硇洲岛潮间带软体动物分布和区系研究

THE STUDY OF FAUNA AND DISTRIBUTION OF MOLLUSC IN THE INTERTIDAL ZONE OF NAO ZHOU ISLAND

对硇洲岛的潮间带软体动物进行了采集调查 ,共鉴定软体动物 14 8种 (未包括头足纲 ) ,分属 5 1科 .其中多板纲 1科 1种 ,腹足纲 33科 84种 ,瓣鳃纲 17科 6 3种 .分析表明 ,其区系特点是以南海亚热带—热带种和东海、南海亚热带种为主要成分 。

Because of their lower ability of movement, molluscs in the interti dal zone are always studied as an indicator of the relationship betw een organisms and environment.From 1998-2000 molluscs in the intertidal zone were c ollected.148 species of benthis,belonging to 51 families,were recognized:1 sp ec ies of Amphineara,84 species belonging to 33 families of Gastropoda,63 species belo nging to 17 families of Lamellibranchia,The results show that the tropical and subtropi cal warm water species distributed in the east China sea and the south China sea have been the most advantageous species in fauna of mollusc on intertial zone o f Nao Zhou island.