Urania Christaki; Clement Georges; Savvas Genitsaris; Sebastien Monchy
FEMS Microbiology Ecology 2015Microzooplankton community associated with phytoplankton blooms in the naturally iron-fertilized Kerguelen area (Southern Ocean) doi: 10.1093/femsec/fiv068


Landa M, Blain S, Christaki U, Monchy S. Obernosterer I (2015) Shifts in bacterial community composition associated to increased carbon cycling in a mosaic of phytoplankton blooms in the Southern Ocean ISME Journal 1-12


Genitsaris S, Monchy S, Viscogliosi E, Sime-Ngando T, Ferreira S, Christaki U. (2015) Seasonal variations of marine protist community structure based on taxon-specific traits using the eastern English Channel as a model coastal system. FEMS Microbiology Ecology, (91) doi: 10.1093/femsec/fiv034


S. H. M. Jacquet, F. Dehairs, D. Lefèvre, A. J. Cavagna, F. Planchon, U. Christaki, L. Monin, L. André, I. Closset, and D. Cardinal (2015) Early spring mesopelagic carbon remineralization and transfer efficiency in the naturally iron-fertilized Kerguelen area. Biogeosciences, 12, 1713-1731, 2015


Duret M, Pachiadaki M, Stewart F, Sarode N, Christaki, U, Monchy S, Edgcomb V (2015) Size-fractionated diversity of eukaryotic microbial communities in the Eastern Tropical North Pacific oxygen minimum zone. FEMS Microbiology Ecology. (91) doi: 10.1093/femsec/fiv037


Kormas KA, Karayanni H, Christaki U, Giannakourou A, Assimakopoulou G, Gotsis-Skretas O (2014) Microbial food web structure and its impact on primary production in a meso-oligotrophic coastal area (Pagasitikos Gulf, Aegean Sea). Turk. J. Fish. Aquat. Sci. 1 4: 527-537 DOI: 10.4194/1303-2712-v14_2_24


Bonato S, Christaki U, Lefebvre A, Lizon F, Thyssesn M, Artigas LF. (2015) High spatial variability of phytoplankton assessed by flow cytometry, in a dynamic productive coastal area, in spring: The eastern English Channel. Estuarine and Coastal Shelf Science 154: 214-223


Christaki U, Lefèvre D, Georges C, Colombet J , Catala P, Courties C, Sime-Ngando T, Blain S, Ingrid Obernosterer I. (2014) Microbial food web dynamics during spring phytoplankton blooms in the naturally iron-fertilized Kerguelen area (Southern Ocean). Biogeosciences, 11, 6739–6753, 2014 doi:11.6739/bg-11-1-2014


Malits, A., Christaki, U., Obernosterer, I., and Weinbauer, M. G.: Enhanced viral production and virus-mediated mortality of bacterioplankton in a natural iron-fertilized bloom event above the Kerguelen Plateau, Biogeosciences, 11, 6841-6853, doi:10.5194/bg-11-6841-2014, 2014.


C. Georges, S. Monchy, S. Genitsaris, and U. Christaki. Protist community composition during early phytoplankton blooms in the naturally iron-fertilized Kerguelen area (Southern Ocean) (2014) Biogeosciences, 11, 5847-5863.


Genitsaris S, Kormas K; Ar, Christaki U, Monchy S, Moustaka-Gouni M. (2014). Molecular diversity reveals previously undetected air-dispersed protist colonists in a Mediterranean area Science of the Total Environment 478 (2014) 70–79 Christaki U, Kormas KA, Genitsaris S, Georges C, Sime-Ngando T, Viscogliosi E, Monchy S (2014)


Christaki U, Kormas KA, Genitsaris S, Georges C, Sime-Ngando T, Viscogliosi E, Monchy S (2014) Winter-summer succession of unicellular eukaryotes in a meso-eutrophic coastal system. Microb. Ecol. 67:13–23, DOI: 10.1007/s00248-013-0290

 


Monchy S., Grattepanche J-D,  Breton E., Dionigia M.,  Sanciu G.,  Chabé M., Delhaes L., Viscogliosi E., Sime-Ngando T., and Christaki U.. 2012. Micro planktonic Community Structure in a Coastal System Relative to a Phaeocystis Bloom Inferred from Morphological and Tag Pyrosequencing Methods. PLoS ONE 7(6): e39924. doi:10.1371/journal.pone.0039924 pdf


