Colonization dynamics of periphytic diatoms in coastal waters of the Yellow Sea, northern China

Liu Yuanyuan; Zhang Wei; Xu Henglong

doi:10.1007/s13131-014-0466-x

中国北部黄海近岸水体周丛硅藻的群落群集动态特征的研究

doi: 10.1007/s13131-014-0466-x

Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China

基金项目: The National Natural Science Foundation of China under contract No. 41076089.

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- 收稿日期: 2013-03-12
- 修回日期: 2013-09-13

Colonization dynamics of periphytic diatoms in coastal waters of the Yellow Sea, northern China

Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China

摘要

摘要: 2010年5月至6月于中国北部黄海沿岸利用载玻片人工基质方法对周丛硅藻的群落群集动态特征进行了初步研究。样本采自近岸水体水深分别为1m和3m的水层，采样时间间隔分别为1，3，7，10，14，21和28天。结果显示，采自1m和3m水层的硅藻群落具有相似的结构模式，其个体丰度增长均符合逻辑斯蒂增长模型。尽管两水层中硅藻群落拥有相似的分类学组成，但是其群落结构参数的动态以及优势物种演替格局均有差异。1m和3m的群落达到50%最大丰度的时间大致相同（10天），但是1m水深处的物种丰富度和最大丰度要显著高于3m。另外，1 m的物种多样性和均匀度的波动度均高于3m。结果表明黄海北部近岸水体中的周丛硅藻群落群集过程符合逻辑斯蒂增长模型，但随水深的不同群落群集特征有所差异。同时本结果还表明在海洋生态系统中利用周丛硅藻进行生物监测，1m水深处取样是一种更为有效的采样策略。
- 生物评价 /
- 生物膜 /
- 近岸水体 /
- 群集动态 /
- 周丛硅藻
Abstract: The colonization features of periphytic diatoms were studied in coastal waters of the Yellow Sea, northern China from May to June 2010, using glass slides as an artificial substratum. Samples were collected at a time interval of 1, 3, 7, 10, 14, 21 and 28 d from two depths of 1 and 3 m. The dynamics of diatom colonization process had a similar pattern in community structure and fitted the logistic model in growth curve at both depths. The maximum abundance and the time for reaching 50% maximum abundance (10 d) showed no significant differences (P>0.05) between two depths 1 and 3 m. Although the diatom communities represented similar taxonomic composition, they differed in the temporal pattern of structural parameters and in succession dynamics of dominant species between the two layers. The species richness showed significantly higher values during the colonization period more than 14 d, while the species diversity and evenness represented a higher variability with significantly different values (P<0.05) at a depth of 1 m than at a deeper layer. The results suggest that the diatom colonization follows the logistic model growth curve and differs in colonization features between different depths in the coastal waters, and that the sampling strategy at 1 m is more effective to detect the ecological features for bioassessment in marine ecosystems.
- bioassessment /
- biofilm /
- coastal waters /
- colonization dynamics /
- periphytic diatom

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参考文献(25)

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文章访问数: 1204
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中国北部黄海近岸水体周丛硅藻的群落群集动态特征的研究

doi: 10.1007/s13131-014-0466-x

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Colonization dynamics of periphytic diatoms in coastal waters of the Yellow Sea, northern China

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