Fisheries at Lagrangian fronts

IF 2.2 2区农林科学 Q2 FISHERIES

Fisheries Research Pub Date : 2024-07-30 DOI:10.1016/j.fishres.2024.107125

S.V. Prants

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引用次数: 0

Abstract

This paper reviews the recent progress in the application of Lagrangian methods for detecting potential feeding and fishing grounds and the relationship between the dynamic features with strong gradients of the relevant indicators of water motion, Lagrangian fronts (LFs), and catches of different species of pelagic fish and squid. The locations of the LFs, approximating locations of the ocean features with increased values of the gradients of hydrological parameters, can be calculated by solving advection equations for a large number of virtual passive particles in the altimetric velocity field or in the velocity fields generated by numerical circulation models or obtained using high-frequency radars. The LFs can be easily identified in the near real time, under any weather conditions and in the areas with small contrasts of sea surface temperature. The proximity of catch sites to location of LFs has been shown with the help of statistical tests in different seas and oceans based on catch reports of fishing vessels. The active and passive physical mechanisms at fronts, that may provide favorable conditions for foraging and feeding, are discussed. The paper emphasizes the importance of fronts in marine ecology and sustainable fisheries.

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拉格朗日前沿渔业

本文回顾了应用拉格朗日方法探测潜在觅食地和渔场的最新进展，以及水流运动相关指标梯度较大的动态特征、拉格朗日前沿（LFs）与不同种类中上层鱼类和鱿鱼渔获量之间的关系。拉格朗日锋面的位置近似于水文参数梯度值增大的海洋特征的位置，可以通过求解测高速度场或数值环流模型生成的速度场或利用高频雷达获得的速度场中大量虚拟被动粒子的平流方程来计算。在任何天气条件下，以及在海面温度反差较小的区域，都可以近实时地轻松识别 LF。根据渔船的渔获量报告，在不同海域和大洋的统计测试表明了渔获点与低纬度区位置的接近程度。论文讨论了锋面的主动和被动物理机制，这些机制可能为觅食和摄食提供有利条件。论文强调了锋面在海洋生态学和可持续渔业中的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fisheries Research 农林科学-渔业

CiteScore

4.50

自引率

16.70%

发文量

294

审稿时长

15 weeks

期刊介绍： This journal provides an international forum for the publication of papers in the areas of fisheries science, fishing technology, fisheries management and relevant socio-economics. The scope covers fisheries in salt, brackish and freshwater systems, and all aspects of associated ecology, environmental aspects of fisheries, and economics. Both theoretical and practical papers are acceptable, including laboratory and field experimental studies relevant to fisheries. Papers on the conservation of exploitable living resources are welcome. Review and Viewpoint articles are also published. As the specified areas inevitably impinge on and interrelate with each other, the approach of the journal is multidisciplinary, and authors are encouraged to emphasise the relevance of their own work to that of other disciplines. The journal is intended for fisheries scientists, biological oceanographers, gear technologists, economists, managers, administrators, policy makers and legislators.