[普列谢耶夫湖某些鱼类的体外寄生虫感染]

[Ectoparasite infection of some fish species in lake Pleshcheev].

作者信息

Zharikova T I, Stepanova M A, Zhokhov A E

出版信息

Parazitologiia. 2002 Mar-Apr;36(2):140-5.

PMID:12070962

Abstract

Ectoparasites have been investigated on gills of the ruff, perch, white bream, roach, bream, ide, and European cisco from the Pleshcheevo lake. 13 parasite species were found: Dactylogyrus falcatus, D. distinguendus, D. cornoides, D. cornu, D. sphyrna, D. robustus, D. amphibothrium, Ancyrocephalus paradoxus, Argulus foliaceus, Ergasilus sieboldi, Achtheres percarum, Ancyrocephalus percae, and Rhipidocotyle companula. A reliable negative correlation between the number of monogeneans An. paradoxus and the copepods Ac. percarum on the perch. D. falcatus, the specific monogenean of the bream, was found on the roach. The comparison of the obtained data with those of 1939 has shown the decrease of oxyphilic copepods E. seiboldi, that prove the increasing eutrophication.

摘要

对普列谢耶沃湖中的梅花鲈、鲈鱼、银鲫、拟鲤、鲷鱼、圆腹雅罗鱼和欧洲白鲑的鳃上的外寄生虫进行了调查。发现了13种寄生虫：镰形指环虫、易辨指环虫、角状指环虫、角指环虫、双髻指环虫、粗壮指环虫、双盘指环虫、奇异锚首虫、叶状鱼虱、西氏鱼虱、鲈锚头鳋、鲈锚首虫和扁形绦虫。鲈鱼身上奇异锚首虫的单殖吸虫数量与鲈锚头鳋的桡足类动物数量之间存在可靠的负相关关系。鲷鱼的特定单殖吸虫镰形指环虫在拟鲤身上被发现。将获得的数据与1939年的数据进行比较，结果显示嗜氧桡足类动物西氏鱼虱数量减少，这证明了富营养化程度在加剧。