J. Bendtsen, K. E. Gustafsson, and J. K. Petersen, Modelling vertical mixing in the surface boundary layer using artificial age tracers, Journal of Marine Systems, vol.60, issue.1-2, pp.115-128, 2006.
DOI : 10.1016/j.jmarsys.2005.11.009

A. Bérard, C. Leboulanger, and T. Pelte, Tolerance of Oscillatoria limnetica Lemmermann to Atrazine in Natural Phytoplankton Populations and in Pure Culture: Influence of Season and Temperature, Archives of Environmental Contamination and Toxicology, vol.37, issue.4, pp.472-479, 1999.
DOI : 10.1007/s002449900541

L. Bernard, H. Schäfer, F. Joux, C. Courties, G. Muyzer et al., Genetic diversity of total, active and culturable marine bacteria in coastal seawater, Aquatic Microbial Ecology, vol.23, 2000.
DOI : 10.3354/ame023001

T. Burgeot, B. Gagnaire, T. Renault, J. Haure, D. Moraga et al., Summer mortality of Pacific oyster Crassostrea gigas. The Morest Project, pp.107-151, 2007.

J. C. Chesworth, M. E. Donkin, and M. T. Brown, Aquat, The interactive effects of the antifouling herbicides Irgarol 1051 and Diuron on the seagrass Zostera marina, 2004.

A. Cid, C. Herrero, E. Torres, and J. Abalde, Copper toxicity on the marine microalgae Phaeodactylum tricornutum: effects on photosynthesis and related parameters, 1995.

A. Cid, P. Fidalgo, C. Herrero, and J. Abalde, Toxic action of copper on the membrane system of a marine diatom measured by flow cytometry, Cytometry, vol.51, issue.1, pp.32-36, 1996.
DOI : 10.1002/(SICI)1097-0320(19960901)25:1<32::AID-CYTO4>3.0.CO;2-G

K. R. Clarke, Non-parametric multivariate analyses of changes in community structure, Austral Ecology, vol.28, issue.1, pp.117-143, 1993.
DOI : 10.1007/BF00265008

D. De-la-broise and B. Palenik, Immersed in situ microcosms: A tool for the assessment of pollution impact on phytoplankton, Journal of Experimental Marine Biology and Ecology, vol.341, issue.2, pp.274-281, 2007.
DOI : 10.1016/j.jembe.2006.10.045
URL : https://hal.archives-ouvertes.fr/hal-00675554

M. E. Delorenzo, J. Lauth, P. L. Pennington, G. I. Scott, and P. E. Ross, Atrazine effects on the microbial food web in tidal creek mesocosms, Aquatic Toxicology, vol.46, issue.3-4, pp.241-251, 1999.
DOI : 10.1016/S0166-445X(98)00132-5

M. E. Delorenzo, G. I. Scott, and P. E. Ross, Effects of the agricultural pesticides atrazine, deethylatrazine, endosulfan, and chlorpyrifos on an estuarine microbial food web, Environmental Toxicology and Chemistry, vol.38, issue.12, pp.2824-2835, 1999.
DOI : 10.1002/etc.5620181224

M. E. Delorenzo, G. I. Scott, and P. E. Ross, Toxicity of pesticides to aquatic microorganisms: A review, Environmental Toxicology and Chemistry, vol.28, issue.189, pp.84-98, 2001.
DOI : 10.1002/etc.5620200108

B. Diez, C. Pedros-alio, T. L. Marsh, and R. Massana, Application of Denaturing Gradient Gel Electrophoresis (DGGE) To Study the Diversity of Marine Picoeukaryotic Assemblages and Comparison of DGGE with Other Molecular Techniques, Applied and Environmental Microbiology, vol.67, issue.7, pp.2942-2951, 2001.
DOI : 10.1128/AEM.67.7.2942-2951.2001

