溯河而上的北极红点鲑的冬季和春季运动:通过因纽特人领导的遥测研究将行为与环境条件联系起来

IF 1.4 4区 环境科学与生态学 Q3 ECOLOGY
Véronique Dubos, Carole-Anne Gillis, Johnny Nassak, Noah Eetook, Jean-Sébastien Moore
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引用次数: 0

摘要

在因纽特人的夏末,溯河而上的北极红点鲑(Salvelinus alpinus)洄游至塔西尔朱鲁西克湖(魁北克省努纳维克的康吉尔苏克)。它们在上游洄游期间维持着自给性捕捞。然而,在冬季,当地因纽特人渔民无法在该湖捕获北极红点鲑,但到了春末,捕获量又会恢复。Kangirsuk 猎人和渔民协会(Uumajulirijikkut Kangirsumi)发起了一项遥测研究,以评估:(1)北极红点鲑是否在湖中越冬;(2)鱼类在冬季和春季的行为是否与环境特征(温度、氧气或结冰)有关。八条北极红点鲑在上游洄游时被声学发射器标记,被动接收器在整个湖区连续部署了两年。其中 5 条被标记的北极红点鲑在湖中越冬,大约有 8 个月没有活动。冬季难以捕获它们的原因可能是它们的活动水平较低,再加上该湖中有大片的沿岸带(选定的栖息地)。随着融雪径流的开始,标记北极红点鲑的活动量明显增加,直至湖水完全混合。北极红点鲑在排泄量达到峰值时离开湖泊,这与湖泊出口处的冰层破裂时间相吻合。这项合作研究由社区主导,以当地问题为基础,其结果与渔民的观察结果相吻合,也是对渔民观察结果的补充。尽管由于社区对动物健康的担忧,标记鱼的数量有限,但研究结果表明了这一种群中不同的迁移模式,并揭示了导致白垩鱼在春季恢复活动的环境诱因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Winter and spring movements of anadromous Arctic char: Linking behavior to environmental conditions through an Inuit-led telemetry study

Winter and spring movements of anadromous Arctic char: Linking behavior to environmental conditions through an Inuit-led telemetry study

At the end of the Inuit summer, anadromous Arctic char (Salvelinus alpinus) migrate toward Tasirjuarusik Lake (Kangirsuk, Nunavik, Quebec). They sustain subsistence fishing during the upstream migration. However, during the winter, local Inuit fishers have been unsuccessful in catching Arctic char in this lake, but catches do resume in late spring. The Kangirsuk hunters and fishers’ association, Uumajulirijikkut Kangirsumi, initiated a telemetry study to assess (1) if the Arctic char were overwintering in the lake and (2) if the fish behavior during winter and spring was linked to environmental characteristics (temperature, oxygen, or ice). Eight Arctic char were tagged with acoustic transmitters during their upstream migration, and passive receivers were deployed throughout the lake continuously for 2 years. Five of the tagged fish overwintered in the lake, where they remained inactive for approximately 8 months. The difficulty of catching them in winter is likely due to their low activity level combined with the large areas of littoral zones (selected habitat) in this lake. A significant increase in the activity level of the tagged Arctic char occurred simultaneously with the onset of snowmelt runoff until the complete mixing of the lake. Char left the lake at peak discharge, coinciding with the ice breakup at the lake outlet. The results of this collaborative research, led by the community with locally grounded questions, align with and complement the observations of fishers. Despite the limited number of tagged fish due to community concerns about animal well-being, the results illustrate different migration patterns within this population and shed light on the environmental triggers that lead to the resumption of char activity in spring.

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来源期刊
Environmental Biology of Fishes
Environmental Biology of Fishes 环境科学-海洋与淡水生物学
CiteScore
2.60
自引率
14.30%
发文量
169
审稿时长
3 months
期刊介绍: Environmental Biology of Fishes is an international journal that publishes original studies on the ecology, life history, epigenetics, behavior, physiology, morphology, systematics and evolution of marine and freshwater fishes. Empirical and theoretical papers are published that deal with the relationship between fishes and their external and internal environment, whether natural or unnatural. The journal concentrates on papers that advance the scholarly understanding of life and draw on a variety of disciplines in reaching this understanding. Environmental Biology of Fishes publishes original papers, review papers, brief communications, editorials, book reviews and special issues. Descriptions and submission requirements of these article types can be found in the Instructions for Authors.
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