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

Anitha, P S and George, Rani Mary (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 madrasensis) 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 adrasensis, histopathology, copper toxicity
    Subjects: Molluscan Fisheries > Edible oyster
    Fish Diseases
    Divisions: CMFRI-Kochi > Physiology and Nutrition Pathology
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Physiology and Nutrition Pathology
    CMFRI-Kochi > Physiology and Nutrition Pathology

    CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Depositing User: Users 5 not found.
    Date Deposited: 05 Aug 2010 11:54
    Last Modified: 09 Sep 2015 15:15
    URI: http://eprints.cmfri.org.in/id/eprint/2069

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