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首页> 外文期刊>Polar biology >King crabs of the western Atlantic sector of Antarctic and adjacent areas: new records, molecular barcode data and distribution (Crustacea: Decapoda: Lithodidae)
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King crabs of the western Atlantic sector of Antarctic and adjacent areas: new records, molecular barcode data and distribution (Crustacea: Decapoda: Lithodidae)

机译：南极西部大西洋地区和邻近地区的帝王蟹：新记录，分子条形码数据和分布（甲壳纲：十足目：石tho科）

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摘要

In many areas of the Antarctic and Subantarc-tic, king crabs records are still fragmentary. New data on the distribution of Lithodidae in the Scotia Sea and the adjacent area of the south-west Atlantic and the south-east Pacific have been collected during exploratory pot fishing in the year 2010 and are also based on some earlier collections that are deposited in Russian museums. The occurrence of Lithodes macquariae off Peter I Island is confirmed. Lithodes confundens, Lithodes turkayi and Neolithodes diomedeae were found in abundance on the Northern Scotia Ridge at a depth of, respectively, 315-775, 315-1,410 and 840-1,300 m. Paralomis formosa was recorded for the first time on the shelf of the South Orkney Islands, which is the southernmost record of this species. New material and literature data demonstrate the existence of two discontinuous lithodid faunas: the Antarctic Pacific fauna that extends up to the western Antarctic Peninsula and the Magellanic-Scotia fauna. The origin of this faunal discontinuity is discussed. The molecular barcodes (subunit I of the mitochondrial cytochrome-oxidase gene-COI) data for N. diomedeae and L. turkayi are provided for the first time. COI gene tree suggests that two main Subant-arctic/Antarctic lineages of Lithodes, i.e. a pair Lithodes santolla/L. confundens and L. turkayi (with possibly closely related Lithodes murrayi and L. macquariae) are phylogenetically distant from each other as well as with low-latitude Pacific and Atlantic species of this genus.
机译：在南极和亚南极的许多地区，帝王蟹的记录仍然是零碎的。 2010年在探索性盆栽捕捞过程中收集了有关斯科舍海以及西南大西洋和东南太平洋邻近地区的石tho科分布的新数据，这些数据也基于一些早期的沉积物。俄罗斯博物馆。证实了彼得一世岛附近的Macquariae Lithodes的发生。在北斯科舍省山脊上发现大量的共生石楠，图尔石楠和新石器甲虫，深度分别为315-775、315-1,410和840-1,300 m。福尔摩根伞首次在南奥克尼群岛的陆架上被记录下来，这是该物种最南端的记录。新的材料和文献数据表明，存在两种不连续的石印动物区系：南极太平洋动物区系一直延伸到西南极半岛和麦哲伦-斯科舍省。讨论了这种动物间断的起源。首次提供了双歧杆菌和图氏乳杆菌的分子条形码（线粒体细胞色素氧化酶基因COI的亚基I）数据。 COI基因树显示了Lithodes的两个主要的亚南极/南极谱系，即一对Lithodes santolla / L。 confundens和L. turkayi（可能与Lithodes murrayi和Macquariae密切相关）在系统发育上彼此远离，并且与该属的低纬度太平洋和大西洋物种相距较远。

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  • 来源
    《Polar biology》 |2015年第2期|231-249|共19页
  • 作者

    Sergey E. Anosov; Vassily A. Spiridonov; Tatiana V. Neretina; Ekaterina F. Uryupova; Dimitry Schepetov;

  • 作者单位

    Russian Federal Institute of Fishery and Oceanography (VNIRO), Verchnyaya Krasnoselskaya, 17, Moscow 107140, Russia;

    PP Shirshov Institute of Oceanology of Russian Academy of Sciences, Nakhimov Avenue, 36, Moscow 117997, Russia;

    NA Pertsov White Sea Biological Station of the Moscow State University, Leninskie Gory, 1 (Building 12), Biological Faculty of Moscow University, Moscow 119234, Russia;

    Russian Federal Institute of Fishery and Oceanography (VNIRO), Verchnyaya Krasnoselskaya, 17, Moscow 107140, Russia;

    NK Koltsov Institute of Developmental Biology of Russian Academy of Sciences, Vavilov Street, 26, Moscow 119334, Russia;

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  • 关键词

    Morphological variation; COI; Divergence; Faunal discontinuity; Southern Ocean; Scotia Sea; Drake Passage;

    机译：形态变化;COI;发散;动物的不连续性;南部海洋;斯科舍海;德雷克通道;

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