Macrobenthos community patterns in the rocky intertidal zone of Zhongjieshan archipelago
ZHU Si-xi1,2, ZHANG Fei-jun3, GU Sheng-ming4, YANG Hong-li1
1. Marine Science School of Zhejiang Ocean University, Mari-culture equipment and engineering technology of key laboratory of Zhejiang Province, Zhoushan 316004, China; 2. Life Science School of Zhejiang University, Hangzhou 310027, China; 3. Fishery School and Maritime School of Zhejiang Ocean University, Zhoushan 316004, China; 4. Mathematics, Physics and Information Science School of Zhejiang Ocean University, Zhoushan 316004, China
The macrobenthic community was analyzed after collecting the macrobenthic fauna from 8 intertidal stations in Zhongjieshan archipelago(Miaozhihu, Qingbang, Huangxing and Dongfu) during Sept., 2006 and July, 2007.Thirty-four species were found in the stations, including 1 species ofCoelenterata, 3 species of Annelida, 10 species of Crustacean and 20 species of Mollusca.The results of the relative important value analysis indicated that 4 species, such as Tetraclitajaponica, Mytilus edulis and Turb articulatus and so on were dominant species.The results of two-way ANOVA about diversity index of the rock intertidal macrobenthic fauna in Zhongjieshan archipelago showed that the diversity index was not significantly different among stations and seasons, but species richness index(D) differed between spring and autumn.The results of Cluster and MDS analysis of 12 stations from 3 tidal zones and 4 islands indicated that the rocky intertidal macrobenthic community constituted three groups(namely, groupⅠ, ⅡandⅢ).The ABC curves indicated that the macrobenthic fauna in the rocky intertidal zone was not disturbed in Zhongjieshan archipelago.
