• Dr. Mayura S. Patil

The salts of heavy metal, released from commercial, industrial sources passes into aquatic ecosystem. Heavy metals are most hazardous pollutants because of their non-degradable nature. The heavy metals enter into body of aquatic animals and reaches up to non target animal i.e. man through the food chain. Oxygen consumption of animal is a very sensitive physiological process and changes in respiratory activity indicate the stress in pollutant exposed animals. The present work conducted, to study the effect of coriander extract on Mercury induced toxicity on Catalase activity in the fresh water Bivalve Lamellidens consobrinus. The effect was studied under five groups. Bivalves of Group ‘A’ was maintained as Control, group ‘B’ Bivalves were exposed to chronic LC50/10 dose of Mercury chloride (0.170 ppm) ,while group ‘C’ Bivalves were exposed to respective chronic concentration of Mercury chloride along with 5 ml/lit of coriander extract for 18 days. Catalase content in Bivalves from all groups were estimated after 6, 12 and 18 days. After 18 days exposure to Mercury chloride Bivalves from ‘B’ group was divided into two groups into ‘D’&‘E’ groups. Bivalves of ‘D’ group were allowed to cure naturally while those of ‘E’ were cured with coriander extract (5 ml/lit). Catalase content in bivalves from these D & E groups was studied after 6, 12& 18 days. Significant decrease in Catalase content was observed in ‘B’ group bivalves as compared to group ‘A’ (control). The group ‘C’ bivalves showed more Catalase content than those group ‘B’ bivalves. The group ‘E’ bivalves showed fast recovery and more Catalase content with coriander extract than those of group ‘D’ bivalves which were allowed to cure naturally. Catalase content was estimated by Aebi (1974) et.al method.

Lamellidens consobrinus, toxicity, ppm, Mercury chloride Coriander extract, Catalase content

"Role of phytoextract (C.Sativum) on Mercury Chloride (Hgcl2) induced alterations, on Catalase content of fresh water Bivalve Lamellidens consobrinus", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 7, page no.g130-g136, July-2021, Available :http://www.jetir.org/papers/JETIR2107750.pdf

"Role of phytoextract (C.Sativum) on Mercury Chloride (Hgcl2) induced alterations, on Catalase content of fresh water Bivalve Lamellidens consobrinus", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 7, page no. ppg130-g136, July-2021, Available at : http://www.jetir.org/papers/JETIR2107750.pdf