Aquatic Diagnostic Laboratory, Department of Biology and Marine Biology, Roger Williams University, One Old Ferry Road, MNS 246, Bristol, RI 02809, USA.
Vet Pathol. 2013 May;50(3):404-11. doi: 10.1177/0300985813480806. Epub 2013 Mar 5.
The eastern oyster, Crassostrea virginica (Gmelin), is both an important component of our estuaries and an important farmed food animal along the east and south coasts of the United States. Its populations have been significantly diminished in the wild due to decades of overfishing beginning in the 1890 s. Unfortunately, in 1950, a new disease in eastern oysters caused by the protistan agent, Perkinsus marinus, was identified. The disease, resulting from infection with this protozoan, leads to high mortality of both wild and cultured eastern oysters. Current restoration efforts are hampered by the disease, as is the aquaculture of this economically important food. The parasite infects hemocytes and causes hemolytic anemia and general degeneration of the tissues, leading to death. Ongoing research efforts are attempting to develop oysters resistant to the disease. Transport regulations exist in may states. Infection with P. marinus is listed as a reportable disease by the World Health Organization.
东方牡蛎（Crassostrea virginica (Gmelin)）是美国东海岸和东南海岸重要的养殖食用动物，也是我们河口生态系统的重要组成部分。由于 19 世纪 90 年代开始的几十年过度捕捞，其野生种群数量大幅减少。不幸的是，1950 年，一种由原生动物寄生虫 Perkinsus marinus 引起的东方牡蛎新疾病被发现。这种疾病是由这种原生动物感染引起的，导致野生和养殖的东方牡蛎死亡率都很高。目前的恢复工作受到这种疾病的阻碍，这种寄生虫经济上重要的食用牡蛎的水产养殖也受到阻碍。寄生虫感染血球并导致溶血性贫血和组织普遍退化，导致死亡。正在进行的研究工作试图开发出对这种疾病具有抗性的牡蛎。许多州都有运输法规。世界卫生组织将 P. marinus 感染列为应报告的疾病。
