Survey of the Oyster Parasite, Dermocystidium marinum

Abstract

The fungus disease, Dermocystidium marinum, was found among oysters in all bay areas sampled with the exception of South Bay. In Galveston, Matagorda, San Antonio, and Aransas Bays, there appeared to be a seasonal pattern of incidence with two peaks, one in the spring and the other in late summer. A general decrease in the incident was noted during June, July and August.