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首页> 外文期刊>Polar biology >Peracarid composition, diversity and species richness in the area of the Northeast Water polynya, East Greenland (Crustacea, Malacostraca)
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Peracarid composition, diversity and species richness in the area of the Northeast Water polynya, East Greenland (Crustacea, Malacostraca)

机译：东格陵兰东北水多生区（甲壳纲，Malacostraca）中的Peracarid组成，多样性和物种丰富度

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摘要

During the ARK XI-2 expedition with RV Polarstern in September/October 1995, a transect of epibenthic sledge (EBS) samples was taken in the area of the Northeast Water Polynya off the Greenland coast, from the shelf down into the deep sea. A total of 85,304 specimens of Peracarida were collected at seven stations. These individuals comprised 45 families, 103 genera and 180 species. With regard to abundance, Cumacea occurred with highest numbers, 31,269, followed by Isopoda, Amphipoda, Mysidacea and Tanaidacea. Species richness was highest in Amphipoda with 94 species, followed by Isopoda with 43 species, Cumacea with 20 species, Tanaidacea with 15 and Mysidacea with 8 species. Species richness was highest at the shallowest station 37-016 and lowest at the deepest station 37-021, whereas the opposite pattern was found for abundance. Diversity and eveness were highest at the southernmost station and lowest at the deepest station. Amphipoda occurred more frequently at the shallower stations, while Cumacea were very frequent at the deepest station. Numbers of species were lowest for Cumacea at the deepest station, while Amphipoda and Isopoda generally occurred with high species richness at all stations. On the basis of the species composition stations were compared.
机译：在1995年9月/ 10月与RV Polarstern进行的ARK XI-2探险期间，在格陵兰岛沿岸的东北水域Polynya地区，从架子下到深海，采集了表皮爬犁（EBS）样线。在七个站共收集了85,304个Peracarida的标本。这些个体包括45个科，103属和180种。就丰度而言，豆科动物的数量最多，为31,269，其次是等足类，两栖类，Mysidacea和Tanaidacea。物种丰富度最高的有两栖动物（94种），其次是等足类（43种），豆科（20种），塔奈科（15种）和Mysidacea（8种）。物种丰富度在最浅的站点37-016最高，而在最深的站点37-021最低，而其丰度却相反。最南端的站最高，而最深的站的最低，最低。两栖动物在较浅的站点发生得更频繁，而黄瓜花粉在最深的站点发生得很频繁。豆科动物在最深站的物种数量最低，而两栖动物和等足类动物普遍出现在所有站，物种丰富度很高。在物种组成的基础上，对站进行了比较。

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