中国水产科学2017，Vol.24Issue(5)：953-962,10.DOI:10.3724/SP.J.1118.2017.16339
调水调沙前后黄河口渔业资源结构变化
Composition and distribution of fishery resources before and after the water and sediment discharge regulation in the Yellow River estuary
摘要
Abstract
Water and sediment regulation involves artificially depositing sediments from rivers and reservoirs to the sea,thus increasing the main channel discharge capacity.Based on survey data before and after water and sediment regulation (June and July) in the Yellow River during 2011-2013,we used the index of relative importance (IRI),ANOVA,and multivariate analysis to evaluate the effect of this regulation procedure on fishery resources (species composition,distribution,and dominance) in the Yellow River estuary.We identified 92 species,including 52 fish species.Chaemrichthys stigmatias,Loligo chinensis,and Palaemon gravieri were dominant species,although their exact ranking varied across years.From 2011 to 2013,biomass first increased,then decreased,whereas fishery resources clearly changed in structure before and after water and sediment regulation.Average fishery resource density increased after water discharge and was low near the river mouth.CLUSTER analysis showed that between-year variation in community structure was the greatest,followed by variation resulting from water and sediment regulation,and finally,by variation between sampling sections.Post-regulation changes in water input and nutrient concentration of the Yellow River likely contribute to the variation in species composition and distribution in the region.关键词
黄河口/调水调沙/渔业资源/时空变化/群落结构Key words
Yellow River estuary/water and sediment discharge regulation/fishery resource/spatiotemporal variation/community structure分类
农业科技引用本文复制引用
陈宁,杨艳艳,魏振华,徐宾铎,薛莹,张崇良..调水调沙前后黄河口渔业资源结构变化[J].中国水产科学,2017,24(5):953-962,10.基金项目
公益性行业(农业)科研专项经费项目(201303050) （农业）
青岛海洋科学与技术国家实验室鳌山科技创新计划项目(2015ASKJ02). （2015ASKJ02）
