| LI Kaizhi,YIN Jianqiang,HUANG Liangmin,LIN Zhaojin. 2014. Seasonal variations in diversity and abundance of surface ichthyoplankton in the northern South China Sea. Acta Oceanologica Sinica, 33(12):145－154 |
| Seasonal variations in diversity and abundance of surface ichthyoplankton in the northern South China Sea |
| 南海北部上层鱼类浮游生物多样性和丰度的季节变化 |
| Received:September 05, 2013 Revised:July 07, 2014 |
| DOI：10.1007/s13131-014-0533-3 |
| Key words:species composition abundance ichthyoplankton Carangidae northern South China Sea |
| 中文关键词: 种类组成 丰度 鱼类浮游生物 鲹科 南海北部 |
| 基金项目:The Key Innovation Project of Chinese Academy of Sciences under contract No. SQ201308; the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA11020203; the National Natural Science Foundation of China under contract Nos 31101619, 41130855 and 41276159; Chinese Offshore Investigation and Assessment under contract No. 908-01-ST08. |
| Author Name | Affiliation | E-mail | | LI Kaizhi | Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | YIN Jianqiang | Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | jqyin@scsio.ac.cn | | HUANG Liangmin | Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | LIN Zhaojin | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | |
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| Abstract: |
| The objective of this study was to investigate the seasonal variations of ichthyoplankton diversity and abundance in the northern South China Sea based on the data collected during summer, winter and spring. In total, 95 taxa of larval fishes were identified. The greatest number of species was recorded in spring, followed by summer and winter. The number of species was distributed mainly in the coastal waters from the east of Leizhou Peninsula to the southeast of Hainan Island during the surveyed periods of summer and spring, but in the offshore waters during winter. The abundance of larval fish was lowest in winter, increased in spring, and reached the maximum in summer. High abundance of larval fish was generally restricted to coastal waters with the isobaths less than 50 m. Seasonal variations of larval fish richness, abundance and diversity index were significant (P<0.001). Carangidae was the most common and abundant taxon in summer and winter, while Sardinella sp., Thrissa mystax and Leiognathus sp. were dominant in spring. High diversity and abundance of larval fish might be attributed to increased temperature and coastal upwelling in spring and summer. |
| 中文摘要: |
| 本文系统分析了南海西北部陆架区夏季、冬季和春季上层鱼类浮游生物的种类多样性和丰度的变化、分布以及环境特征对其影响.共鉴定95种,春季种数高于夏季和冬季,春夏季在近岸种类多,而冬季外海种类较多.冬季鱼类浮游生物的丰度最低,到春季升高,夏季最高.鱼类浮游生物的种数、丰度和多样性指数季节变化显著(P<0.001).鲹科的种类是夏季和冬季的优势种,而春季沙丁鱼Sardinella sp., 中颌棱鳀Thrissa mystax 和鲾鱼Leiognathus sp.占优势.春季海水温度上升和夏季上升流现象是影响南海西北部陆架区上层鱼卵和仔稚鱼物种多样性和丰度季节变化和空间分布的重要因素. |
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