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Ecology and Genetic Structure of Zoonotic Anisakis spp. from Adriatic Commercial Fish Species

机译:人畜共患的Anisakis spp。的生态和遗传结构。来自亚得里亚海商业鱼类

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摘要

Consumption of raw or thermally inadequately treated fishery products represents a public health risk, with the possibility of propagation of live Anisakis larvae, the causative agent of the zoonotic disease anisakidosis, or anisakiasis. We investigated the population dynamics of Anisakis spp. in commercially important fish—anchovies (Anisakis), sardines (Sardina pilchardus), European hake (Merluccius merluccius), whiting (Merlangius merlangus), chub mackerel (Scomber japonicus), and Atlantic bluefin tuna (Thunnus thynnus)—captured in the main Adriatic Sea fishing ground. We observed a significant difference in the numbers of parasite larvae (1 to 32) in individual hosts and between species, with most fish showing high or very high Anisakis population indices. Phylogenetic analysis confirmed that commercial fish in the Adriatic Sea are parasitized by Anisakis pegreffii (95.95%) and Anisakis simplex sensu stricto (4.05%). The genetic structure of A. pegreffii in demersal, pelagic, and top predator hosts was unstructured, and the highest frequency of haplotype sharing (n = 10) was between demersal and pelagic fish.
机译:食用未经加工或未经充分热处理的渔业产品具有公共卫生风险,有可能传播活的茴香茴香幼虫,人畜共患病茴香病或茴香病的病原体。我们调查了Anisakis spp的种群动态。在商业上很重要的鱼中捕获了an鱼(Anisakis),沙丁鱼(Sardina pilchardus),欧洲鳕鱼(Merluccius merluccius),白垩纪(Merlangius merlangus),鲭鱼(Scomber japonicus)和大西洋蓝鳍金枪鱼(Thunnus thynnus)。海上捕鱼场。我们观察到个体寄主和物种之间的寄生虫幼虫数量(1到32)存在显着差异,大多数鱼类的Anisakis种群指数很高或很高。系统发育分析证实,亚得里亚海的商业鱼类已被Anisakis pegreffii(95.95%)和Anisakis simplex sensu stricto(4.05%)寄生。底栖,中上层和顶级捕食者宿主中A. pegreffii的遗传结构是非结构化的,单倍型共享的最高频率(n = 10)在底栖和中上层鱼类之间。

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