| 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 |
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| 作者姓名： | Liu Yuanyuan Zhang Wei Xu Henglong |
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| 作者单位： | Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China |
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| 基金项目： | The National Natural Science Foundation of China under contract No. 41076089. |
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| 摘 要： | 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 repre- sented 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 rep- resented 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 i m is more effective to detect the ecological features for bioassessment in marine ecosystems.
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| 关 键 词： | 沿海水域 中国北方 硅藻 Logistic模型 黄海 海洋生态系统 定植 时间间隔 |
| 收稿时间： | 2013/3/12 0:00:00 |
| 修稿时间： | 2013/9/13 0:00:00 |
Colonization dynamics of periphytic diatoms in coastal waters of the Yellow Sea, northern China |
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| Liu Yuanyuan,Zhang Wei,Xu Henglong.Colonization dynamics of periphytic diatoms in coastal waters of the Yellow Sea, northern China[J].Acta Oceanologica Sinica,2014,33(9):160-165. |
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| Authors: | Liu Yuanyuan Zhang Wei and Xu Henglong |
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| Institution: | Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China |
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| 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. |
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| Keywords: | bioassessment biofilm coastal waters colonization dynamics periphytic diatom |
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