A preliminary study on a new Phyto-fish toxicant

The idea of the present research work was originated from a fish poaching event in a remote tribal dominated village of Paschim Medinipur located in Block, Gopiballavpur – I, where the fish fauna of a pond was totally destroyed due to application of a plant twig locally known as Palash. The name of the plant was collected by the second author from a tribal community of the village Singdhuee of the said block. The Plant part for experiment was collected from forest and identified by plant taxonomist as Butea monosperma. During the present study experiment was designed to isolate the toxic part of the plant materials and the toxicity has been measured for both the crude material as well as the supernatant extract of the plant materials. The entire experiments have been performed on Channa gachua as test organism. LC50 value of the plant toxicant on Channa gachua has been assayed.