上马鞍岩相潮间带贝类生态初步研究

Preliminary study on the fauna of mollusca in intertidal zone of Shangmaan Island

从１９９２～１９９３年４个季度月采集的样品中，共鉴定出贝类６３种，隶属３纲９目２９科。根据它们对温度的适应性质可分为４个类群：暖温带种占４．７６％；亚热带种占４４．４４％；广温广布种占３８．０９％；热带种占１２．６９％，生态特征与福建沿岸相近。阐述了贝类的数量分布、季节变化。还探讨了潮汐、波浪等环境因子对贝类生态分布的影响。

he main ecological characteristic of mollusca in intertidal zone of Shangmaan( reef flat ) were reported The total 63 identified species belong to 29 families By their temperature adaptation, four groups were devided, that is, warm temperate species 476%, subtropical species 4444%, eurytropic species 3809%, tropic species 1269% The ecological character is similar to that in coast waters of Fujian province In addition, its species composition, distribution of biomass, seasonal variation and species diversity, and the relations to tide, wave factors, were analysed