Horizon 1 1 5 OS CH : Chapitres d'ouvrages scientifiques Our shared ocean : science in the Global South for a sustainable world Grands Enjeux 124-125 MADAGASCAR 2025 Marseille IRD fdi:010094456 ENG https://www.documentation.ird.fr/hor/fdi:010094456 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2025-07/010094456.pdf Horizon (IRD) Mangrove crab fishing has long been a secondary economic sector in Madagascar. But the situation has changed dramatically since 2014 with the expansion of live crab exports to the Asian market, which have boosted fishing effort and production. 040PECHE