318 results on '"Conan, Pascal"'
Search Results
2. Bioplastic degradation and assimilation processes by a novel bacterium isolated from the marine plastisphere
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Barbe, Valérie, Jacquin, Justine, Bouzon, Madeleine, Wolinski, Adèle, Derippe, Gabrielle, Cheng, Jingguang, Cruaud, Corinne, Roche, David, Fouteau, Stéphanie, Petit, Jean-Louis, Conan, Pascal, Pujo-Pay, Mireille, Bruzaud, Stéphane, and Ghiglione, Jean-François
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- 2024
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3. Marine biodegradation of tailor-made polyhydroxyalkanoates (PHA) influenced by the chemical structure and associated bacterial communities
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Derippe, Gabrielle, Philip, Léna, Lemechko, Pierre, Eyheraguibel, Boris, Meistertzheim, Anne-Leïla, Pujo-Pay, Mireille, Conan, Pascal, Barbe, Valérie, Bruzaud, Stéphane, and Ghiglione, Jean-François
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- 2024
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4. Trajectories of nutrients concentrations and ratios in the French coastal ecosystems: 20 years of changes in relation with large-scale and local drivers
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Lheureux, Arnaud, David, Valérie, Del Amo, Yolanda, Soudant, Dominique, Auby, Isabelle, Bozec, Yann, Conan, Pascal, Ganthy, Florian, Grégori, Gérald, Lefebvre, Alain, Leynart, Aude, Rimmelin-Maury, Peggy, Souchu, Philippe, Vantrepote, Vincent, Blondel, Camille, Cariou, Thierry, Crispi, Olivier, Cordier, Marie-Ange, Crouvoisier, Muriel, Duquesne, Vincent, Ferreira, Sophie, Garcia, Nicole, Gouriou, Laure, Grosteffan, Emilie, Le Merrer, Yoann, Meteigner, Claire, Retho, Michael, Tournaire, Marie-Pierre, and Savoye, Nicolas
- Published
- 2023
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5. Evidence of coupled autotrophy and heterotrophy on plastic biofilms and its influence on surrounding seawater
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Conan, Pascal, Philip, Léna, Ortega-Retuerta, Eva, Odobel, Charlène, Duran, Clélia, Pandin, Caroline, Giraud, Carolane, Meistertzheim, Anne-Leila, Barbe, Valérie, Ter Hall, Alexandra, Pujo-Pay, Mireille, and Ghiglione, Jean-François
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- 2022
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6. Biodegradability under marine conditions of bio-based and petroleum-based polymers as substitutes of conventional microparticles
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Cheng, Jingguang, Eyheraguibel, Boris, Jacquin, Justine, Pujo-Pay, Mireille, Conan, Pascal, Barbe, Valérie, Hoypierres, Julia, Deligey, Gaëlle, Halle, Alexandra Ter, Bruzaud, Stéphane, Ghiglione, Jean-François, and Meistertzheim, Anne-Leila
- Published
- 2022
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7. Bi-decadal variability in physico-biogeochemical characteristics of temperate coastal ecosystems : from large-scale to local drivers
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Lheureux, Arnaud, Savoye, Nicolas, Del Amo, Yolanda, Goberville, Eric, Bozec, Yann, Breton, Elsa, Conan, Pascal, L’Helguen, Stéphane, Mousseau, Laure, Raimbault, Patrick, Rimelin-Maury, Peggy, Seuront, Laurent, Vuillemin, Renaud, Caparros, Jocelyne, Cariou, Thierry, Cordier, Marie-Ange, Corre, Anne-Marie, Costes, Laurence, Crispi, Olivier, Crouvoisier, Muriel, de Lary de Latour, Hortense, Derriennic, Hervé, Devesa, Jérémy, Durozier, Maïa, Ferreira, Sophie, Garcia, Nicole, Grossteffan, Emilie, Gueux, Aurore, Lafont, Michel, Lagadec, Véronique, Lecuyer, Eric, Leroux, Cédric, Macé, Eric, Maria, Eric, Mornet, Line, Nowaczyk, Antoine, Parra, Michel, Petit, Franck, and David, Valérie
