捕鱼对巴西东北部塞拉鲭（Scomberomorus brasiliensis）的影响

IF 2 3区农林科学 Q2 FISHERIES

Fisheries Management and Ecology Pub Date : 2024-01-28 DOI:10.1111/fme.12688

Amanda Graziele Araújo Resende, Fabrice Duponchelle, Francisco Marcante Santana, Rosângela Paula Lessa

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引用次数: 0

摘要

鲅鱼（Scomberomorus brasiliensis）在整个分布区都具有很高的商业价值。在巴西东北部，这一重要的渔业资源自 20 世纪 60 年代以来一直受到强大的捕捞压力，其长度组成在 1998-2001 年和 2020-2022 年间发生了变化。长度频率分布、开发指标和渔具选择性表明，过度捕捞对种群大小结构产生了影响，产卵鱼被过度捕捞，渔获量中大于 60 厘米的成鱼数量减少。此外，渔具的选择性也发生了变化，40 毫米网目首次捕获的鱼体尺寸减小。我们的研究结果表明，该鱼种在研究区域内的开发是不可持续的，并表明存在生长和繁殖的过度捕捞。

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Effects of fishing on the Serra Spanish Mackerel (Scomberomorus brasiliensis) in Northeast Brazil

The Spanish mackerel (Scomberomorus brasiliensis) is of high commercial value throughout its distribution. In Northeast Brazil, this important fishery resource has been under strong fishing pressure since the 1960s, with length composition changing between 1998–2001 and 2020–2022. Length frequency distributions, exploitation indicators, and gear selectivity indicated the effects of overfishing on stock size structure, with excessive withdrawal of spawners and reduced numbers of adults larger than 60 cm in catches. In addition, gear selectivity changed, with reduced size at first capture in the 40-mm mesh. Our results indicated that the species is unsustainably exploited in the study area and suggested both growth and recruitment overfishing.

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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.