Community Structure Characteristics of Crustaceans in North Branch of Yangtze River Estuary
ZHAO Pengpeng1, GAO Chunxia1,2,3,4, CHEN Jinhui1,5, ZHAO Jing1,2,3,4, DAI Libin1, WANG Xuefang1,2,3,4
1. College of Marine Science, Shanghai Ocean University, Shanghai 201306, China; 2. National Distant-water Fisheries Engineering Research Center, Shanghai 201306, China; 3. The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China; 4. Key Laboratory of Oceanic Fisheries Exploitation, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China; 5. Shanghai Aquatic Wildlife Conservation Research Center, Shanghai 202150, China
Abstract：The diversity of crustaceans was evaluated by Margalef abundance(D) index, Shannon-Wiener diversity index(H'), Pielou species evenness(J) and dominant species index(Y) and the community structures of crustaceans were analyzed by hierarchical clustering, nonmetric multidimentional scaling ordination(NMDS), alternating index and migration index as well as abundance-biomass curves in north branch of the Yangtze River estuary based on the survey data collected by bottom trawls from 2011 to 2014. The results showed that a total of 34 benthic crustacean species were found including 16 shrimp species, 17 crab species and 1 stomatopod species, with obvious dissimilarity of dominant species composition in each year, only the most dominant species of prawn Palaemon gravieri and swimming crab Portunus trituberculatus from 2011 to 2014, the others belonging to single-year dominant species. The maximal index value of stock density was observed in 2012, with average biomass of 19.53 kg/h and average number of 1297.69 ind/h. Hierarchical clustering and nonmetric multidimensional scaling analysis revealed that the crustacean community was clustered in 2011, 2013 and 2014, and was separated from that in 2012. Meanwhile, the alternating index and migration index as well as abundance-biomass curves of crustacean community indicated that the less interference and higher stability of crustacean community was observed in 2012.
赵蓬蓬, 高春霞, 陈锦辉, 赵静, 戴黎斌, 王学昉. 长江口北支水域甲壳类群落结构特征[J]. 水产科学, 2020, 39(4): 491-499.
ZHAO Pengpeng, GAO Chunxia, CHEN Jinhui, ZHAO Jing, DAI Libin, WANG Xuefang. Community Structure Characteristics of Crustaceans in North Branch of Yangtze River Estuary. Fisheries Science, 2020, 39(4): 491-499.
2020, Vol. 39 
