超越边界:大西洋西南海域中大西洋鲭鱼向极地范围的扩张

IF 1.9 2区 农林科学 Q2 FISHERIES
Manuela Parietti, Micaela Giorgini, Paula Orlando, Carla Derisio, Brenda Temperoni, Luciano Nahuel Padovani, Marina Marrari, Claudio César Buratti
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引用次数: 0

摘要

物种分布的变化在生态、经济和社会方面具有深远的影响。远洋鱼类是全球渔业的重要组成部分,具有显著的泛盐和泛温特征。然而,由于海洋表面温度和食物资源动态,自2010年代以来,北半球某些Scomber物种出现了向极地扩展的趋势。大菱鲆是阿根廷主要的远洋渔业资源,是一种未充分开发的鱼种,最近的捕捞总量约为14,800吨。在北巴塔哥尼亚大陆架水域,也就是大角藻位于其南部分布的地方,已经有海洋变暖的记录。在此背景下,本研究评估了1991年至2022年西南大西洋(SAO) colias分布和丰度的潜在变化。利用两个不同的数据来源,分析显示极地范围扩大,延伸到48°5'S,超过历史限制278公里。这种扩张与海面温度上升正相关,在夏季观察到最显著的位移,此时该物种在研究区域的摄食活动较高。该研究进一步探讨了2011年至2022年间colias的存在与其主要猎物物种丰度之间的关系。这是极有可能的,但没有发现显著的结果。这一研究首次记录了南太平洋地区大角鲨向南的活动范围扩张,为生物学研究、渔业管理和罐头制造业提供了重要的定量见解。后者可以受益于全年获得鱼类,可能创造就业机会并促进当地社区的经济增长。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Beyond the Boundaries: Poleward Range Expansion of the Atlantic Chub Mackerel Scomber colias in SW Atlantic Ocean

Shifts in species distribution have far-reaching implications across ecological, economic, and social dimensions. Pelagic fish, integral to global fisheries, have displayed notable euryhaline and eurythermal characteristics. However, a poleward range expansion trend has emerged in the northern hemisphere for certain Scomber species since the 2010s, attributed to sea surface temperature and food resource dynamics. Scomber colias, a principal pelagic fishery resource in Argentina, stands as an underexploited species with recent landings totaling approximately 14,800 tons. In the North Patagonian shelf waters, where S. colias resides at its southern distribution, there has been documented ocean warming. In this context, this study evaluates potential changes in the distribution and abundance of S. colias from 1991 to 2022 in the Southwestern Atlantic Ocean (SAO). Drawing on two distinct data sources, the analysis reveals a poleward range expansion, extending to 48°5′S, exceeding historical limits by 278 km. This expansion is positively correlated with rising sea surface temperatures, with the most significant displacement observed during summer, when this species has a high feeding activity in the study area. The investigation further explores the relationship between S. colias presence and the abundance of its primary prey species between 2011 and 2022. This is highly possible, yet no significant results were uncovered. This study marks the first documented southward range expansion of S. colias in the SAO, providing essential quantitative insights for biological studies, fisheries management, and the canning manufacturing industry. The latter could benefit from year-round access to fish, potentially generating employment opportunities and fostering economic growth within the local community.

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来源期刊
Fisheries Oceanography
Fisheries Oceanography 农林科学-海洋学
CiteScore
5.00
自引率
7.70%
发文量
50
审稿时长
>18 weeks
期刊介绍: The international journal of the Japanese Society for Fisheries Oceanography, Fisheries Oceanography is designed to present a forum for the exchange of information amongst fisheries scientists worldwide. Fisheries Oceanography: presents original research articles relating the production and dynamics of fish populations to the marine environment examines entire food chains - not just single species identifies mechanisms controlling abundance explores factors affecting the recruitment and abundance of fish species and all higher marine tropic levels
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