| 摘要: |
| 南沙群岛和西沙群岛是我国南海最大的两个群岛。解放后，我国海洋生物工作者对两个群岛进行了多次考察，记录描述了大量海洋生物种类(包括新的分类单元)。近年来以中国科学院为主的我国海洋科学工作者对南沙群岛进行了重点考察，获得了很多重要资料和生物样品，但很多分类学专家却认为对南沙群岛的样品采集和分类学研究还很肤浅，远未达到对西沙群岛的采集和研究深度，这是因为南沙群岛已发现的种类在某些类群上少于西沙群岛，因此被认为南沙群岛的物种多样性程度不如西沙群岛。作者为了解目前两群岛海洋生物的物种研究状况，根据现有资料，对两群岛已描述的底栖生物种类作了比较，为今后加强对南海珊瑚礁的保护提供科学依据。 |
| 关键词: 南沙群岛 西沙群岛 底栖生物 |
| DOI： |
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| 基金项目:中国科学院海洋研究所调查研究报告第4170号。国家“九五”专项（公关）项目专题（97-926-02-03）；中国科学院生物科学与技术特别支持资助项目（Stz98-1-07）。 |
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| COMPARISON BETWEEN BENTHOS OF NANSHA ISLANDS AND XISHA ISLANDS, SOUTH CHINA SEA |
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Li Xinzheng, Wang Yongqiang
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Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| Nansha Islands and Xisha Islands comprise the two largest coral reef archipelagoes in the South China Sea. Biota study on the Xisha Islands started from the 1950’s. Many papers about the fauna and flora there have been published. Biological expeditions to the Nansha Islands started later, and biota study there, compared to that in the Xishas, is also less. The present paper compares with the benthos between the two archipelagoes. The reported families, genera and species number are 309, 663+, 1570 in the Xisha Islands and 309+, 837, 1444 in Nansha Islands. Although benthos study on the Nansha Islands is less than that on the Xisha Islands, the rich species in the Nanshas indicates that the biodiversity there is higher than that in the Xisha Islands. Because stronger and stronger human activities, and global warming, the coral death in the Nansha Islands is much more than before, and the organisms living in coral reefs are also less and less. Research on the biodiversity and protection of coral reefs in the Nansha Islands should be strengthened. |
| Key words: Nansha Islands Xisha Islands benthos |
