• Dr Adity Sarbajna

Metals are non-biodegradable and hence, both localized and dispersed metal pollution cause environmental damage. Cumulative effects of metals or chronic poisoning may occur as a result of long-term exposure even to low concentrations. The accumulation of metals varies depending upon the species, environmental conditions, and inhibitory processes. Mystus sp. is an important indigenous fish species of Indian Sundarban area and is ecologically vulnerable as well as commercially important. So, present study aimed at providing information on concentration levels of metals (lead, zinc, cadmium, and chromium) in the brain and muscle of Mystus sp. collected from water bodies of Diamond Harbour (22.19° N, 88.20° E), Malancha (22.50° N, 88.76° E) and Chandanpiri (21.67° N, 88.29° E) of Sundarban area. The concentrations of Lead and Zinc in sediment and water of the pond at Malancha and Chandanpiri were found to be higher compared to those in the pond at Diamond Harbour. The concentration of Chromium was found to be significantly higher in sediment and water at both Malancha and Chandanpiri than that of Diamond Harbour. No significant alteration in the concentration of Cadmium was noted in any of the three sites. All the four metals were found to be accumulated more in sediment than that of water at all three sampling sites. A continuous monitoring program is recommended to establish the studied organism as bioindicator and to identify future changes to conserve the "health" of this fragile ecosystem.

STUDY OF HEAVY METAL (PB, ZN, CD,CR) CONTAMINATION WITH Mystus gulio AS A BIOINDICATOR

"STUDY OF HEAVY METAL (PB, ZN, CD,CR) CONTAMINATION WITH Mystus gulio AS A BIOINDICATOR", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.1187-1191, January-2019, Available :http://www.jetir.org/papers/JETIR1901C65.pdf

"STUDY OF HEAVY METAL (PB, ZN, CD,CR) CONTAMINATION WITH Mystus gulio AS A BIOINDICATOR", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp1187-1191, January-2019, Available at : http://www.jetir.org/papers/JETIR1901C65.pdf