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热带海洋学报

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广西涠洲岛柳珊瑚物种多样性及中国新纪录物种

游力1, 夏非2, 刘昕明1，3，4*   

  1. 1. 广西中医药大学海洋药物研究院, 广西 南宁530200;

    2. 东京大学新领域创成科学研究科, 先端生命科学专攻, 日本 千叶277-8561;

    3. 广西海洋药物重点实验室, 广西 南宁530200;

    4. 海洋中药资源高效利用广西高校工程研究中心, 广西 南宁530200



  • 收稿日期:2026-01-22 修回日期:2026-04-09 接受日期:2026-04-17
  • 通讯作者: 刘昕明
  • 基金资助:
    广西自然科学基金项目(2025GXNSFAA069154)

Gorgonian diversity (Cnidaria: Octocorallia) from Weizhou Island, Guangxi, with descriptions of species newly recorded in China

YOU Li 1, XIA Fei 2, LIU Xinming 1,3,4*   

  1. 1. Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China;

    2. Graduate School of Frontier Sciences, Department of Integrated Bioscience, The University of Tokyo, Kashiwa 277‑8561, Chiba, Japan;

    3. Guangxi Key Laboratory of Marine Drugs, Nanning 530200, China

    4. University Engineering Research Center of High‑Efficient Utilization of Marine Traditional Chinese Medicine Resources, Guangxi University of Chinese Medicine, Nanning 530200, China



  • Received:2026-01-22 Revised:2026-04-09 Accepted:2026-04-17
  • Supported by:

    Guangxi Natural Science Foundation Project (2025GXNSFAA069154)

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摘要： 涠洲岛位于北部湾中部，是我国热带浅海珊瑚礁生态系统的重要分布区，但其柳珊瑚类群的系统调查仍十分有限。为弥补这一研究空白，本研究于2023—2025年对涠洲岛浅水海域(5—20 m)开展了系统的水肺潜水调查，共采集柳珊瑚标本403株。通过观察群体形态、分枝方式及珊瑚虫排列特征，并结合光学显微镜与扫描电子显微镜(SEM)骨针形态分析，对样本进行了系统的分类鉴定。结果共确认柳珊瑚5科11属21种，异常柔鞭珊瑚 Viminella anomala 和细枝柔鞭珊瑚 Viminella petila 为中国首次记录。基于线粒体全基因组获得21种柳珊瑚的系统发育关系，结果表明分子证据与形态结论高度一致。本文对这两种新纪录物种进行了详细的形态描述和骨针图像展示，并首次建立了涠洲岛柳珊瑚物种的区域性分类检索表。本研究显著扩充了我国柳珊瑚多样性资料，对完善中国八放珊瑚类群的系统分类、理解北部湾的区域生物地理格局以及开展相关生态与资源研究具有重要意义。

关键词: 广西涠洲岛, 柳珊瑚, 物种多样性, 分类学, 新纪录物种

Abstract: Weizhou Island, located in the central Beibu Gulf, is one of the most important regions for tropical shallow—water coral reef ecosystems in China; however, systematic investigations of gorgonians in this area remain limited. To fill this gap, comprehensive SCUBA-based surveys were conducted in shallow waters (5—20 m) around Weizhou Island from 2023 to 2025, during which 403 gorgonian specimens were collected. Species identification was based on colony morphology, branching patterns, and polyp arrangement, combined with sclerite analyses using light microscopy and scanning electron microscopy (SEM). In total, 2 species belonging to 11 genera and 5 families were confirmed, including two species newly recorded from China, Viminella anomala and Viminella petila. Phylogenetic relationships among the sampled taxa were reconstructed using concatenated nucleotide sequences of 14 mitochondrial protein-coding genes, showing strong concordance between molecular and morphology-based classifications. Detailed morphological descriptions and SEM images of sclerites are provided for the two newly recorded species. In addition, a regional identification key to the gorgonians of Weizhou Island is presented for the first time. This study substantially enriches current knowledge of gorgonian diversity in China and provides baseline data for improving octocoral systematics, elucidating biogeographic patterns in the Beibu Gulf, and supporting future ecological and resource—related studies.

Key words: Weizhou Island, Guangxi；gorgonians；species diversity；taxonomy；newly recorded species