This project aims to develop and apply a non-invasive method for monitoring migratory fish flows in the Sélune River. The development of this method is based on the analysis of images and videos taken by a hydroacoustic camera positioned in the watercourse.

This project establishes a baseline, including dams, for trophic interactions between aquatic biocoenoses present on the Sélune, ranging from microorganisms to fish, in tributaries and the river itself from its source to its entry into the estuary.