Institut Méditerranéen d’Océanologie
Photo de RAIMBAULT Patrick
RAIMBAULT Patrick      
Fonction : Directeur de recherche CNRS
Equipe: CE
Bureau: 0, Etg: 1, Bât: Pacifique - Site : Luminy

  • Médaille de bronze CNRS
Activités de Recherche:     
The aim of my research work concerns the carbon and nitrogen cycles in marine environment and especially in, the upper layer of the ocean, so-called euphotic layer. I want quantify the carbon and nitrogen fluxes between the dissolved compartment (inorganic and organic) and primary producers (phytoplankton) and bacteria. My first researches were on the nutrients and chlorophyll distribution in various oceanic regions: Mediterranean Sea, tropical Atlantic, Equatorial Pacific, Red Sea, Arctic Ocean. The influence of hydrodynamical processes (upwelling, front, eddies) on the nutrient inputs and on the phytoplankton distribution have been described. I have improved some chemical procedures 1) to detect traces of nitrate in oligotrophic waters and 2) to measure simultaneously the level of dissolved and particulate forms of carbon, nitrogen and phosphorus. Some isotopic procedures (15N-13C) have been improved to better quantify the planktonic production, the nitrogen regeneration and the excretion of dissolved organic matter. The techniques are applied during oceanographic cruises to participate to the actual debate concerning the rule of the ocean in the long term trap of carbonic gas issued from the human activity. Present works are focused on coupled studies of biogeochemical processes which control pools of major nutrients and regulate the export of organic matter towards the deep ocean.
Domaines de Recherche:
  • Physique/Physique/Géophysique
  • Sciences du Vivant/Ecologie, Environnement
  • Sciences de l'environnement/Biodiversité et Ecologie
  • Sciences de l'environnement/Environnement et Société
  • Sciences de l'environnement/Milieux et Changements globaux
  • Sciences de l'environnement/Ingénierie de l'environnement
  • Planète et Univers
  • Planète et Univers/Océan, Atmosphère
  • Planète et Univers/Interfaces continentales, environnement
  • Planète et Univers/Sciences de la Terre/Géochimie
  • Sciences du Vivant/Microbiologie et Parasitologie
  • Sciences de l'environnement
  • Planète et Univers/Sciences de la Terre/Géophysique
  • Sciences du Vivant
  • Sciences du Vivant/Ecologie, Environnement/Interactions entre organismes
  • Sciences du Vivant/Ecologie, Environnement/Ecosystèmes
  • Sciences du Vivant/Biochimie, Biologie Moléculaire/Biologie moléculaire
  • Sciences du Vivant/Biotechnologies
  • Sciences du Vivant/Biodiversité/Systématique, phylogénie et taxonomie
  • Informatique/Biotechnologie
  • Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
  • Planète et Univers/Astrophysique
  • Planète et Univers/Sciences de la Terre
  • Planète et Univers/Sciences de la Terre/Océanographie
Dernieres productions scientifiques :
+ Nitrogen and Phosphorus Budgets in the Northwestern Mediterranean Deep Convection Region doi link

Auteur(s): Kessouri Fayçal, Ulses C., Estournel Claude, Marsaleix Patrick, Severin Tatiana, Pujo-Pay Mireille, Caparros Jocelyne, Raimbault P., Pasqueron De Fommervault Orens, D'Ortenzio Fabrizio, Taillandier Vincent, Testor Pierre, Conan Pascal

(Article) Publié: Journal Of Geophysical Research. Oceans, vol. p. (2017)

+ Nitrogen and phosphorus seasonal dynamics and annual budget in the Northwestern Mediterranean deep convection region inferred from a 3D physical/biogeochemical coupled model hal link

Auteur(s): Kessouri Fayçal, Ulses C., Estournel Claude, Marsaleix Patrick, Pujo-Pay Mireille, Severin Tatiana, Caparros Jocelyne, Raimbault P., Pasqueron De Fommervault Orens, D'Ortenzio Fabrizio, Taillandier Vincent, Testor Pierre, Conan Pascal

Conference: 19th EGU General Assembly (Vienne, AT, 2017-04-23)

+ Trophic position increases with thermocline depth in yellowfin and bigeye tuna across the Western and Central Pacific Ocean doi link

Auteur(s): Houssard Patrick, Lorrain Anne, Tremblay-Boyer Laura, Allain Valérie, Graham Brittany S., Menkès Christophe E., Pethybridge Heidi, Couturier L., Point David, Leroy Bruno, Receveur A., Hunt B., Vourey Elodie, Bonnet S., Rodier M., Raimbault P., Feunteun E., Kuhnert Petra M., Munaron Jean-Marie, Lebreton Benoit, Otake Tsuguo, Letourneur Yves

(Article) Publié: Progress In Oceanography, vol. 154 p.49 - 63 (2017)

+ A submesoscale coherent vortex in the Ligurian Sea: From dynamical barriers to biological implications doi link

Auteur(s): Bosse Anthony, Testor Pierre, Mayot Nicolas, Prieur Louis, D'Ortenzio Fabrizio, Mortier Laurent, Le Goff Hervé, Gourcuff Claire, Coppola Laurent, Lavigne Héloïse, Raimbault P.

(Article) Publié: Journal Of Geophysical Research. Oceans, vol. 122 p.6196 - 6217 (2017)

+ Dissolved organic matter uptake by Trichodesmium in the Southwest Pacific doi link

Auteur(s): Benavides M., Berthelot H., Duhamel Solange, Raimbault P., Bonnet S.

(Article) Publié: Scientific Reports, vol. 7 p. (2017)