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首页> 外文期刊>Polar biology >Epibionts of the great spider crab, Hyas araneus (Linnaeus, 1758), in the Barents Sea
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Epibionts of the great spider crab, Hyas araneus (Linnaeus, 1758), in the Barents Sea

机译：巴伦支海的大蜘蛛蟹Hyas araneus（Linnaeus，1758年）的后代

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摘要

Hyas araneus is the most common brachyuran crab in the coastal Barents Sea. Its epibionts were occa sionally examined in 1940-1950s. To obtain modern information about associated organisms living on the crabs and compare new data with previous findings, the species composition, infestation indices, and spatial distribution of macro-epibionts colonizing H. araneus were examined in Dalnezelenetskaya Bay, a small semi-open gulf, in summer 2008-2010. A total of 41 taxa were observed on 48 crabs collected from depths ranging from 5 to 28 m. Red algae Ptilota plumosa (prevalence 39.6%) and Palmaria palmata (37.5%) as well as the copepod Harpacticus uniremis (39.6%) and the tube-dwelling worm Placostegus trident atus (35.4%) predominated on the crabs. Infestation indices were similar in male and female crabs except for the tur bellarian worm Peraclistus oophagus. Comparison with the previous study showed some changes in H. araneus fouling community that may be attributed to the shift of climatic regime or differences in sampling procedures. Presence of the amphipod Ischyrocerus commensalis, a new epibiont of H. araneus in the study area may be associated with introduction of the red king crab Paralithodes camtsch aticus. Infestation indices of common epibionts depend on the crab shell conditions. Localization of epibionts strongly depended on the settlement patterns of larvae and host associate relationships. Typical fouling organisms were found predominantly on the carapaces or limbs, while the majority of mobile species were recorded on the gills. Colonization of great spider crabs is beneficial for the epibiont species, whereas some negative effects for the basibiont could not be excluded.
机译：Hyas araneus是沿海巴伦支海最常见的短毛蟹。在1940-1950年代偶尔检查了它的表皮动物。为了获得有关生活在螃蟹上的相关生物的现代信息并将新数据与以前的发现进行比较，我们在一个小的半开放式海湾Dalnezelenetskaya湾中检查了定居在阿拉伯人嗜血杆菌中的大型表位物种的物种组成，侵染指数和空间分布，在2008-2010年夏季。在从5到28 m的深度收集的48只螃蟹上共观察到41个分类单元。红藻（占39.6％）和棕果（占37.5％）以及co足类钩足菜（39.6％）和管虫蠕虫（三足纲）（35.4％）在螃蟹中占主导地位。雄蟹和雌蟹的侵染指数相似，除了for虫Peraclistus oophagus。与先前研究的比较表明，阿拉伯人种汉族结垢群落发生了某些变化，这可能归因于气候状况的变化或采样程序的差异。研究区的一种新的外生H.araneus的两栖动物Ischyrocerus commensalis可能与引入红色帝王蟹Paralithodes camtsch aticus有关。常见表皮虫的侵染指数取决于蟹壳状况。 Epibion​​ts的本地化在很大程度上取决于幼虫的定居方式和寄主之间的联系。典型的污垢生物主要出现在甲壳或四肢上，而大多数活动物种则记录在the上。大蜘蛛蟹的定殖对表生物种是有益的，而对basibion​​t的某些负面影响则不能排除。

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