PATHOLOGY OF 5 SPECIES OF GYRODACTYLUS NORDMANN, 1832 (MONOGENEA)

PATHOLOGY OF 5 SPECIES OF GYRODACTYLUS NORDMANN, 1832 (MONOGENEA)
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DOI:
10.1139/z84-156
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发表时间:
1984-01-01
影响因子:
1.4
通讯作者:
ODENSE, PH
ODENSE, PH
中科院分区:
生物学4区
文献类型:
--
作者:
CONE, DK;ODENSE, PH

文献摘要

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体外寄生虫G. adspersi Cone和Wiles,1983年对毛喉龙(Taautogolabrus adspersus)、毛喉龙(G. avalonia Hanek和Threlfall,1969年在棘腹鱼Gasterosteus aculeatus上发现的三代虫Gyrodactylus,1956年在网纹花鱼Poecilia reticulata上发现的三代虫Gyrodactylus sp.,在鲫鱼Carassius auratus上发现的三代虫G.利用光学显微镜和扫描电子显微镜对萨尔莫氏鲑(Salmo gairdneri)上的salmonis(Yin and Sproston,1948)进行了研究。在前4种中,盘形接合器通过16个位于外周的边缘钩的刀片尖端将其自身附着到宿主皮肤表面,其中2个位于腹侧的钩刀片将下面的上皮压缩成小凹陷。附着和进食造成的组织损伤极小。G.鲑鱼将其边缘钩状镰刀深入宿主表皮,似乎会造成广泛的鳍损伤和皮肤变色。伤口中几乎没有细菌参与的证据,但在体表和G.鲑鱼后者的结果进行了讨论,我们的理解gridactyliasis。
Attachment-site pathology of the ectoparasites G. adspersi Cone and Wiles, 1983 on Tautogolabrus adspersus, G. avalonia Hanek and Threlfall, 1969 on Gasterosteus aculeatus, Gyrodactylus bullatarudis Turnbull, 1956 on Poecilia reticulata, Gyrodactylus sp. on Carassius auratus and G. salmonis (Yin and Sproston, 1948) on Salmo gairdneri was examined using optical microscopy and scanning electron microscopy. In the 1st 4 spp., the disc-shaped haptor attached itself to the host skin surface by means of blade tips of 16 peripherally located marginal hooks, with the 2 ventrally located hamulus blades compressing the underlying epithelium into a small depression. Tissue damage from attachment and feeding was minimal. G. salmonis lodged its marginal hook sickles deep into the host epidermis and appeared to cause extensive fin damage and skin discoloration. There was little evidence of bacterial involvement in the wounds, but bacterial microcolonies were observed on the body surface and haptor of G. salmonis. The latter results are discussed in relation to our understanding of gyrodactyliasis.