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Africa's freshwater ecosystems host at least 3,281 fish species, most of which are endemic, supporting millions of people through fisheries and providing critical ecosystem services. However, approximately 26% of these species are threatened with extinction due to damming, pollution, over-abstraction of water, invasive species, and climate change. The report highlights the critical role of the African Great Lakes and major river basins, the economic potential of the aquarium and recreational angling trades, and the urgent need for integrated management through initiatives like the Freshwater Challenge and the use of eDNA monitoring.

The document outlines a collaborative project using the SEI nexus toolkit—integrating the Water Evaluation and Planning (WEAP) and Long-range Energy Alternatives Planning (LEAP) systems—to analyze trade-offs and synergies in Ethiopia's upper Blue Nile region. Initial findings indicate that while increased irrigation can reduce water for hydropower and the environment, optimized dam operations can meet both energy and environmental goals. Additionally, the study highlights a link between energy transitions and agriculture, noting that shifting away from traditional biomass could improve soil productivity.

The document examines the food-energy-water nexus in Ethiopia's Lake Tana and Beles River basins, using the SEI nexus toolkit (WEAP-LEAP) to model three development scenarios. It finds that agricultural intensification and energy transitions are interdependent and potentially competitive, noting that Ethiopia has reached a "biomass ceiling" where demand for fuel, food, and fodder equals primary productivity. The analysis highlights trade-offs between hydropower production and maintaining critical water levels in Lake Tana, suggesting that a coordinated nexus approach is essential to meet the targets of the Growth and Transformation Plan (GTP) and the Climate Resilient Green Economy Strategy (CRGE) without compromising environmental sustainability.

The document argues that sustainable governance of water, energy, and food requires an integrated nexus approach to reduce trade-offs and generate co-benefits. Using a scoping study of 85 organizations in Ethiopia's Tana and Beles basins, it demonstrates that social network analysis can identify the formal and informal relationships necessary to move beyond siloed sectoral management. The findings reveal that while some connections exist, relationships largely follow administrative and sectoral boundaries, with stronger vertical ties than horizontal ones, hindering the coordinated decision-making required for comprehensive solutions.