- Published
- 2021
8. An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset.
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Metzl, Nicolas, Fin, Jonathan, Monaco, Claire Lo, Mignon, Claude, Alliouane, Samir, Bombled, Bruno, Boutin, Jacqueline, Bozec, Yann, Comeau, Steeve, Conan, Pascal, Coppola, Laurent, Cuet, Pascale, Ferreira, Eva, Gattuso, Jean-Pierre, Gazeau, Frédéric, Goyet, Catherine, Grossteffan, Emilie, Lansard, Bruno, Lefèvre, Dominique, and Lefèvre, Nathalie
- Subjects
OCEAN acidification ,POTENTIOMETRY ,COASTS ,DATABASES ,REFERENCE sources ,CARBON cycle - Abstract
Total alkalinity (A
T ) and dissolved inorganic carbon (CT ) in the oceans are important properties to understand the ocean carbon cycle and its link with global change (ocean carbon sinks and sources, ocean acidification) and ultimately find carbon based solutions or mitigation procedures (marine carbon removal). We present an extended database (SNAPO-CO2, Metzl et al, 2024d) with 24700 new additional data for the period 2002 to 2023. The full database now includes more than 67000 AT and CT observations along with basic ancillary data (time and space location, depth, temperature and salinity) in various oceanic regions obtained since 1993 mainly in the frame of French research projects. This includes both surface and water columns data acquired in open oceans, coastal zones, rivers and in the Mediterranean Sea and either from time-series or punctual cruises. Most AT and CT data in this synthesis were measured from discrete samples using the same closed-cell potentiometric titration calibrated with Certified Reference Material, with an overall accuracy of ± 4 µmol kg-1 for both AT and CT . The same technique was used onboard for underway measurements during cruises conducted in the Southern Indian and Southern Oceans. The AT and CT data from these cruises are also added in this synthesis. The data are provided in one dataset for the global ocean (https://doi.org/10.17882/102337) that offers a direct use for regional or global purposes, e.g. AT /Salinity relationships, long-term CT estimates, constraint and validation of diagnostics CT and AT reconstructed fields or ocean carbon and coupled climate/carbon models simulations, as well as data derived from Biogeochemical-Argo (BGC-Argo) floats. These data can also be used to calculate pH, fugacity of CO2 (f CO2 ) and other carbon system properties to derive ocean acidification rates or air-sea CO2 fluxes. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
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Sánchez-Pérez, Elvia D., Pujo-Pay, Mireille, Ortega-Retuerta, Eva, Conan, Pascal, Peters, Francesc, and Marrasé, Cèlia
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- 2020
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10. Submarine karstic springs as a source of nutrients and bioactive trace metals for the oligotrophic Northwest Mediterranean Sea
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Tamborski, Joseph, van Beek, Pieter, Conan, Pascal, Pujo-Pay, Mireille, Odobel, Charlene, Ghiglione, Jean-François, Seidel, Jean-Luc, Arfib, Bruno, Diego-Feliu, Marc, Garcia-Orellana, Jordi, Szafran, Armand, and Souhaut, Marc
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- 2020
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11. Relationship between bacterial compartment and particulate organic matter (POM) in coastal systems: An assessment using fatty acids and stable isotopes
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Liénart, Camilla, Savoye, Nicolas, Conan, Pascal, David, Valérie, Barbier, Pierrick, Bichon, Sabrina, Charlier, Karine, Costes, Laurence, Derriennic, Hervé, Ferreira, Sophie, Gueux, Aurore, Hubas, Cédric, Maria, Eric, and Meziane, Tarik
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- 2020
