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【目的】为给卵形鲳鲹(Trachinotus ovatus)健康养殖提供理论依据和技术支持,调查其养殖过程中鱼体寄生虫种类。【方法】以防城港和北海网箱养殖卵形鲳鲹为对象,通过现场调查、肉眼检查、镜检观察等方法对卵形鲳鲹体表、鳃、内脏等组织进行寄生虫检查并分类鉴定。【结果】共检出5种寄生虫:刺激隐核虫Cryptocaryon irritans、拟德式吸虫Pardeontacylix McIntosh、本尼登虫Benedenia Diesing、淀粉卵甲藻Amyloodinium ocellatum和车轮虫Trichodibna Ehren berg,感染率分别为27.8%,8.1%,3.3%,16.4%,18%。【结论】寄生虫在卵形鲳鲹的养殖过程中存在,且种类繁多,已成为影响卵形鲳鲹健康养殖的主要因素之一。
【Objective】 To provide theoretical basis and technical support for the healthy cultivation of Trachinotus ovatus and to investigate the species of parasites in fish culture. 【Method】 With the methods of on-the-spot investigation, macroscopic examination and microscopic examination, the oocysts of gilts, gills and viscera of ovoid belly were examined by parasites and identified by classification. 【Result】 Five kinds of parasites were detected: Cryptocaryon irritans, Pardeontacylix McIntosh, Benedenia Diesing, Amyloodinium ocellatum and Trichodibna Ehrenberg, the infection rates were 27.8 %, 8.1%, 3.3%, 16.4%, 18%. 【Conclusion】 Parasites exist in the process of oval 鲳 养 breeding, and a wide range, has become one of the main factors affecting the healthy cultivation of oval 鲳 鲹.