Our Research
Our research focuses on descriptive, functional, and evolutionary ecology. We explore marine ecosystems through their dynamics at various geographic and temporal scales, from molecular processes to complex communities. The different AD2M teams direct their inquiries toward organisms distributed across the entire tree of life: from photosynthetic prokaryotes to all unicellular eukaryotes (protists) in plankton, and from macroalgae to various marine invertebrates, mainly benthic.
We have collective expertise in ecology, evolution, physiology, biogeochemistry, and oceanography.
Our work spans the entire oceanic domain and relies on oceanographic expeditions to explore remote areas, from the pelagic environment down to the deep sea.
Contact(s)
- Laure GuillouDirector of the department
- Eric BonnivardCo-director
- Céline ManceauExecutive assistant
News
Scientific publication
[PNAS] How to upgrade stolen organelles into permanent plastids : A comparative transcriptomic perspective
Published on October 24, 2025
4 research teams
Team ECOPHY - Ecophysiology of Marine Invertebrates
The team takes a hologenomic approach, which considers the organism and its associated microbiota, as well as the different levels of interaction between them. The team focuses on species that have biological, societal, and economic importance, such as shellfish and other invertebrates that are commercially harvested for food
Team ECOMAP - Ecology of Marine Plankton
The team is studying the diversity, ecology, physiology and evolution of marine microbes and their interactions with other members of the community across various taxonomic and ecosystemic scales.
Team DiSEEM - Dispersal, Speciation and Evolution of Marine Species
The DiSEEM team studies connectivity between populations of marine organisms at different spatial scales and its consequences on evolutionary processes: in particular, adaptation to environmental heterogeneity, the evolution of reproductive isolation between populations, and the long-term evolution of reproductive systems and thermotolerance in marine organisms.
Team EDYMAR - Ecogeochemistry and DYnamics of MARine systems
The team focuses on the functioning of marine ecosystems. Its overall scientific approach—ecogeochemistry—examines the joint dynamics of living organisms and abiotic factors (the physico-chemical dynamics of the studied environments) and their interactions. The aim is to understand the properties and functioning of marine ecosystems, particularly coastal ones.
Publications
Phytoplankton With Flexible Pigment Content Disadvantaged by Projected Future Decrease in Variability of the Ocean Light Spectrum
Francesco Mattei, Anna E Hickman, Julia Uitz, Vincenzo Vellucci, Laurence Garczarek, et al.. Phytoplankton With Flexible Pigment Content Disadvantaged by Projected Future Decrease in Variability of the Ocean Light Spectrum. Global Change Biology, 2026, 32 (1), pp.e70671. ⟨10.1111/gcb.70671⟩. ⟨hal-05451893⟩
Estimating the reduction in genetic diversity from background selection under non-equilibrium demography and partial selfing
Alexander Mackintosh, Maxence Brault, Denis Roze, Martin Lascoux, Sylvain Glémin. Estimating the reduction in genetic diversity from background selection under non-equilibrium demography and partial selfing. Molecular Biology and Evolution, In press, ⟨10.1093/molbev/msag004⟩. ⟨hal-05456156⟩
Next release of the European Marine Omics Biodiversity Observation Network (EMO BON) shotgun metagenomic data from water and sediment samples (Release 2)
Ioulia Santi, Christina Pavloudi, Maria Abagnale, Iñigo Azua, Zuriñe Baña, et al.. Next release of the European Marine Omics Biodiversity Observation Network (EMO BON) shotgun metagenomic data from water and sediment samples (Release 2). Biodiversity Data Journal, 2026, 14, pp.e178484. ⟨10.3897/BDJ.14.e178484⟩. ⟨hal-05480555⟩
Genetic structure of sugar kelp in the St. Lawrence Estuary and Gulf (Québec, Canada) Genetic structure of sugar kelp
Marie Treillefort, Sabrina Le Cam, Myriam Valero, Stéphane Mauger, Paolo Ruggeri, et al.. Genetic structure of sugar kelp in the St. Lawrence Estuary and Gulf (Québec, Canada) Genetic structure of sugar kelp. Journal of Phycology, In press, ⟨10.1111/jpy.70141⟩. ⟨hal-05494465⟩
Evidence for seawater Mg/Ca and dietary control on Mg incorporation in oyster shells
Marie Pesnin, Laurent Emmanuel, Amélie Guittet, Boris Eyheraguidel, Gaëtan Schires, et al.. Evidence for seawater Mg/Ca and dietary control on Mg incorporation in oyster shells. Chemical Geology, 2026, 707, pp.123305. ⟨10.1016/j.chemgeo.2026.123305⟩. ⟨hal-05536912⟩
Carbon Fluxes in a Temperate Tidal Marsh Subject to Green Tides
Paul Kanfer, Pierre Anschutz, Céline Charbonnier, Bruno Deflandre, Martin Danilo, et al.. Carbon Fluxes in a Temperate Tidal Marsh Subject to Green Tides. Ocean Sciences Meeting, Feb 2026, Glascow, United Kingdom. ⟨hal-05544036⟩