Lagaria A. S. Psarra; A. Gogou; S. Tugrul; U. Christaki .2013. Particulate and  dissolved primary production along a pronounced hydrographic and  trophic gradient (Turkish Straits System?NE Aegean Sea), Journal of Marine Systems 119-120:1-10, pdf
Sauret C, Christaki U, Moutsaki P, Hatzianestis I, Gogou A, Ghiglione JF, 2012 Influence of pollution history on the response of coastal bacterial and nanoeukaryote communities to crude oil and biostimulation assays. Marine Environmental Research, 79:70-8.pdf

Niquil N, Kagami M, Urabe J, Christaki U, Viscogliosi E, Sime-Ngando T. 2011 Potential role of fungi in the plankton food-web functioning and stability: a simulation analysis based on lake Biwa inverse model. Hydrobiologia, 659: 65-79. I 10.1007/s10750-010-0308-6 pdf


Monchy S,  Jobard M, Sanciu G, Rasconi S, Gerphagnon M, Chabé M , Cian A, Meloni D, Niquil N, Christaki U,  Viscogliosi E,  Sime-Ngando T. 2011. Exploring and quantifying fungal diversity in freshwater lake ecosystems using rDNA cloning/sequencing and SSU tag pyrosequencing Environmental Microbiology (2011) doi:10.1111/j.1462-2920.2011.02444. pdf


Grattepanche, J.-D., Breton, E., Brylinski, J.-M., Lecuyer, E., Chistaki, U. (2011). Succession of primary producers and micrograzers in a coastal ecosystem dominated by Phaeocystis globosa blooms. Journal of Plankton Research, 33, 37-50. pdf


Tanaka, T., Thingstad, T. F., Christaki, U., Colombet, J., Cornet-Barthaux, V., Courties, C., Grattepanche, J.-D., Lagaria, A., Nedoma, J., Oriol, L.,         Psarra, S., Pujo-Pay, M., Van Wambeke, F., Moutin, T., (2011). N-limited or N and P co-limited indications in the surface waters of three Mediterranean basins. Biogeosciences, 8, 525-538.

  

 J-D Grattepanche, D. Vincent, E. Breton and U. Christaki.(2011) Phytoplankton growth and Microzooplankton grazing during a spring bloom in the             eastern English Channel Marine Journal of Experimental Marine Biology and Ecology, 404:87-97. pdf


U Christaki, C Courties, R. Massana, P. Catala, P. Lebaron, P. Gasol, MV Zubkov. (2011). Optimized routine flow cytometric enumeration of heterotrophic flagellates using SYBR Green I. Limnology and Oceanography Methods, 9, 2011, 329–339 pdf


I. Salter, D. Böttjer, U. Christaki. (2011) The effect of inorganic particle concentration on bacteria-virus-nanoflagellate dynamics. Environmental Microbiology, doi:10.1111/j.1462-2920.2011.02547.x pdf


Lagaria A., Psarra S., Lefèvre D., Van Wambeke F., Courties C., Pujo-Pay M., Oriol L., Tanaka T., Moutin Y. Christaki U. 2010. Particulate and dissolved primary production and metabolic shifts upon nutrient additions in microcosm experiments related to trophic conditions in three Mediterranean basins, Biogeosciences, 8, 1–13, 2011, doi:10.5194/bg-8-1-2011


Christaki U, Van Wambeke F,  Lefevre D, Lagaria A,  Prieur L, Pujo-Pay M, Grattepanche JD, Colombet J, Psarra S,  Dolan J, Sime-Ngando T, Weinbauer M,  Moutin T. (2011) Impact of anticyclonic mesoscale features on the Mediterranean Sea’s microbial food web. Biogeosciences, 8, 1–14, 2011, doi:10.5194/bg-8-1-2011pdf 


Siokou-Frangou I, Christaki U, Mazzocchi MG, Montresor M, Ribera d’Alcalá M, Vaqué D, Zingone A. (2010) Plankton in the open Mediterranean Sea. A review. Biogeosciences, 7, 1–44, 2010.

Christaki U, Courties C, Joux F, Jeffrey WH, Neveux J, Naudin JJ. 2009 Community structure and trophic role of ciliates and heterotrophic nanoflagellates in Rhone River diluted mesoscale structures (NW Mediterranean Sea). Aquatic Microbial Ecology,  57: 263–277, 2009, doi: 10.3354/ame01339http://www.int-res.com/articles/ame_oa/a057p263.pdf


Lamy D, Obernosterer I, Laghdass M, Artigas F,   Breton E,  GrattepancheJD ,   Lecuyer E,   Degros N  P. Lebaron P,   Christaki U. 2009. Temporal evolution of major bacterial groups and bulk bacterial heterotrophic activity during a Phaeocystis globosa in the eastern English Channel Aquatic Microbial Ecology  58: 95–107, 2009, doi: 10.3354/ame01359


