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Banerjee, K.
- Bioaccumulation Pattern of Heavy Metals in Fish Juveniles of Indian Sundarbans
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Authors
Affiliations
1 Department of Marine Science, Calcutta University, 35. B.C. Road, Kolkata–700 019, IN
2 Department of Microbiology, Panskura Banamali College, Purba Midnapore, Midnapore, IN
1 Department of Marine Science, Calcutta University, 35. B.C. Road, Kolkata–700 019, IN
2 Department of Microbiology, Panskura Banamali College, Purba Midnapore, Midnapore, IN
Source
Journal of Environment and Sociobiology, Vol 6, No 2 (2009), Pagination: 151-158Abstract
Coastal environment of West Bengal, recognized as the most diversified and productive ecosystem among all the maritime states of India, faces pollution from domestic sewage and urban and industrial effluents leading to serious impacts on biota. These organic and inorganic wastes containing heavy metals mainly originate from the city of Kolkata, Howrah and the newly developing Haldia port-cumindustrial complex. Most abundant heavy metals in the estuarine complex are Zn, Cu and Pb. The present paper aims to highlight the level of these heavy metals in juveniles of ten commercially important species of finfish collected from the aquatic subsystem of western Indian Sundarbans, a Gangetic delta in the north-east coast of the Indian sub-continent. The heavy metals accumulated in the juvenile fish muscles in the order Zn > Cu > Pb. Significant temporal variations of Zn and Cu level in the fish muscles were observed between years, but in case of Pb such variation was not observed. The accumulation of heavy metals in the selected fish muscles exhibited significant species specificity as revealed from the ANOVA results.Keywords
Estuary, Accumulation of Heavy Metals, Fish Juveniles.
- Studies on the Microbial Load in Sea Water, Sediment and Edible Oyster (Saccostrea Cucullata) from Indian Sundarbans
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Authors
Affiliations
1 Department of Microbiology, Vidyasagar University, Paschim Medinipur West Bengal, IN
2 Department of Marine Science, University of Calcutta 35, B.C. Road, Kolkata –700019, IN
1 Department of Microbiology, Vidyasagar University, Paschim Medinipur West Bengal, IN
2 Department of Marine Science, University of Calcutta 35, B.C. Road, Kolkata –700019, IN
Source
Journal of Environment and Sociobiology, Vol 9, No 1 (2012), Pagination: 1-12Abstract
The edible oyster Saccostrea cucullata is widely available in the intertidal zone of coastal and estuarine areas of West Bengal. Now a days culturing of this species has opened the opportunity of alternative livelihood of coastal people. In this context, to evaluate the suitability of oyster harvesting sites and the quality of meat of this species in terms of microbial load, the present study targeted the analysis of microbial load of the ambient environment and the tissue of this edible oyster collected from the Indian Sundarbans. The total bacterial count (TBC), total coliform (TC), fecal coliform (FC) and E.coli of the oyster and its ambient environment were measured from three different stations (Namkhana, Frazergaunge and Sajnekhali) of Indian Sundarbans through standard plate count and MPN method respectively. These stations showed significant variation with respect to microbial load which is reflected in the tissue of this edible oyster. Significant positive correlation was obtained between microbial load of the ambient environment and the tissue of edible oyster. Relatively higher microbial concentration was observed in monsoon season (July to October) compare to other seasons, which may be related to storm water runoff and increased runoff from adjacent land masses.Keywords
Edible Oyster, Livelihood, Microbial Load, Total Bacterial Count, Total Coliform , Fecal Coliform, E. Coli.References
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