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12. A synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2022: the SNAPO-CO2-v1 dataset
- Author
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Metzl, Nicolas, Fin, Jonathan, Lo Monaco, Claire, Mignon, Claude, Alliouane, Samir, Antoine, David, Bourdin, Guillaume, Boutin, Jacqueline, Bozec, Yann, Conan, Pascal, Coppola, Laurent, Diaz, Frédéric, Douville, Eric, Durrieu de Madron, Xavier, Gattuso, Jean-Pierre, Gazeau, Frédéric, Golbol, Melek, Lansard, Bruno, Lefèvre, Dominique, Lefèvre, Nathalie, Lombard, Fabien, Louanchi, Férial, Merlivat, Liliane, Olivier, Léa, Petrenko, Anne, Petton, Sébastien, Pujo-Pay, Mireille, Rabouille, Christophe, Reverdin, Gilles, Ridame, Céline, Tribollet, Aline, Vellucci, Vincenzo, Wagener, Thibaut, Wimart-Rousseau, Cathy, Metzl, Nicolas, Fin, Jonathan, Lo Monaco, Claire, Mignon, Claude, Alliouane, Samir, Antoine, David, Bourdin, Guillaume, Boutin, Jacqueline, Bozec, Yann, Conan, Pascal, Coppola, Laurent, Diaz, Frédéric, Douville, Eric, Durrieu de Madron, Xavier, Gattuso, Jean-Pierre, Gazeau, Frédéric, Golbol, Melek, Lansard, Bruno, Lefèvre, Dominique, Lefèvre, Nathalie, Lombard, Fabien, Louanchi, Férial, Merlivat, Liliane, Olivier, Léa, Petrenko, Anne, Petton, Sébastien, Pujo-Pay, Mireille, Rabouille, Christophe, Reverdin, Gilles, Ridame, Céline, Tribollet, Aline, Vellucci, Vincenzo, Wagener, Thibaut, and Wimart-Rousseau, Cathy
- Abstract
Total alkalinity (AT) and dissolved inorganic carbon (CT) in the oceans are important properties with respect to understanding the ocean carbon cycle and its link to global change (ocean carbon sinks and sources, ocean acidification) and ultimately finding carbon-based solutions or mitigation procedures (marine carbon removal). We present a database of more than 44 400 AT and CT observations along with basic ancillary data (spatiotemporal location, depth, temperature and salinity) from various ocean regions obtained, mainly in the framework of French projects, since 1993. This includes both surface and water column data acquired in the open ocean, coastal zones and in the Mediterranean Sea and either from time series or dedicated one-off cruises. Most AT and CT data in this synthesis were measured from discrete samples using the same closed-cell potentiometric titration calibrated with Certified Reference Material, with an overall accuracy of ±4 µmol kg−1 for both AT and CT. The data are provided in two separate datasets – for the Global Ocean and the Mediterranean Sea (https://doi.org/10.17882/95414, Metzl et al., 2023), respectively – that offer a direct use for regional or global purposes, e.g., AT–salinity relationships, long-term CT estimates, and constraint and validation of diagnostic CT and AT reconstructed fields or ocean carbon and coupled climate–carbon models simulations as well as data derived from Biogeochemical-Argo (BGC-Argo) floats. When associated with other properties, these data can also be used to calculate pH, the fugacity of CO2 (fCO2) and other carbon system properties to derive ocean acidification rates or air–sea CO2 fluxes.
- Published
- 2024
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13. The ocean sampling day consortium
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Kopf, Anna, Bicak, Mesude, Kottmann, Renzo, Schnetzer, Julia, Kostadinov, Ivaylo, Lehmann, Katja, Fernandez-Guerra, Antonio, Jeanthon, Christian, Rahav, Eyal, Ullrich, Matthias, Wichels, Antje, Gerdts, Gunnar, Polymenakou, Paraskevi, Kotoulas, Giorgos, Siam, Rania, Abdallah, Rehab Z, Sonnenschein, Eva C, Cariou, Thierry, O’Gara, Fergal, Jackson, Stephen, Orlic, Sandi, Steinke, Michael, Busch, Julia, Duarte, Bernardo, Caçador, Isabel, Canning-Clode, João, Bobrova, Oleksandra, Marteinsson, Viggo, Reynisson, Eyjolfur, Loureiro, Clara Magalhães, Luna, Gian Marco, Quero, Grazia Marina, Löscher, Carolin R, Kremp, Anke, DeLorenzo, Marie