Shimose Tamaki, Katahira Hirotaka, Kanaiwa Minoru
Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 148, Fukai-Ohta, Ishigaki, Okinawa, 907-0451, Japan.
Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan.
Int J Parasitol Parasites Wildl. 2020 May 22;12:99-104. doi: 10.1016/j.ijppaw.2020.05.007. eCollection 2020 Aug.
Metacercarial cysts of the parasite (Platyhelminthes: Trematoda: Heterophyidae) are frequently found on the pectoral fins and skin of parrotfishes (Labridae: Scarini) inhabiting Okinawan coral reefs in southern Japan. The prevalence of metacercarial cysts in 30 parrotfish species was investigated and compared through a market survey. Although parasite prevalence differed between parrotfishes, all species examined are considered to be suitable hosts. Prevalence was high in (38.5%, n = 13), (33.4%, 2797), (26.6%, 6441), and several other species that share, in part, common feeding habits. Conversely, prevalence was low in (0.4%, 1842), (0.4%, 270), and (0.1%, 8512) which have different feeding habits. Despite a few exceptions, feeding ecology and other indirect behaviors are considered to affect the prevalence of metacercarial cysts in parrotfishes. Taxonomic affiliation and nocturnal mucous cocoon usage are not considered to affect parasite prevalence.
在日本南部冲绳珊瑚礁栖息的鹦嘴鱼（隆头鱼科：唇鱼属）的胸鳍和皮肤上，经常能发现这种寄生虫（扁形动物门：吸虫纲：异形科）的后囊蚴囊肿。通过市场调查，对30种鹦嘴鱼的后囊蚴囊肿感染率进行了调查和比较。尽管不同鹦嘴鱼的寄生虫感染率有所差异，但所有被检查的物种都被认为是合适的宿主。在（感染率38.5%，n = 13）、（感染率33.4%，2797条）、（感染率26.6%，6441条）以及其他部分具有共同摄食习性的几种鹦嘴鱼中，感染率较高。相反，在具有不同摄食习性的（感染率0.4%，1842条）、（感染率0.4%，270条）和（感染率0.1%，8512条）中，感染率较低。尽管有一些例外情况，但摄食生态和其他间接行为被认为会影响鹦嘴鱼后囊蚴囊肿的感染率。分类归属和夜间使用黏液茧不被认为会影响寄生虫感染率。
