Histopathology of copper toxicity in the Indian edible oyster, Crassostrea madrasensis (Preston)

Ittoop, Gijo and George, K C and George, Rani Mary and Sobhana, K S and Sanil, N K and Nisha, P C (2006) Histopathology of copper toxicity in the Indian edible oyster, Crassostrea madrasensis (Preston). Journal of the Marine Biological Association of India, 48 (1). pp. 19-23.

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    Abstract

    Indian edible oysters (Crassostrea nmdrasensis) of average size 6.4 ? 1.2 cm x 4.3 +. 0.8 cm were exposed to two sublethal concentrations of copper viz. 0.5 ppm and 1 pprn at a salinity of 12 ppt for a period of four weeks. Adductor muscle, mantle and gill tissues were dissected out and subjected to histological examination. The results revealed extensive damages to the adductor muscle, mantle and gills of the copper treated oysters. The maximum damage occurred in the epithelial cells of all the tissues studied in the oysters exposed to copper. It was also observed that the physiological responses such as opening and closure of the shell valves and feed filtration were impaired in the animals exposed to copper.

    Item Type: Article
    Uncontrolled Keywords: Edible oyster; Crassostrea madrasensis; histopathology; copper toxicity
    Subjects: Molluscan Fisheries > Edible oyster
    Marine Environment > Marine Pollution
    Marine Environment
    Divisions: CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI > CMFRI-Kochi > Marine Biotechnology
    CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI-Kochi > Marine Biotechnology
    Depositing User: Arun Surendran
    Date Deposited: 04 Mar 2019 10:52
    Last Modified: 05 Mar 2019 07:24
    URI: http://eprints.cmfri.org.in/id/eprint/13420

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