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Laboratoire d'Ecogéochimie des Environnements Benthiques
UMR 8222

Katell Guizien


With a fluid mechanics background, I develop research about the influence of hydrodynamics on the functioning and structuration of benthic communities. My first focus goes to the role of connectivity on resilience capacity of benthic invertebrates meta-communities (polychaetes, gorgonians, corals) in the context of global change and protection actions. I therefore develop mechanistic numerical models for meta-populations and meta-communities in which connectivity is quantified using numerical simulations of Lagrangian dispersal including the effect of larval motility derived from experimental studies. My second reaserch line concerns the dynamics of micro-organisms communities living at the water-sediment interface and their associated biogeochemical functions under extreme physical forcing (intertidal mudflat biofilm dynamics, early diagenesis under swell and wind waves events in the nearshore zone). I hence develop numerical models coupling turbulence dynamics in bottom boundary layers and early diagenesis and carry out experiments on organic matter degradation in which turbulence unsteadiness is controlled.

On-going and recently finished research projects:


Liteau project Roc Connect: Connectivity of hard-bottom substrates in the Gulf of Lions

EC2CO project DynDiagHyd: Organic matter degradation dynamics under unsteady hydrodynamics

ANR project Vasiremi : Trophic significance of microbial biofilms in tidal flats

EC2CO project CRUMED : Impact of Mediterranean flash-flooding events in the nearshore zone: vine-growing and tourism uses.

Contact Informations

Phone : +33 (04) 68 88 73 19
Mail(s) : katell.guizien@obs-banyuls.fr

Function and attachment

Researcher CNRS (Chargée de recherches 1ère classe, CR1 HDR)


Publications since 2003:


GUIZIEN K., BELHARET M., MARSALEIX P., GUARINI J.M. (2012) Using larval dispersal simulations for Marine Protected Area design: application to the Gulf of Lions (NW Mediterranean). Limnol. and Oceanogr. 57(4), 2012, 1099-1112 | DOI: 10.4319/lo.2012.57.4.1099.

GUIZIEN K., ORVAIN F., DUCHENE J.-C., LE HIR P. (2012) Accounting for rough bed friction factors of mud beds due to biological activity in erosion experiments. J. Hydr. Eng. 138(11), 979-984 (2012); http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000627


Philippart CJ.M., Amaral A. , ASMUS R., van Bleijswijk J., Bremner J., Buchholz F., Cabanellas-Reboredo M., Catarino D., Cattrijsse A., Charles F., ComteT T., CUNHA A., Deudero S., Duchêne J.-C., FRASCHETTI S., Gentil F., GITTENBERGER A., Guizien K. ,  Gonçalves J. M., Guarnieri G., Hendriks I., Hussel B., Pinheiro Vieira R., REIJNEN B.T., Sampaio I. ,  Serrao E., Sousa Pinto I., Thiebaut E., Viard F., ZUUR A.F. (2012) Spatial synchrony in the seasonal occurrence of larvae of oysters (Crassostrea gigas) and mussels (Mytilus edulis/galloprovincialis) in European coastal waters. Est. and Coastal Shelf Sci. 108 :52-63.


X. Durrieu de Madron, C. Guieu, R. Sempéré, P. Conan, D. Cossa, F. D’Ortenzio, C. Estournel, F. Gazeau, C. Rabouille, L. Stemmann, S. Bonnet, F., Diaz, P. Koubbi, O. Radakovitch, M. Babin, M. Baklouti, C. Bancon-Montigny, S. Belviso, N. Bensoussan, B. Bonsang, I. Bouloubassi, C. Brunet, J.-F. Cadiou, F. Carlotti, M. Chami, S. Charmasson, B. Charrière, J. Dachs, D. Doxaran, J.-C. Dutay, F. Elbaz-Poulichet, M. Eléaume, F. Eyrolles, C. Fernandez, S. Fowler, P. Francour, J.C. Gaertner, R. Galzin, S. Gasparini, J.-F. Ghiglione, J.-L., Gonzalez, C. Goyet, L. Guidi, K. Guizien, L.-E. Heimbürger, S.H.M. Jacquet, W.H. Jeffrey, F. Joux, P. Le Hir, K. Leblanc, D. Lefèvre, R. Lemé, M.-D. Loye-Pilot, M. Mallet, L. Méjanelle, F. Melin, C. Mellon, B. Mérigot, P.-L. Merle, C. Migon, W.L. Miller, L. Mortier, B. Mostajir, L. Mousseau, T. Moutin, J. Para, T. Perez, A. Petrenko, J.-C. Poggiale, L. Prieur, M. Pujo-Pay, Pulido-Villena, P. Raimbault, A.P. Rees, C. Ridame, J.-F. Rontani, D. Ruiz Pino, M.A. Sicre, V. Taillandier, C. Tamburini, T. Tanaka, I. Taupier-Letage, M. Tedetti, P., Testor, H. Thébault, B. Thouvenin, F. Touratier, J. Tronczyňski, C. Ulses, F., Van Wambeke, V. Vantrepotte, S. Vaz, R. Verney (2011) Marine ecosystems’ responses to climatic andanthropogenic forcings in the Mediterranean by ’The MERMEX Group’, Progress in Oceanography, doi:10.1016/j.pocean.2011.02.003 (IF2011 : 3.14/ Q1 in Oceanography / 6 citations)


