文章摘要
刘立庆,王宝铎,杨涛.青海湖裸鲤寄生棘头虫的研究[J].水产学报,1981,5(4):295~300
青海湖裸鲤寄生棘头虫的研究
NOTES ON THE PARASITES OF THE NAKED CARP OF QINGHAI HU
  
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作者单位
刘立庆 中国科学院西北高原生物研究所 
王宝铎 中国科学院西北高原生物研究所 
杨涛 中国科学院西北高原生物研究所 
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中文摘要:
      本文记述了棘头虫(Acanthocephala)两新种,它们分别隶属于新棘吻属(Neoechinorhy-nchus)和棘吻属(Echinorhynchus)。同时根据我们的材料,对Петроченко(1956)将粘液腺的排列形式作为属的鉴别特征,将棘吻属(Echinorhynchus)分成为三个属,提出了不同的看法。 青海湖是我国最大的内陆半咸水湖,地处青藏高原,气候寒冷,冰冻期长,水温低,四季雨雪稀少,空气干燥。湖内主要有一种经济鱼——青海湖裸鲤Gymnocypris przewalskiiprzewalskii(Kesser),自1958年开发以来一直为青海省的重要渔业基地。 过去已有科学工作者对青海湖的渔业资源,青海湖裸鲤生物学,浮游生物等方面进行了研究,但至今尚未见到有关青海湖裸鲤寄生虫的报导。作者自1963—1964年进行了系统调查。希能为青海湖裸鲤寄生虫病防治和寄生虫学提供参考资料。 在我国对鱼类寄生棘头虫的研究尚少,Van Oleave(1928),Harada(1938),Achmerow(1959),郎所、李慧珠等(1959),汪溥钦(1966),中国科学院水生生物研究所(1973),左文功等(1974),毛国良(1979),汪溥欣(1980),陶家玉、赵玉如(1980)都报导过中国鱼类寄生棘头虫。
英文摘要:
      The present paper is a description of two species of acanthocephala obtained fromthe naked earp, Gymnocypris przewalskii (Kessler) of Qinghai Hu during the yearsof 1963-1964. The parasite dwells at the anterior part of the intestine of thehost. 1. Neoechinorhynchus qinghaiensis sp. nov. Body elongate, cylindrical. Proboscis short, globular in shape bears three rows ofhooks, ench row having six hooks. The apical hooks are lange and the others small. The male: Body length 1. 82-3.70 mm; width 0.33-0.60 mm. Proboscis length68. 6-114.3μ width 62.9-112.9μ. Testis ellipsoidal. situated in the posterior part ofthe body. The female: Body length 2.86-5.33 mm; width 0.49-0.69 mm. Proboscis leng-th 91.4-114.3μ; width 108.6-137.1μ. Eggs ellipsoidal, 22.0-29.5μ by 16.1μ insize. Location of the parasite: anterior part of the intestine. Discussion: This species differs from the closely related N. rutili (Muller 1780)chiefly in body size, length of proboscis hooks and shape of the eggs. 2. Echinorchus gymnocyprii sp. nov. Body elongate,cylindrical. Proboscis elongate,cylindrical, armed with 14-16longitudinal rows of hooks, each row having 10-11 hooks, unequal in length. The male: Body length 7.28-10.73 mm; width 0.77-1.53 mm. Proboscis length 777. 1-1068.5μ; width 154. 3-354.3μ. Testis situated in theposterior part of the body. The female: Body length 15.14-28.91 mm; width 1.16-1.90 mm. Proboscislength 697.1-1142. 8μ; width 371. 4-457. 1μ. Eggs elongate, fusiform. Location of the parasite: Anterior part of the intestine. Discussion: This species differs from the closely related E. salmonis Muller 1784chiefly in body and egg sizes.
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