Scleractinian coral community structure and distribution in the coastal waters surrounding Hainan Island
Scleractinian coral community structure and distribution in the coastal waters surrounding Hainan Island
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海南岛周边海域石珊瑚群落结构及分布
DOI：
10.17520/biods.2017079
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发表时间：
2017
影响因子：
--
通讯作者：
YAO Xuemei
中科院分区：
文献类型：
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作者：
ZHOU Hongying;YAO Xuemei
基于经典形态学和分子分类学，2014-2015年在海南5个不同沿海地区（文昌云龙湾、万宁大洲岛、儋州临墙石岛、昌江沙鱼塘村、三亚鹿回头）共记录到石珊瑚科10科17属55种。蜂科。五个沿海地区珊瑚礁群落结构不同。在海南南部的三亚，分支鹿角珊瑚在珊瑚群落中占主导地位。在海南东部沿海的文昌和万宁，层状和分枝状的Montipora珊瑚是优势类群。相比之下，儋州和昌江西海岸以块状珊瑚Poritadae和Faviidae为主。群落结构分析表明，不同的地理环境调节演替差异。覆盖率与多样性指数值呈正相关，依次为：三亚>文昌>昌江>万宁>儋州。与2005-2010年的数据相比，文昌和万宁的覆盖率和多样性指数值有所上升，三亚和昌江的覆盖率和多样性指数值相对稳定，而儋州的覆盖率和多样性指数值则明显下降。然而，昌江地区石珊瑚的死亡率最高，大部分珊瑚在2015年的最后六个月内死亡。我们认为，人类活动（包括保护性和破坏性活动）极大地影响了珊瑚礁的覆盖率、死亡率和多样性。
Based on the classical morphological and molecular taxonomy, 55 scleractinian coral species, belonging to 17 genera and 10 families, were recorded in five different coastal areas (Yunlong Bay, Wenchang; Dazhou Island, Wanning; Linqiangshi Island, Danzhou; Shayutang Village, Changjiang; Luhuitou, Sanya) of Hainan between 2014 and 2015. The dominant families included Acroporidae, Poritadae and Faviidae. The community structures of coral reefs in the five coastal areas were different. In Sanya, located in the south of Hainan, branching Acropora corals dominated the coral communities. In Wenchang and Wanning, on the eastern coast of Hainan, the laminar and branching Montipora corals were the dominant groups. In contrast, the massive corals Poritadae and Faviidae.dominated the western coast in Danzhou and Changjiang. The analyses of community structure indicated that different geographic environments regulated successional differences. Coverage rates and diversity index values had a positive correlation and were as follows: Sanya > Wenchang > Changjiang > Wanning > Danzhou. Compared with the data obtained between 2005 and 2010, the coverage rates and diversity index values increased in.Wenchang and Wanning and were relatively stable in Sanya and Changjiang, but showed an obvious decrease in Danzhou. However, the death rate of scleractinian corals was the highest in Changjiang, and most of the corals died within the last six months of 2015. In our opinion, human activities (including both protective and destructiveactivities) greatly affected coverage rates, death rates and diversity of the coral reefs.