CHATELAIN M., GUIZIEN K. (2010) Modelling coupled turbulence - dissolved oxygen dynamics near sediment-water interface under wind waves and sea swell. Water Res. 44(5): 1361-1372 Doi:10.1016/j.watres.2009.11.010.


GUIZIEN K., CHARLES F., HURTHER D., MICHALLET H. (2010) Spatial redistribution of Ditrupa arietina (soft bottom Mediterranean epifauna) during a moderate swell event: evidence and implications for biotic quality indices. Cont. Shelf Res 30: 239-251.


GUIZIEN K. (2009) Spatial variability of wave conditions in the Gulf of Lions (NW Mediterranean sea). Life and Env. 59(3-4):1-10.


MORITZ C., LOEUILLE N., GUARINI JM, GUIZIEN K. (2009) Quantifying the dynamics of marine invertebrate metacommunities: what processes can maintain high diversity with low densities in the Mediterranean Sea ? Ecol. Model. 220(21):  3021-3032.


VAN DER WERF J.J., MAGAR V., MALARKEY J., GUIZIEN K., O'DONOGHUE T.  (2008) 2DHV modelling of sand transport processes over full-scales ripples in regular oscillatory flow. Cont. Shelf Res. 28: 1040-1056.


LABRUNE C., GREMARE A., GUIZIEN K., AMOUROUX J.-M. (2007) Long-term comparison of soft bottom macrobenthos in the Bay of Banyuls-sur-Mer (Northwestern Mediterranean Sea): A reappraisal. J. Sea Res. 58: 125-143.


GUIZIEN K., CHARLES F., LANTOINE F., NAUDIN J.-J. (2007) Nearshore dynamics of nutrients and chlorophyll during Mediterranean-type flash-floods. Aquatic Liv. Res. 20(1): 3-14.


MOULIN F.Y., GUIZIEN K., THOUZEAU G., CHAPALAIN G., MÜLLENERS K., BOURG C. (2007) Impact of an invasive species Crepidula fornicata on the hydrodynamics and transport properties of the benthic layer. Aquatic Liv. Res. 20(1): 15-31.


GUIZIEN K., BROCHIER T.,  DUCHENE J-C., KOH B-S., MARSALEIX P. (2006)  Dispersal of Owenia fusiformis larvae by wind-driven currents: turbulence, swimming behaviour and mortality in a three-dimensional stochastic model. Mar. Ecol. Prog. Ser. 311: 47-66.


FERRE B., GUIZIEN K., DURRIEU DE MADRON X., PALANQUES A., GUILLEN J., GREMARE A. (2005) Fine-grained sediment dynamics during a strong storm event in the inner-shelf of the Gulf of Lion (NW Mediterranean)  Cont. Shelf Res. 25: 2410-2427.


GUIZIEN K., DOHMEN-JANSSEN M., VITTORI G. (2003) 1DV bottom boundary layer modeling under combined wave and current : turbulent separation and phase lag effects. J. Geophys. Res., 108 (C1), 16 : 1-15.

French and foreign diplomas

2011:  Habilitation à Diriger des Recherches de l'Université Paul Sabatier, Toulouse, France,

Influence of the hydrodynamics on the dynamics of nearshore benthic communities and their geochemical environment

1995 - 1998:  Doctorat de Géophysique de l' Université Joseph Fourier, Grenoble, France.

Long internal waves: generation and interaction with surface wave

1994 - 1995: DEA Mécanique des Milieux Geophysiques et Environnement, Université Joseph Fourier, Grenoble, France.

1992 - 1995 :  Ecole d'Ingénieur, Hydraulique et Mécanique, INP Grenoble, France.

Katell Guizien (katell.guizien @ obs-banyuls.fr) - 11/06/16

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