T. Battin, L. Kaplan, J. Newbold, and C. Hansen, Contributions of microbial biofilms to ecosystem processes in stream mesocosms, Nature, vol.426, issue.6965, pp.439-442, 2003.
DOI : 10.1038/nature02152

G. Underwood and D. Paterson, The importance of extracellular carbohydrate productionby marine epipelic diatoms, Advances in Botanical Research, vol.40, pp.183-240, 2003.
DOI : 10.1016/S0065-2296(05)40005-1

H. Flemming and J. Wingender, Relevance of microbial extracellular polymeric substances (EPSs) -Part I: Structural and ecological aspects, Water Science and Technology, vol.43, pp.1-8, 2001.

L. Stal and A. Walsby, Photosynthesis and nitrogen fixation in a cyanobacterial bloom in the Baltic Sea, European Journal of Phycology, vol.35, issue.2, pp.97-108, 2000.
DOI : 10.1080/09670260010001735681

L. Hir, P. Monbet, Y. Orvain, and F. , Sediment erodability in sediment transport modelling: Can we account for biota effects?, Continental Shelf Research, vol.27, issue.8, pp.1116-1142, 2007.
DOI : 10.1016/j.csr.2005.11.016

R. Riethmueller, M. Heineke, H. Kuehl, and R. Keuker-ruediger, Chlorophyll a concentration as an index of sediment surface stabilisation by microphytobenthos?, Continental Shelf Research, vol.20, issue.10-11, pp.1351-1372, 2000.
DOI : 10.1016/S0278-4343(00)00027-3

E. Defew, T. Tolhurst, and D. Paterson, Site-specific features influence sediment stability of intertidal flats, Hydrology and Earth System Sciences, vol.6, issue.6, pp.971-981, 2002.
DOI : 10.5194/hess-6-971-2002

URL : https://hal.archives-ouvertes.fr/hal-00304742

N. Boogert, D. Paterson, and K. Laland, The Implications of Niche Construction and Ecosystem Engineering for Conservation Biology, BioScience, vol.56, issue.7, pp.570-578, 2006.
DOI : 10.1641/0006-3568(2006)56[570:TIONCA]2.0.CO;2

N. Goto, O. Mitamura, and H. Terai, Biodegradation of photosynthetically produced extracellular organic carbon from intertidal benthic algae, Journal of Experimental Marine Biology and Ecology, vol.257, issue.1, pp.73-86, 2001.
DOI : 10.1016/S0022-0981(00)00329-4

C. Bruckner, R. Bahulikar, M. Rahalkar, B. Schink, and P. Kroth, Bacteria Associated with Benthic Diatoms from Lake Constance: Phylogeny and Influences on Diatom Growth and Secretion of Extracellular Polymeric Substances, Applied and Environmental Microbiology, vol.74, issue.24, pp.7740-7749, 2008.
DOI : 10.1128/AEM.01399-08

K. Haynes, T. Hofmann, C. Smith, A. Ball, and G. Underwood, Diatom-Derived Carbohydrates as Factors Affecting Bacterial Community Composition in Estuarine Sediments, Applied and Environmental Microbiology, vol.73, issue.19, pp.6112-6124, 2007.
DOI : 10.1128/AEM.00551-07

A. Raszka, M. Chorvatova, and J. Wanner, The role and significance of extracellular polymers in activated sludge. Part I: Literature review, Acta hydrochimica et hydrobiologica, vol.28, issue.1, pp.411-424, 2006.
DOI : 10.1002/aheh.200500640

B. Vu, M. Chen, R. Crawford, and E. Ivanova, Bacterial Extracellular Polysaccharides Involved in Biofilm Formation, Molecules, vol.14, issue.7, pp.2535-2554, 2009.
DOI : 10.3390/molecules14072535

A. Jain, K. Nishad, and N. Bhosle, Effects of DNP on the cell surface properties of marine bacteria and its implication for adhesion to surfaces, Biofouling, vol.13, issue.3, pp.171-177, 2007.
DOI : 10.1016/S0048-9697(98)00157-0

W. Dade, R. Self, N. Pellerin, A. Moffet, and P. Jumars, The effects of bacteria on the flow behavior of clay seawater suspensions, Journal of Sedimentary Research, vol.66, pp.39-42, 1996.

C. Leon-morales, M. Strathmann, and H. Flemming, Role of biofilms on sediment transport -investigations with artificial sediment columns Sediment dynamics and pollutant mobility in rivers, pp.358-386, 2007.

