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Free-Living Marine Nematode Communities in San Jorge Gulf, Argentina

机译:阿根廷圣豪尔赫湾自由活动的海洋线虫群落

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摘要

The aim of this study was to investigate the patterns of nematode diversity and community structure in San Jorge Gulf, Argentina, in order to improve knowledge of this key group of organisms. Free-living marine nematodes were sampled at 13 stations in February 2014 during an expedition aboard R/V Coriolis II. We found a total of 188 species (101 of which were new to science) belonging to 98 genera. The statistical results indicated the presence of three different assemblages of free-living marine nematodes distributed spatially in three distinct zones in the gulf: the central part, the outer thermal front at both sides of the entrance, and the south thermal front area. Diversity increased from the coast to the entrance of the gulf, and the highest diversity was found in areas with coarser sediment. Sediment and salinity were the environmental parameters that best matched nematode community distribution.
机译:这项研究的目的是调查阿根廷圣豪尔赫湾的线虫多样性和群落结构模式,以增进对这一关键生物群的了解。 2014年2月,在R / V科里奥利二世R / V上进行的一次探险中,自由活动的海洋线虫在13个站点进行了采样。我们发现了属于98属的188个物种(其中101个是科学新事物)。统计结果表明,在海湾的三个不同区域中,存在三种空间分布的自由活动海洋线虫:中央部分,入口两侧的外热锋和南热锋区。从沿海到海湾入口,物种多样性增加,在沉积物较粗的地区发现多样性最高。沉积物和盐度是最适合线虫群落分布的环境参数。

著录项

  • 来源
    《Oceanography》 |2018年第4期|113-121|共9页
  • 作者单位

    Consejo Nacl Invest Cient & Tecn, IDEAus, Lab Meiofauna Marina LAMEIMA, Inst Diversidad & Evoluc Austral, Puerto Madryn, Chubut, Argentina;

    Consejo Nacl Invest Cient & Tecn, IDEAus, Lab Meiofauna Marina LAMEIMA, Inst Diversidad & Evoluc Austral, Puerto Madryn, Chubut, Argentina;

    UNPSJB, CONICET, Inst Desarrollo Costero Dr HE Zaixso, Ctr Invest & Transferencia Golfo San Jorge CIT, Comodoro Rivadavia, Argentina;

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