Duvail Stéphanie auteur aut IRD Mwakalinga A. B. auteur aut IRD Eijkelenburg A. auteur aut IRD Hamerlynck O. auteur aut IRD Kindinda K. auteur aut IRD Majule A. auteur aut IRD text journalArticle eng text/pdf born digital access A large dam is planned at Stiegler's Gorge in Tanzania. The change in the Rufiji River flood pattern will affect downstream ecosystems. This paper concentrates on the highly productive floodplain lakes that play a vital role in local livelihoods. A participatory monitoring system with village-based observers collected water level, rainfall, fisheries and food data from 2001 to 2011. Water balances of the lakes show dependence on the Rufiji River flood, with varying vulnerability. With the dam design flood of 2500 m(3) s(-1), lakes with a high threshold and small catchment will dry out quickly. Lakes with a lower threshold and substantial catchment are more robust but may still dry out during prolonged local drought. Analysis of rainfall (1923-2012) indicates a recent decrease. The data were analysed through feedback workshops with local observers, government technical staff and researchers. Through this collaborative approach, local capacity in preparing for the post-dam future was enhanced. specialized Stiegler's Gorge Dam lakes participatory science environmental flows climate change Rufiji River Tanzania barrage de Stiegler’s gorge lacs science participative débit environnementaux changement climatique rivière Rufiji Tanzanie TANZANIE 062 021 59 3-4 713-730 2014 0262-6667 https://www.documentation.ird.fr/hor/fdi:010062257 10.1080/02626667.2013.827792 0262-6667 [F B010062257] https://www.documentation.ird.fr/hor/fdi:010062257 https://www.documentation.ird.fr/intranet/publi/2014/07/010062257.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-07-24 2025-11-04 fdi:010062257 fre