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Free Content Hexamitiasis of Ostrea Edulis L. and Crassostrea Virginica (Gmelin)

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Abstract:

Ostrea edulis and Crassostrea virginica have been shown to contract a serious disease under conditions of low temperature, crowding, and recirculation of water in holding basins of Holland. This disease, known to the Dutch oystermen as “pit disease” is here designated as Hexamitiasis from the etiological agent, Hexamita. The flagellates are parasitic in the blood stream of their hosts, developing very heavy infections resulting in embolism and subsequent widespread histologic damage complicated by bacterial invasion and often resulting in death of the host. The disease occurs in America, as well as in Europe, and has been reported (unpublished mimeographed manuscript) from Prince Edward Island, Canada, and, in this paper, from Louisiana, where it is quite rare. Certain published data by Orton (1924) and Needler and Logie (1947) suggest that the disease may have caused extensive mortalities of oysters in the past.

Document Type: Research Article

Publication date: 1951-01-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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