S. Gerbersdorf, W. Manz, and D. Paterson, The engineering potential of natural benthic bacterial assemblages in terms of the erosion resistance of sediments, FEMS Microbiology Ecology, vol.66, issue.2, pp.282-294, 2008.
DOI : 10.1111/j.1574-6941.2008.00586.x

S. Gerbersdorf, R. Bittner, H. Lubarsky, W. Manz, and D. Paterson, Microbial assemblages as ecosystem engineers of sediment stability, Journal of Soils and Sediments, vol.814, issue.40, pp.640-652, 2009.
DOI : 10.1007/s11368-009-0142-5

J. Klug, Bacterial response to dissolved organic matter affects resource availability for algae, Canadian Journal of Fisheries and Aquatic Sciences, vol.62, issue.2, pp.472-481, 2005.
DOI : 10.1139/f04-229

H. Schaefer, B. Abbas, H. Witte, and G. Muyzer, Genetic diversity of ?satellite? bacteria present in cultures of marine diatoms, FEMS Microbiology Ecology, vol.42, issue.1, pp.25-35, 2002.
DOI : 10.1016/S0168-6496(02)00298-2

H. Grossart and M. Simon, Interactions of planktonic algae and bacteria: effects on algal growth and organic matter dynamics, Aquatic Microbial Ecology, vol.47, pp.163-176, 2007.
DOI : 10.3354/ame047163

F. Ribalet, L. Intertaglia, P. Lebaron, and R. Casotti, Differential effect of three polyunsaturated aldehydes on marine bacterial isolates, Aquatic Toxicology, vol.86, issue.2, pp.249-255, 2008.
DOI : 10.1016/j.aquatox.2007.11.005

T. Wichard, S. Poulet, and G. Pohnert, Determination and quantification of ??,??,??,??-unsaturated aldehydes as pentafluorobenzyl-oxime derivates in diatom cultures and natural phytoplankton populations: application in marine field studies, Journal of Chromatography B, vol.814, issue.1, pp.155-161, 2005.
DOI : 10.1016/j.jchromb.2004.10.021

K. Fukami, T. Nishijima, and Y. Ishida, Stimulative and inhibitory effects of bacteria on the growth of microalgae, Hydrobiologia, vol.358, pp.185-191, 1997.
DOI : 10.1007/978-94-017-2097-7_29

R. Mu, Z. Fan, H. Pei, X. Yuan, and S. Liu, Isolation and algae-lysing characteristics of the algicidal bacterium B5, Journal of Environmental Sciences, vol.19, issue.11, pp.1336-1340, 2007.
DOI : 10.1016/S1001-0742(07)60218-6

M. Boivin, G. Greve, J. Garcia-meza, B. Massieux, and W. Sprenger, Algal???bacterial interactions in metal contaminated floodplain sediments, Environmental Pollution, vol.145, issue.3, pp.884-894, 2007.
DOI : 10.1016/j.envpol.2006.05.003

M. Lundkvist, M. Grue, P. Friend, and M. Flindt, The relative contributions of physical and microbiological factors to cohesive sediment stability, Continental Shelf Research, vol.27, issue.8, pp.1143-1152, 2007.
DOI : 10.1016/j.csr.2006.01.021

M. Yallop, D. Paterson, and P. Wellsbury, Interrelationships between Rates of Microbial Production, Exopolymer Production, Microbial Biomass, and Sediment Stability in Biofilms of Intertidal Sediments, Microbial Ecology, vol.39, issue.2, pp.116-127, 2000.
DOI : 10.1007/s002489900186

A. Campa-cordova, A. Luna-gonzalez, F. Ascencio, E. Cortes-jacinto, and C. Caceres-martinez, Effects of chloramphenicol, erythromycin, and furazolidone on growth of Isochrysis galbana and Chaetoceros gracilis, Aquaculture, vol.260, issue.1-4, pp.145-150, 2006.
DOI : 10.1016/j.aquaculture.2006.06.014

H. Lai, J. Hou, C. Su, and C. Chen, Effects of chloramphenicol, florfenicol, and thiamphenicol on growth of algae Chlorella pyrenoidosa, Isochrysis galbana, and Tetraselmis chui, Ecotoxicology and Environmental Safety, vol.72, issue.2, pp.329-334, 2009.
DOI : 10.1016/j.ecoenv.2008.03.005