E, Øvreås, Lise, Tolman, Jennifer, LaRoche, Julie, Penna, Antonella, Frischer, Marc, Davis, Timothy, Katherine, Barker, Meyer, Christopher P, Ramos, Sandra, Magalhães, Catarina, Jude-Lemeilleur, Florence, Aguirre-Macedo, Ma Leopoldina, Wang, Shiao, Poulton, Nicole, Jones, Scott, Collin, Rachel, Fuhrman, Jed A, Conan, Pascal, Alonso, Cecilia, Stambler, Noga, Goodwin, Kelly, Yakimov, Michael M, Baltar, Federico, Bodrossy, Levente, Van De Kamp, Jodie, Frampton, Dion MF, Ostrowski, Martin, Van Ruth, Paul, Malthouse, Paul, Claus, Simon, Deneudt, Klaas, Mortelmans, Jonas, Pitois, Sophie, Wallom, David, Salter, Ian, Costa, Rodrigo, Schroeder, Declan C, Kandil, Mahrous M, Amaral, Valentina, Biancalana, Florencia, Santana, Rafael, Pedrotti, Maria Luiza, Yoshida, Takashi, Ogata, Hiroyuki, Ingleton, Tim, Munnik, Kate, Rodriguez-Ezpeleta, Naiara, Berteaux-Lecellier, Veronique, Wecker, Patricia, Cancio, Ibon, Vaulot, Daniel, Bienhold, Christina, Ghazal, Hassan, Chaouni, Bouchra, Essayeh, Soumya, Ettamimi, Sara, Zaid, El Houcine, Boukhatem, Noureddine, Bouali, Abderrahim, Chahboune, Rajaa, Barrijal, Said, Timinouni, Mohammed, El Otmani, Fatima, Bennani, Mohamed, and Mea, Marianna
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Microbiology ,Oceanography ,Biological Sciences ,Earth Sciences ,Life Below Water ,Biodiversity ,Database Management Systems ,Marine Biology ,Metagenomics ,Oceans and Seas ,Ocean sampling day ,OSD ,Genomics ,Health Index ,Bacteria ,Microorganism ,Marine ,Micro B3 ,Standards - Abstract
Ocean Sampling Day was initiated by the EU-funded Micro B3 (Marine Microbial Biodiversity, Bioinformatics, Biotechnology) project to obtain a snapshot of the marine microbial biodiversity and function of the world's oceans. It is a simultaneous global mega-sequencing campaign aiming to generate the largest standardized microbial data set in a single day. This will be achievable only through the coordinated efforts of an Ocean Sampling Day Consortium, supportive partnerships and networks between sites. This commentary outlines the establishment, function and aims of the Consortium and describes our vision for a sustainable study of marine microbial communities and their embedded functional traits.
- Published
- 2015
14. A synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2022: the SNAPO-CO2-v1 dataset
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Metzl, Nicolas, primary, Fin, Jonathan, additional, Lo Monaco, Claire, additional, Mignon, Claude, additional, Alliouane, Samir, additional, Antoine, David, additional, Bourdin, Guillaume, additional, Boutin, Jacqueline, additional, Bozec, Yann, additional, Conan, Pascal, additional, Coppola, Laurent, additional, Diaz, Frédéric, additional, Douville, Eric, additional, Durrieu de Madron, Xavier, additional, Gattuso, Jean-Pierre, additional, Gazeau, Frédéric, additional, Golbol, Melek, additional, Lansard, Bruno, additional, Lefèvre, Dominique, additional, Lefèvre, Nathalie, additional, Lombard, Fabien, additional, Louanchi, Férial, additional, Merlivat, Liliane, additional, Olivier, Léa, additional, Petrenko, Anne, additional, Petton, Sébastien, additional, Pujo-Pay, Mireille, additional, Rabouille, Christophe, additional, Reverdin, Gilles, additional, Ridame, Céline, additional, Tribollet, Aline, additional, Vellucci, Vincenzo, additional, Wagener, Thibaut, additional, and Wimart-Rousseau, Cathy, additional
- Published
- 2024
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15. A comparison between water circulation and terrestrially-driven dissolved silica fluxes to the Mediterranean Sea traced using radium isotopes
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Tamborski, Joseph, Bejannin, Simon, Garcia-Orellana, Jordi, Souhaut, Marc, Charbonnier, Céline, Anschutz, Pierre, Pujo-Pay, Mireille, Conan, Pascal, Crispi, Olivier, Monnin, Christophe, Stieglitz, Thomas, Rodellas, Valentí, Andrisoa, Aladin, Claude, Christelle, and van Beek, Pieter
