Fish and forests for food security at the watershed scale: Assessment and situational analysis of the Magdalena and Atrato river basins in Colombia.

This paper analyzes the Magdalena and Atrato river basins in Colombia, highlighting their environmental challenges. The Magdalena basin, which supplies 90% of the population, faces a serious crisis due to industrial, mining and agricultural pollution, as well as deforestation and changes in land use, which affects biodiversity and fisheries. The Atrato watershed, with a smaller population and greater forest cover, suffers similar impacts, although to a lesser extent, but they could worsen without adequate management. Integrated resource management, with collaboration between authorities and communities, is recommended to protect ecosystems and ensure the sustainability of fisheries.