基于概率模型的长江口鱼类空间共现模式分析  

An analysis of spatial co-occurrence pattern of fish species of Yangtze River estuary based on probabilistic model

作　　者：吴建辉 王家启[2,4,5] 戴小杰 田思泉 刘健[3] 陈锦辉 王学昉[2,4,5,1] WU Jianhui;WANG Jiaqi;DAI Xiaojie;TIAN Siquan;LIU Jian;CHEN Jinhui;WANG Xuefang(College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;Superintendence Department of ShanghaiYangtze Estuarine Nature Reserve for Chinese Sturgeon, Shanghai 200092, China;National Data Center for Distant-WaterFisheries of China , Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministryof Education, Shanghai 201306, China;National Distant-Water Fisheries Engineering Research Center,Shanghai 201306, China)

机构地区：[1]国家远洋渔业工程技术研究中心,上海201306 [2]上海海洋大学海洋科学学院,上海201306 [3]上海市长江口中华鲟自然保护区管理处,上海200092 [4]中国远洋渔业数据中心,上海201306 [5]上海海洋大学大洋渔业可持续开发教育部重点实验室,上海201306

出　　处：《南方水产科学》2019年第1期1-9,共9页South China Fisheries Science

基　　金：上海市科委地方能力建设项目(18050502000);长江口中华鲟增殖放流跟踪监测和效果评估项目(S170062)

摘　　要：根据2012—2014年长江口的渔业资源调查数据,采用概率模型、网络分析方法对长江口鱼类群落物种空间共现模式及影响因素进行综合分析。结果表明,长江口鱼类群落模式主要为物种的随机共现,群落构建中以中性元素的影响占主导地位,环境变化驱动的随机因素对种间共现的影响大于种间相互作用;种间共现模式有显著的季节差异,这种季节差异主要与海洋洄游型鱼类和河口定居型鱼类的季节更替有关;高物种权度和中间中心性种类的季节性更替影响种间共现模式的随机性;棘头梅童鱼(Collichthys lucidus)对群落内信息交换的控制能力较强,在长江口鱼类群落中处于核心地位。Based on the data of fishery resources surveys in the Yangtze River estuary from 2012 to 2014, the spatial co-occurrence patterns and influencing factors of fish communities in that area were analyzed by using probability model and network analysis method. The results show that the fish community pattern in the Yangze River estuary is mainly the random co-occurrence of species. The influence of neutral elements was dominant in community construction, and the effect of random factors driven by environmental change on interspecific co-occurrence was greater than that of interspecific interaction. There was significant seasonal difference in the patterns of interspecific co-occurrence, which was mainly related to the seasonal changes of migratory marine fish and estuarine sediment fish. The seasonal replacement of fish species with high weighted degree and betweenness centrality might also have caused the high number of randomly associated pairs of species. It is also shown that Collikithys lucidus has strong ability to control information exchange within the community and is at the core of the fish community structure in the Yangtze River estuary.

关 键 词：鱼类种间共现 成对概率分析 网络分析方法 群落构建 长江口 

分 类 号：S932.4[农业科学—渔业资源]