Ghost fishing by self-baited lost, abandoned or discarded pots in snow crab (Chionoecetes opilio) fishery

IF 2.2 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation Pub Date : 2024-11-14 DOI:10.1016/j.jnc.2024.126764

Kristine Cerbule , Bent Herrmann , Roger B. Larsen , Mengjie Yu

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引用次数: 0

Abstract

Unintended continuous capture or so-called “ghost fishing”, by abandoned, lost, or otherwise discarded fishing gear produces negative environmental impact on marine life and nature conservation. The risk of ghost fishing in pots could be high due to potential self-baiting resulting from mortality of ghost fished catch. Self-baiting may increase ghost fishing by further attracting marine organisms, including cannibalistic conspecifics. However, self-baiting effect in pot fisheries is seldom investigated. Pot fisheries targeting snow crab (Chionoecetes opilio) in the Arctic have high risk of gear loss due to harsh weather conditions. This study quantifies ghost fishing efficiency by simulated self-baited snow crab pots containing dead snow crab relative to catch efficiency of actively fished baited pots. On average, self-baited pots captured 0.4% of target-sized snow crab compared to actively fished pots. These results showed that the impact on marine environment caused by ghost fishing in pots is not always increasing due to self-baiting and can vary throughout the time pots are exposed to ghost fishing.

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在雪蟹（Chionoecetes opilio）渔业中利用自带诱饵的遗失、遗弃或丢弃渔盆进行幽灵捕捞

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来源期刊

Journal for Nature Conservation 环境科学-生态学

CiteScore

3.70

自引率

5.00%

发文量

151

审稿时长

7.9 weeks

期刊介绍： The Journal for Nature Conservation addresses concepts, methods and techniques for nature conservation. This international and interdisciplinary journal encourages collaboration between scientists and practitioners, including the integration of biodiversity issues with social and economic concepts. Therefore, conceptual, technical and methodological papers, as well as reviews, research papers, and short communications are welcomed from a wide range of disciplines, including theoretical ecology, landscape ecology, restoration ecology, ecological modelling, and others, provided that there is a clear connection and immediate relevance to nature conservation. Manuscripts without any immediate conservation context, such as inventories, distribution modelling, genetic studies, animal behaviour, plant physiology, will not be considered for this journal; though such data may be useful for conservationists and managers in the future, this is outside of the current scope of the journal.