海洋锋与中尺度涡对中上层渔业资源影响研究进展

A review of the impacts of oceanic fronts and mesoscale eddies on pelagic fisheries resources

海洋锋与中尺度涡普遍存在于全球海洋中,对全球海洋环流以及海洋生态都产生深远的影响。海洋锋和中尺度涡与中上层渔业资源关系密切,对渔业资源生物的索饵、洄游和补充等都产生重要影响。立足于生态系统视角对海洋锋面和中尺度涡进行深入研究能够解决一些大尺度下研究所无法解决的科学问题,并且为基于生态系统的渔业评估、管理奠定基础。本文主要回顾了锋面和中尺度涡对于中上层渔业资源影响的研究进展,简要总结了研究中采用的锋面、涡旋特征提取方法,重点讨论了鱼类对于锋面和中尺度涡的响应及其内在科学机制。分析认为,渔业资源生物对锋面和中尺度涡的响应有多样的变化,推测其受摄食条件及温度适宜性的主导程度较大。建议未来对于海洋锋面和涡旋的渔业生态效应的研究应当:1)共同考虑锋面和涡旋的影响以取得更全面和科学的结果。2)对不同性质和发展阶段的锋面和中尺度涡进行更细化的判别。3)对海洋生物建立更完善的观测、调查和追踪体系。

Oceanic fronts and mesoscale eddies,as two significant features in the open seas,are ubiquitous in the global ocean and make profound impacts on global ocean circulation and ocean ecology.Ocean fronts and mesoscale eddies are closely related to pelagic fishery resources.The foraging,migration,and stock recruitment of fishery resources are all influenced by these mesoscale oceanographic structure.The in-depth study of mesoscale oceanographic processes helps overcome the limitations of the researches of fisheries oceanography at large scales,lay the foundation for ecosystem-based fishery management as well.This paper provided a concise review of the impacts of ocean mesoscale variability,including fronts and mesoscale eddies,on pelagic fishery resources with feature extraction methods applied in researches involved briefly summarized.This review focused on the fish responses to fronts and mesoscale eddies and the underlying scientific mechanisms.The response of fishery resource organisms to fronts and mesoscale eddies varied,and it was speculated that they were dominated by feeding conditions and temperature suitability.The suggestions for the future research on the ecological effects of ocean fronts and eddies should be as follows:1)considering the effects of fronts and mesoscale eddies together to obtain more comprehensive results;2)making a more detailed discrimination of fronts and mesoscale eddies of different properties and development stages;3)establishing a more complete observation,investigating and tracking system for marine organism.