Modélisation dynamique de l'écosystème benthique du bassin de Marennes-Oléron : couplage benthos - pelagos

Moritz Charlotte

Laboratoire Arago - UMR 7621
Avenue du Fontaulé - BP 44
66651 Banyuls-sur-Mer

PhD 2006-2009.

Research advisors :

Jean-Marc GUARINI
Laboratoire Arago - UMR 7621
Avenue du Fontaulé - BP 44
66651 Banyuls-sur-Mer

Katell GUIZIEN
Laboratoire Arago - UMR 7621
Avenue du Fontaulé - BP 44
66651 Banyuls-sur-Mer

This work is funded by the MENR, the CNRS and the program ANR – VASIREMI.

Modelling, coastal area, food web, bentho-pelagic coupling, ecology, Marennes-Oléron, ECO3M.

This PhD focuses on marine coastal ecosystems. In such ecosystems, fauna might be of very high diversity in terms of taxa, individual sizes and functional groups. Organisms might have different forms through their life cycle. Identifying the major groups that can form homogeneous compartments and the links between those is an important issue in marine ecosystem theoretical modelling.
Moreover, coastal ecosystems are characterised by the significant link between pelagic and benthic fractions as well as the complexity of the species and functional groups. The modelling study should therefore include strong coupling between benthic and pelagic organisms.

Elaborate a bentho-pelagic coupled model of the Marennes-Oléron Bay taking into account the physical environment such as temperature, tide and hydrodynamics (VASIREMI project).

Moritz, C.M., Montagnes, D., Carleton, J.H., Wilson, D., McKinnon, A.D., 2006. The potential role of microzooplankton in a northwestern Australian pelagic food web. Marine Biology Research, 2, pp. 1-13.

Guarini, J.M., Sari, N., Moritz, C.M. Modelling the dynamics of the microalgal biomass in semi-enclosed shallow-water ecosystems. Submitted to Ecological Modelling.

Moritz, C.M., McKinnon, A.D., Carleton, J.H. Summer variation in abundance and biomass of microzooplankton of the North West Cape, Australia (poster). AMSA Conference, 6-9 july 2004, Hobart (Tasmania, Australia).