F. Guerrini, A. Mazzotti, L. Boni, and R. Pistocchi, Bacterial-algal interactions in polysaccharide production, Aquatic Microbial Ecology, vol.15, pp.247-253, 1998.
DOI : 10.3354/ame015247

J. Levy, J. Stauber, S. Wakelin, and D. Jolley, The effect of bacteria on the sensitivity of microalgae to copper in laboratory bioassays, Chemosphere, vol.74, issue.9, pp.1266-1274, 2009.
DOI : 10.1016/j.chemosphere.2008.10.049

H. Elifantz, R. Malmstrom, M. Cottrell, and D. Kirchman, Assimilation of Polysaccharides and Glucose by Major Bacterial Groups in the Delaware Estuary, Applied and Environmental Microbiology, vol.71, issue.12, pp.7799-7805, 2005.
DOI : 10.1128/AEM.71.12.7799-7805.2005

E. Defew, D. Paterson, and S. Hagerthey, The use of natural microphytobenthic assemblages as laboratory model systems, Marine Ecology Progress Series, vol.237, pp.15-25, 2002.
DOI : 10.3354/meps237015

J. Bowen, B. Crump, L. Deegan, and J. Hobbie, Increased supply of ambient nitrogen has minimal effect on salt marsh bacterial production, Limnology and Oceanography, vol.54, issue.3, pp.713-722, 2009.
DOI : 10.4319/lo.2009.54.3.0713

H. Flemming and J. Wingender, Was Biofilme zusammenh??lt: Proteine, Polysaccharide .., Chemie in unserer Zeit, vol.36, issue.1, pp.30-42, 2002.
DOI : 10.1002/1521-3781(200202)36:1<30::AID-CIUZ30>3.0.CO;2-O

L. Edgar and J. Pickett-heaps, The Mechanism of Diatom Locomotion. I. An Ultrastructural Study of the Motility Apparatus, Proceedings of the Royal Society B: Biological Sciences, vol.218, issue.1212, pp.331-343, 1983.
DOI : 10.1098/rspb.1983.0042

H. Fang, K. Chan, and L. Xu, Quantification of bacterial adhesion forces using atomic force microscopy (AFM), Journal of Microbiological Methods, vol.40, issue.1, pp.89-97, 2000.
DOI : 10.1016/S0167-7012(99)00137-2

K. Czaczyk and K. Myszka, Biosynthesis of extracellular polymeric substances (EPS) and its role in microbial biofilm formation, Polish Journal of Environmental Studies, vol.16, pp.799-806, 2007.

R. Long and F. Azam, Abundant protein-containing particles in the sea, Aquatic Microbial Ecology, vol.10, pp.213-221, 1996.
DOI : 10.3354/ame010213

E. Pennisi, MATERIALS SCIENCE: Biology Reveals New Ways to Hold on Tight, Science, vol.296, issue.5566, pp.250-251, 2002.
DOI : 10.1126/science.296.5566.250

R. Wotton, The utiquity and many roles of exopolymers (EPS) in aquatic systems, Scientia Marina, vol.68, issue.S1, pp.13-21, 2004.
DOI : 10.3989/scimar.2004.68s113

J. Fuhrman and F. Azam, Thymidine incorporation as a measure of heterotrophic bacterioplankton production in marine surface waters: Evaluation and field results, Marine Biology, vol.33, issue.2, pp.109-120, 1982.
DOI : 10.1007/BF00397184

M. Garet and D. Moriarty, Acid extraction of tritium label from bacterial DNA in clay sediment, Journal of Microbiological Methods, vol.25, issue.1, pp.1-4, 1996.
DOI : 10.1016/0167-7012(95)00071-2

B. Cho and F. Azam, Biogeochemical significance of bacterial biomass in the ocean's euphotic zone, Marine Ecology Progress Series, vol.63, pp.253-259, 1990.
DOI : 10.3354/meps063253

S. Lee and J. Fuhrman, Relationships between biovolume and biomass of naturally derived marine bacterioplankton, Applied and Environmental Microbiology, vol.53, pp.1298-1303, 1987.

