Studies on scleractinian coral community structure characteristics in the southwest seawaters of the Weizhou Island

Liang Wen; Zhou Haolang; Wang Xin; Huang Rongyong; Yu Kefu

doi:10.12284/hyxb2021150

Volume 43 Issue 11

Dec. 2021

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Liang Wen，Zhou Haolang，Wang Xin, et al. Studies on scleractinian coral community structure characteristics in the southwest seawaters of the Weizhou Island[J]. Haiyang Xuebao，2021, 43(11)：123–135 doi: 10.12284/hyxb2021150

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Studies on scleractinian coral community structure characteristics in the southwest seawaters of the Weizhou Island

doi: 10.12284/hyxb2021150

Liang Wen^1
,,
Zhou Haolang^{1
,
,},
Wang Xin¹,
Huang Rongyong^{2, 3},
Yu Kefu^{2, 3}

1.
Guangxi Key Laboratory of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Guangxi Academy of Sciences, Beihai 536000, China
2.
Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning 530004, China
3.
Coral Reef Research Center of China, Guangxi University, Nanning 530004, China

Received Date: 2020-06-22
Rev Recd Date: 2021-07-10

Available Online: 2021-07-30

Publish Date: 2021-12-31

Abstract

Abstract

The community structure of scleractinian corals in the southwest seawaters the of the Weizhou Island was analyzed with the data collected in a survey conducted with the method of line intercept transect from May 14 to 22, 2019. The results showed that 38 species of scleractinian corals in 9 families were found, dominated by mass corals such as porites sp., favites abdita, goniopora stutchburyi etc. The coverage of the living scleractinian corals ranged from 5.20% to 31.20%, the average coverage were 16.66%, higher at the sites far from or close to the shore but with deeper water. The living scleractinian coral had low recruitment rate, few diseases and low mortality rate. Species diversity, dominance and evenness of the scleractinian coral communities were positively correlated one another (p<0.05). The coverage and biodiversity of the living scleractinian corals were higher at the sites where anthropogenic disturbance was less, i.e. closer to the cliff, deeper water, fewer boating and diving etc. The living scleractinian corals closer to sandy beach influenced severely by suspended sediment on eroded coast and diving had the lowest coverage, the highest dominance of the dominant species and relatively lower diversity. Human activities, southwest monsoon, storm surge, suspended sediment on eroded coast and extreme weather are the main influential factors on the coral reef ecosystem in the southwest seawaters of the Weizhou Island.
- Weizhou Island,
- scleractinian,
- community structure,
- species diversity

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References(45)

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