Bridges - People

People

Mar Benavides

Chargée de Recherche Hors Classe IRD, Mediterranean Institute of Oceanography.

My research is devoted to understanding the interactions between marine microbes and their physical, chemical and biological environment through a multi-spatiotemporal scale lens. My underlying philosophy is that processes that take place at small scales (molecule or cell level) can have impact at larger -regional or even global- scales. In the same manner, larger scale processes such as ocean circulation can alter the interactions between microbes and their environment affecting their distribution and activity. From the nanoscale to the global scale, unveiling the interactions between the marine environment and its microbes requires an interdisciplinary approach. I combine nanotechnology, molecular biology, biogeochemistry and modeling to bridge the spatiotemporal scales of microbial processes in the ocean.

mar.benavides@ird.fr

Postdocs

Elena Cerdán

Aix-Marseille Université

Project: Ecogenomics of particle-attached non-cyanobacterial diazotrophs

elena.cerdan@mio.osupytheas.fr

Christian Furbo Reeder

Aix-Marseille Université

Project: Impact of particle microbial colonization on nitrogen cycling in the ocean

christian.reeder@mio.osupytheas.fr

PhD students

Arthur Coët

Aix-Marseille Université, co-supervised by Pierre Ronceray (CINaM)

Thesis: Dynamics and architecture of diazotroph particle colonization

arthur.coet@mio.osupytheas.fr

Subhadeep Chowdhury

Aix-Marseille Université, co-supervised by Sophie Bonnet (MIO)

Thesis: Dinitrogen Fixation in the Indian Ocean: an interbasin and seasonal comparison

My research focuses on the Dinitrogen Fixation in the Indian Ocean in order to decipher the distribution and diversity of diazotrophs across basins and seasons. Also, I am trying to figure out how biogeochemical and environmental factors affect diazotrophs diversity and their N2 fixation activity in this mysterious ocean basin. In addition, I am interested to trace the alternative nitrogenases in Ocean and their potential to fixing N2.

subhadeep.chowdhury@mio.osupytheas.fr

Engineers

Pierre McCavana

IRD Engineer - Moored instrumentation design

Cécile Carpaneto

AMU Engineer - Molecular biology, at sea support, lab management

Olivier Grosso

CNRS Engineer - Mass spectrometry

Visiting students

Stine Zander Hagen is a PhD student at Lasse Riemann's lab (Unversity of Copenhaguen, Denmark). She will be visiting us in January 2024 to analyze IRMS and MIMS samples from an Arctic Ocean cruise

Jana Härri is a Master student at Nicolas Gruber's lab (ETH-Zürich, Switzerland). She will be visiting us in April 2022 to analyze qPCR diazotroph samples from the North Atlantic Ocean

Lisa von Friesen is a PhD student at Lasse's Riemann's lab (Unversity of Copenhaguen, Denmark). She will be visiting us in October to analyze IRMS and MIMS samples from an Arctic Ocean cruise

Christian Furbo Reeder from the SDU (Germany) is visiting us in December 2021 to learn diazotroph culturing techniques and work of nifD gene annotation together with Subhadeep Chowdhury in the frame of the projects DINDE/IDEFIX

Jacqueline Umbricht and Angelina Klett from the Leibniz-Baltic Sea Research Institute (Germany) are visiting us in summer 2021 to work on the NOTION project experiments