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Circulation, biogeochemistry and carbon cycling in ocean margins
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Deterministic and neutral processes in shaping planktonic and benthic microeukaryotes in the intertidal zones of southeast Fujian, China
P-M1-06-S
Jie Kong* , Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University
Ying Wang, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University
Qiaoguo Tan, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University
Bangqin Huang, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
Ping Sun, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University
Presenter Email: fromkongjie@163.com |
| Little is known about intertidal microeukaryote communities, the same as the relative effects of deterministic and neutral processes in driving community assembly. By using RNAEmploying high throughput sequencing on rRNA gene transcript, we investigated the diversity and distribution patternbiogeography of both planktonic and benthic microeukaryotes and the relevant effects of environmental and spatial variables in intertidal zones of Xiamen, Fujian Province, China. , and also evaluated the effects of deterministic and neutral processes in driving intertidal microeukaryote communities. Our results showed that sediments might harbor greater diversity than water with observed richness ranging from 53 to 356. Alveolata and Stramenopiles prevailing in water, while Stramenopiles dominating in sediment. Planktonic and benthic microeukaryote communities differed significantly, with benthic communities of different seasons further clustering into separate groups, and size fractionated planktonic communities into different groups. Among all factors measured in this study, Cd, As, Cu and spatial factors played important roles in shaping intertidal microeukaryote community diversity and structure.Combining with environmental parameters measured in this study, effects of environmental and spatial factors on community structure were also evaluated that revealed Heavy metals had important roles in shaping community diversity and structure. However, only small proportions of plankton and benthos community variations could be explained by environmental and spatial factors or neutral community modelIn summary, small proportions of plankton and benthos community variations could be explained by environmental and spatial factors, so did the neutral processes, indicating that the underling mechanisms in shaping intertidal microeukaryote communities were complicated. |
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