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Parasites, pathological conditions and mortality in QX-resistant and wild-caught Sydney rock oysters, Saccostrea glomerata

Green, T.J., Jones, B.ORCID: 0000-0002-0773-2007, Adlard, R.D. and Barnes, A.C. (2008) Parasites, pathological conditions and mortality in QX-resistant and wild-caught Sydney rock oysters, Saccostrea glomerata. Aquaculture, 280 (1-4). pp. 35-38.

Link to Published Version: https://doi.org/10.1016/j.aquaculture.2008.04.004
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Abstract

Differences in the survival of QX-resistant fifth generation (QXR5) and wild-caught (Wild-Caught) Sydney rock oysters were assessed over the QX-disease risk period in the Pimpama River, SE Queensland. Cumulative mortality of Wild-Caught oysters (31.7%) was significantly greater than QXR5 oysters (0.0%) over the 118 days of the experiment. PCR and histological results showed that Wild-Caught oyster did not die from QX disease. Histology revealed oysters were infected with disseminating hemocytic neoplasia, a Steinhausia-like infection, a Rickettsia-like organism infecting epithelial cells of the gill, digenean flukes encysted in the gonadal tissue and a gill response to an unknown toxin. The cause of mortality is attributed to disseminating hemocytic neoplasia.

Item Type: Journal Article
Publisher: Elsevier BV
Copyright: © 2008 Elsevier B.V
URI: http://researchrepository.murdoch.edu.au/id/eprint/42783
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