IMPORTANT - Venue change
Water Week 2026 will take place on the University of Abomey-Calavi (UAC) campus. Official opening: Amphi Idriss Déby Itno, UAC. Remaining activities: National Institute of Water (INE), UAC.
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November 13, 2025Proc. IAHS, 388, 1–8, 2025
Spatio-temporal variation of water physicochemical parameters in Lake Toho (Southern Benin)
Mouhamed Orou Nari Chabi Kpera, Roger Bolaya Lingofo, and Youssouf Abou
Short summary
Lake Toho is a small freshwater lake in southern Benin. From February to June 2024, water quality was assessed and results indicated high nutrient levels that could trigger ecological problems such as eutrophication and disappearance of aquatic species.
Dynamics of freshwater benthic macroinvertebrates in West African lagoons: Lake Nokoué and Porto-Novo Lagoon complex, Southern Benin
Roger Bolaya Lingofo, Mouhamed Orou Nari Chabi Kpera, Serge Hubert Togouet Zébazé, and Youssouf Abou
Short summary
The study analyses freshwater benthic macroinvertebrate dynamics in the Lake Nokoué and Porto-Novo Lagoon complex, highlighting variations linked to hydrological regimes and high- and low-water periods.
Sustainable water management for rice cultivation under climate change: a case study of the Lower Ouémé Valley, Southern Benin
Marilyn Karen Soudé, Luc Ollivier Sintondji, David Houéwanou Ahoton, and René Bodjrènou
Short summary
The Lower Ouémé Valley is suitable for rice production but faces water-management challenges. Smart-Valleys and the System of Rice Intensification can improve productivity while conserving water resources.
This research shows how family farms in Kandi are affected by rainfall-induced flooding. Smaller farms are more vulnerable because of limited resources, highlighting the need for inclusive resilience strategies.
Spatiotemporal analysis of meteorological and hydrological droughts across the Beninese part of the Niger River Basin (West Africa)
Orou Moctar Ganni Mampo, Kossi François Guedje, Ezéchiel Obada, Halissou Yarou, Bruno Merz, Ravi Kumar Guntu, Jean Hounkpe, and Adéchina Eric Alamou
Short summary
The study explores meteorological and hydrological drought evolution in northern Benin. It indicates improvements after the major droughts of the 1970s–1980s, but also longer dry spells and recent worsening water shortages.
This contribution presents a simple system for monitoring and automatically adjusting water conditions in above-ground fish-farming tanks. Tests show more stable environments and potential to improve smallholder production.