利用新的监测方法分析中马德拉分流域手工捕捞的洄游鲶鱼产量,亚马逊西南部

IF 0.7 4区 农林科学 Q4 FISHERIES
Igor Hister Lourenço, Larissa Sbeghen Pelegrini, Victoria Judith Isaac Nahum, Marcelo Rodrigues dos Anjos
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引用次数: 0

摘要

有关亚马逊河鲶鱼生产的研究通常是在大型渔业中心进行的。然而,有关小规模渔业的数据却存在缺口,这可能会给渔业活动带来风险。本研究评估了 2018 年 5 月至 2019 年 4 月在巴西亚马孙河流域胡迈塔上岸的鲦鱼科洄游鲶鱼的产量和收入。通过向停靠在码头的每艘渔船的渔民发放调查问卷,与 Z-31 渔民聚居地一起进行了日常监测。总产量为 6013.93 千克,计有 1689 条鱼,13 个鱼种。对 122 名渔民在 24 个捕鱼地点(河流、湖泊和 "igarapés")的 186 次捕鱼进行了评估。平均售价为 5.57 雷亚尔/公斤,7 月至 9 月的产量最高,主要是刺网捕鱼,其中 "Surubim" Pseudoplatystoma punticfer 的产量和收入最高。大多数地方的产量都很低,属于手工捕捞。缺乏储存和运输鱼类的适当条件、当地的水文变化以及马德拉河上水电站的存在,都是限制亚马孙河南部渔业发展的主要因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of Migratory Catfish Production from Artisanal Fishing in the Middle Madeira Sub-Basin Using New Monitoring Methods, Southwestern Amazon

Studies on the production of Pimelodidae catfish in the Amazon are generally carried out in large fishing centers. However, the data referring to small-scale fisheries have gaps that can represent a risk to the activity. This study evaluated the volume produced and the revenue obtained from migratory catfish of the Pimelodidae family of commercial interest landed in Humaitá, Amazonas, Brazil, from May 2018 to April 2019. Daily monitoring was carried out with the Z-31 Fishermen’s Colony through questionnaires to fishermen for each vessel docked. The total production was 6013.93 kg, with 1,689 fish counted and 13 species. A total of 186 landings by 122 fishermen in 24 fishing sites characterized as rivers, lakes, and “igarapés” were evaluated. The average selling price was R$5.57/kg, and the highest volumes were obtained from July to September, mainly with gillnets, where the “Surubim” Pseudoplatystoma punticfer had the highest volume and revenue. Low productivity was verified in most localities, characterizing the fishing as artisanal. The lack of adequate conditions for storing and transporting fish, the local hydrological variations, and the presence of hydroelectric plants on the Madeira River are major factors limiting the fishing expansion in southern Amazonas.

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来源期刊
Journal of Applied Ichthyology
Journal of Applied Ichthyology 生物-海洋与淡水生物学
CiteScore
2.30
自引率
11.10%
发文量
73
审稿时长
3-8 weeks
期刊介绍: The Journal of Applied Ichthyology publishes articles of international repute on ichthyology, aquaculture, and marine fisheries; ichthyopathology and ichthyoimmunology; environmental toxicology using fishes as test organisms; basic research on fishery management; and aspects of integrated coastal zone management in relation to fisheries and aquaculture. Emphasis is placed on the application of scientific research findings, while special consideration is given to ichthyological problems occurring in developing countries. Article formats include original articles, review articles, short communications and technical reports.
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