Can pots be an alternative fishing gear to gillnets? A Mediterranean case study

IF 5.9 1区 农林科学 Q1 FISHERIES
M. Virgili, A. Petetta, B. Herrmann, K. Cerbule, S. Guicciardi, G. La Manna, L. Malvarosa, D. Li Veli, G. Barone, A. Lucchetti
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引用次数: 0

Abstract

Small-scale coastal fisheries in the Mediterranean often employ gillnets, a widely used gear worldwide. The disadvantages of gillnets in this fishery include high bycatch levels of unwanted species and consequent discards. Moreover, spatial conflict with other gears and dolphin depredation often results in considerable economic loss. Alternative fishing methods are being tested. This study investigated whether, in small-scale fisheries in the Adriatic Sea, pots can ensure sustainable harvest of mantis shrimp (Squilla mantis), a major target demersal species in terms of landings, and possibly replace traditional gillnets. We adopted a multidisciplinary approach to investigate the catch efficiency, biological impact, and socio-economic effects of the two fishing methods. We found different species compositions in gillnet and pot catches. Gillnets yielded a greater number of discarded species of no commercial value, whereas pots caught a greater amount of mantis shrimp. Finally, a profit analysis indicated that pot fishery has the potential to increase profits for the commercial fishing industry. This study suggests that pots provide a more sustainable fishing method, both in terms of revenue and environmental impact.

Abstract Image

网箱能否成为刺网的替代渔具?地中海案例研究
地中海地区的小型沿海渔业经常使用刺网,这是一种在全球广泛使用的渔具。刺网捕鱼的缺点包括误捕不需要的鱼种和由此造成的丢弃物较多。此外,与其他渔具的空间冲突和海豚的捕食往往造成巨大的经济损失。替代捕捞方法正在接受测试。本研究调查了在亚得里亚海的小型渔业中,网箱能否确保可持续捕捞螳螂虾(Squilla mantis)--一种主要的底栖目标鱼种--并在可能的情况下取代传统刺网。我们采用了多学科方法来研究这两种捕鱼方法的捕获效率、生物影响和社会经济效应。我们发现刺网和锅捕获物的物种组成不同。刺网捕获了更多无商业价值的废弃物种,而网箱捕获了更多的螳螂虾。最后,利润分析表明,盆式渔业有可能增加商业捕鱼业的利润。这项研究表明,无论从收入还是环境影响来看,盆式捕鱼都是一种更可持续的捕鱼方法。
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来源期刊
Reviews in Fish Biology and Fisheries
Reviews in Fish Biology and Fisheries 农林科学-海洋与淡水生物学
CiteScore
10.00
自引率
8.10%
发文量
42
审稿时长
12-24 weeks
期刊介绍: The subject matter is focused on include evolutionary biology, zoogeography, taxonomy, including biochemical taxonomy and stock identification, genetics and genetic manipulation, physiology, functional morphology, behaviour, ecology, fisheries assessment, development, exploitation and conservation. however, reviews will be published from any field of fish biology where the emphasis is placed on adaptation, function or exploitation in the whole organism.
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