Bottom-Trawling Footprint Changed as Fishery Shifted From Hake to Shrimp

IF 2 3区农林科学 Q2 FISHERIES

Fisheries Management and Ecology Pub Date : 2025-01-05 DOI:10.1111/fme.12793

Laura C. Florez, Matías Ocampo Reinaldo, Guillermo M. Svendsen, Raúl A. González, María Alejandra Romero

{"title":"Bottom-Trawling Footprint Changed as Fishery Shifted From Hake to Shrimp","authors":"Laura C. Florez, Matías Ocampo Reinaldo, Guillermo M. Svendsen, Raúl A. González, María Alejandra Romero","doi":"10.1111/fme.12793","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Crustacean fisheries have increased worldwide, leading to changes in fishing practices. In San Matias Gulf, Argentina, the Patagonian red shrimp replaced Argentine hake as the main target since 2012. We analyzed this shift from 2004 to 2020 using vessel monitoring systems and landings. Fishing positions were identified using the speed rule. Gravitational centers of fishing intensity were used to assess seasonal spatial changes of the fleet, and bottom-trawling footprint was used to quantify the area of the seabed affected. Landings were pooled monthly to assess multivariate changes in landing composition. Previously concentrated around a frontal system, the fleet moved northward between 2014 and 2020, while reducing hake landings but increasing shrimp landings. The total area trawled did not change significantly, but the footprint nearly doubled. Our results can be used for fishery management by increasing understanding of spatial and temporal changes in fishing strategies for policymakers.</p>\n </div>","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"32 4","pages":"174-185"},"PeriodicalIF":2.0000,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fisheries Management and Ecology","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/fme.12793","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FISHERIES","Score":null,"Total":0}

引用次数: 0

Abstract

Crustacean fisheries have increased worldwide, leading to changes in fishing practices. In San Matias Gulf, Argentina, the Patagonian red shrimp replaced Argentine hake as the main target since 2012. We analyzed this shift from 2004 to 2020 using vessel monitoring systems and landings. Fishing positions were identified using the speed rule. Gravitational centers of fishing intensity were used to assess seasonal spatial changes of the fleet, and bottom-trawling footprint was used to quantify the area of the seabed affected. Landings were pooled monthly to assess multivariate changes in landing composition. Previously concentrated around a frontal system, the fleet moved northward between 2014 and 2020, while reducing hake landings but increasing shrimp landings. The total area trawled did not change significantly, but the footprint nearly doubled. Our results can be used for fishery management by increasing understanding of spatial and temporal changes in fishing strategies for policymakers.

查看原文本刊更多论文

海底拖网捕捞足迹随着渔业从鳕鱼转向虾而改变

甲壳类渔业在世界范围内增加，导致捕捞方式发生变化。在阿根廷的圣马蒂亚斯湾，自2012年以来，巴塔哥尼亚红虾取代阿根廷鳕鱼成为主要目标。我们使用船舶监测系统和登陆分析了从2004年到2020年的这种转变。捕鱼位置是用速度规则确定的。利用捕捞强度引力中心评价船队的季节空间变化，利用底拖网足迹量化受影响的海底面积。每月汇总着陆情况以评估着陆组成的多变量变化。之前主要集中在一个锋面系统，在2014年至2020年期间向北移动，同时减少了鳕鱼的捕捞量，但增加了虾的捕捞量。拖网总面积变化不大，但足迹几乎翻了一番。我们的研究结果可以用于渔业管理，提高决策者对捕捞策略时空变化的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Fisheries Management and Ecology 农林科学-渔业

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

12-24 weeks

期刊介绍： Fisheries Management and Ecology is a journal with an international perspective. It presents papers that cover all aspects of the management, ecology and conservation of inland, estuarine and coastal fisheries. The Journal aims to: foster an understanding of the maintenance, development and management of the conditions under which fish populations and communities thrive, and how they and their habitat can be conserved and enhanced; promote a thorough understanding of the dual nature of fisheries as valuable resources exploited for food, recreational and commercial purposes and as pivotal indicators of aquatic habitat quality and conservation status; help fisheries managers focus upon policy, management, operational, conservation and ecological issues; assist fisheries ecologists become more aware of the needs of managers for information, techniques, tools and concepts; integrate ecological studies with all aspects of management; ensure that the conservation of fisheries and their environments is a recurring theme in fisheries and aquatic management.