LUMIÈRE

Light spectrum effect on the microphytobenthos photobiology in the Bay of Brest : involvement in the coastal primary productivity.

Coordination

Johann Lavaud

Project type

International

Funding

EC2CO Microbiome

Project duration

Start Date

January 1, 2022

End Date

December 31, 2024

Links

  The general objective of the LUMIÈRE project is to better understand the complex interaction between the light spectrum at the surface of coastal sediments, the vertical migration of microphytobenthos (MPB), its accumulation at the sediment surface and its photosynthetic activity, and how ultimately all of these govern the primary productivity of the sediments of the bay of Brest at different time scales (i.e. from emersion to season). The project will answer two main questions: 1) what are the effects of light quality on the rhythmicity of MPB vertical migration and on the productivity of subtidal and intertidal sediments, 2) how do MPB diatoms perceive and use blue wavelengths ?

The team

Contributors

  • Kevin Heggarty, Département d’Optique, IMT Atlantique, Plouzané.
  • Vona Méléder, Isomer-Institut des Substances et Organismes de la Mer, Université de Nantes.
  • Angela Falciatore, UMR7141, IBPC-Institut de Biologie Physico-Chimique, CNRS/Sorbonne Université.
  • Marianne Jaubert, UMR7141, IBPC-Institut de Biologie Physico-Chimique, CNRS/Sorbonne Université.
  • João Serôdio, Department of Biology and CESAM-Center for Environmental and Marine Studies, Universidade de Aveiro, Portugal.