Lars Stemmann

Lars Stemmann                                                Docteur en oceanographie

Station Zoologique

BP 06234

Villefranche sur Mer

( 33 (0)4 93 76 38 11

stemmann@obs-vlfr.fr

Formation :

Oct. 2008

Habilitation à Diriger des Recherches soutenue à l’Université Pierre et Marie Curie

1993-1998

Doctorat en Océanographie Biologie avec mention très honorable et félicitations du jury à l’Université PARIS VI, Analyse spatio-temporelle de la distribution du plancton et de la matière particulaire sous l’influence de l’hydrodynamisme en Méditerranée.

1992-1993

D.E.A. d’Océanologie à l’Université PARIS VI, mention Analyse de données et Modélisation.

1991-1992

Maîtrise de Biologie des Organismes mention Océanographie à l’Université PARIS VI

1990-1991

Licence de Biologie des Populations à l’Université LYON I.

Expériences professionnelles :

Depuis Sept. 2003

Enseignant Chercheur à l’Université Pierre et Marie Curie

Nov. 2002 – Avril 2003

Chef de Projets à SAFEGE CETIIS dans le département d’océanographie.

Nov. 2000 –
Sept. 2002

Chercheur associé à l’Université du Texas A&M. Biodiversité microbienne et modèle de la dynamique de particules marines.

Nov. 1998 –
Oct. 2000

Agent de développement des Technologies de l’Information et de la Communication à l’IUFM de Nice, formateur et webmaster (http://www.iufm.unice.fr).

1995

Ingénieur de recherche contractuel à l’Université de Paris VI. Acquisition et traitement de données océanographiques.

BIBLIOGRAPHY :

1)  Gorsky, G., Ohman, M.D., Cawood, A., Gasparini,S., Picheral, M., Prejger, F., Romagnan, J.-B., Stemmann,L. Digital zooplankton image analysis using the ZooScan integrated analysis system (in prep for Limnology and Oceanography Method)

2)  Pieter Vandromme, Lars Stemmann, Carmen Garcia-Comas, Marc Picheral, Steven Colbert, Léo Berline, Jean-Marc Guarini, Jonathan Rault, Éric Benoît and Gaby Gorsky. Zooplankton Size Spectra. Part I: from Data to Models. (in prep for Journal of Plankton Research)

3)  Rault, J; Benoit, E; Gouze, J L; Vandromme, P; Stemmann, L. Zooplankton Size Spectra. Part II: Crustacean size based model (in prep for Journal of Plankton Research)

4)  Lama Aldman, Lars Stemmann, Stéphane Gasparini, Paul Nival, Carmen Garcia Comas, Marc Picheral, Gabriel Gorsky. Seasonal dynamic of copepods abundance and mass distributions in the NW Mediterranean waters analysed using the ZOOSCAN imaging system. (in prep for Marine Ecological Progress Series)

5)  Léo Berline, Ma Luz Fernández de Puelles, Ivona Marasović, Olja Vidjak, Maria Grazia Mazzocchi, Ioanna Siokou, Kalliopi Pagou, Georgia Assimakopoulou, Soultan Zervoudaki, Serena Fonda Umani, Alexandra Conversi, Carmen Garcia-Comas, Lars Stemmann, Frédéric Ibanez, Stéphane Gasparini, Gabriel Gorsk.  Intercomparison of six mesozooplankton time series in the Mediterranean Sea (submitted to Progress in Oceanography)

6)  Carmen Garcia-Comas, Lars Stemmann, Frederic Ibanez, Stéphane Gasparini, Grazia Mazzocchi, Leo Berline, Frank Prejger, Marc Picheral and Gabriel Gorsky. Climate and Zooplankton coupling in the Northwest Mediterranean Sea: : Bottom-up control driven by large-scale atmospheric changes (submitted to Limnology and Oceanography)

7)  Marc Picheral, Lionel Guidi, Lars Stemmann, David Karl, Ghizlaine Iddaoud, Gabriel Gorsky The Underwater Vision Profiler: A new instrument for particle size spectra and macrozooplankton studies  (submitted for Limnology and Oceanography Method)

8)  Lionel Guidi, Lars Stemmann, George A. Jackson, Frédéric Ibanez , Hervé Claustre, Louis Legendre, Marc Picheral, Gabriel Gorsky (2009, accepted) Primary producer community effect on production and export of large aggregates: A global analysis. Limnology and Oceanography

9)  Lombard, F., D. Eloire, A. Gobet, L. Legendre, L. Stemmann, J. Dolan, A. Sciandra, and G. Gorsky Experimental and modeling evidence of ciliates-appendicularians interactions. (2009, accepted). Limnology and Oceanography

10) Stemmann, L., D. Eloire, A. Sciandra, G. A. Jackson, L. Guidi, M. Picheral, and G. Gorsky (2008). Volume distribution for particles between 3.5 to 2000 μm in the upper 200 m region of the South Pacific Gyre. Biogeosciences. 5: 299-310

11)  Stemmann, L., K. Robert, M. Picheral, H. Paterson, A. Hosia, M. J. Youngbluth,  F. Ibanez, L. Guidi, F. Lombard, G. Gorsky (2008) Global biogeography of fragile macrozooplankton in the upper 100-1000 m depth inferred from the Underwater Video Profiler. ICES J. Mar. Sci.  65: 433-442

12)  Stemmann, L., Picheral, M., Gorsky, G., Youngbluth, M.J., Sørnes, T., Hosia, A., Søiland H., (2008) Gelatinous plankton vertical distribution (0-1000 m) in different water masses along the Mid Atlantic ridge in the North Atlantic. Potential impact on the midwater ecosystem. Deep Sea Research Part II 55 (1-2): 94-105.

