黑潮主轴与产卵场位置的叠加态对西北太平洋日本鲭资源补充量影响的模拟研究  

Effects of the superposition state of the Kuroshio and spawning ground location on the resource recruitment of Scomber japonicus in the Northwest Pacific

作　　者：李曰嵩[1,3,4,5] 杨宗达 余为 潘灵芝[2] 张文献 LI Yuesong;YANG Zongda;U Wei;PAN Lingzhi;ZHANG Yu(College of Marine Living Resource Sciences and Management,Shanghai Ocean University,Shanghai 201306,China;East China Sea Forecast Center,State Oceanic Administration,Shanghai 20008l,China;National Engineering Research Center for Oceanic Fisheries,Shanghai 201306,China;Key Laboratory of Sustainable Eaploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306,China;Collaborative Innovation Center for Distant-water Fisheries,Shanghai 201306,China)

机构地区：[1]上海海洋大学海洋生物资源与管理学院,上海201306 [2]国家海洋局东海预报中心,上海200081 [3]国家远洋渔业工程技术研究中心,上海201306 [4]大洋渔业资源可持续开发省部共建教育部重点实验室,上海201306 [5]远洋渔业协同创新中心,上海201306

出　　处：《海洋渔业》2025年第2期202-211,共10页Marine Fisheries

基　　金：国家重点研发计划(2018YFD0900906);国家重点研发计划(2016YFC1400903);国家自然基金联合基金重点项目(U1609202);上海市科委地方院校能力建设计划项目(15320502200)。

摘　　要：为探究黑潮对于西北太平洋日本鲭(Scomber japonicus)输运分布和补充量的具体动力学影响机制,运用基于个体的生物-海洋耦合模型,采取拉格朗日质点追踪技术模拟西北太平洋日本鲭早期生活史过程。结果显示:2008—2016年间的西北太平洋日本鲭的补充量存在较大波动,4月中下旬为每年日本鲭生长补充的关键时期。黑潮主轴与西北太平洋日本鲭产卵场在补充量的关键时期(4月中下旬)的叠加态可以归纳为两种典型情况,即贯穿态与绕行态。贯穿态时日本鲭的最终资源补充量较高,绕行态时则相反。分析认为,贯穿态时,日本鲭仔幼鱼输运分布海域的流速较慢,导致其仔幼鱼向东输送的距离较近,垂向输运的水层深度也较浅,仔幼鱼分布更集中于靠近黑潮一侧,使其所处水温较高,生长率较高,死亡率较低,最终导致资源补充量较高;绕行态时,其动力学机制与贯穿态相反。研究结果可为预测当年西北太平洋日本鲭资源补充量的丰歉情况提供参考。The paper is to study the specific dynamic influence mechanism of the Kuroshio on Scomber japonicus transport distribution and recruitment in the Northwest Pacific.The spatial superposition of the main path of the Kuroshio and the spawning ground of S.japonicus in the Northwest Pacific may reveal the internal dynamic factors of the Kuroshio's influence on the early life history of S.japonicus in the area.In this study,we analyzed the influence of the physical environment in the Northwest Pacific due to the Kuroshio main current shifting on the changes of S.japonicus recruitment,as well as revealed its dynamic internal mechanism according to the typical superposition state of the position of the Kuroshio main current and spawning ground.Thus,it is possible to predict the annual recruitment of S.japonicus in the Northwest Pacific by using the superposition state of Kuroshio path and spawning ground in the middle and late April,and provide a theoretical basis for in-depth study of the dynamic relationship between climate events and the change of fishery resources in the Northwest Pacific.It was found that the recruitment of S.japonicus in the Northwest Pacific fluctuated greatly from 2008 to 2016.In April,the critical period for growth and recruitment of S.japonicus,the superposition state of Kuroshio and the spawning ground in the Northwest Pacific could be summarized into two typical situations:penetration state and detour state.When the Kuroshio flowed through the spawning ground in mid-April,a penetrating state formed,and the final resource recruitment of S.japonicus was generally high;when the Kuroshio meandered southward in mid-April and bypassed waters of the spawning ground,the final resource recruitment of S.japonicus was generally low.At penetration state,the individual transportation was slow,resulting in the short distance of eastward transportation and shallow water depth,and the distribution of the larvae was more concentrated near the Kuroshio side,leading to higher water temperature and higher growth

关 键 词：黑潮主轴 西北太平洋 日本鲭 补充量 基于个体模型 产卵场 

分 类 号：S931[农业科学—渔业资源]