The coral communities of Yongle atoll: status, threats and conservation significance for coral reefs in South China Sea
The coral communities of Yongle atoll: status, threats and conservation significance for coral reefs in South China Sea
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永乐环礁珊瑚群落：南海珊瑚礁的现状、威胁及保护意义
DOI：
10.1071/mf15110
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发表时间：
2016-01
影响因子：
1.8
通讯作者：
Lin Ziyun
中科院分区：
文献类型：
--
作者：
Zhao Meixia;Yu Kefu;Shi Qi;Yang Hongqiang;Riegl Bernhard;Zhang Qiaomin;Yan Hongqiang;Chen Tianran;Liu Guohui;Lin Ziyun
西沙群岛位于南中国海中部，是该地区四大岛群之一。它们包括40多个岛屿、礁石和珊瑚礁，具有相当大的生态和生物多样性价值，既有内在的价值，也有作为整个南中国海沿海生态系统幼虫来源的价值。永乐环礁是西沙群岛最大、最重要的环礁之一。2013年6月至7月对永乐环礁的海洋生物栖息地进行了详细调查。这项基线调查显示，珊瑚群落处于相对健康的状态。不同地貌生境的平均珊瑚盖度从2%到29%不等。最重要的是分枝珊瑚，其次是结壳和块状生长形式(占珊瑚覆盖面积的48%、29%和17%)。Pocillopora(占样带总盖度的29%)、Porites(19%)、Acropora(17%)和Montipora(16%)是4个优势属。群落分化为4个群落，即下礁坡、上礁坡、外礁平、内礁平和泻湖坡。这项基线调查突出了这些珊瑚礁的生态价值。破坏性捕捞和过度捕捞是目前对这些珊瑚礁最严重的威胁。它们应该受到更多的科学和保护方面的关注。
Xisha Islands are in the central South China Sea and form one of the four large island groups in this region. They include more than 40 islands, reefs and cays, and have considerable ecological and biodiversity value, both intrinsically and as a source of larvae for coastal ecosystems throughout the South China Sea. Yongle atoll is the biggest and one of the most important atolls in the Xisha Islands. The detailed surveys of the marine habitats in the Yongle atoll were conducted from June to July 2013. This baseline survey revealed coral communities in a relatively healthy condition. Mean coral cover of different geomorphic habitats varied from 2 to 29%. Branching corals were most important, followed by encrusting and massive growth forms (48, 29 and 17% of coral cover). Pocillopora (29% of total cover in line transects), Porites (19%), Acropora (17%) and Montipora (16%) were the four dominant genera. Communities differentiated into four clusters, namely, lower reef slope, upper reef slope, outer reef flat, and inner reef flat and lagoon slope. This baseline investigation highlighted the ecological value of these reefs. Destructive fishing and overfishing are presently the most serious threats for these coral reefs. They should receive much more scientific and conservation attention.
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影响因子：
3.7
作者：
Osborne K;Dolman AM;Burgess SC;Johns KA
通讯作者：
Johns KA
DOI：
10.2307/2263895
发表时间：
1946-09
期刊：
--
影响因子：
--
作者：
E. Payne
通讯作者：
E. Payne
影响因子：
1.4
作者：
Zhang Guang-xing
通讯作者：
Zhang Guang-xing
影响因子：
1.5
作者：
P. Jokiel;K. Rodgers
通讯作者：
P. Jokiel;K. Rodgers
影响因子：
3.5
作者：
H. Sweatman;Steven Delean;Steven Delean;C. Syms
通讯作者：
H. Sweatman;Steven Delean;Steven Delean;C. Syms