福建漳江口红树林湿地不同生境软体动物调查分析

Investigation and analysis of molluscs in different habitats of mangrove wetland in Zhangjiangkou,Fujian province

为了掌握福建漳江口红树林不同生境条件下软体动物的状况,对漳江口红树林国家级自然保护区内的红树林区、光滩区及互花米草区等不同湿地生境的软体动物种类组成、多样性、密度及生物量进行调查分析。结果表明:福建漳江口红树林国家级自然保护区内的红树林区、互花米草区和光滩区共有软体动物10科14种,其中腹足纲6科10种,双壳纲4科4种;红树林区的软体动物群落和多样性最高,其次是光滩区,互花米草区最低。可见红树林及光滩生境对于维持软体动物多样性具有重要作用,而繁密的互花米草对软体动物不利,应该严格控制互花米草的扩散。

In order to understand the status of molluscs in different habitats of mangrove forest in Zhangjiangkou,Fujian Province,the species composition,diversity,density and biomass of molluscs in typical mangrove forest area,light beach area and Spartina alterniflora area in Zhangjiangkou Mangrove National Nature Reserve were studied.The results showed that a total of 14 species of molluscs from 10 families were collected in the reserve.Among them,there were 6 families and 10 species of Gastropoda and 4 families and 4 species of Bivalvia.The molluscs community and diversity were the highest in mangrove forest area,followed by the light beach area,and the lowest in S.alterniflora area.It can be seen that mangrove and plain habitats play important roles in maintaining mollusc diversity,and dense S.alterniflora is bad for molluscs,so the spread of S.alterniflora should be strictly controlled.