| 摘要: |
| 于2018年8月对海南东、南海域展开断面调查研究，共获取了18个浮游动物样品，分析了浮游动物的种群分布和群落结构变化，旨在了解不同区域珊瑚礁生态系统的结构与功能。结果表明：海南东、南沿岸共鉴定浮游动物43属62种，浮游幼体23类，分为河口类群、暖水沿岸类群和暖水广布类群共三个生态类群，浮游动物种群组成以桡足类占优势，优势种以亚强次真哲水蚤（Subeucalanus subcrassus）、肥胖箭虫（Sagitta enflata）、异体住囊虫（Oikopleura dioica）、长尾类幼体（Macrura larva）、鱼卵（Fish eggs）、双生水母（Diphyes chamissonis）等种类组成。浮游动物个体丰度、物种丰富度和多样性指数等参数均存在区域性差异，整体呈现为三亚 > 琼海 > 文昌，湿重生物量则为琼海 > 三亚 > 文昌。总体而言，三亚珊瑚礁生态系统的健康状况整体优于文昌和琼海地区，浮游动物种类丰富度与多样性整体呈较高水平。 |
| 关键词: 浮游动物 群落结构 珊瑚礁 海南岛 |
| DOI：10.11759/hykx20190319001 |
| 分类号:Q945-33 |
| 基金项目:海南海水养殖区有毒甲藻资源调查与种质保藏（HNKJHY201601-10） |
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| Characteristics of zooplankton community structure in the eastern and southern offshore coral reef areas of Hainan in summer |
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XIE Fu-wu, LIANG Ji-lin, XING Kong-min, LIU Hong-chen
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Hainan Academy of Ocean and Fisheries Sciences, Haikou, 571126, China
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| Abstract: |
| Details regarding zooplankton were obtained based on transect investigation in the eastern and southern offshore areas of Hainan island in August 2018. Population distribution and community structure of zooplankton were analyzed for understanding the structure and function of coral reef ecosystem in different regions. A total of 62 species of zooplankton among 43 genera and 23 classes of pelagic larvae were identified in the eastern and southern offshore areas, which were categorized into estuarine groups, coastal groups of warm water, widely distributed groups of warm water, and copepods as the dominant groups. The dominant species consisted of Subeucalanus subcrassus, Sagitta enflata, Oikopleura dioica, Macrura larva, fish eggs, and Diphyes chamissonis. Abundance, richness, and diversity indices of zooplankton exhibited regional differences in the order Sanyan > Qionghai > Wenchang, whereas differences in wet weight biomass were in the order Qionghai > Sanya > Wenchang. In conclusion, conditions of the coral reef ecosystem in Sanya were better than those in Wenchang and Qionghai, and species richness and diversity of zooplankton were at a higher level overall. |
| Key words: zooplankton community structure coral reef Hainan island |
