大连海滨常见的无脊椎动物物种多样性及其保护性调查研究

为了掌握大连海滨常见无脊椎动物的物种多样性和分布。对夏家河子、黑石礁、旅顺口沿岸和双台沟4个区域的海滨无脊椎动物进行调查，并进行物种多样性分析。结果表明：大连海滨无脊椎动物共有10门18纲136种，以软体动物和节肢动物为主，其中旅顺口沿岸的物种数量最多，为113种，夏家河子和双台沟物种数量较少，但相似度较高，而二者与黑石礁的相似度均较低。对栖息生境的选择不同、海滨的旅游开发、海产品的人工养殖及人类的过度捕捉都会影响海滨无脊椎动物物种的数量和分布，建议采取有效措施合理开发和利用海滨无脊椎动物资源。

Dalian Seaside Common Invertebrate Species Diversity and its Protective Study

In order to know the species diversity and distribution of seashore invertebrate in Dalian. We investigated in the Xiajiahezi, Heishijiao, Lvshunkou Coast and Shuangtaigou Area. The results showed that there were totally 136 species of seashore invertebrate belonging to 18 classes, 10phyla in the four regions and most of them were mollusk and arthropod. Comparison with other areas, species diversity level and population number of invertebrates were 113 species and highest in Lvshunkou Coast. The species number of Xiajiahezi and Shuangtaigou were smaller but higher similarity, and Heishijiao was lower similarity with the others. Different habitats selection, tourism developing, breeding of seafood and over catching would affected the number and distribution of vertebrate species. It has been suggested that the seashore invertebrate resources should be utilized reasonable and protection of the ecological environment should be strenathened.