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Responses of periphyton morphology, structure, and function to extreme nutrient loading

文献类型： 外文期刊

作者： Lu, Haiying 1 ; Feng, Yanfang 1 ; Wang, Jinhua 4 ; Wu, Yonghong 2 ; Shao, Hongbo 3 ; Yang, Linzhang 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, 71 East Beijing Rd, Nanjing 210008, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agrobiotechnol, 50 Zhongling Rd, Nanjing 210014, Peoples R China

4.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing

关键词： Periphyton;Eutrophication;Microbial community;Biolog;PLFA

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Periphyton have been widely applied in aquaculture systems, however, little information is available on how periphyton respond to such high nutrient levels in water. Thus, changes in the morphological characteristics, community structure, and metabolic function of periphyton under high eutrophic waters were evaluated. The results indicated that the morphology of periphyton was affected by increasing the nutrient concentration of water, which shifted the micromorphology of periphyton from spheriform to filamentous. The periphyton under higher water nutrient levels were able to utilize more carbon source types. Additionally, higher water nutrient levels increased the bacterial and protozoal proportions in periphyton. This study fills the gap in knowledge about the responses of periphytic communities to extremely eutrophic waters. It provides valuable information on the full understanding of the periphyton-nutrient relationship in aquaculture systems, which is beneficial for regulating the microbial species or communities in periphyton by manipulating the nutrient levels in water. (C) 2016 Elsevier Ltd. All rights reserved.

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