Project Description

Project Context :

Anthropization generates diverse pressures that threaten aquatic biodiversity. The effects of emerging contaminants and their extent on the structure of aquatic communities are poorly documented, particularly in lake ecosystems subject to multiple pressures. The WFD requires the assessment of waterbodies by comparing the bioindicators observed in these environments versus those under reference conditions. However, these integrative biological indicators of the status of water bodies primarily reflect the trophic level of the environments, with no indication of the presence and impact of micropollutants.

Project Objectives :

IPANEMA aims at assessing the local (riverine inputs of agricultural and pharmaceutical compounds) and global impacts of micropollutants on the biodiversity of Jaunay lake, subject to present and future (reuse) anthropic pressures. To this aim, the composition (taxonomic, traits) of communities of diatoms, macrophytes, phytoplankton and fish are used.

Project Results

The results of this project will allow to assess the effects of micropollution on the biodiversity of waterbodies, by developing various relevant potential impact indicators from the available surveys collected by the national methods currently in use. These taxonomic and functional metrics can be combined into multimetric tools, which will make it possible, in the future, to monitor the impacts of discharges from the reuse demonstrator on Jaunay lake, compared to a nearby “reference” (Apremont lake).

To go further

Contact : soizic.morin@inrae.fr