Insights into discriminating environmental quality status using taxonomic distinctness based on a small species pool of ciliated protozoa in marine ecosystems.
Insights into discriminating environmental quality status using taxonomic distinctness based on a small species pool of ciliated protozoa in marine ecosystems.
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DOI：
10.1016/j.scitotenv.2013.08.083
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发表时间：
2014-01
期刊：
影响因子：
--
通讯作者：
Yong Jiang;Henglong Xu;A. Warren
中科院分区：
文献类型：
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作者：
Yong Jiang;Henglong Xu;A. Warren
本研究的目的是确定开发一个协议的可行性，用于评估海洋水质的基础上，在一个小池的浮游纤毛虫的分类相关性。在胶州湾，北方中国的基础上，每两周收集的样品，与环境应力梯度，在1年的周期，每年的数据集。共鉴定出纤毛门2纲5目10科17属60种。在5个目中，Tintinnida主要在种水平上表现出较低的变异性，而其他目（尤其是Strombidida和Choreotrichida，但Strombidium属除外）在更高的分类等级（如科或目）上表现出较高的变异性。Mantel分析表明，纤毛虫组合的空间格局，与tinitinnids和Strombidiumspp。排除，显着相关的总浮游纤毛虫群落在他们对环境状况的反应。基于小种库的平均分类差异度（Δ+）与营养盐浓度的变化呈显著负相关（P< 0.05）。此外，Δ+的配对指数和分类学差异的变化（Λ+）显示出明显偏离预期的分类模式。这些研究结果表明，它是可能的，以评估海洋水质的状况，使用分类的相关性内的一个小池的浮游纤毛虫。
The objective of this study was to determine the feasibility of developing a protocol for assessing marine water quality based on taxonomic relatedness within a small pool of planktonic ciliates. An annual dataset was compiled based on samples collected biweekly at five sites, with a gradient of environmental stress, during a 1-year cycle in Jiaozhou Bay, northern China. A total of 60 species, belonging to 17 genera 10 families, 5 orders and 2 classes of the phylum Ciliophora, were identified. Among five orders, Tintinnida showed a low variability mainly at species level whereas the other orders (especially Strombidiida and Choreotrichida, although with the exception of the genusStrombidium) represented a high variability at higher taxonomic ranks (e.g. family or order). Mantel analyses showed that spatial patterns of the ciliate assemblages, with tinitinnids andStrombidiumspp. excluded, were significantly correlated with those of the total planktonic ciliate communities in terms of their response to environmental status. The average taxonomic distinctness (Δ+) based on the small species pool was significantly negatively correlated with the changes in concentrations of nutrients (P< 0.05). Furthermore, the paired indices of Δ+and the variation in taxonomic distinctness (Λ+) showed a clear departure from the expected taxonomic pattern. These findings suggest that it is possible to assess the status of marine water quality using the taxonomic relatedness within a small pool of planktonic ciliates.