Prokaryotic infection associated with a mass mortality of the sea scallop, Placopecten magellanicus |
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| Authors: | G GULKA PEI WEN CHANG KAREN A MARTI |
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| Institution: | Department of Aquaculture Science and Pathology, University of Rhode Island, Kingston, Rhode Island, U.S.A.;Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island, U.S.A. |
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| Abstract: | Abstract. A mass mortality of the deep sea scallop, Placopecten magellanicus , which occurred in the autumn and winter of 1979–80, in Narragansett Bay, Rhode Island was studied. Grossly the animals possessed greyish, flaccid adductor muscles and histologically they showed myodegeneration. Eighty-eight per cent of the 34 animals examined were infected with intracellular prokaryotes on the gills, plicate membranes and other epithelial surfaces of the body. The morphology of this prokaryotic organism is suggestive of rickettsia. Heavy infection was positively correlated with extensive myodegeneration. |
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