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Small scale fisheries in a warming ocean

Abstract : Global warming, caused by the increase of greenhouse gas (GHG) emissions through human activities, has a strong impact on our oceans including changes to oceano-graphic characteristics, as well as to abundance and distribution of marine life. Moreover, it also has severe socio-economic impacts on people living at and from the sea. In order to predict and evaluate the impacts of global warming (and sub-sequently to find suitable adaptation strategies), scientific computer models are utilized. These climate change models predict the effects of global heating on marine life and associated fisheries on a global scale, but often with a high level of uncertainty and low geographic resolution. This makes it difficult to determine effective adaptation measures for fisheries on a local level. The development of adaptation and mitigation strategies is especially urgent in small-scale fisheries that contribute about half of global fish catches and make an important contribution to nutrition, food security, sustainable livelihoods and poverty alleviation, especially in developing countries. This study used a comprehensive conceptual framework that integrates different formats of knowledge, and an interdisciplinary research approach illustrated by the integration of both, the natural and the social sciences traditions. Our study aimed to explore local adaptation measures of fishers and fishing communities by complementing fine-grained scientific climate model predictions with insights based on the perceptions, knowledge, and practices local fishers have about climate change. This combined approach represents an innovative lens to understand climate change and human adaptation since it merges both predictive (computer models) and social sciences (traditional and local knowledge of fishers). We believe it will enhance our ability to promote and strengthen the natural capacity of adaptation of fishers and fishing communities with the aim to promote and support adaptation strategies of small-scale fishers. First, the modelling aimed to predict the climate change impacts on commercial fish species and their distribution in three case countries (Ecuador; mainland and Galapagos Islands, South Africa and the Philippines). These models were based on multitemporal data sets for the areas where the study took place, designed by using outputs of the IPCC scenarios and risk analysis methods. This allowed us to identify some of the anticipated impacts of climate change on the currently exploited fish stocks in those countries. The second part of the study aimed to i) explore local perceptions by fishers, of the effects of climate change on small-scale fisheries, ii) describe how well prepared the small-scale fishing sector is in front of climate change, and iii) illustrate the adaptation measures, capabilities, challenges, and actions, carried on by fishers, to cope with climate change. We organized four workshops (in the same three case countries) involving varied and relevant sectors and actors, within the small-scale fisheries sector. The workshops were attended by fishers, researchers and managers and exhibited diverse formats, based on the location’s and fisheries sector characteristics.
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https://hal-agrocampus-ouest.archives-ouvertes.fr/hal-03136007
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Submitted on : Tuesday, February 9, 2021 - 1:51:52 PM
Last modification on : Wednesday, February 24, 2021 - 3:31:18 AM
Long-term archiving on: : Monday, May 10, 2021 - 6:44:52 PM

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  • HAL Id : hal-03136007, version 1

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Léa Monnier, Didier Gascuel, Juan José Alava, William Cheung, Maria José Barragán, et al.. Small scale fisheries in a warming ocean. [Research Report] Agrocampus ouest CFR Rennes, agronomie, spécialisation halieutique, gestion des pêches, des écosystèmes côtiers et continentaux; International WWF Centre for Marine Conservation, Hamburg. 2020. ⟨hal-03136007⟩

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