Recruitment of cyanobacteria from the sediments in the eutrophic Shanzi Reservoir

Su, Yuping and You, Xuejing and Lin, Hui and Zhuang, Huiru and Weng, Yuan and Zhang, Dayi (2016) Recruitment of cyanobacteria from the sediments in the eutrophic Shanzi Reservoir. Environmental Technology, 37 (6). pp. 641-651. ISSN 0959-3330

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Abstract

This study investigated the impact of four environmental factors on the recruitment of cyanobacteria from bottom sediments in the eutrophic Shanzi Reservoir. Temperature and light were identified as the key determinants for the recruitment of Microcystis and Oscillatoria. Cyanobacteria became dominant at higher temperature (20°C) and light intensity (2000 lx) and Microcystis and Oscillatoria were the major species. Detailed recruitment simulation undertaken with the respective gradients of temperature and light suggested that both Microcystis and Oscillatoria are temperature sensitive and that their critical temperature point was 10°C. However, distinct light impacts were observed only on Microcystis. The recruitment of Oscillatoria was light independent, whereas Microcystis had a positive relationship with light intensity. Physical disturbance promoted Microcystis recruitment and also affected the structure of the recruited cyanobacterial community at the water–sediment interface, based on quantitative polymerase chain reaction (qPCR) and phylogenetic analysis.

Item Type:
Journal Article
Journal or Publication Title:
Environmental Technology
Additional Information:
This is an Accepted Manuscript of an article published by Taylor & Francis in Environmental Technology on 28/07/2015, available online: http://www.tandfonline.com/10.1080/09593330.2015.1076056
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2311
Subjects:
ID Code:
79163
Deposited By:
Deposited On:
22 Apr 2016 07:52
Refereed?:
Yes
Published?:
Published
Last Modified:
28 Oct 2020 04:40