Assessing the effects of stream restoration requires long-term monitoring, before and after restoration. Today, it is still difficult to evaluate and to predict the effects of restoration projects. Long-term monitoring of physical restoration actions are opportunities for testing quantitative ecological models, e.g. physical habitat models based on biological response to the hydraulic habitat (e.g., http://www.irstea.fr/estimhab)
Together with the University of Lyon, we coordinate the scientific monitoring of the Rhône River restoration (Rhoneco program: http://restaurationrhone.univ-lyon1.fr) made over several decades and in 8 reaches of the river. The restoration combined increased minimum flow increases below dams and increased connectivity of many floodplain channels. Fish and invertebrate responses are partly predictable by eco-hydraulic models.
Predicting the effects of minimum flow increases
and floodplain channel re-connection
UMR 5023 Olivier et al.
The team aims to strongly increase its implication in innovative long-term monitoring programs at large spatial scales. This involves the visual monitoring of fish communities over large scales: