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首页> 外文期刊>Fisheries Research >Evaluation of by-catch reduction devices for use in the artisanal pinkshrimp (Farfantepenaeus paulensis) fishery in Patos Lagoon, Brazil
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Evaluation of by-catch reduction devices for use in the artisanal pinkshrimp (Farfantepenaeus paulensis) fishery in Patos Lagoon, Brazil

机译：在巴西帕托斯泻湖的手工捕捞虾类（Farfantepenaeus paulensis）渔业中使用的兼捕减少设备的评估

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摘要

The main shrimp fishery in Patos Lagoon, southern Brazil, is conducted with stow nets and light baiting. The target species is the juvenile pink shrimp, Farfantepenaeus paulensis; the largest components of the by-catch are the blue crab, Callinectes sapidus, and the white croaker, Micropogonias furnieri. In this study, we calculated the biometric relationships for these species, and we tested a by-catch reduction device that consisted of a grid placed over the opening of the net. The performance of grids with spaces of 25, 30 and 35 mm between the bars was assessed. The grid with the smallest spacing was the most efficient in reducing by-catch. This device excludes mature individuals from the net, with negligible loss in shrimp production.
机译：巴西南部帕托斯泻湖的主要虾类捕捞活动是用拖网和浅饵。目标物种是粉红色的少年虾，Farfantepenaeus paulensis;副渔获物的最大组成部分是蓝蟹Callinectes sapidus和白花鱼Micropogonias furnieri。在这项研究中，我们计算了这些物种的生物特征关系，并测试了一种副渔获物减少装置，该装置由放置在网孔上方的网格组成。评估了在条之间间隔为25、30和35 mm的栅格的性能。间距最小的栅格在减少副渔获物方面最有效。该设备将成熟个体从网中排除，虾产量的损失可忽略不计。

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