Functional groups of marine ciliated protozoa and their relationships to water quality
Functional groups of marine ciliated protozoa and their relationships to water quality
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海洋纤毛原生动物的功能群及其与水质的关系
DOI：
10.1007/s11356-013-1525-0
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发表时间：
2013-08-01
影响因子：
5.8
通讯作者：
Song, Weibo
中科院分区：
文献类型：
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作者：
Jiang, Yong;Xu, Henglong;Song, Weibo
纤毛虫在沿海沃茨中具有重要的生态作用，尤其是与环境参数的相互作用。为了加深对海洋生态系统中纤毛虫群落功能结构及其与环境条件关系的认识和理解，在中国北方一个半封闭海湾进行了为期12个月的研究。每两周在污染/富营养化程度不同的五个取样站收集一次样品，共收集了120个样品。根据纤毛虫特定的时空分布及其与理化参数的关系，定义了13个功能群（A-M）。其中6个类群（H-M）是污染/富营养区纤毛虫群落的主要贡献者，而其他7个类群（A-G）则是污染较轻地区纤毛虫群落的主要贡献者。暖季（夏、秋）以A、D、G、H、I、K 6个类群为主，寒季（春、冬）以B、C、E、F、J、L、M 7个类群为主。其中，B类（主要为无壳纤毛虫）、I类（主要为无壳纤毛虫）和L类（主要为有壳纤毛虫）是群落的主要组成部分。研究还表明，无壳纤毛虫和锡壳类在群落的结构和功能中扮演着不同的角色。结果表明，纤毛虫群落可能是由几个功能群组成的，以响应环境条件。因此，我们的结论是，这些功能组可能是潜在的有用的生物指示剂的生物评估和海洋栖息地的保护。
Ciliated protozoa (ciliates) play important ecological roles in coastal waters, especially regarding their interaction with environmental parameters. In order to increase our knowledge and understanding on the functional structure of ciliate communities and their relationships to environmental conditions in marine ecosystems, a 12-month study was carried out in a semi-enclosed bay in northern China. Samples were collected biweekly at five sampling stations with differing levels of pollution/eutrophication, giving a total of 120 samples. Thirteen functional groups of ciliates (A–M) were defined based on their specific spatio-temporal distribution and relationships to physico-chemical parameters. Six of these groups (H–M) were the primary contributors to the ciliate communities in the polluted/eutrophic areas, whereas the other seven groups (A–G) dominated the communities in less polluted areas. Six groups (A, D, G, H, I and K) dominated during the warm seasons (summer and autumn), with the other seven (B, C, E, F, J, L and M) dominating in the cold seasons (spring and winter). Of these, groups B (mainly aloricate ciliates), I (aloricate ciliates) and L (mainly loricate tintinnids) were the primary contributors to the communities. It was also shown that aloricate ciliates and tintinnids represented different roles in structuring and functioning of the communities. The results suggest that the ciliate communities may be constructed by several functional groups in response to the environmental conditions. Thus, we conclude that these functional groups might be potentially useful bioindicators for bioassessment and conservation in marine habitats.