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From experiment to reality: feasibility and effectiveness of biomanipulation in mountain rivers (BIOEFFEKT II)
Project
Project code: 2818BM084
Contract period: 01.06.2019
- 31.12.2022
Budget: 1,006,170 Euro
Purpose of research: Demonstration
Keywords: biological diversity, water (water protection, water supply system), environment and nature protection, genetic resources, fish, other aquatic organisms, aquatic genetic resources, limnic organisms
The submitted project refers to point 2.2.1 of the funding guidelines (innovative measures for the improvement of agroecosystems and ecosystem services) and aims at the protection and restauration of important ecosystem services of the hyporheic zone in mountain rivers impacted by nutrient input from agriculture in the catchment area. One possibility to achieve an improvement of the habitat quality of the hyporheic zone is to apply the approach of food web control (biomanipulation). By boosting the ecosystem function ‘benthic grazing’, eutrophication effects like clogging of the sediments can be reduced in spite of a certain remaining nutrient input. In the context of the experimentally proven effectiveness of food web control via boosting the stock of large fish species, the project will analyse whether this measure can be applied in principle (nation-wide) to ensure and improve ecosystem services of eutrophic mountain streams under realistic conditions. In addition, it will be analysed whether predation of fish by cormorant has a considerable effect on the fish stocks, which are important for food web control. Thereby, the project will contribute to apply scientific findings regarding effectiveness of food web control in practical river protection applications. Thus, it will be seminal for biodiversity conservation efforts in agriculturally used catchment areas.
Section overview
Subjects
- Freshwater fisheries
- Landscape Planning