- Published
- 2018
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16. Spatiotemporal variability in Terminos Lagoon (Mexico) waters during the 2009–2010 drought reveals upcoming trophic status shift in response to climate change
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Fichez, Renaud, Linares, Carlos, Chifflet, Sandrine, Conan, Pascal, Esparza, Adolfo Contreras Ruiz, Denis, Lionel, Douillet, Pascal, Grenz, Christian, Ghiglione, Jean-François, Mendieta, Francisco Gutiérrez, Origel-Moreno, Montserrat, Caravaca, Alain Muñoz, Pujo-Pay, Mireille, and Zavala-Hidalgo, Jorge
- Published
- 2019
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17. Dynamics of particulate organic matter composition in coastal systems: Forcing of spatio-temporal variability at multi-systems scale
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Liénart, Camilla, Savoye, Nicolas, David, Valérie, Ramond, Pierre, Rodriguez Tress, Paco, Hanquiez, Vincent, Marieu, Vincent, Aubert, Fabien, Aubin, Sébastien, Bichon, Sabrina, Boinet, Christophe, Bourasseau, Line, Bozec, Yann, Bréret, Martine, Breton, Elsa, Caparros, Jocelyne, Cariou, Thierry, Claquin, Pascal, Conan, Pascal, Corre, Anne-Marie, Costes, Laurence, Crouvoisier, Muriel, Del Amo, Yolanda, Derriennic, Hervé, Dindinaud, François, Duran, Robert, Durozier, Maïa, Devesa, Jérémy, Ferreira, Sophie, Feunteun, Eric, Garcia, Nicole, Geslin, Sandrine, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gaël, Jolly, Orianne, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Véronique, Lamoureux, Jézabel, Lauga, Béatrice, Lebreton, Benoît, Lecuyer, Eric, Lehodey, Jean-Paul, Leroux, Cédric, L'Helguen, Stéphane, Macé, Eric, Maria, Eric, Mousseau, Laure, Nowaczyk, Antoine, Pineau, Philippe, Petit, Franck, Pujo-Pay, Mireille, Raimbault, Patrick, Rimmelin-Maury, Peggy, Rouaud, Vanessa, Sauriau, Pierre-Guy, Sultan, Emmanuelle, and Susperregui, Nicolas
- Published
- 2018
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18. Marine biodegradation of tailor-made polyhydroxyalkanoates (PHA) influenced by the chemical structure and associated bacterial communities
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Derippe, Gabrielle, primary, Philip, Léna, additional, Lemechko, Pierre, additional, Eyheraguibel, Boris, additional, Meistertzheim, Anne-Leïla, additional, Pujo-Pay, Mireille, additional, Conan, Pascal, additional, Barbe, Valérie, additional, Bruzaud, Stéphane, additional, and Ghiglione, Jean-François, additional
- Published
- 2023
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19. Benthic ecology of tropical coastal lagoons: Environmental changes over the last decades in the Términos Lagoon, Mexico
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Grenz, Christian, Fichez, Renaud, Silva, Carlos Álvarez, Benítez, Laura Calva, Conan, Pascal, Esparza, Adolfo Contreras Ruiz, Denis, Lionel, Ruiz, Silvia Díaz, Douillet, Pascal, Martinez, Margarita E. Gallegos, Ghiglione, Jean-François, Mendieta, Francisco José Gutiérrez, Origel-Moreno, Montserrat, Garcia, Antonio Zoilo Marquez, Caravaca, Alain Muñoz, Pujo-Pay, Mireille, Alvarado, Rocío Torres, and Zavala-Hidalgo, Jorge
- Published
- 2017
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20. Dynamics of particulate organic matter composition in coastal systems: A spatio-temporal study at multi-systems scale
