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首页> 外文期刊>Estuarine Coastal and Shelf Science >Seasonal forcing of image-analysed mesozooplankton community composition along the salinity gradient of the Guadalquivir estuary
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Seasonal forcing of image-analysed mesozooplankton community composition along the salinity gradient of the Guadalquivir estuary

机译：瓜达尔基维尔河河口盐度梯度下图像分析的中游浮游动物群落组成的季节性强迫

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摘要

The composition and distribution of the mesozooplankton was studied monthly from April 2008 to June 2009 in the Guadalquivir estuary using a fast image analysis technique as well as with traditional microscope counting. The mesozooplankton showed a very clear temporal and spatial pattern with peaks of abundance in late-Spring/early-Summer 2008 and Spring 2009 in the inner estuary. The abundances peaked at 135 × 10~3 ind. m~(-3). Calanipeda aquaedulcis was the most abundant species in the fresh and brackish waters (salinity between 0.5 and 7), accounting in many cases for up to 100% of the individuals. Acartia clausi instead was identified as the most abundant species in the middle part of the estuary (salinity between 10 and 30). Cyclopoida of the family Cyclopidae (possibly Acanthocyclops spp.) were occasionally abundant there as well as some species of freshwater Cladocera. At the mouth, the meso-zooplanktonic community included appendicularians, chaetognaths, copepods and Cladocera. Canonical Correspondence Analysis (CCA) indicates that the changes observed in the taxonomic composition along the estuary were strictly correlated with the salinity gradient. Furthermore, no evidence of seasonal species substitution was observed in the Guadalquivir estuary, whereas a clear spatial displacement of C. aquaedulcis and A. clausi populations was observed after large discharges from the dam in Alcala del Rio.
机译：使用快速图像分析技术以及传统的显微镜计数技术，从2008年4月至2009年6月在瓜达尔基维尔河口每月对中层浮游动物的组成和分布进行研究。中游浮游动物显示出非常清晰的时空格局，在内河口的2008年春末/初夏和2009年春季时出现了丰度峰值。丰度在135×10〜3 ind达到峰值。 m〜（-3）。淡水Calanipeda aquaedulcis是淡水和微咸水域中最丰富的物种（盐度介于0.5和7之间），在许多情况下占最多100％。相反，青car鱼被确定为河口中部最丰富的物种（盐度在10至30之间）。那里的Cyclopidae家族的Cyclopoida（可能是Acanthocyclops spp。）以及一些淡水的Cladocera都非常丰富。在口中，中超动物共生社区包括阑尾生物，木贼，co足类动物和克拉多菌。典范对应分析（CCA）表明，沿河口分类学组成的变化与盐度梯度严格相关。此外，在瓜达尔基维尔河河口没有观察到季节性物种替代的证据，而在Alcala del Rio的大坝泄洪后，观察到了水产C. aededulcis和A. clausi种群的明显空间移位。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2014年第5期|244-254|共11页
  • 作者

    Simone Taglialatela; Javier Ruiz; Laura Prieto; Gabriel Navarro;

  • 作者单位

    Department of Ecology and Coastal Management, Instituto de Ciencias Marinas de Andalucia, Consejo Superior de Investigaciones Cientificas, 11510 Puerto Real, Cadiz, Spain;

    Department of Ecology and Coastal Management, Instituto de Ciencias Marinas de Andalucia, Consejo Superior de Investigaciones Cientificas, 11510 Puerto Real, Cadiz, Spain;

    Department of Ecology and Coastal Management, Instituto de Ciencias Marinas de Andalucia, Consejo Superior de Investigaciones Cientificas, 11510 Puerto Real, Cadiz, Spain;

    Department of Ecology and Coastal Management, Instituto de Ciencias Marinas de Andalucia, Consejo Superior de Investigaciones Cientificas, 11510 Puerto Real, Cadiz, Spain;

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  • 正文语种 eng
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  • 关键词

    zooplankton; estuarine species; Spanish estuaries; Calanipeda aquaedulcis; Acartia clausi; automatic classification; ZooImage;

    机译：浮游动物河口种类;西班牙河口;兰car螨自动分类;ZooImage;

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