Open AccessEVALUATION OF MEDIAN LETHAL CONCENTRATION (LC ) 50 OF MYSTUS VITTATUS (BLOCH) FOR COPPER SULPHATE
Author(s) -
Arun Kumar Verma,
Sadguru Prakash
Publication year - 2021
Publication title -
international journal on agricultural sciences
Language(s) - English
Resource type - Journals
ISSN - 0976-450X
DOI - 10.53390/ijas.v12i2.3
Subject(s) - catfish , copper , fish <actinopterygii> , biology , freshwater fish , zoology , anatomy , fishery , chemistry , organic chemistry
The toxic effect of Copper on freshwater catfish Mystus vittatus was studied. The LC values of copper in Mystus 50 vittatus for 24, 48, 72 and 96 hours were 20.589, 16.497, 11.815 and 8.665 mg/L respectively. The cat fish was silvery grey in body in the control group throughout the experiment. The body colour changed from original silvery grey to dark colour in heavy metal treated fish. The fish maintained in freshwater behaved normal as usual. But when the fish was exposed to copper, erratic swimming, abnormal posture, dis-balance, sluggishness, imbalance in posture, increase in surface activity, opercular beating, and gradual loss of equilibrium and spreading of excess of mucus allover the surface of the body were observed.