海洋渔业2025，Vol.47Issue(2)：212-220,9.
西北太平洋柔鱼渔场与中尺度涡的相对时空分布关系
Relationship between Ommastrephes bartramii fishing grounds and mesoscale eddies in the Northwest Pacific
摘要
Abstract
Mesoscale eddies are marine mesoscale processes characterized by rapid rotation,which are ubiquitous in the global ocean and have a significant impact on marine ecology.As a short-lived pelagic cephalopod,Ommastrephes bartramii population is extremely sensitive to changes in marine environment.O.bartramii fishing ground is located in the Kuroshio-Oyashio transition zone in the Northwest Pacific Ocean,where eddy activities are intense.However,a comprehensive understanding of how mesoscale eddies affect O.bartramii populations in the Northwest Pacific is still lacking.Based on the established daily eddy tracking data set and fishery statistics data in the Northwest Pacific Ocean from 2009 to 2018,the relationship between O.bartramii fishing grounds and the distance from the eddy center was preliminarily analyzed by using the normalization method.The generalized additive model(GAM)was used to explore how the CPUE distribution was affected by fishing position,distance from eddy center and eddy development stage.The results showed as follows:1)The total fishing effort,yield and average CPUE were higher in the anticyclonic mesoscale eddies,and the fishing effort and yield per unit area were also higher,indicating that there was a high abundance of O.bartramii resources in the anticyclonic mesoscale eddies.Meanwhile,CPUE increased with the increase of the distance between the center of cyclonic mesoscale eddies and decreased for the anticyclonic mesoscale eddies.2)The relationship between CPUE and longitude was different between anticyclonic mesoscale eddies and cyclonic mesoscale eddies.CPUE in the cyclonic mesoscale eddies was higher between 150°E and 158°E,while CPUE around anticyclonic mesoscale eddies increased with the increase of longitude,which might be related to the different formation mechanisms of fishing grounds in different sea areas.3)CPUE was negatively correlated with the development stage of cyclonic mesoscale eddies and positively correlated with the development stage of anticyclonic mesoscale eddies.CPUE increased significantly at the end of the development stage of anticyclonic mesoscale eddies,which was analyzed to be related to the temporary upwelling or mixing during the weakening stage of anticyclonic mesoscale eddies.The paper can provide references for resource evaluation and development of O.bartramii fisheries in the Northwest Pacific.关键词
柔鱼/中尺度涡/西北太平洋/广义加性模型Key words
Ommastrephes bartramii/mesoscale eddies/Northwest Pacific/generalized additive model分类
农业科技引用本文复制引用
张聿琛,吴静怡,金鹏超,陈新军,余为..西北太平洋柔鱼渔场与中尺度涡的相对时空分布关系[J].海洋渔业,2025,47(2):212-220,9.基金项目
基于AI智慧解析中尺度涡对东南太平洋柔鱼分布格局的影响机制(A1-3310-24-0002) （A1-3310-24-0002）
国家重点研发计划(2023YFD2401303) （2023YFD2401303）
上海市人才发展资金(2021078) （2021078）
上海市自然科学基金(23ZR1427100) （23ZR1427100）
国家自然科学基金青年基金(41906073) （41906073）
