The long-term impacts of Marine Protected Areas on fish catch and socioeconomic development in Tanzania

IF 7.7 1区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Conservation Letters Pub Date : 2024-10-04 DOI:10.1111/conl.13048

Sébastien Desbureaux, Julia Girard, Alicia Dalongeville, Rodolphe Devillers, David Mouillot, Narriman Jiddawi, Loic Sanchez, Laure Velez, Laetitia Mathon, Antoine Leblois

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引用次数: 0

Abstract

Marine Protected Areas (MPAs) are a cornerstone of marine conservation efforts, with the potential to protect biodiversity and provide socioeconomic benefits. We quantified the effect of MPAs on fishing outcomes, economic activities, and material living standards in 24 coastal villages of Tanzania over two decades. We accessed original data from a study conducted in 2003 that found no effect of MPAs 3–8 years after their creation. Eighteen years later, we replicated the survey and used a Before-After Control-Intervention design to quantify the effect of MPAs. We found that villages near MPAs experienced a 50% higher improvement in living standards compared to those further from MPAs. This benefit is not related to higher fishing outcomes but to a diversification of economic sectors. Our findings highlight a decoupling between fish catches and economic benefits, revealing that socio-economic outcomes can be observed for MPAs whose ecosystems’ productivity has declined.

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海洋保护区对坦桑尼亚渔获量和社会经济发展的长期影响

海洋保护区（MPA）是海洋保护工作的基石，具有保护生物多样性和提供社会经济效益的潜力。我们量化了二十年来 MPA 对坦桑尼亚 24 个沿海村庄的渔业成果、经济活动和物质生活水平的影响。我们从 2003 年进行的一项研究中获取了原始数据，发现海洋保护区在建立 3-8 年后没有任何效果。18 年后，我们重新进行了调查，并采用 "前后对照-干预 "设计来量化海洋保护区的效果。我们发现，与距离海洋保护区较远的村庄相比，海洋保护区附近村庄的生活水平提高了 50%。这种益处与更高的渔业成果无关，而是与经济部门的多样化有关。我们的研究结果突显了渔获量与经济效益之间的脱钩，揭示了生态系统生产力下降的海洋保护区也能产生社会经济效益。

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来源期刊

Conservation Letters BIODIVERSITY CONSERVATION-

CiteScore

13.50

自引率

2.40%

发文量

审稿时长

>12 weeks

期刊介绍： Conservation Letters is a reputable scientific journal that is devoted to the publication of both empirical and theoretical research that has important implications for the conservation of biological diversity. The journal warmly invites submissions from various disciplines within the biological and social sciences, with a particular interest in interdisciplinary work. The primary aim is to advance both pragmatic conservation objectives and scientific knowledge. Manuscripts are subject to a rapid communication schedule, therefore they should address current and relevant topics. Research articles should effectively communicate the significance of their findings in relation to conservation policy and practice.