Madhavi R, Triveni Lakshmi T
Department of Zoology, Andhra University, Visakhapatnam, 530 003 India.
J Parasit Dis. 2011 Jun;35(1):66-74. doi: 10.1007/s12639-011-0028-5. Epub 2011 Apr 2.
The metazoan parasite fauna of the Indian mackerel Rastrelliger kanagurta of Visakhapatnam coast, Bay of Bengal comprised 15 species including three species of Monogenea, seven species of Digenea and five species of Crustacea. Digeneans were the dominant members in the parasite spectrum while infections with ectoparasitic monogeneans and crustaceans were rare. The digeneans Opechona bacillaris and Lecithocladium angustiovum which occurred with high prevalence and mean intensity are the typical parasites of the mackerel. The parasitic fauna in general is found to be a reflection of the planktonivorous diet of the host. Except for two species of digeneans, Lecithocladium angustiovum and Aponurus laguncula, all the remaining species of metazoans showed narrow specificity to R. kanagurta, indicating a high degree of host specialization. The parasitological data may prove useful for differentiating stocks of R. kanagurta.
位于孟加拉湾维沙卡帕特南海岸的印度鲭（Rastrelliger kanagurta）的后生动物寄生虫区系由15个物种组成，包括3种单殖吸虫、7种复殖吸虫和5种甲壳动物。复殖吸虫是寄生虫谱中的主要成员，而异寄生单殖吸虫和甲壳动物的感染很少见。高流行率和平均感染强度的复殖吸虫杆菌状前殖吸虫（Opechona bacillaris）和狭卵囊盘吸虫（Lecithocladium angustiovum）是鲭鱼的典型寄生虫。总体而言，寄生虫区系被发现是宿主浮游生物食性的反映。除了两种复殖吸虫，即狭卵囊盘吸虫和拉氏阿彭吸虫（Aponurus laguncula）外，所有其余后生动物物种对印度鲭都表现出狭窄的特异性，表明宿主具有高度的专一性。寄生虫学数据可能有助于区分印度鲭的种群。
