黄海中南部太平洋褶柔鱼资源时空分布特征  

Spatial and Temporal Distribution Characteristic of Todarodes pacificus Resources in Central and Southern Yellow Sea

作　　者：杜成硕 董秀强 任晓强 唐永政[1] 娄方瑞 DU Chengshuo;DONG Xiuqiang;REN Xiaoqiang;TANG Yongzheng;LOU Fangrui(School of Ocean,Yantai University,Yantai 264005,China;Shandong Fisheries Development and Resources Conservation Center,Yantai 264003,China;Yantai CIMC Blue Ocean Technology Co.,Ltd,Yantai 264003,China)

机构地区：[1]烟台大学海洋学院,山东烟台264005 [2]山东省渔业发展与资源养护总站,山东烟台264003 [3]烟台中集蓝海洋科技有限公司,山东烟台264003

出　　处：《烟台大学学报(自然科学与工程版)》2025年第2期186-193,共8页Journal of Yantai University(Natural Science and Engineering Edition)

基　　金：山东省自然科学基金资助项目(ZR2021QD110);山东近海渔业资源调查与监测项目(HX22KH74,HX23KH116)。

摘　　要：为研究黄海中南部太平洋褶柔鱼资源时空分布特征,基于2021—2023年间7—8月鱿鱼资源调查数据,运用重心迁移轨迹模型、标准差椭圆和空间自相关分析法对该海域太平洋褶柔鱼资源时空分布特征进行了比较分析。结果显示:7—8月黄海中南部太平洋褶柔鱼资源时空分布表现为较广的聚集性;2021年主要聚集在调查海域中部偏东方,2022年和2023年主要聚集在调查海域的中部偏西方,空间分布重心先向西南方向进行了移动,后又向东北方向进行了移动。2021年和2022年的资源分布的标准差椭圆分布方向及分布范围都不相同,2022年和2023年的资源分布的标准差椭圆分布方向和分布位置基本相同,但2023年的分布范围大一些,说明2023年的资源分布较2022年的离散。全局空间自相关性分析表明,3年间7—8月太平洋褶柔鱼资源分布存在正相关性,都表现为聚集分布;聚类和异常值分析以及空间热点分析均表明太平洋褶柔鱼资源有较大的聚集性,2021年高值和热点聚集在调查海域的中部偏东方,2022年和2023年高值和热点聚集在调查海域的中部偏西方,与太平洋褶柔鱼的资源分布及重心轨迹相符。本研究的结果有助于明晰7—8月黄海中南部的太平洋褶柔鱼资源的分布特征,为往后太平洋褶柔鱼资源的开发利用提供参考。To study the spatiotemporal distribution characteristics of Todarodes pacificus resources in the central and southern Yellow Sea,this paper employed the center of gravity migration trajectory model,standard deviation ellipse,and spatial autocorrelation analysis methods to analyze the spatiotemporal distribution characteristics of T.pacificus resources in this sea area based on squid resource survey data from July to August in the years 2021 to 2023.The results indicate that the spatiotemporal distribution of T.pacificus resources in July and August in the central and southern Yellow Sea shows a broad aggregation.In 2021,the main aggregation was in the east-central part of the survey sea area,while in 2022 and 2023,it was primarily in the west-central part of the survey sea area,with the spatial distribution center first moving towards the southwest and then towards the northeast.The standard deviation ellipse of resource distribution in 2021 and 2022 differed in direction and range,whereas in 2022 and 2023,the direction and location of the resource distribution’s standard deviation ellipse were essentially the same,but the distribution range was larger in 2023,indicating a more dispersed distribution of resources in 2023 than in 2022.Global spatial autocorrelation analysis showed that the distribution of T.pacificus resources in July and August over the past three years has a positive correlation,all exhibiting clustered distributions.Cluster and outlier analysis as well as spatial hotspot analysis all indicated a significant aggregation of the T.pacificus resources.In 2021,high values and hotspots were clustered in the east-central part of the survey area,while in 2022 and 2023,high values and hotspots were clustered in the west-central part of the survey area,consistent with the distribution and barycentric trajectory of the T.pacificus resources.The results of this study help to clarify the distribution characteristics of T.pacificus resources in the central and southern Yellow Sea from July to August,provid

关 键 词：太平洋褶柔鱼 时空分布 空间自相关 热点分析 黄海中南部 

分 类 号：S932[农业科学—渔业资源]