C. Hubas, D. Lamy, L. Artigas, and D. Davoult, Seasonal variability of intertidal bacterial metabolism and growth efficiency in an exposed sandy beach during low tide, Marine Biology, vol.10, issue.1, pp.41-52, 2007.
DOI : 10.1007/s00227-006-0446-6

URL : https://hal.archives-ouvertes.fr/hal-00481734

C. Hubas, L. Artigas, and D. Davoult, Role of the bacterial community in the annual benthic metabolism of two contrasted temperate intertidal sites (Roscoff Aber Bay, France), Marine Ecology Progress Series, vol.344, pp.39-48, 2007.
DOI : 10.3354/meps06947

W. Manz, [5] In Situ analysis of microbial biofilms by rRNA-targeted oligonucleotide probing, Methods in Enzymology, vol.310, pp.79-91, 1999.
DOI : 10.1016/S0076-6879(99)10007-7

C. Roller, M. Wagner, R. Amann, W. Ludwig, and K. Schleifer, In situ probing of Gram-positive bacteria with high DNA G + C content using 23S rRNA-targeted oligonucleotides, Microbiology, vol.140, issue.10, pp.2849-2858, 1994.
DOI : 10.1099/00221287-140-10-2849

W. Manz, R. Amann, W. Ludwig, M. Wagner, and K. Schleifer, Phylogenetic Oligodeoxynucleotide Probes for the Major Subclasses of Proteobacteria: Problems and Solutions, Systematic and Applied Microbiology, vol.15, issue.4, pp.593-600, 1992.
DOI : 10.1016/S0723-2020(11)80121-9

S. Jeffrey, S. Wright, and M. Zapata, Recent advances in HPLC pigment analysis of phytoplankton, Marine and Freshwater Research, vol.50, issue.8, pp.879-896, 1999.
DOI : 10.1071/MF99109

H. Lange-bertalot, A first ecological evaluation of the diatom flora in Central Europe. Lauterbornia, pp.117-123, 1997.

K. Krammer and H. Lange-bertalot, Sueßwasserflora von Mitteleuropa, 1986.

H. Pankow, Ostsee-Algenflora, 1990.

R. Simonsen, Untersuchungen zur Systematik und O ¨ kologie der Bodendiatomeen der westlichen Ostsee, Hydrobiologia, vol.1, pp.1-44, 1962.

G. Underwood, J. Phillips, and K. Saunders, Distribution of estuarine benthic diatom species along salinity and nutrient gradients, European Journal of Phycology, vol.33, issue.2, pp.173-183, 1998.
DOI : 10.1080/09670269810001736673

A. Witkowski, H. Lange-bertalot, and D. Metzeltin, Diatom flora of marine coasts, 2000.

M. Dubois, K. Gilles, J. Hemilton, P. Rebers, and F. Smith, Colorimetric Method for Determination of Sugars and Related Substances, Analytical Chemistry, vol.28, issue.3, pp.380-356, 1956.
DOI : 10.1021/ac60111a017

K. Raunkjaer, T. Hvitvedjacobsen, and P. Nielsen, Measurement of pools of protein, carbohydrate and lipid in domestic wastewater, Water Research, vol.28, issue.2, pp.251-262, 1994.
DOI : 10.1016/0043-1354(94)90261-5

S. Gerbersdorf, W. Manz, and D. Paterson, The engineering potential of natural benthic bacterial assemblages in terms of the erosion resistance of sediments, FEMS Microbiology Ecology, vol.66, issue.2, pp.282-294, 2008.
DOI : 10.1111/j.1574-6941.2008.00586.x

D. Paterson, Short-term changes in the erodibility of intertidal cohesive sediments related to the migratory behavior of epipelic diatoms, Limnology and Oceanography, vol.34, issue.1, pp.223-234, 1989.
DOI : 10.4319/lo.1989.34.1.0223

S. Vardy, J. Saunders, T. Tolhurst, P. Davies, and D. Paterson, Calibration of the high-pressure cohesive strength meter (CSM), Continental Shelf Research, vol.27, issue.8, pp.1190-1199, 2007.
DOI : 10.1016/j.csr.2006.01.022

T. Tolhurst, K. Black, and S. Shayler, Measuring the in situ Erosion Shear Stress of Intertidal Sediments with the Cohesive Strength Meter (CSM), Estuarine, Coastal and Shelf Science, vol.49, issue.2, pp.281-294, 1999.
DOI : 10.1006/ecss.1999.0512

F. Larson, H. Lubarsky, S. Gerbersdorf, and D. Paterson, Surface adhesion measurements in aquatic biofilms using magnetic particle induction: MagPI, Limnology and Oceanography: Methods, vol.7, issue.7, pp.490-497, 2009.
DOI : 10.4319/lom.2009.7.490