Ecological implications of restoring sediment flows in regulated rivers.

The ECOSEDRIV project understands and quantifies the interactions between suspended sediments, flow regime and biological communities in highly regulated rivers to design new reservoir management schemes to restore sediment flow towards the coast in a sustainable way.

ECOSEDRIV takes the lower Ebro River as a model of highly regulated river systems with a strong sediment deficit and where large floods were suppressed, to test the hypotheses raised by the project.

Deltas are among the most vulnerable coastal systems and require sediment inputs for their progradation and vertical accretion. In this sense, the Ebro delta is a perfect example of this global problem and is one of the most cited in the literature to illustrate the deficit of river sediments and its effect on coastal dynamics.

The development of nature-based solutions (NbS) is necessary to increase the delta’s resilience to climate change. Restoration of fluvial processes, such as river flows and sediment flows, is one of the most suitable NbS to stop coastal erosion and increase delta elevation.

Eurecat participates in the ECOSEDRIV project through its Climate Solutions and Ecosystem Services (CLIMSES) Unit, responsible for the overall coordination of the project and for carrying out the interpretation of the overall results, while the Nutrition and Health Unit analyses the effects of suspended sediment concentration on the fish fauna using physiological stress biomarkers.

General details


ECOSEDRIV — Ecological implications of restoring sediment fluxes in regulated rivers

Project reference


Programme and call for tender

Project funded by the Spanish Ministry of Science, Innovation and Universities through the 2021 call for Strategic Projects Oriented to the Ecological Transition and the Digital Transition, of the State Plan for Scientific, Technical and Innovation Research 2021-2023, within the framework of the Recovery, Transformation and Resilience Plan

Related ODS

6. Clean water and sanitation

13. Climate action

15. Life on land