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首页> 外文期刊>Journal of Parasitology >Impact of a Caged-Trout Farm on Parasites of Galaxias maculatus in Lake Moreno, Southern Argentina
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Impact of a Caged-Trout Farm on Parasites of Galaxias maculatus in Lake Moreno, Southern Argentina

机译：笼养鳟鱼养殖场对阿根廷南部莫雷诺湖的Galaxias maculatus寄生虫的影响

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摘要

The present study was conducted to determine the impact of a caged-trout farm on the helminth parasites of the wild fish puyen chico (Galaxias maculatus) in Lake Moreno, southern Argentina. Samples of water, fish (G. maculatus), and snails (Heleobia hatcheri) were taken at 4 sampling stations in January 2001. Wild fish were parasitized by 8 helminth species, all of which are endemic in the region; therefore, the farm did not introduce any helminth parasite to G. maculatus. Fish captured near the farm were not infected by the digenean Steganoderma szidati, whereas the abundance of the digenean Acanthostomoides apophalliformis in these fish was significantly lower than that in fish captured away from the farm. This lower abundance may be explained by the absence in this area of the snail H. hatcheri, the parasite's first intermediate host, because of the effect of sediments and ammonium produced by the farm. To our knowledge, this is the first study in the Americas linking fish-farm pollution to helminth parasites in wild fish.
机译：进行本研究是为了确定笼养鳟鱼场对阿根廷南部莫雷诺湖野生鱼类puyen chico（Galaxias maculatus）的蠕虫寄生虫的影响。 2001年1月在4个采样站采集了水，鱼（G. maculatus）和蜗牛（Heleobia hatcheri）的样本。野生鱼被8种蠕虫寄生，这些都是该区域的特有种；因此，该农场没有将任何蠕虫寄生虫引入到斑节对虾中。在养殖场附近捕获的鱼没有受到双基因赤霉病菌的感染，而这些鱼中的第二遗传类Acanthostomoides apophalliformis的丰度明显低于从养殖场捕获的鱼。这种较低的丰度可能是由于养殖场产生的沉积物和铵盐的影响而在该区域中没有蜗牛H. hatcheri（寄生虫的第一个中间寄主）造成的。据我们所知，这是美洲地区第一个将鱼类养殖场污染与野生鱼类的蠕虫寄生虫联系起来的研究。

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    《Journal of Parasitology》 |2005年第3期|p.00000707-00000709|共3页
  • 作者

    Jorge E. Revengaa Patricio F. Torresb Miguel Baiza;

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    aDepartamento de Acuicultura, CRUB, Universidad Nacional del Comahue, Quintral 1250, 8400 Bariloche, Argentina bInstituto de Parasitología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile. jrevenga@bariloche.com.ar;

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