通过改善管理提高非洲渔业对粮食安全的贡献

IF 5.6 1区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Yimin Ye, Papa Gora Ndiaye, Mohsen Al-Husaini
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引用次数: 0

摘要

非洲是最贫穷的大陆,人口增长最快,粮食短缺最严重,而且渔业过度。既要满足不断增长的粮食需求,又要保持可持续生产,这是一项挑战。我们对过去 70 年的整个渔业供应链进行了评估,以寻找从鱼类资源状况、渔业生产到贸易和人类消费的可持续增长途径。我们的数据显示,2017年非洲的人均水产品消费量是各大洲中最低的,而国际进口占了这一低水产品消费量的35%。同时,外国船只在非洲水域合法或非法捕鱼,每年在非洲以外上岸310万吨鱼。目前的捕鱼方式导致 40% 的鱼类种群被过度开发,造成每年 200 万吨鱼类产量的损失。改进管理可以减少外国渔船捕捞的非贸易鱼类外流,将过度捕捞的鱼类恢复到最大可持续水平,使非洲的鱼类消费量增加 42%,海洋渔业的商业价值增加 53%。除了食品供应和经济效益,还有各种社会和环境效益,包括就业机会、对当地生计的支持以及环境健康。这些发现有助于为政策提供依据,并为非洲面临的过度捕捞、鱼类消费量低、饥饿和贫困等挑战制定长期可持续的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Increasing the contribution of Africa’s fisheries to food security through improved management

Increasing the contribution of Africa’s fisheries to food security through improved management

Africa is the poorest continent, with the fastest population growth, the most acute food shortages, and overfishing. Meeting rising food demand while preserving sustainable production is challenging. We evaluated the full fishery supply chain over the previous 70 years in search of sustainable growth paths, from fish resource status and fishery production to trade and human consumption. Our data show that Africa had the lowest per capita fish consumption of any continent in 2017, with international imports accounting for 35% of this low fish consumption. Meanwhile, foreign vessels fish legally or illegally in African waters, landing 3.1 million tonnes of fish outside of Africa each year. Current fishing practises have resulted in 40% of fish populations being overexploited, causing a loss of 2 million tonnes of fish production per year. Improved management can reduce non-trade fish outflows from foreign vessels fishing and restore overfished stocks to maximum sustainable levels, increasing Africa's fish consumption by 42% and the commercial value of marine fisheries by 53%. Aside from food supply and economic benefits, there are also various social and environmental benefits including job opportunities, support for local livelihoods, and environmental health. These findings can help inform policy and the development of long-term sustainable solutions to challenges in Africa such as overfishing, low fish consumption, hunger, and poverty.

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来源期刊
Food Security
Food Security FOOD SCIENCE & TECHNOLOGY-
CiteScore
14.00
自引率
6.00%
发文量
87
审稿时长
>12 weeks
期刊介绍: Food Security is a wide audience, interdisciplinary, international journal dedicated to the procurement, access (economic and physical), and quality of food, in all its dimensions. Scales range from the individual to communities, and to the world food system. We strive to publish high-quality scientific articles, where quality includes, but is not limited to, the quality and clarity of text, and the validity of methods and approaches. Food Security is the initiative of a distinguished international group of scientists from different disciplines who hold a deep concern for the challenge of global food security, together with a vision of the power of shared knowledge as a means of meeting that challenge. To address the challenge of global food security, the journal seeks to address the constraints - physical, biological and socio-economic - which not only limit food production but also the ability of people to access a healthy diet. From this perspective, the journal covers the following areas: Global food needs: the mismatch between population and the ability to provide adequate nutrition Global food potential and global food production Natural constraints to satisfying global food needs: § Climate, climate variability, and climate change § Desertification and flooding § Natural disasters § Soils, soil quality and threats to soils, edaphic and other abiotic constraints to production § Biotic constraints to production, pathogens, pests, and weeds in their effects on sustainable production The sociological contexts of food production, access, quality, and consumption. Nutrition, food quality and food safety. Socio-political factors that impinge on the ability to satisfy global food needs: § Land, agricultural and food policy § International relations and trade § Access to food § Financial policy § Wars and ethnic unrest Research policies and priorities to ensure food security in its various dimensions.
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