Effect of temperature on metabolic stress and recovery of two Argyrosomus species from simulated catch‐and‐release angling

IF 2 3区农林科学 Q2 FISHERIES

Fisheries Management and Ecology Pub Date : 2024-03-07 DOI:10.1111/fme.12696

Brett A. Pringle, Murray I. Duncan, Alexander C. Winkler, Samuel Mafwila, Charmaine Jagger, Niall J. McKeown, Paul W. Shaw, Romina Henriques, Warren M. Potts

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引用次数: 0

Abstract

Catch‐and‐release (C&R) angling has grown in popularity due to increasing numbers of conservation‐minded anglers and regulations of recreational fisheries. C&R is often assumed to cause low mortality but can cause physiological and physical impairment. Fish metabolism and temperature interact to play a critical role in the biological functioning of fish. Understanding the relationship between temperature, fish metabolism, and physiological impairment is important for effective fisheries management and conservation, particularly for C&R angling in a changing thermal environment. We used respirometry to quantify post‐release metabolic stress and recovery of two popular Namibian angling species (Argyrosomus inodorus and A. coronus) subjected to simulated C&R angling across a range of temperatures. Metabolic stress and recovery time did not differ significantly between warm (A. coronus) and cold‐water (A. inodorus) species at any test temperature. However, several specimens of both species failed to recover physiologically and physically after 10 hours, thereby indicating C&R‐related impairment and potential for mortality. Given the predator‐rich environment of coastal waters in Namibia, best C&R practices are needed to minimise post‐release mortality.

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温度对新陈代谢压力的影响以及模拟捕捞和释放垂钓活动对两种箭鱼恢复的影响

由于具有保护意识的垂钓者越来越多，以及对休闲渔业的监管，随捕随放（C&R）垂钓越来越受欢迎。人们通常认为 "即捕即放 "会导致较低的死亡率，但却可能造成生理和身体损害。鱼类的新陈代谢与温度相互作用，对鱼类的生物功能起着至关重要的作用。了解温度、鱼类新陈代谢和生理损伤之间的关系对于有效的渔业管理和保护非常重要，尤其是在不断变化的热环境中进行 C&R 垂钓。我们使用呼吸测定法量化了纳米比亚两种常用垂钓鱼类（Argyrosomus inodorus 和 A. coronus）在不同温度下接受模拟 C&R 垂钓后的代谢压力和恢复情况。在任何测试温度下，温水鱼种（A. coronus）和冷水鱼种（A. inodorus）的代谢压力和恢复时间均无明显差异。然而，这两种鱼的一些标本在 10 小时后未能恢复生理和体能，这表明与 C&R 有关的损伤和死亡的可能性。鉴于纳米比亚沿海水域捕食者众多的环境，需要采用最佳的 C&R 方法，以尽量减少释放后的死亡率。

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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.