International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

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ACUTE TOXICITY LEVELS AND ETHOLOGICAL RESPONSES OF A FRESHWATER BIVALVE, LAMILLIDENS MARGINALIS EXPOSED TO MEDICINAL PLANT CALOTROPIS GIGANTEAN.

    3 Author(s):  SWADESH KUMARI, SUSHANT SRIVASTAVA, AMIT SHARMA

Vol -  7, Issue- 12 ,         Page(s) : 327 - 330  (2016 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

Experiments were carried out to determine the toxicity of Calotropin (a medicinal plant Calotropis gigantean) on fresh water bivalve, Lamellidens marginalis at different concentration on the mortality and behavioral changes. The LC50 values were 190, 170 and 160 mg/l for 48, 72 and 96 hrs., respectively. A quick response in the form of jumping increase movement, increase chelepede scraping of the body parts were observed in few first hours of experiment which normalized within 36 hrs. of exposure, there after animals settled on the bottom of aquaria. The mucus production on the gill and inner linings of branchio-stegite and carapace started after 36 hrs exposures and was more prominent in 96 hrs.

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