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Evidence Of A Naturally Occurring Inhibitor Possibly Limiting Dermocystidium Marinum In Virginia, H. Dickson Hoese
Evidence Of A Naturally Occurring Inhibitor Possibly Limiting Dermocystidium Marinum In Virginia, H. Dickson Hoese
Reports
Dermocystidium marinum, a fungus parasite common in oysters on the eastern shore of Chesapeake Bay, suddenly dissapeared at the beginning of the marsh and bay system of' the outer Virginia coast. No D. marinum was found on the outer coast (Seaside) although temperatures and salinities seem to be optimal. Introduction of populations of infected oysters seem to lose the dieease, but individuals do not. What seems to be a water derived inhibitor was found in a few water samples collected at Wachapreague on the Seaside. Comparable inhibition was not found in Chesapeake Bay water. The inhibitor is difficult to demonstrate …
Winter Mortalities Of Oysters On The Eastern Shore Of Virginia, 1959-1961, H. Dickson Hoese
Winter Mortalities Of Oysters On The Eastern Shore Of Virginia, 1959-1961, H. Dickson Hoese
Reports
During the winter of 1960-61 exceptional mortalities occurred among certain oysters on the Virginia Seaside. These mortalities were greatest among James River oysters held intertidally and South Carolina imports placed below low tide level. Intertidal native oysters suffered small mortalities but among subtidal native or James River oysters only the very oldest, with extensive disease histories, showed any winter mortality. (...)