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Liénart, Camilla, Savoye, Nicolas, Bozec, Yann, Breton, Elsa, Conan, Pascal, David, Valérie, Feunteun, Eric, Grangeré, Karine, Kerhervé, Philippe, Lebreton, Benoît, Lefebvre, Sébastien, L'Helguen, Stéphane, Mousseau, Laure, Raimbault, Patrick, Richard, Pierre, Riera, Pascal, Sauriau, Pierre-Guy, Schaal, Gauthier, Aubert, Fabien, Aubin, Sébastien, Bichon, Sabrina, Boinet, Christophe, Bourasseau, Line, Bréret, Martine, Caparros, Jocelyne, Cariou, Thierry, Charlier, Karine, Claquin, Pascal, Cornille, Vincent, Corre, Anne-Marie, Costes, Laurence, Crispi, Olivier, Crouvoisier, Muriel, Czamanski, Marie, Del Amo, Yolanda, Derriennic, Hervé, Dindinaud, François, Durozier, Maïa, Hanquiez, Vincent, Nowaczyk, Antoine, Devesa, Jérémy, Ferreira, Sophie, Fornier, Michel, Garcia, Fabrice, Garcia, Nicole, Geslin, Sandrine, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gaël, Joly, Orianne, Lachaussée, Nicolas, Lafont, Michel, Lamoureux, Jézabel, Lecuyer, Eric, Lehodey, Jean-Paul, Lemeille, David, Leroux, Cédric, Macé, Eric, Maria, Eric, Pineau, Philippe, Petit, Franck, Pujo-Pay, Mireille, Rimelin-Maury, Peggy, and Sultan, Emmanuelle
- Published
- 2017
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21. Phosphomonoesterase and phosphodiesterase activities in the eastern Mediterranean in two contrasting seasonal situations.
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Van Wambeke, France, Conan, Pascal, Pujo-Pay, Mireille, Taillandier, Vincent, Crispi, Olivier, Pavlidou, Alexandra, Nunige, Sandra, Didry, Morgane, Salmeron, Christophe, and Pulido-Villena, Elvira
- Subjects
MARINE microorganisms ,EXTRACELLULAR enzymes ,AUTUMN ,PHOSPHODIESTERS ,PHOSPHORUS - Abstract
Hydrolysis of dissolved organic phosphorus by marine planktonic microorganisms is a key process in the P cycle, particularly in P -depleted, oligotrophic environments. The present study assessed spatiotemporal variations in phosphomonoesterase (PME) and phosphodiesterase (PDE) activities using concentration kinetics in the eastern Mediterranean Sea in two contrasting situations: the end of winter (including a small bloom period) and autumn. The distribution and regulation of the maximum hydrolysis rate (Vm) and half-saturation constant (Km) of both ectoenzymes were assessed in relation to the vertical structure of the epipelagic layers. PME reached its maximum activities (Vm) after the addition of 1 µM MUF-P (4-methylumbelliferyl phosphate), whereas, for PDE, it was necessary to add up to 50 µM bis(4-methylumbelliferyl)phosphate (bis-MUF-P) to reach saturation state. On average, the Km of PDE was 33 ± 25 times higher than that of PME. The Vm of PME and Vm of PDE were linearly correlated. Conversely to the Km values, Vm values were on the same order of magnitude for both ectoenzymes, with their ratio (Vm PME : Vm PDE) ranging between 0.2 and 6.3. Dissolved organic phosphorus (DOP) and the phosphomonoesterase hydrolysable fraction of DOP explained most of the lack of variability in Vm PME and Vm PDE. On the contrary, Vm of both phosphohydrolase enzymes was inversely correlated to the concentration of dissolved inorganic phosphorus. The particular characteristics of concentration kinetics obtained for PDE (saturation at 50 µM , high Km , high turnover times) are discussed with respect to the possible unequal distribution of PDE and PME among the size continuum of organic material and accessibility of phosphodiesters. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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22. Multicontamination phenomena occur more often than expected in Mediterranean coastal watercourses: Study case of the Têt River (France)
- Author
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Reoyo-Prats, Brice, Aubert, Dominique, Menniti, Christophe, Ludwig, Wolfgang, Sola, Jennifer, Pujo-Pay, Mireille, Conan, Pascal, Verneau, Olivier, and Palacios, Carmen
- Published
- 2017
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23. A synthesis of SNAPO-CO2 ocean total alkalinity and total dissolved inorganic carbon measurements from 1993 to 2022
- Author
