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首页> 外文期刊>Parasitology >Site selection of Acanthochondria cornuta (Copepoda: Chondracanthidae) in Platichthys flesus (Teleostei: Pleuronectidae).
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Site selection of Acanthochondria cornuta (Copepoda: Chondracanthidae) in Platichthys flesus (Teleostei: Pleuronectidae).

机译：斜纹夜蛾（Teleostei：截肢科）中的棘角线虫（Copepoda：软骨龙科）的位点选择。

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摘要

Acanthochondria cornuta (Copepoda: Chondracanthidae) (N=4841; prevalence: 80.0%; mean+/-s.d. [range] intensity: 28.8+/-24.0 [1-110] parasites) infected the branchial chambers of the European flounder, Platichthys flesus (L.), (N=210) according to an established spatial pattern. This was independent of host size. Higher intensities resulted, most frequently, in higher numbers of infection sites, probably due to increased intraspecific competition. Preferential infection of the ocular side was supported by the recorded abundance data and reflected, probably, the fish's bottom-dwelling behaviour. As the parasite develops from one stage into another, it seems to migrate towards different sites: the copepodites and pre-adult females occurred, mainly, in the holobranchs; the adults preferred the internal wall (non-gravid/post-gravid females; adult males) or the pseudobranchs (gravid females). The ventilating water current along with the blood supply are suggested as 2 major factors in determining parasite spatial distribution within the chamber. Parasite crowding in a restricted and narrow space of the posterior region of the internal wall was recorded frequently and resembled that previously reported for the plaice. Differences to other host-parasite systems previously studied should relate with the anatomy of the respiratory apparatus. Bigamous females are reported for the first time.
机译：Acanthochondria cornuta（Copepoda：Chondracanthidae）（N = 4841;患病率：80.0％;平均+/- sd [范围]强度：28.8 +/- 24.0 [1-110]寄生虫）感染了欧洲比目鱼Platichthys flesus（ L.）（N = 210）根据已建立的空间模式。这与主机大小无关。较高的强度通常会导致较高的感染部位数量，这可能是由于种内竞争加剧所致。记录的丰度数据支持了眼侧的优先感染，并可能反映了鱼的底栖行为。随着寄生虫从一个阶段发展到另一个阶段，它似乎迁移到了不同​​的地点：足足类和成年雌性主要发生在足部。成人更喜欢内壁（非重度/重度雌性;成年男性）或假支（重度雌性）。建议通风水流和血液供应是确定室内寄生虫空间分布的两个主要因素。经常记录到内壁后部狭窄狭窄区域内的寄生虫拥挤，与先前报道的reported虫相似。与先前研究的其他宿主-寄生虫系统的差异应与呼吸装置的解剖结构有关。首次报道重婚女性。

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