闽江口梅花港潮间带贝类动物群落生态研究

Commonity Ecology of Mollusca on Intertidal Zone in Meihua Harbour of Min River Estuary

闽江口梅花港潮间带共发现贝类１５种．优势种为短拟沼螺（Ａｓｉｍｉｎｅａｂｒｅｖｉｃｕｌａ），群落的季节性变化明显受其动态影响．群落的结构特征是低多样性和低均匀度，而有大的优势度．除了冬季之外，该群落结构的季节性变化不明显．优势种短拟沼螺的个体空间分布为群聚型．

species of mollusca are identified on the intertidal zone in Meihua harbour of Min River estuary. Seasonal changes of the community were clearly controlled by the dominant species Assiminea brevicula .Community structure was characterized by fewer species,lower diversity (H′),lower evenness (E) and higher dominance (d).The distribution pattern of Assiminea brevicula is aggregated.