| 1. | A total of 543 species of macrobenthos were collected . the specie - number of polychaeta is 147 species , mollusca 182 species , crustacea 144 species , and echinodermata 70 species . the distribution of species of macrobenthos , their biomass and density , and biodiversity indices were described and discussed 除少数种类待鉴定外,两次调查共发现四大类群底栖动物543种,其中多毛类39科147种,软体动物56科182种,甲壳类41科144种,棘皮动物21科70种。 |