13)  L. Guidi, G. Gorsky, H. Claustre, M. Picheral and L. Stemmann (2008) Contrasting distribution of aggregates > 100 μm in the upper kilometre of the South-Eastern Pacific. Biogeosciences. 5: 1361-1372

14)  Guidi, L., G. A. Jackson, L. Stemmann, J. C. Miquel, M. Picheral, G. Gorsky (2008). Particle  size distribution and flux in the mesopelagic: a close relationship. Deep-Sea Res. I. 55: 1364-1374

15)  Youngbluth, M., Sørnes, T., Hosia, A., Stemmann, L., (2008). Vertical distribution and relative abundance of gelatinous zooplankton near the Mid-Atlantic Ridge. Deep Sea Research Part II 55 (1-2): 119-125

16)  Hosia, A., Stemmann, L., Youngbluth, M.J., (2008). Distribution of net-collected planktonic cnidarians at the northern Mid-Atlantic Ridge. Deep-Sea Research Part II 55 (1-2) 106-118

17)  Stemmann L, Picheral M., Taupier-Letage I., Legendre L., Prieur L.,Guidi L., Gorsky G. (2008) Effects of frontal processes on marine aggregate dynamics and fluxes : an inter annual study in a permanent geostrophic front  (NW Mediterranean). Journal of Marine Systems 70: 1-20.

18) Guidi L., Stemmann L., Legendre L., Picheral M., Prieur L., Gorsky G.(2007) Vertical distribution of aggregates (>110 µm) and mesoscale activity in the Northeastern Atlantic: effects on the deep vertical export of surface carbon. Limnology and Oceanography

19)  Stemmann L., G., Jackson, G. Gorsky (2004). A vertical model of particle size distributions and fluxes in the midwater column that includes biological  and physical processes. II. Application to a three year survey in the NW Mediterranean Sea .Deep Sea Research I 51 (7): 865-884

20) Stemmann L., G., Jackson, D. Ianson (2004). A vertical model of  particle size  distributions and fluxes in the midwater column that includes biological  and physical processes. I Model formulation. Deep Sea Research I 51 (7): 885-908

21)  Gorsky G, Le Borgne R, Picheral M, Stemmann L (2003) Marine snow latitudinal distribution in the equatorial Pacific along 180 degrees JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 108 (C12): Art. No. 8146

22)  Denis M., Martin V., Momzikoff A., Gondry G., Stemmann L., Demers S., Gorsky G. and Andersen V. (2003) Pulsed remineralisation in the northwestern Mediterranean Sea: a hypothesis, Journal of Marine Systems, 39 :19-41

23) Stemmann L., G. Gorsky, J-C. Marty, M. Picheral, J-C. Miquel (2002) Four years survey of Large Particles (>0.15 mm) vertical distribution (0-1000 m) in the NW Mediterranean. Deep Sea Research II, 49 (11) 2143-2162.

24) G. Gorsky, L. Prieur, I. Taupier-Letage, L. Stemmann, M. Picheral (2002) Large Particulate Matter (LPM) in the Western Mediterranean. I - LPM distribution related to mesoscale hydrodynamics. Journal of Marine Research. 33-34: 289-311.

25)  Stemmann, L., Picheral, M., and Gorsky, G. (2000) Diel variation in the vertical distribution of particulate matter (>0.15 mm) in the nw mediterranean sea investigated with the underwater video profiler, Deep-Sea Research Part I, 47, 505-531,.

26)  Gorsky, G., Picheral, M., and Stemmann, L. (2000): Use of the underwater video profiler for the study of aggregate dynamics in the north mediterranean, Estuarine Coastal & Shelf Science, 50, 121-128.

Stage en entreprise :

1995 et 1996

Convention entre l’Université de Paris VI et Océan Polaire, 2 fois 3 mois, en Norvège, dans le cadre de la mission Spitzberg de l’ANTARCTICA du Dr Jean Louis Etienne, Responsable du projet scientifique.

Divers :

Prix

Activités / Loisirs

- Lauréat Défi Jeune décerné par le Ministère de Jeunesse et Sport pour la réalisation du programme scientifique et pédagogique sur l’Antarctica au Spitzberg (1996).

- Sauveteur en mer à la Société Nationale de Sauvetage en Mer (1988-1993).

- Plongée, voile et plusieurs séjours en Norvège, Suède, Allemagne, Etats Unis et Liban.