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首页> 外文期刊>Journal of Ichthyology >Distribution Patterns and Chorological Analysisof Fish Fauna of the Arctic Region
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Distribution Patterns and Chorological Analysisof Fish Fauna of the Arctic Region

机译:北极地区鱼类动物区系分布格局及年代学分析

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Chorological structure of ichthyofauna of the Arctic Region is described. Distribution patterns of504 fishlike vertebrates and fish species are characterized. One hundred and eightynine range types aredefined, which are combined into eight main categories: 1 - Arctic; 2 - Atlantic–Arctic; 3 - transitionalsubarctic zone of Atlantic sector; 4 - Pacific–Arctic; 5 - transitional subarctic subarctic zone of Pacific sector, 6 - Pacific–Atlantic (amphiboreal); 7 - bipolar; 8 - continental (fresh and brackish waters). Arctic andboreal regions are bordered by transitional (subarctic) zones, which are the areas of intermutual penetrationof faunas. The distribution of most fish species that penetrate into to the Arctic Region from the southernareas is limited by these transitional zones. The benthic fish species prevail in the group of autochthonousArctic species (which includes 64 species or 14% of marine fauna). The demersal fauna of the Arctic preudoabyssal is presented by endemic species. Ten variations of amphiboreal distribution patterns are revealed.Three areas may be defined within the Atlanticsubarctic zone in regard to the fish fauna and range types, i.e.,Labrador–Greenland region, the Barents Sea region, and Icelandic (transitional) region.
机译:描述了北极地区鱼腥藻的时序结构。描述了504种鱼类样脊椎动物和鱼类的分布模式。定义了一百八十个范围类型,将其分为八个主要类别:1-北极; 2-大西洋–北极; 3-大西洋界的过渡亚热带地区; 4-太平洋北极地区; 5-太平洋扇形过渡亚弧带,6-太平洋-大西洋(两栖); 7-双极; 8-大陆性(淡淡咸水)。北极和北方地区以过渡(南亚)带为边界,过渡带是动物间相互渗透的区域。这些过渡区限制了从南部区域进入北极地区的大多数鱼类的分布。底栖鱼类物种主要是本地北极物种(包括64种或14%的海洋动物)。北极深渊的海底动物区系由特有物种提供。揭示了两栖动物分布模式的十种变化。关于鱼类的动物区系和范围类型,可以在大西洋南极地区内定义三个区域,即拉布拉多-格陵兰地区,巴伦支海地区和冰岛(过渡)地区。

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