应用生态学报2018，Vol.29Issue(4)：1352-1358,7.DOI:10.13287/j.1001-9332.201804.033
浙江南部近海小黄鱼资源分布及其与环境因子的关系
Distribution of Larimichthys polyactis and its relationship with environmental factors in offshore water of southern Zhejiang
摘要
Abstract
Based on data collected from four trips of trawl surveys in offshore water of southern Zhejiang in 2015-2016,a generalized additive model was used to analyze the distribution of small yellow croaker (Larimichthys polyactis) and its relationship with environmental factors.The results showed that the highest resource abundance occurred in the summer trip,primarily in Yushan fishing ground with an average density of 500.74 kg · h-1 · km-2.Environmental factors influencing the density and distribution of small yellow croaker changed with season.The effect of environmental factors on the resource density of small yellow croaker was not significant in autumn.In spring,the small yellow croaker mainly distributed in waters with high salinity,while both sea bottom temperature and salinity had negative correlation with resource density of small yellow croaker in summer,and the fish habited in Yushan waters with middle temperature and high salinity.In winter,water temperature had a positive relationship with resource density of small yellow croaker which primarily distributed in waters of outside stations with suitable temperature.Generally,the distribution characteristic of small yellow croaker accorded to its migration habit.It was hard to explain the relations between environmental factors and resource density of small yellow croaker,which needed to further study.The results are helpful for understanding the living behavior and the conservation and management of the small yellow croaker stock in offshore water of southern Zhejiang.关键词
浙江南部近海/小黄鱼/资源分布/环境因子Key words
offshore water of southern Zhejiang/Larimichthys polyactis/resource distribution/environmental factor引用本文复制引用
戴黎斌,田思泉,彭欣,高春霞,叶深,杜晓雪,刘攀..浙江南部近海小黄鱼资源分布及其与环境因子的关系[J].应用生态学报,2018,29(4):1352-1358,7.基金项目
本文由浙江省渔业资源调查(158053)资助 （158053）
This work was supported by the Fisheries Resource Survey of Zhejiang Province,China (158053). （158053）
