乐清湾主要游泳动物空间生态位及其分化  

Spatial niche and differentiation of major nekton species in Yueqing Bay, Zhejiang, China

作　　者：张琳琳 蒋日进 印瑞[1] 徐开达 方芳 徐义平[3] 柯爱英 ZHANG Lin-lin;JIANG Ri-jin;YIN Rui;XU Kai-da;FANG Fang;XU Yi-ping;KE Ai-ying(Marine and Fisheries Research Institute,Zhejiang Ocean University,Zhoushan 316021,Zhejiang,China;Zhejiang Institute of Marine Fisheries Research,Ministry of Agriculture Key Research Station for Fisheries Resources of Main Fishing Ground,Key Research Station of Sustainable Utilization for Marine Fisheries Resources,Zhoushan 316021,Zhejiang,China;Yueqing Aquatic Research Institute,Wenzhou 325003,Zhejiang,China;Zhejiang Mariculture Research Institute,Wenzhou 325005,Zhejiang,China)

机构地区：[1]浙江海洋大学海洋与渔业研究所,浙江舟山316021 [2]浙江省海洋水产研究所,农业部重点渔场渔业资源科学观测实验站,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021 [3]乐清市水产科学研究所,浙江温州325003 [4]浙江省海洋水产养殖研究所,浙江温州325005

出　　处：《应用生态学报》2019年第11期3911-3920,共10页Chinese Journal of Applied Ecology

基　　金：国家重点研发计划项目(2018YFD0900904,2018YFC1406300,2017YFA0604904);浙江省重点研发计划项目(2019C02056);乐清湾海洋资源本底调查项目资助~~

摘　　要：基于2016年5月至2017年2月在乐清湾进行的4个航次渔业资源调查数据,计算乐清湾主要游泳动物的相对重要性指数(IRI)、生态位宽度及生态位重叠值(Qik).结果表明:乐清湾全年主要游泳动物(IRI>100)共27种,季节间更替率较高,生态位宽度值差异较大,相对重要性指数与生态位宽度值呈极显著正相关.全年游泳动物的生态位重叠值总体较低,秋季生态位重叠值最高,Qik>0.6的种对有14对,占总种对数的15.4%;春季最低,Qik>0.6的种对有5对,占总种对数的7.6%.冗余分析表明,温度、盐度和浑浊度是影响乐清湾主要游泳动物分布的重要因素,主要游泳动物在这些环境因子上存在生态分化现象.The index of relative importance(IRI),niche breadth,and niche overlap(Qik)of nekton species were calculated using data collected from four fishery resource surveys from May 2016 to February 2017 in Yueqing Bay,Zhejiang Province.The results showed that there were 27 major nekton species(IRI>100)with higher turnover rates across different seasons,while their niche breadth values differed greatly and showed significant positive correlation with IRI.The niche overlaps of nekton were generally low,with the highest overlap value in autumn and the lowest in spring.The total amount of species pairs with niche overlap over 0.6(Qik>0.6)were 14 in the autumn and five in the spring,which represented 15.4%and 7.6%of the total pairs,respectively.Results from the redundancy analysis suggested that the distribution of main nekton species were mainly affected by temperature,salinity and turbidity,which cause ecological differentiation of nekton species.

关 键 词：乐清湾 生态位宽度 生态位重叠 冗余分析 

分 类 号：G86[文化科学—体育训练]