Ecological improvement of freshwater ecosystems benefits fish and people

(Image: Pixabay CC0) - Freshwater biodiversity is declining at alarming rates. In a large-scale effort, a research team led by the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) and the Humboldt Universität zu Berlin (HU) in cooperation with angling clubs, has conducted whole-lake experiments in 20 lakes to improve ecological conditions. Habitat improvements were the most effective means to enhance fish populations, whereas fish stocking completely failed. The study published in the journal Science emphasizes the importance of restoring habitats and improving natural ecosystem processes, which benefits fish populations, conservation and fisheries. Biodiversity is declining rapidly. Many conservation actions focus on single species. An alternative approach is to comprehensively improve ecological processes and habitats, thereby supporting entire species communities.