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Oyster Mortality Studies In Virginia. Ii. The Fungus Disease Caused By Dermocystidium Marinum In Oysters Of Chesapeake Bay, Jay D. Andrews, Willis G. Hewatt
Oyster Mortality Studies In Virginia. Ii. The Fungus Disease Caused By Dermocystidium Marinum In Oysters Of Chesapeake Bay, Jay D. Andrews, Willis G. Hewatt
VIMS Articles
A high death rate of oysters in Virginia waters during the warm months of summer and fall was reported by Hewatt & Andrews (1954b). One of the most important causes of this warm-season mortality is the fungus Dermocystidium marinum, a pathogen discovered in the Gulf of Mexico by Mackin, Owen & Collier (1950). The fungus is found along the coast of the Western Atlantic from Delaware Bay to Florida and on the coast of the Gulf of Mexico from Florida to Texas.
In Chesapeake Bay the disease was studied for pathogenicity to oysters, seasonal occurrence, distribution, and its effect on …
Trapping Oyster Drills In Virginia Iii. The Catch Per Trap In Relation To Condition Of Bait, J. L. Mchugh
Trapping Oyster Drills In Virginia Iii. The Catch Per Trap In Relation To Condition Of Bait, J. L. Mchugh
VIMS Articles
In the course of trapping experiments previously described (Andrews 1955, McHugh 1955), a question arose concerning deterioration of bait with time. It is fairly obvious to those who fish the traps that the condition of the bait changes. The smallest oysters die first, through predation by drills, crabs, and other enemies, and through smothering in the muddy bottom. Barnacles and other organisms on the shells also die from various causes. The valves of the dead oysters soon separate, and some are lost through meshes of the trap, so that the volume of bait also decreases. Stauber (1943) found that efficiency …