Evaluating the conservation benefit of circle hooks for the Atlantic Striped Bass recreational fishery

IF 1.8 3区农林科学 Q2 FISHERIES

Marine and Coastal Fisheries Pub Date : 2024-09-21 DOI:10.1002/mcf2.10308

Micah J. Dean, William S. Hoffman, Benjamin I. Gahagan, Gary A. Nelson, Michael P. Armstrong

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引用次数: 0

Abstract

Objective

The Striped Bass Morone saxatilis is one of the most sought-after recreational fish species along the US Atlantic coast. Regulations and a strong conservation ethic among anglers make Striped Bass among the most frequently released coastal marine fishes. A recent rule requires anglers to use circle hooks when targeting Striped Bass with natural baits, yet the conservation benefit of this action remains unclear.

Methods

We used acoustic telemetry to monitor the fate of Striped Bass that were recreationally caught with baited hooks (n = 349) and to estimate the influence of various biological (fish size), fishery (fight time, handling time, hook location, bait type, and hook type), and environmental (water temperature and air temperature) variables on postrelease survival.

Result

A semi-quantitative score of fish release condition was the single best predictor of mortality. A broader dataset that included untagged fish (n = 716) was used to identify the best predictors of fish release condition, which included hook location and handling time.

Conclusion

Contrary to expectations, the circle hooks used in this study did not result in lower release mortality than conventional J-hooks.

Abstract Image

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评估圈钩对大西洋带鱼休闲渔业的保护效益

目标花脸鲈（Morone saxatilis）是美国大西洋沿岸最受欢迎的休闲鱼类之一。相关法规和垂钓者强烈的保护意识使花脸鲈成为最常被释放的沿海海洋鱼类之一。最近的一项规定要求垂钓者在用天然饵料垂钓带鱼时使用圆钩，但这一行动对保护带鱼的益处仍不清楚。方法我们使用声学遥测技术监测用带饵鱼钩娱乐性捕获的带鱼（n = 349）的命运，并估计各种生物（鱼体大小）、渔业（搏斗时间、处理时间、鱼钩位置、鱼饵类型和鱼钩类型）和环境（水温和气温）变量对释放后存活率的影响。结果鱼类释放条件的半定量评分是预测死亡率的唯一最佳指标。使用包括未标记鱼类（n = 716）的更广泛数据集来确定鱼类释放条件的最佳预测指标，其中包括鱼钩位置和处理时间。结论与预期相反，本研究中使用的圆钩并没有导致比传统 J 形钩更低的释放死亡率。

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来源期刊

Marine and Coastal Fisheries FISHERIES-MARINE & FRESHWATER BIOLOGY

CiteScore

3.40

自引率

5.90%

发文量

审稿时长

>12 weeks

期刊介绍： Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science publishes original and innovative research that synthesizes information on biological organization across spatial and temporal scales to promote ecologically sound fisheries science and management. This open-access, online journal published by the American Fisheries Society provides an international venue for studies of marine, coastal, and estuarine fisheries, with emphasis on species'' performance and responses to perturbations in their environment, and promotes the development of ecosystem-based fisheries science and management.