生物多样性 ›› 2018, Vol. 26 ›› Issue (7): 707-716.DOI: 10.17520/biods.2018104

• • 上一篇    下一篇

海南岛西海岸红树林软体动物多样性

马维1, 王瑁1,*(), 王文卿1, 刘毅2, 罗柳青1, 唐朝艺1   

  1. 1 厦门大学环境与生态学院, 福建厦门 361102
    2 莆田绿萌滨海湿地研究中心, 福建莆田 351100
  • 收稿日期:2018-04-08 接受日期:2018-06-10 出版日期:2018-07-20 发布日期:2018-09-11
  • 通讯作者: 王瑁
  • 基金资助:
    国家自然科学基金(31670490;31600436)

Biodiversity of mangrove mollusks in the west coast of Hainan Island, China

Ma Wei1, Wang Mao1,*(), Wang Wenqing1, Liu Yi2, Luo Liuqing1, Tang Chaoyi1   

  1. 1 College of the Environment & Ecology, Xiamen University, Xiamen, Fujian 361102
    2 Putian Green Sprout Coastal Wetlands Research Center, Putian, Fujian 351100
  • Received:2018-04-08 Accepted:2018-06-10 Online:2018-07-20 Published:2018-09-11
  • Contact: Wang Mao

摘要:

为了掌握海南岛西海岸红树林软体动物多样性状况, 本文于2015-2016年对海南岛西海岸6个主要红树林分布区软体动物的种类组成、物种多样性和群落结构的时空变化进行了研究。共采集到软体动物57科201种, 主要优势种有珠带拟蟹守螺(Cerithidea cingulata)、绯拟沼螺(Assiminea latericea)、圆胖樱蛤(Pinguitellina cycladiformis)和斜肋齿蜷(Sermyla riqueti)等。年平均密度与平均生物量分别为324.13 ind./m²和142.88 g/m², 物种数、密度和生物量均高于北部湾沿岸的其他红树林。海南岛西海岸各红树林软体动物的密度和生物量均未呈现明显的季节变化, 软体动物密度存在空间上的显著差异。聚类分析结果显示, 在盐度、土壤结构和红树林群落存在差异的不同红树林, 软体动物种类组成相似度低。多因子AZTI海洋生物指数(M-AMBI)结果表明海南岛西海岸红树林软体动物群落未受明显扰动, 生态环境质量介于一般和优良之间, 但仍受到人类活动与外来植物入侵威胁, 因其在候鸟迁徙中的重要作用, 亟需加强管理与保护。

关键词: 红树林, 软体动物, 海南岛西海岸, 生物多样性, 北部湾

Abstract:

We aimed to understand the mollusk community in the mangrove wetlands of the west coast of Hainan Island. To do so, we explored the temporal and spatial variation in species composition, diversity and community structure of mollusks in six mangrove wetlands from 2015 to 2016. We identified a total of 201 mollusk species belonging to 57 families. The dominant species included Cerithidea cingulata, Assiminea latericea, Pinguitellina cycladiformis, and Sermyla riqueti. The average density and biomass of mollusks were 324.13 ind. /m² and 142.88 g/m², respectively. Observed density, biomass and species richness at west coast of Hainan Island were higher than values recorded in other mangrove wetlands located in the coast of Beibu Gulf. While species richness, density or biomass of mollusks did not vary seasonally, mollusk densities varied spatially in our study. Cluster analysis showed that mangrove wetlands differing in salinity, soil texture and mangrove communities had very dissimilar mollusk communities. The multivariate-AZTI marine biotic index (M-AMBI) value suggested that the mollusk communities of mangrove wetlands located in the west coast of Hainan Island were undisturbed. Although the benthic community was reasonably healthy, they were nevertheless negatively impacted by human activities and invasion of exotic plants. Given that mollusks are important for various bird species that migrate to Hainan Island, we recommend measures such as pollution control and in situ conservation to help preserve the biodiversity of mangrove mollusks in the west coast of Hainan Island.

Key words: mangrove, mollusk, west coast of Hainan Island, biodiversity, Beibu Gulf