Cáceres-Martínez Jorge, Vasquez-Yeomans Rebeca, Padilla-Lardizábal Gloria
Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana Number 3918, Zona Playitas, Ensenada, Baja California 22860, México.
J Aquat Anim Health. 2010 Sep;22(3):141-51. doi: 10.1577/H09-052.1.
The pleasure oyster Crassostrea corteziensis is collected and cultured in Nayarit on the Pacific coast of Mexico, and the improvement and promotion of its culture are seen as a possible source for the economic development of coastal populations. However, information about the parasite fauna of the pleasure oyster is almost completely lacking. A histopathological survey carried out in two estuaries, Boca del Camichín and Pozo Chino, revealed the presence of hypertrophied gametes, rickettsiales-like prokaryotes (RLPs), the protozoan Perkinsus marinus, a protozoan Nematopsis sp., Ancistrocoma-like ciliates (ALCs), Sphenophrya-like ciliates, a turbellarian Urastoma sp., and encysted crustaceans. In general, prevalence and intensity of parasites were similar in both localities except that ALCs and encysted crustaceans were more prevalent in Pozo Chino than in Boca del Camichín. Perkinsus marinus and RLPs seem to represent a more significant risk for the health of pleasure oysters than do the other parasites, and surveillance and control of these parasites are needed for the development of pleasure oyster culture.
美味牡蛎（Crassostrea corteziensis）在墨西哥太平洋沿岸的纳亚里特被采集和养殖，其养殖的改进和推广被视为沿海居民经济发展的一个可能来源。然而，关于美味牡蛎寄生虫群落的信息几乎完全缺失。在两个河口，即博卡德尔卡米钦和波佐奇诺进行的组织病理学调查显示，存在肥大的配子、立克次氏体样原核生物（RLPs）、原生动物派金虫（Perkinsus marinus）、一种线虫样原生动物（Nematopsis sp.）、类Ancistrocoma纤毛虫（ALCs）、类Sphenophrya纤毛虫、一种涡虫（Urastoma sp.）和包囊甲壳类动物。总体而言，两个地点寄生虫的患病率和感染强度相似，只是ALCs和包囊甲壳类动物在波佐奇诺比在博卡德尔卡米钦更普遍。与其他寄生虫相比，派金虫和RLPs似乎对美味牡蛎的健康构成更大风险，美味牡蛎养殖的发展需要对这些寄生虫进行监测和控制。