Obernosterer I, Christaki U., Lefèvre D. and Van Wambeke F., P. Catala and P. Lebaron. 2008 Rapid bacterial mineralization of organic carbon produced during a phytoplankton bloom induced by natural iron fertilization in the Southern Ocean. Deep Sea Research  II doi:10.1016/j.dsr2.2007.12.018, 55:777-789

Sarthou, G. D. Vincent, Christaki, U., I. Obernosterer, K. Timmermans, C. Brussaard C.P.D. 2008 The fate of biogenic iron during phytoplankton bloom induced by natural: impact of copepod grazing . Deep Sea Research II doi:10.1016/j.dsr2.2007.12.020, 55:734-751

Jacquet, S., D. Cardinal, N. Savoye, I. Obernosterer, U. Christaki, C. Monnin, F. Dehairs, 2008. Mesopelagic organic carbon mineralisation in the Kerguelen Plateau region tracked by biogenic particulate Ba. Deep Sea Research doi:10.1016/j.dsr2.2007.12.038, 55:868-879 pdf

Karayanni H., Christaki U., Van Wambeke F., Thyssen M., Denis M.  2008. Heterotrophic nanoflagellate and ciliate bacterivorous activity and growth in oceanic waters: a seasonal study at mesoscale in NE Atlantic. Aquatic Microbial Ecology, doi:10.3354/ame01181 pdf

1995 - 2007

Christaki U., Van Wambeke F. 1995. Simulated phytoplankton bloom input in top-down manipulated microcosms: Comparative effect of zooflagellates, ciliates and copepods. Aquatic Microbial Ecology , 9:137-147

Christaki U., Van Wambeke F., Christou E.D., Conan, P., Gaudy, R. 1996. Food web structure variability in the surface layer, at a fixed station influenced by the North Western Mediterranean Current. Hydrobiologia, 321:145-153

Christaki U., Belviso S., Dolan J., Corn M. 1996. Assessment of the role of copepods and ciliates in the release to solution of particulate DMSP. Marine Ecology Progress Series, 141:119-127

Van Wambeke F., Christaki U., Gaudy R. Carbon fluxes from the microbial food web to mesozooplankton 1996. An approach in the surface layer of a pelagic area (NW Mediterranean Sea), Oceanologica Acta, 19: 57-66

Corn M., Belviso S., Partensky F., Simon N., Christaki U. 1996. Origin and importance of picoplanktonic DMSP. In: Biological and Environmental Chemistry of DMSP and Related Sulfonium Compounds, R.P. Kiene et al., eds. Plenum Press. p.191-201

Christaki U., Gaudy R., Kerambrun P. A 1998 Study of the Effects of Migratory Zooplankton on Microbial Populations in Surface Waters of the N. W. Mediterranean. Journal of experimental marine Biology and Ecology, 225:173-183

Christaki U., Dolan J.R., Pelegri S., Rassoulzadegan F. 1998. Consumption of Picoplankton-Size Particles by Marine Ciliates: Effects of Physiological State of the Ciliate and Particle Quality. Limnology and Oceanography, 43:458-464

Christaki U., Jaquet S., Dolan J.R., Vaulot D., Rassoulzadegan, F. 1999. Differential grazing and growth on Prochlorococcus and Synechococcus by two contrasting ciliates. Limnology and Oceanography 44:52-61

Christaki U., Van Wambeke F., Dolan J.R. 1999. Nanoflagellates (Mixotrophs, Heterotrophs & Autotrophs) in the Oligotrophic Eastern Mediterranean: Standing Stocks, Bactivory and Relationships with Bacterial Production. Marine Ecology Progress Series, 181: 297-307

Pelegri P.S., Christaki U., Dolan J.R, Rassoulzadegan F. 1999. Particulate and dissolved organic carbon production by the heterotrophic nanoflagellate Pteridomonas danica, Patterson and Fenchel 1985. Microbial Ecology, 37: 276-284

Turley C.M., BIanchi M., Christaki U., Conan P., Harris J.R., Psarra, S., Ruddy, G., Stutt E.D., Tselepides, A., Van Wambeke F. 2000. The relationship between primary producers and bacteria in an oligotrophic sea - the Mediterranean & biochemical implications. Marine Ecology Progress Series, 193:11- 18

Van Wambeke F., Christaki U., Bianchi, M., Psarra S., Tselepides T. 2000. Heterotrophic Bacterial production in the Cretan Sea. Progress in Oceanography, 46:205-216

Pitta P., Giannakourou A., Christaki U. 2001. Planktonic ciliates in the oligotrophic Mediterranean Sea: longitudinal trends of standing stocks, distributions and analysis of food vacuole contents. Aquatic Microbial Ecology, 24:297-31

