Sardella N H, Ré M E, Timi J T
Laboratorio de Parasitología, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Argentina.
J Parasitol. 2000 Oct;86(5):1107-13. doi: 10.1645/0022-3395(2000)086[1107:TNASAA]2.0.CO;2.
During a long-term study carried out between 1981 and 1996 on the biological and fishery aspects of octopuses inhabiting the Gulfs of San Matías, San José, and Nuevo, Patagonia, Argentina, 2 new species of Aggregata (Apicomplexa: Aggregatidae) were found in the digestive tracts of Octopus tehuelchus d'Orbigny, 1834 (prevalence 72%) and Enteroctopus megalocyathus (Gould, 1852) (prevalence 77%). Both species can be distinguished from other congeners on the basis of their hosts, the diameters of sporocysts, and number and length of sporozoites. Despite overlap in the distributions of the two hosts species in the area covered in this study, both Aggregata new species exhibited high host specificity.
1981年至1996年期间，在阿根廷巴塔哥尼亚圣马蒂亚斯湾、圣何塞湾和新湾开展了一项关于栖息在这些海湾的章鱼生物学和渔业方面的长期研究，在1834年的德氏章鱼（患病率72%）和1852年的大杯真蛸（患病率77%）的消化道中发现了2种新的艾美球虫属（顶复门：艾美球虫科）物种。这两个物种都可以根据其宿主、孢子囊直径以及子孢子的数量和长度与其他同类物种区分开来。尽管本研究覆盖区域内的两种宿主物种分布存在重叠，但这两种新的艾美球虫属物种都表现出高度的宿主特异性。
