Ingénieur(e) de recherche

cariou SBR

Thierry Cariou

Research Engineer in marine chemistry

CNRS - FR 2424 Access to Marine Ecosystem and Ressources: Observation Service

Work experience

Chemist engineer at the Station Biologique de Roscoff (SBR), France.

  • Technical manager in the national observatory network (SOMLIT ) for the SBR lab: fortnightly samplings off Roscoff to provide biogeochemical analysis and data to the national observatory dataset. SOMLIT (Observatory Service of Coastal Environment) program have been making repeated bi-monthly observations of the hydrography, chemistry and biology of the water column at two stations off Roscoff. The aim of this network is to establish a long-term time-series, providing a normality situation, the trends and to underscore the anthropogenic or climatic forcing in coastal areas. Ten other French marine labs participate to this network.
  • Member of the national “COAST HF” network : implementation of autonomous sensors systems in coastal waters. Technical manager of the Astan buoy system
  • Quality manager for the SOMLIT program at the SBR: ISO/IEC 17 025 Standards.
  • Chemical analyst in the “Marine Chemistry” team at the Station Biologique de Roscoff (SBR).
  • Supervision of students.



1993: Master of Science in Environmental Chemistry, University of Rennes I, France.

Work skills

Analytical chemistry techniques :

  • Seawater nutriments analysis by auto-analyzers II and III in lab and on board. Participation to several national (IFREMER EIL from 2006 to 2014) and international (conducted by Aoyama in 2008-2012-2015) inter-laboratory exercises of certified reference material for nutrients in seawater.
  • Spectrophotometry : Ammonia, pH.
  • Fluorimetry: Chla, ammonia.
  • Potentiometry: Dissolved Oxygen by the Winkler method, Total Alkalinity.
  • CHN elemental compounds analyzer : POC and NOP.

Yearly participation to the national SOMLIT intercomparison to improve the analytical techniques between the labs of this network.

Oceanographical instruments :

  • Sea-Bird SBE19+ v2 profiler. Sea-Bird SBE16+ and Sea-Bird SBE39 mooring systems.
  • SAMI CO2, Sunburst LLC : pCO2 mooring instrument.

Field experiences/Oceanographic cruises

Open Ocean:

  • SEMANE: 2 cruises in 2001 and 2002 (Cadiz Gulf, N/O D’Entrecasteaux and Thalassa) : Nutrients analysis on board.
  • OVIDE: 4 cruises in 2002, 2004, 2006, 2008 (North Atlantic, N/O Thalassa and RV Maria Sylilla Merian) : Nutrients analysis on board.
  • Tests and validation for the first cruise, in 2003, of the BHO Beautemps-Beaupré: validation of the sampling and measurements system (CTD-Rosette)
  • ORCHESTRA project:  JC159 cruise, 2018 (South Atlantic 24 S, RRS James Cook): Nutrients analysis on board.
  • GO-SHIP JC 191 cruise: section A05 (North Atlantic 24 N, RRS James Cook): Nutrients analysis on board.

Coastal Ocean:

  • CO2ARVOR: 3 cruises in 2009-2010 (Biscay Gulf, N/O “Thalia” and N/O “Côtes de la Manche”) : Dissolved oxygen, nutrients analysis and CTD.
  • CARBORHONE: 4 cruises in 2011-2012 (Gulf of Lion, Mediterranean Sea. N/O Europe, N/O Tethys) : Nutrients analysis, underway pCO2 on equilibration-IR system, and CTD.
  • Fortnightly sampling cruises since 2000 (South Western Channel, off Roscoff. N/O Neomysis) : Physical, chemical and biological parameters to SOMLIT dataset ( ).


Last publications :

S. M. Dittami et al., « Revisiting Australian Ectocarpus subulatus (Phaeophyceae) from the Hopkins River: distribution, abiotic environment, and associated microbiota », 2019.

Birchill, A.J., Clinton-Bailey, G., Hanz,  Mawji, E., Cariou, T., White, C., Ussher, S.J., Worsfold, P.J., Achterberg, E.P., Mowlem, M. Realistic measurement uncertainties for marine macronutrient measurements conducted using gas segmented flow and Lab-on-Chip techniques. Talanta, 200, 228-235, 2019.

Rombouts, I., Simon, N., Aubert, A., Cariou, T., Feunteun, E., Guérin, L., McQuatters-Gollop, A., Rigaut-Jalabert, F., Artigas, L.F. Changes in marine phytoplankton diversity: assessment under the Marine Strategy Framework Directive. Ecological Indicators, 102,265-277, 2019.

Qui-Minet Z. N. et al., « Combined effects of global climate change and nutrient enrichment on the physiology of three temperate maerl species », Ecology and Evolution, vol. 9, no 24, p. 13787‑13807, 2019, doi: 10.1002/ece3.5802.

Qui-Minet Z. N, C. Delaunay, J. Grall, C. Six, T.Cariou, O. Bohner, E. Legrand, D. Davoult, S. Martin. The role of local environmental changes on maerl and its associated non-calcareous epiphytic flora in the Bay of Brest. Estuarine, Coastal and Shelf Science, vol.208, 140-152, 2018.

E. Legrand, P. Riera , L. Pouliquen, O. Bohner, T. Cariou, S. Martin. Ecological characterization of intertidal rockpools: Seasonal and diurnal monitoring of physico-chemical parameters. Regional Studies in Marine Science 17, 1–10. 2018.

Marrec and al. Coupling physics and biogeochemistry thanks to high-resolution observations of the phytoplankton community structure in the North-Western Mediterranean Sea. Journal Biogeosciences,15(5):1579-1606. 2018.

Lienart et al. Dynamics of particulate organic matter composition in coastal systems: a spatio-temporal study at multi-systems scale. Progress In Oceanography, vol. 156, 221-239. 2017.

Aoyama and al. IOCCP-JAMSTEC 2015 Inter-laboratory calibration exercise of a certified reference material for nutrients in seawater. IOCCP report number 1/2016. 2016.

A-C. Baudoux, H. Lebredonchel, H. Dehmer, M. Latimier, R. Edern, F. Jalabert,L. Guillou, E. Foulon, Y. Bozec, T. Cariou, Y. Desdevises, E. Derelle, N. Grimsley, H. Moreau, and N. Simon.  Interplay between Micromonas species and their viruses in the Western English Channel. Environmental Microbiology Reports. Vol. 7, issue 5, pp 765-773, 2015.

A.Kopf and al. The Ocean sampling day consortium. Gigascience, 4:27, 2015.

P. Marrec, T. Cariou, E. Macé, P. Morin, L. A. Salt, M. Vernet, B. Taylor, K. Paxman, and Y. Bozec. Dynamics of air–sea CO2 fluxes in the North-West European Shelf based on Voluntary Observing Ship (VOS) and satellite observations. Biogeosciences Discuss. 12, 5641-5695, 2015.

P. Marrec, T. Cariou, E. Macé, P. Morin, L. A. Salt, M. Vernet, B. Taylor, K. Paxman, and Y. Bozec. Dynamics of air–sea CO2 fluxes in the North-West European Shelf based on Voluntary Observing Ship (VOS) and satellite observations. Biogeosciences Discuss., 12, 5641-5695, 2015