Isotopic ecology - marine food webs
My research activity is related to the trophic functioning of coastal ecosystems. More precisely, I use stable isotopes as first tool in order to develop the next axes:
Structure and functioning of food webs associated to benthic communities (rocky shores, mudflats, salt marshes, kelp forests) submitted to various anthropogenic impacts.
Properties of food webs: stability, plasticity, connectivity, diversity of trophic pathways
Long term monitoring using natural stable isotopes in rocky shores and soft bottom substrates
Experimentations based on stable isotopes labelling (13C, 15N) to characterized and quantify trophic fluxes from nutrients to algae to invertebrates, and the fate of molecular compounds (alginates) via the use of various isotopic technics (EA-IRMS, DNA-SIP, NanoSIMS) and metagenomics
Associate professor at Sorbonne University - Station Biologique de Roscoff since 1998
2005 : Habilitation à diriger des recherches, Sciences de la Vie et de la Santé, UPMC Isotopic ecology. Contribution of carbon and nitrogen to the study of littoral and coastal food webs.
1996-1998: Contract post-doctoral at “Marine Science Institute” (Texas) and Marie Curie - Training Mobility Research au NIOO-CEME (The Netherlands) -
1995: PhD of University of Bordeaux I. Oceanography. Origin and fate of organic matter in an estuarine ecosystem. Application of natural stable isotopes.
Biostatistics, Ecology, Zoology, stable isotopes