O. M. Lage, F. Sansonetty, J. E. O-'connor, and A. M. Parente, Flow cytometric analysis of chronic and acute toxicity of copper(II) on the marine dinoflagellateAmphidinium carterae, Cytometry, vol.28, issue.3, pp.226-235, 2001.
DOI : 10.1002/1097-0320(20010701)44:3<226::AID-CYTO1115>3.0.CO;2-9

C. Leboulanger, F. Rimet, M. Hème-de-lacotte, and A. Bérard, Effects of atrazine and nicosulfuron on freshwater microalgae, Environment International, vol.26, issue.3, pp.131-135, 2001.
DOI : 10.1016/S0160-4120(00)00100-8

S. J. Lehotay, J. A. Harman-fetcho, and L. L. Mcconnell, Agricultural pesticide residues in oysters and water from two chesapeake bay tributaries, Marine Pollution Bulletin, vol.37, issue.1-2, pp.32-44, 1998.
DOI : 10.1016/S0025-326X(98)00129-5

H. Li, T. Xiao, T. Ding, and R. Lu, Effect of the Yellow Sea Cold Water Mass (YSCWM) on distribution of bacterioplankton, Acta Ecologica Sinica, vol.26, issue.4, pp.1012-1019, 2006.
DOI : 10.1016/S1872-2032(06)60020-6

J. W. Lund, C. Kipling, and E. D. Le-cren, The inverted microscope method of estimating algal numbers and the statistical basis of estimations by counting, Hydrobiologia, vol.9, issue.2, pp.143-170, 1958.
DOI : 10.1007/BF02870144

D. Marie, C. Brussaard, F. Partensky, and D. Vaulot, Flow cytometric analysis of phytoplankton, bacteria and viruses In: Current Protocols in Cytometry, 1999.

D. Marie, F. Zhu, V. Balagué, J. Ras, D. Vaulot et al., Eukaryotic picoplankton communities of the Mediterranean Sea in summer assessed by molecular approaches (DGGE, TTGE, QPCR), FEMS Microbiology Ecology, vol.55, issue.3, pp.403-415, 2006.
DOI : 10.1111/j.1574-6941.2005.00058.x

R. Massana and K. Jürgens, Composition and population dynamics of planktonic bacteria and bacterivorous flagellates in seawater chemostat cultures, Aquatic Microbial Ecology, vol.32, pp.11-22, 2003.
DOI : 10.3354/ame032011

A. E. Murray, J. T. Hollibaugh, and C. Orrego, Phylogenetic compositions of bacterioplankton from two California estuaries compared by denaturing gradient gel electrophoresis of 16S rDNA fragments, Appl. Environ. Microbiol, vol.62, pp.2676-2680, 1996.

G. Muyzer, E. C. De-waal, and A. G. Uitterlinden, Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA, Appl. Environ. Microbiol, vol.59, pp.695-700, 1993.

J. E. Nilsen and E. Falck, Variations of mixed layer properties in the Norwegian Sea for the period 1948???1999, Progress in Oceanography, vol.70, issue.1, pp.58-90, 2006.
DOI : 10.1016/j.pocean.2006.03.014

R. J. Olson, S. W. Chisholm, E. R. Zettler, and E. V. Armbrust, Analysis of Synechococcus pigment types in the sea using single and dual beam flow cytometry, Deep Sea Research Part A. Oceanographic Research Papers, vol.35, issue.3, pp.425-440, 1988.
DOI : 10.1016/0198-0149(88)90019-2

D. R. Oros, W. M. Jarman, T. Lowe, N. David, S. Lowe et al., Surveillance for previously unmonitored organic contaminants in the San Francisco Estuary, Marine Pollution Bulletin, vol.46, issue.9, pp.1102-1110, 2003.
DOI : 10.1016/S0025-326X(03)00248-0

F. Partensky, J. Blanchot, F. Lantoine, J. Neveux, and D. Marie, Vertical structure of picophytoplankton at different trophic sites of the tropical northeastern Atlantic Ocean, Deep Sea Research Part I: Oceanographic Research Papers, vol.43, issue.8, pp.1191-1213, 1996.
DOI : 10.1016/0967-0637(96)00056-8

