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小洋山邻近海域主要游泳动物生态位及种间联结性
引用本文:邓小艳,刘建国,郭朋军,俞存根,张平,郑基,谢旭,苗露.小洋山邻近海域主要游泳动物生态位及种间联结性[J].海洋学报,2018,40(1):96-105.
作者姓名:邓小艳  刘建国  郭朋军  俞存根  张平  郑基  谢旭  苗露
作者单位:1.浙江海洋大学 水产学院, 浙江 舟山 316022
基金项目:国家自然科学基金项目(31270527);企事业委托项目(2014-2015年上海周边海域生物资源秋、冬季调查)。
摘    要:根据2014年秋季和2015年秋季在小洋山邻近海域调查获得的渔业资源资料,运用生态位测定、聚类分析、W检验、基于2×2列联表的χ2检验、联结系数(AC)和共同出现百分率(PC)等方法分析主要游泳动物间的生态关系。结果表明,该海域主要游泳动物共24种,其中优势种为龙头鱼(Harpodon nehereus)、三疣梭子蟹(Portunus trituberculatus)和安氏白虾(Exopalaemon annandalei),这3个种类的生态位宽度较宽;通过生态位宽度聚类分析,可将主要游泳动物分为3组,分别为广生态位种、中生态位种和狭生态位种;种对间生态位重叠值介于0~0.96之间,表明物种利用资源的能力具有相似性,种对间存在一定竞争性;W检验分析得出主要游泳动物总体呈显著正关联;χ2检验显示有150个种对的联结性显著(χ2 ≥ 3.841);联结系数(AC)和共同出现百分率(PC)表明种间联结性较强,总体趋于正相关。

关 键 词:优势种    生态位宽度    生态位重叠    种间联结    主要游泳动物
收稿时间:2017/5/21 0:00:00

Niche and interspecific association of major nekton in Xiao Yangshan adjacent waters
Deng Xiaoyan,Liu Jianguo,Guo Pengjun,Yu Cungen,Zhang Ping,Zheng Ji,Xie Xu and Miao Lu.Niche and interspecific association of major nekton in Xiao Yangshan adjacent waters[J].Acta Oceanologica Sinica (in Chinese),2018,40(1):96-105.
Authors:Deng Xiaoyan  Liu Jianguo  Guo Pengjun  Yu Cungen  Zhang Ping  Zheng Ji  Xie Xu and Miao Lu
Institution:1.College of Fishery, Zhejiang Ocean University, Zhoushan 316000, China2.The national oceanic administration's east China sea prediction center, Shanghai 201206, China3.Zhoushan Bureau of Oceanologyand Fishery, Zhoushan 316022, China
Abstract:Based on the fishery resources survey data of Xiao Yangshan adjacent waters in the autumn of 2014 and 2015, the ecological relationship between the major nekton were analyzed via niche breadth, niche overlap, cluster analysis,W-test, χ2-test, association coefficient (AC) and percentage of co-occurrence (PC). The results showed that there were 24 major nekton species in this area. The dominant species were Harpodon nehereus, Portunus trituberculatus and Exopalaemon annandalei. Among the totally 24 major nekton species, the values of niche breadth of these 3 species larger than other species. The major nekton species can be divided into three groups based on the niche breadth cluster analysis, they were wide niche breadth species, moderate niche breadth and narrow niche breadth species. The values of niche overlap between species varied from 0 to 0.96, which showed that the ability of species to using resources have similarity and there was a certain degree of competition between species. The W-test showed that there were significant positive correlation among the major nekton species. The χ2-test suggested that there were significantly interspecific association for 150 species pairs (χ2 ≥ 3.841). The results of AC and PC revealed that the association of interspecific was strong and the overall tend to be positive correlation.
Keywords:dominant species  niche breadth  niche overlap  interspecific association  major nekton species
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