鲑鱼陷入水深火热之中加拿大亚北极地区拉布拉多前所未有的暖水事件

IF 2 3区农林科学 Q2 FISHERIES Fisheries Management and Ecology Pub Date : 2024-05-20 DOI:10.1111/fme.12710

Emilie A. Geissinger, Travis E. Van Leeuwen, Nicholas Kelly, Curtis Pennell, Michelle G. Fitzsimmons, Steven Duffy, Rebecca Poole, Joey Angnatok, J. Brian Dempson, David Coté

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引用次数: 0

摘要

2023 年 7 月，加拿大亚北极地区拉布拉多的河流温度空前偏高，达到了自开始监测（1994-2023 年）以来的最高值，温度范围从 19.4°C（亨特河）到 22.5°C（鹰河）不等。在 7 条河流中，有 5 条河流的 14 天内大西洋鲑鱼和鳟鱼的成年水温（≥25°C）超过了初生致死水温，在 7 条河流中，有 6 条河流的 17 天内北极鲑鱼的成年水温（≥24°C）超过了初生致死水温。因此，拉布拉多在 2023 年的垂钓限制和关闭次数最多。最近的气候变暖为历史上未受热浪影响地区的渔业管理者敲响了警钟，他们需要制定行动计划，减轻气候变暖对鱼类的影响。

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Salmonids in hot water: An unprecedented warm-water event in Labrador, a subarctic region of Canada

Unprecedented warm river temperatures in July 2023 in Labrador, a subarctic region of Canada, were the highest since monitoring began (1994–2023) and ranged from 19.4°C (Hunt River) to 22.5°C (Eagle River). Incipient lethal water temperatures were exceeded for adult Atlantic salmon and brook trout (≥25°C) on 14 days in five of seven rivers and Arctic charr (≥24°C) on 17 days in six of seven rivers. Consequently, Labrador had the greatest number of angling restrictions and closures in 2023. Recent warming serves as a warning to fishery managers of regions historically unaffected by heat waves of the need to prepare action plans that mitigate the effects of a warming climate on fishes.

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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.