烟台大学学报（自然科学与工程版）2025，Vol.38Issue(2)：186-193,8.DOI:10.13951/j.cnki.37-1213/n.231105
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
摘要
Abstract
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 el-lipse,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 are-a,with the spatial distribution center first moving towards the southwest and then towards the northeast.The stand-ard 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 Au-gust over the past three years has a positive correlation,all exhibiting clustered distributions.Cluster and outlier a-nalysis 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 char-acteristics of T.pacificus resources in the central and southern Yellow Sea from July to August,providing a refer-ence for the future exploitation and utilization of T.pacificus resources.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Key words
Todarodes pacificus/spatiotemporal distribution/spatial autocorrelation/hot spot analysis/south cen-tral Yellow Sea分类
水产学引用本文复制引用
杜成硕,董秀强,任晓强,唐永政,娄方瑞..黄海中南部太平洋褶柔鱼资源时空分布特征[J].烟台大学学报（自然科学与工程版）,2025,38(2):186-193,8.基金项目
山东省自然科学基金资助项目(ZR2021QD110) （ZR2021QD110）
山东近海渔业资源调查与监测项目(HX22KH74,HX23KH116). （HX22KH74,HX23KH116）
