流沙湾贝类资源调查

对流沙湾潮间带及湾内浅水地带(20°22'103″～20°28'526″N,109°55'341″～109°59'185″E)的贝类资源进行周年调查,定性、定量分析该海湾贝类种类、生态分布、区系性质、群落结构及生物量的季节变化规律。结果表明:在流沙湾采集到的贝类有3纲7亚纲13目42科79属104种,其中帘蛤科24种,牡蛎科、贻贝科各6种,汇螺科和蜒螺科各5种,其他各科均小于5种;贝类组成表现出温带性质,温带种类占绝对优势,该海湾贝类区系属印度—西太平洋的中国-日本亚区,生物量的季节变化明显。

A Survey of Shellfish Resources in Liusha Gulf

The shellfish species,ecological distribution,floral texture,community structure and the seasonal biomass variation in Liusha Gulf are investigated,based on annual qualitative and quantitative survey data of shellfish of intertidal zone and shallow water belt in the same sample point of this gulf(20°22'103″-20°28'526″N,109°55'341″-109°59'185″E) in March,2008 to January,2009.The results showed that the shellfish species composition in Liusha Gulf included 3 classes,7 subclasses,13 orders,42 families,104 species belonging to 79 genera.In terms of species composition,Veneracea has 24 species,Ostreidae and Mytilidae 6 species respectively,Potamididae and Neritidae 5 species respectively,each family of the other rest family contains less than 5 species respectively.According to the characteristics of the shellfish species of this Gulf,the warm-water species are absolute superiority.Considering classification,the shellfish floral texture of Liusha Gulf should belong to China-Japan subtropical subregion under the Indo-West Pacific region.The seasonal variation of shellfish biomass is very obvious.