| 引用本文： |
-
林宇枫,陈国贵,谷宣,姜成朴,马维,王文卿.东寨港海湾尺度下红树林软体动物时空分布特征及驱动因子[J].广西科学院学报,2021,37(3):204-214. [点击复制]
- LIN Yufeng,CHEN Guogui,GU Xuan,JIANG Chengpu,MA Wei,WANG Wenqing.Temporal and Spatial Distribution of Mangrove Mollusks at Bay Scale and Their Driving Factors in Dongzhaigang Bay[J].Journal of Guangxi Academy of Sciences,2021,37(3):204-214. [点击复制]
|
|
| 摘要: |
| 研究海湾尺度下软体动物时空分布特征及驱动因子，为红树林湿地功能保护和管理提供科学依据。于2020年7月至2021年4月对海南东寨港湾口、湾中、湾顶3个典型红树林地点的软体动物的种类组成、物种多样性和群落结构进行四季调查，运用单因素方差分析和Pearson相关性分析软体动物时空格局及其与水环境因子的关系。结果显示：海湾内软体动物物种丰富，共采集到18科31种，优势种为珠带拟蟹守螺（Cerithidea cingulata）、小翼拟蟹守螺（Cerithidea microptera）、绯拟沼螺（Assiminea latericea）、短拟沼螺（Assiminea brevicula）、印澳蛤（Indoaustriella plicifera）、斯氏印澳蛤（Indoaustriella scarlatoi）等；年平均密度和年平均生物量分别为79.6 ind./m2和78.7 g/m2；Margalef丰富度指数（d）、Pielou均匀度指数（J）和Shannon-Wiener多样性指数（H'）分别为1.220±0.188，0.591±0.078，1.815±0.275。海湾内软体动物的密度和生物量存在显著的时空差异：从空间上来看，密度表现为湾口>湾顶>湾中，生物量表现为湾中>湾口>湾顶；从季节上来看，密度差异表现为春季和冬季高于夏季和秋季，生物量则表现为夏季最高。相关性分析结果表明，水体盐度、总溶解固体与软体动物的密度、生物量存在显著的正相关关系，是软体动物群落时空分布特征的主要驱动因子。 |
| 关键词: 东寨港 海湾尺度 红树林 软体动物 群落结构 时空分布 |
| DOI：10.13657/j.cnki.gxkxyxb.20210928.009 |
| 投稿时间：2021-08-12 |
| 基金项目:海南东寨港国家级自然保护区及广东湛江红树林国家级自然保护区红树植物群落调查项目（XDHT2020609A）资助。 |
|
| Temporal and Spatial Distribution of Mangrove Mollusks at Bay Scale and Their Driving Factors in Dongzhaigang Bay |
|
LIN Yufeng, CHEN Guogui, GU Xuan, JIANG Chengpu, MA Wei, WANG Wenqing
|
| (Key Laboratory of the Coastal and Wetland Ecosystem (Xiamen University), Ministry of Education, College of the Environment & Ecology, Xiamen University, Xiamen, Fujian, 361102, China) |
| Abstract: |
| By studying the temporal and spatial distribution characteristics and driving factors of mollusks at bay scale can provide scientific basis for the protection and management of mangrove wetlands. From July 2020 to April 2021, the species composition, species diversity and community structure of mollusks in three typical mangrove sites (i. e., mouth, middle and head of the bay) in Dongzhaigang Bay were investigated in four seasons. One-way ANOVA and Pearson correlation analysis were used to analyze the temporal and spatial patterns of mollusks and their relationship with water environmental factors. The results showed that there were abundant mollusk species in the gulf, and 31 species belonging to 18 families were collected. The dominant species were Cerithidea cingulata, C. microptera, Assiminea latericea, A. brevicula, Indoaustriella plicifera, I. scarlatoi, etc. Annual average density and biomass were 79.6 ind. /m2 and 78.7 g/m2, respectively. Margalef richness index (d), Pielou evenness index (J) and Shannon-Wiener diversity index (H') were 1.220±0.188, 0.591±0.078 and 1.815±0.275, respectively. There were significant temporal and spatial differences in the density and biomass of mollusks in the bay. From the spatial point of view, the mouth of the bay had the highest mollusk density, followed by the head and the middle of the bay, and the biomass was highest in the middle of the bay, followed by the mouth and the head of the bay. In terms of seasons, the density difference was higher in spring and winter than in summer and autumn, while the biomass was the highest in summer. The results of the correlation analysis showed that there was a significant positive correlation between water salinity and total dissolved solids and the density and biomass of mollusks, which was the main driving factor for the temporal and spatial distribution characteristics of mollusk communities. |
| Key words: Dongzhaigang bay scale mangroves mollusk community structure temporal and spatial distribution |
