Document Type
Report
Department/Program
Virginia Institute of Marine Science
Publication Date
1995
Abstract
The once thriving oyster industry in the Chesapeake Bay and east coast of the United States, has been threatened by overfishing, and diseases caused by two protistan parasites, Haplosporidium nelsoni (MSX) and Perkinsus marinus (Dermo). Three lifestages are recognized in the lifecycle of P. marinus, meronts (trophozoites), prezoosporangia, and the biflagellated zoospores. The effects of the diseases caused by the two protists have been well documented (Andrews 1988, Barber et. al. 1988, Ford 1988, Ford and Figueras 1988, Chu et al 1993, Chu and LaPeyre 1993a, 1993b, Paynter and Burreson 1991). Since 1986, P. marinus has reportedly caused greater oyster mortalities in lower Chesapeake Bay than H. nelsoni (Andrews 1988). (...)
Keywords
Perkinsus marinus, American oyster -- Diseases, American oyster -- Diseases -- Transmission
Recommended Citation
Chu, F. E. (1995) Disease processes and transmission dynamics of Perkinsus marinus in American oysters (Crassostrea virginia). Virginia Institute of Marine Science, William & Mary. https://scholarworks.wm.edu/reports/2665
