uliginosa(fruit), Diospyros lenceofolia(fruit), and Sapindus mukorossi(fruit) were evaluated as piscicides on the freshwater fish Danio dangila, Danio rerio, and Puntius shalynius,and the air-breathing Heteropneustes fossilis. Catunaregam uliginosa(fruit) possessed relatively higher piscicidal potency followed by Sapindus mukorossi(fruit), Acacia pennata(bark), and lastly Diospyros lanceofolia(fruit). Catunaregam uliginosacan thus be used for eradicating unwanted wild fishes in a short time span at low concentrations so that the health of aquatic environment is maintained.
	Citation:	S.N. Ramanujam, R. Dominic . Median Lethal Concentration (LC50) of Piscicidal Plants and Their Utilization in Aquaculture. Journal of Applied Aquaculture, Volume 24, Number 4 (December 2012), pp. 326-333, <http://ejournals.ebsco.com/direct.asp?ArticleID=47FC9128559540E91AAF&gt;
	URL:	http://ejournals.ebsco.com/direct.asp?ArticleID=47FC9128559540E91AAF