Siokou-Frangou, I., Bianchi, M., Christaki, U., Christou, E., Giannakourou, A., Gotsis, O., Ignatiades, L., Pagou, K., Pitta, P., Psarra, S., Van Wambeke, F. 2001. Organic carbon partinioning and carbon flow in the plankton community of the Aegean Sea. Journal of Marine Systems, 33-34:325-353

Christaki U., Giannakourou A., Van Wambeke F., Gregori G. 2001. Nanoflagellate predation on auto- and heterotrophic picoplankton in the oligotrophic Mediterranean Sea. Journal of Plankton Research, 23:1297-1310 pdf

Van Wambeke F., Christaki U., Giannakourou A., Moutin T., Souvemerzoglou K. 2002. Longitudinal and vertical trends of bacterial limitation by and carbon in the Mediterranean Sea. Microbial Ecology, 43:113-133

Christaki U., Courties C., Karayanni H., Giannakourou A., Maravelias C., Kormas A.K., Lebaron P. 2002. Dynamic characteristics of Prochlorococcus and Synechococcus consumption by bacterivorous nanoflagellates. Microbial Ecology, 43:341-352

Maar M., Nielsen TG., Richardson K., Christaki U., Hansen OS., Zervoudaki T., Christou ED. 2002. Spatial and temporal variability of food web structure during the spring bloom in the Skagerrak. Marine Ecology Progress Series, 239:11-29

Simek K., Horňák K., Mašín M., Christaki U., Nedoma J., Weinbauer MG., Dolan JR., 2003 Effect of resource enrichment on grazed and ungrazed bacterioplankton communities of a meso-eutrophic reservoir. Aquatic Microbial Ecology, 31:123-135

Weinbauer MG., Christaki U., Nedoma J., Simek S. 2003 Grazing of protists on bacterioplankton stimulates viral production in resource and predator manipulation experiments. Aquatic Microbial Ecology, 31:137-144

Christaki U., Van Wambeke F., Bianchi M. 2003 Heterotrophic bacterial growth and substrate utilization in the oligotrophic Eastern Mediterranean (Aegean Sea). Mediterranean Marine Science, 4 : 23-39

Karayanni H., Christaki U., Van Wambeke F., Dalby A., 2004.  Evaluation of double formol – lugol fixation in assessing number and biomass of oligotrich heterotrophs, mixotrophs and tintinnids. An example of estimations at mesoscale in NE Atlantic. Journal of Microbiological Methods, 54:349-358.

Karayanni H, U Christaki,  F Van Wambeke, M Denis, T Moutin. 2005. Influence of ciliated protozoa and heterotrophic nanoflagellates on fate of primary production in NE Atlantic Ocean. Journal of Geophysical Research. 10: C07S15, doi:10.1029/2004JC002602.

Maixandeau A,  D Lefèvre, H Karayanni, U Christaki., F Van Wambeke, M Thyssen, M Denis, C Fernadez, J Uitz, K Leblanc, B Quéguiner. 2005. Respiration in relation to microbial food web structure in Northeastern Atlantic Ocean. Journal of Geophysical Research, 10: C07S17, doi:1029/2004JC002694.

Zervoudaki, S., Christou, E., Nielsen, T.G., Siokou-Frangou, I., Assimakopoulou, G., Giannakourou, A., Maar, M., Pagou, K., Krassakopoulou, E., Christaki, U., Moraitou-Apostolopoulou, M. 2007. The importance of small sized copepods in a frontal area of the Aegean Sea. Journal of Plankton Research. 29: 317-338; doi:10.1093/plankt/fbm018

Blain S., Quéguiner, B., Armand, L.K., Belviso, S., Bombled, B., Bopp, L., Bowie, A., Brunet, C., Brussaard, C., Carlotti, F., Christaki, U., Shreeve R.S., Corbière, A., Durand, I., Ebersbach, F. Fuda, J.L., Garcia, N., Gerringa, L., Griffiths, B., Guigue, C., Guillerm, C., Jacquet, S., Jeandel, C., Laan, P., Lefèvre, D., Lomonaco, C., Malits, A., Mosseri, J., Obernosterer, I., Park, H.Y., Picheral, M., Pondaven, P., Remenyi, T., Sandroni, V., Sarthou, G., Savoye, N., Scouarnec, L., SouhautM., Thuiller, D., Timmermans, K., Trull, T., Uitz, J., Van-Beek, P., Veldhuis, M., Vincent, D., Viollier, E., Vong, L., Wagener, T.,. 2007.Impact Of Natural Iron Fertilisation On Carbon Sequestration In The Southern Ocean. Nature, vol. 446, doi:10.1038/nature05700, 1070-1074 pdf