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引用本文:黄丁勇,李元超,王建佳,郑新庆.亚龙湾西岸造礁石珊瑚种类多样性及恢复潜力分析.海洋与湖沼,2020,51(3):444-455.
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亚龙湾西岸造礁石珊瑚种类多样性及恢复潜力分析
黄丁勇1, 李元超2, 王建佳1, 郑新庆1,3
1.自然资源部第三海洋研究所 厦门 361005;2.海南省海洋与渔业科学院 海口 570100;3.福建省海洋生态保护与修复重点实验室 厦门 361005
摘要:
基于2018年12月在亚龙湾沿岸进行的13个站位的珊瑚礁调查,本文分析了该区域造礁石珊瑚的多样性、分布、覆盖率、死亡率和补充量。结果表明,亚龙湾西岸8个站位共发现造礁石珊瑚12科27属55种和11个未定种,其中蜂巢珊瑚科的种类最多,包括9属25种,其次为鹿角珊瑚科,包括3属17种。亚龙湾西岸各站位造礁石珊瑚种类数为12-33种,平均27种;覆盖率为2.8%-22.9%,平均12.9%;以丛生盔形珊瑚(Galaxea fascicularis)、同双星珊瑚(Diploastrea heliopora)和澄黄滨珊瑚(Porites lutea)等团块状珊瑚为主要优势种;种类多样性和空间分布异质性都较高。与2010-2011年相比,亚龙湾西岸造礁石珊瑚平均覆盖率显著下降,优势种也有较大的变化,表明该海域的珊瑚礁已大幅衰退,这可能与偏高的悬浮物含量和沉积速率有关。不过,亚龙湾西岸造礁石珊瑚的补充量为1.6ind./m2,与周边海区相比,有相对较高的自然恢复潜力。
关键词:  三亚  亚龙湾  造礁石珊瑚  多样性  覆盖率  补充量
DOI:10.11693/hyhz20191100220
分类号:P735
基金项目:国家自然科学基金面上项目,41976127号;亚龙湾瑞吉酒店配套游艇码头项目海洋生态环境影响后评估工作,HNXJSY201814号。
ANALYSIS ON DIVERSITY AND POTENTIAL RECOVERY OF SCLERACTINIA CORALS IN THE WEST BANK OF YALONG BAY
HUANG Ding-Yong1, LI Yuan-Chao2, WANG Jian-Jia1, ZHENG Xin-Qing1,3
1.Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China;2.Hainan Academy of Ocean and Fisheries Sciences, Haikou 570100, China;3.Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
Abstract:
Based on the survey of coral reefs at 13 sites conducted in Yalong Bay in December 2018, and the diversity, distribution, coverage, mortality, and recruitment of scleractinian corals were analyzed. Results show that a total of 55 species and 11 undetermined species of scleractinian corals, belonging to 27 genera and 12 families, were found in 8 sites in the west bank. Among them, Family Faviidae had the largest number of species, including 25 species and 9 genera, and followed by Family Acroporidae, including 17 species and 3 genera. The number of scleractinian coral species in the west bank of Yalong Bay was 12-33, in average of 27. The coverage was 2.8%-22.9%, in average of 12.9%. Galaxea fascicularis, Diploastrea helipopra, and Porites lutea were the main dominant species. Both species diversity and spatial distribution heterogeneity were relatively high. Compared with those of 2010-2011, the average coverage decreased significantly, and the main dominant species changed greatly, indicating that the coral reefs in this area had declined dramatically, which may resulted from the relatively high particle matter content and deposition rate. However, recruitment of scleractinian corals in this area was 1.6 ind./m2, indicating a better potential recovery of corals relative to the adjacent sea areas.
Key words:  Sanya  Yalong Bay  scleractinia coral  diversity  coverage  recruitment
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