S. Pesce, C. Fajon, C. Bardot, F. Bonnemoy, C. Portelli et al., Effects of the phenylurea herbicide diuron on natural riverine microbial communities in an experimental study, Aquatic Toxicology, vol.78, issue.4, pp.303-314, 2006.
DOI : 10.1016/j.aquatox.2006.03.006
URL : https://hal.archives-ouvertes.fr/hal-00528297

S. Pesce, C. Fajon, C. Bardot, F. Bonnemoy, C. Portelli et al., Longitudinal changes in microbial planktonic communities of a French river in relation to pesticide and nutrient inputs, Aquatic Toxicology, vol.86, issue.3, pp.352-360, 2008.
DOI : 10.1016/j.aquatox.2007.11.016
URL : https://hal.archives-ouvertes.fr/hal-00528323

D. G. Petersen, I. Dahllof, and L. P. Nielsen, EFFECTS OF ZINC PYRITHIONE AND COPPER PYRITHIONE ON MICROBIAL COMMUNITY FUNCTION AND STRUCTURE IN SEDIMENTS, Environmental Toxicology and Chemistry, vol.23, issue.4, pp.921-928, 2004.
DOI : 10.1897/03-196

C. Rioboo, O. Gonzalez, C. Herrero, and A. Cid, Physiological response of freshwater microalga (Chlorella vulgaris) to triazine and phenylurea herbicides, Aquatic Toxicology, vol.59, issue.3-4, pp.225-235, 2002.
DOI : 10.1016/S0166-445X(01)00255-7

F. Rubio, L. J. Veldhuis, B. S. Clegg, J. R. Fleeker, and J. C. Hall, Comparison of a Direct ELISA and an HPLC Method for Glyphosate Determinations in Water, Journal of Agricultural and Food Chemistry, vol.51, issue.3, pp.691-696, 2003.
DOI : 10.1021/jf020761g

T. P. Rutten, B. Sandee, and A. R. Hofman, Phytoplankton monitoring by high performance flow cytometry: A successful approach?, Cytometry Part A, vol.37, issue.9, pp.16-26, 2005.
DOI : 10.1002/cyto.a.20106

C. Sabater and J. M. Carrasco, Effects of pyridaphenthion on growth of five freshwater species of phytoplankton. A laboratory study, Chemosphere, vol.44, issue.8, pp.1775-1781, 2001.
DOI : 10.1016/S0045-6535(00)00575-0

C. Sabater, A. Cuesta, and R. Carrasco, Effects of bensulfuron-methyl and cinosulfuron on growth of four freshwater species of phytoplankton, Chemosphere, vol.46, issue.7, pp.953-960, 2002.
DOI : 10.1016/S0045-6535(01)00179-5

H. Schäfer, L. Bernard, C. Courties, P. Lebaron, P. Servais et al., Microbial community dynamics in Mediterranean nutrient-enriched seawater mesocosms: changes in the genetic diversity of bacterial populations, FEMS Microbiology Ecology, vol.34, issue.3, pp.243-253, 2001.
DOI : 10.1016/S0168-6496(00)00102-1

F. Seguin, C. Leboulanger, F. Rimet, J. C. Druart, and A. Bérard, Effects of atrazine and nicosulfuron on phytoplankton in systems of increasing complexity, Arch. Environ, 2001.

C. Skark, N. Zullei-seibert, U. Schottler, and C. Schlett, The Occurrence of Glyphosate in Surface Water, International Journal of Environmental Analytical Chemistry, vol.104, issue.1-4, pp.93-104, 1998.
DOI : 10.1016/0022-1694(94)90141-4

R. R. Sokal and F. J. Rohlf, Biometry: the principles and practice of statistics in biological research, 1995.

J. Stauber and M. Adams, Microalgal Toxicity Tests Using Flow Cytometry, Small-Scale Freshwater Toxicity Investigations, vol.1, pp.203-241, 2005.
DOI : 10.1007/1-4020-3120-3_6

