气候变化和变异性对撒哈拉以南非洲渔业的影响:综述

IF 6.4 1区 农林科学 Q1 FISHERIES Reviews in Fisheries Science & Aquaculture Pub Date : 2021-01-15 DOI:10.1080/23308249.2020.1867057
R. T. Muringai, P. Mafongoya, R. Lottering
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引用次数: 11

摘要

撒哈拉以南非洲地区的渔业容易受到气候变化的影响,包括平均温度的变化、降雨变率的增加和极端天气事件的发生。本文回顾了气候变化的规模及其对内陆和海洋渔业影响的性质的证据。此外,报告还重点讨论了气候变化对依赖渔业的社区的影响,最后强调了渔民采取的气候变化适应战略。本综述采用系统的方法检索和选择相关的已发表文献。综述的文献表明,一些渔业社区面临着渔获量下降的挑战,这与气候变化和多变性有关。平均温度、降雨量和降雨模式、海平面变化、水盐度和湖泊水位的变化都会影响鱼类的产量。撒哈拉以南非洲的渔民采取不同的战略来维持生计和粮食安全,而这些生计和粮食安全正受到气候变化的威胁。渔民为应对气候变化影响而采用的适应策略包括:更换渔具、迁徙、瞄准新物种、增加渔场和捕鱼时间。为了促进社会生态适应和渔业的可持续性,了解气候变化在地方一级的影响至关重要,这将为政策和渔业管理实践提供信息。
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Climate Change and Variability Impacts on Sub-Saharan African Fisheries: A Review
Abstract Fisheries in Sub-Saharan Africa are vulnerable to the effects of climate change, which include changes in mean temperature, increasing rainfall variability and the occurrence of extreme weather events. This article reviews evidence on the magnitude of climate change and the nature of its impacts on both inland and marine fisheries. In addition, the review also focuses on the impacts of climate change on fishery-dependent communities and finally highlights climate change adaptation strategies adopted by fishers. A systematic approach was employed to search and select relevant published literature used in this review paper. The reviewed literature indicated the challenge of declining fish catches in several fishing communities, which was associated with climate change and variability. Changes in mean temperature, rainfall quantities and patterns, sea-level changes, water salinity, and lake levels affect fish productivity. Fishers in sub-Saharan Africa adopt different strategies to sustain their livelihoods and food security, which are being threatened by climate change. Adaptation strategies employed by fishers to cope with the impacts of climate change include, changing fishing gear, migration, targeting new species, and increasing fishing grounds and time spent fishing. To promote socio-ecological adaptation and fisheries sustainability, it is crucial to understand the impacts of climate change at a local level, which would inform policy and fisheries management practices.
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来源期刊
CiteScore
25.20
自引率
0.90%
发文量
19
期刊介绍: Reviews in Fisheries Science & Aquaculture provides an important forum for the publication of up-to-date reviews covering a broad range of subject areas including management, aquaculture, taxonomy, behavior, stock identification, genetics, nutrition, and physiology. Issues concerning finfish and aquatic invertebrates prized for their economic or recreational importance, their value as indicators of environmental health, or their natural beauty are addressed. An important resource that keeps you apprised of the latest changes in the field, each issue of Reviews in Fisheries Science & Aquaculture presents useful information to fisheries and aquaculture scientists in academia, state and federal natural resources agencies, and the private sector.
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