海南东寨港5个典型红树林生境的小型底栖动物丰度和干质量生物量及影响因素  

Abundance,Dry Weight Biomass of Meiofauna and Their Influencing Factors in Five Typical Mangrove Habitats in Dongzhai Harbor,Hainan Province

作　　者：高蕙 宋迎春 张烨 李诗川 张艳楠 慕芳红[1] Gao Hui;Song Yingchun;Zhang Ye;Li Shichuan;Zhang Yannan;Mu Fanghong(College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China;Hai Nan Dong Zhai Gang National Nature Reserve Authority,Haikou 571129,China)

机构地区：[1]中国海洋大学海洋生命学院,山东青岛266003 [2]海南东寨港国家级自然保护区管理局,海南海口571129

出　　处：《中国海洋大学学报(自然科学版)》2025年第4期61-70,共10页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(41976100,41576153)资助。

摘　　要：为了解不同典型红树林生境中小型底栖动物的丰度和干质量生物量及其影响因素,本文于2020年11月对东寨港红树林自然保护区5个典型红树林沉积物中的小型底栖动物及其沉积环境进行了调查研究。共发现17个小型底栖动物类群,线虫类和底栖桡足类分别为第一和第二优势类群,相对丰度分别为77.79%和15.65%。小型底栖动物的平均丰度和平均干质量生物量分别为(487.9±134.0)ind./10 cm ^(2)和(415.0±128.1)μg/10 cm ^(2)。小型底栖动物丰度在不同红树林间差异不显著,干质量生物量在不同红树林间差异显著,但丰度和干质量生物量同各环境因子间无显著相关性。5个红树林间小型底栖动物的群落结构存在显著差异,环境因子组合“沉积物偏态系数+叶绿素a浓度”能最好地解释小型底栖动物的群落结构。To understand the community characteristics,such as the abundance and biomass of meiofauna,and their influencing factors in different typical mangrove habitats,an investigation was carried out on understory meiofauna and its sedimentary environment in five typical mangrove forests in Hainan Dongzhaigang National Nature Reserve,China in November 2020.A total of 17 meiofauna groups were identified.Nematoda and Copepoda were the first and second dominant groups with relative abundance of 77.79%and 15.65%.The average abundance and biomass of meiofauna were(487.9±134.0)ind./10 cm ^(2) and(415.0±128.1)μg/10 cm ^(2),respectively.Meiofauna abundance was not significantly different but meiofauna biomass was significantly different among the five mangrove forests.There was no significant correlation between the abundance and biomass of meiofauna and environmental factors.Community structure of meiofauna was significantly different among the five mangrove forests.The combination of“skewness coefficient+content of Chlorophyll a”could best explain the community structure.

关 键 词：红树林 小型底栖动物 群落特征 沉积物 东寨港 海南岛 

分 类 号：Q958.8[生物学—动物学]