R. J. Steen, J. Van-der-vart, M. Hiep, B. Van-hattum, W. P. Cofino et al., Gross fluxes and estuarine behaviour of pesticides in the Scheldt Estuary (1995???1997), Environmental Pollution, vol.115, issue.1, pp.65-79, 1995.
DOI : 10.1016/S0269-7491(01)00085-9

M. T. Tsui and L. M. Chu, Aquatic toxicity of glyphosate-based formulations: comparison between different organisms and the effects of environmental factors, Chemosphere, vol.52, issue.7, 2003.
DOI : 10.1016/S0045-6535(03)00306-0

Z. Uysal and I. Koksalan, The annual cycle of Synechococcus (cyanobacteria) in the northern Levantine Basin shelf waters (Eastern Mediterranean), Marine Ecology, vol.230, issue.7, pp.187-197, 2006.
DOI : 10.1016/S0924-7963(97)00022-5

P. J. Van-den-brink, E. M. Hartgers, R. Gylstra, F. Bransen, and T. C. Brock, Effects of a Mixture of Two Insecticides in Freshwater Microcosms: II. Responses of Plankton and Ecological Risk Assessment, Ecotoxicology, vol.11, issue.3, pp.181-197, 2002.
DOI : 10.1023/A:1015422815401

E. J. Van-hannen, M. P. Van-agterveld, H. J. Gons, and H. J. Laanbroek, REVEALING GENETIC DIVERSITY OF EUKARYOTIC MICROORGANISMS IN AQUATIC ENVIRONMENTS BY DENATURING GRADIENT GEL ELECTROPHORESIS, Journal of Phycology, vol.34, issue.2, pp.206-213, 1998.
DOI : 10.1046/j.1529-8817.1998.340206.x

D. M. Ward, R. Weller, and M. M. Bateson, 16S rRNA sequences reveal numerous uncultured microorganisms in a natural community, Nature, vol.345, issue.6270, pp.63-65, 1990.
DOI : 10.1038/345063a0

J. A. Weiner, M. E. Delorenzo, and M. H. Fulton, Relationship between uptake capacity and differential toxicity of the herbicide atrazine in selected microalgal species, Aquatic Toxicology, vol.68, issue.2, pp.121-128, 2004.
DOI : 10.1016/j.aquatox.2004.03.004

A. Widenfalk, S. Bertilsson, I. Sundh, and W. Goedkoop, Effects of pesticides on community composition and activity of sediment microbes ??? responses at various levels of microbial community organization, Environmental Pollution, vol.152, issue.3, pp.576-584, 2008.
DOI : 10.1016/j.envpol.2007.07.003

A. Woodburn, Glyphosate: production, pricing and use worldwide, Pest Management Science, vol.56, issue.4, pp.309-312, 2000.
DOI : 10.1002/(SICI)1526-4998(200004)56:4<309::AID-PS143>3.0.CO;2-C

M. Yasuno, A. Asaka, and Y. Kono, Effects of pyraclofos (an organophosphorous insecticide) on nutrient enriched ecosystems, Chemosphere, vol.27, issue.9, pp.1813-1824, 1993.
DOI : 10.1016/0045-6535(93)90159-3

K. Yoshino, K. Nishigaki, and Y. Husimi, Temperature sweep gel electrophoresis: a simple method to detect point mutations, Nucleic Acids Research, vol.19, issue.11, p.3153, 1991.
DOI : 10.1093/nar/19.11.3153

Y. Yu, F. Kong, M. Wang, L. Qian, and X. Shi, Determination of short-term copper toxicity in a multispecies microalgal population using flow cytometry, Ecotoxicology and Environmental Safety, vol.66, issue.1, pp.49-56, 2007.
DOI : 10.1016/j.ecoenv.2005.10.014

M. Zapata, F. Rodríguez, and J. L. Garrido, Separation of chlorophylls and carotenoids from marine phytoplankton:a new HPLC method using a reversed phase C8 column and pyridine-containing mobile phases, Marine Ecology Progress Series, vol.195, pp.29-45, 2000.
DOI : 10.3354/meps195029