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Metzl, Nicolas, primary, Fin, Jonathan, additional, Lo Monaco, Claire, additional, Mignon, Claude, additional, Alliouane, Samir, additional, Antoine, David, additional, Bourdin, Guillaume, additional, Boutin, Jacqueline, additional, Bozec, Yann, additional, Conan, Pascal, additional, Coppola, Laurent, additional, Diaz, Frédéric, additional, Douville, Eric, additional, Durrieu de Madron, Xavier, additional, Gattuso, Jean-Pierre, additional, Gazeau, Frédéric, additional, Golbol, Melek, additional, Lansard, Bruno, additional, Lefèvre, Dominique, additional, Lefèvre, Nathalie, additional, Lombard, Fabien, additional, Louanchi, Férial, additional, Merlivat, Liliane, additional, Olivier, Léa, additional, Petrenko, Anne, additional, Petton, Sébastien, additional, Pujo-Pay, Mireille, additional, Rabouille, Christophe, additional, Reverdin, Gilles, additional, Ridame, Céline, additional, Tribollet, Aline, additional, Vellucci, Vincenzo, additional, Wagener, Thibaut, additional, and Wimart-Rousseau, Cathy, additional
- Published
- 2023
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24. Supplementary material to "A synthesis of SNAPO-CO2 ocean total alkalinity and total dissolved inorganic carbon measurements from 1993 to 2022"
- Author
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Metzl, Nicolas, primary, Fin, Jonathan, additional, Lo Monaco, Claire, additional, Mignon, Claude, additional, Alliouane, Samir, additional, Antoine, David, additional, Bourdin, Guillaume, additional, Boutin, Jacqueline, additional, Bozec, Yann, additional, Conan, Pascal, additional, Coppola, Laurent, additional, Diaz, Frédéric, additional, Douville, Eric, additional, Durrieu de Madron, Xavier, additional, Gattuso, Jean-Pierre, additional, Gazeau, Frédéric, additional, Golbol, Melek, additional, Lansard, Bruno, additional, Lefèvre, Dominique, additional, Lefèvre, Nathalie, additional, Lombard, Fabien, additional, Louanchi, Férial, additional, Merlivat, Liliane, additional, Olivier, Léa, additional, Petrenko, Anne, additional, Petton, Sébastien, additional, Pujo-Pay, Mireille, additional, Rabouille, Christophe, additional, Reverdin, Gilles, additional, Ridame, Céline, additional, Tribollet, Aline, additional, Vellucci, Vincenzo, additional, Wagener, Thibaut, additional, and Wimart-Rousseau, Cathy, additional
- Published
- 2023
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25. Seasonal and interannual variability of the pelagic ecosystem and of the organic carbon budget in the Rhodes Gyre (eastern Mediterranean): influence of winter mixing
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Habib, Joelle, primary, Ulses, Caroline, additional, Estournel, Claude, additional, Fakhri, Milad, additional, Marsaleix, Patrick, additional, Pujo-Pay, Mireille, additional, Fourrier, Marine, additional, Coppola, Laurent, additional, Mignot, Alexandre, additional, Mortier, Laurent, additional, and Conan, Pascal, additional
- Published
- 2023
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26. HyMeX-SOP2 : The Field Campaign Dedicated to Dense Water Formation in the Northwestern Mediterranean
- Author
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Estournel, Claude, Testor, Pierre, Taupier-Letage, Isabelle, Bouin, Marie-Noelle, Coppola, Laurent, Durand, Pierre, Conan, Pascal, Bosse, Anthony, Brilouet, Pierre-Etienne, Beguery, Laurent, Belamari, Sophie, Béranger, Karine, Beuvier, Jonathan, Bourras, Denis, Canut, Guylaine, Doerenbecher, Alexis, de Madron, Xavier Durrieu, D'Ortenzio, Fabrizio, Drobinski, Philippe, Ducrocq, Véronique, Fourrié, Nadia, Giordani, Hervé, Houpert, Loïc, Labatut, Laurent, Brossier, Cindy Lebeaupin, Nuret, Mathieu, Prieur, Louis, Roussot, Odile, Seyfried, Leo, and Somot, Samuel
- Published
- 2016
27. Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems
- Author
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Lombard, Fabien, Bourdin, Guillaume, Pesant, Stéphane, Agostini, Sylvain, Baudena, Alberto, Boissin, Emilie, Cassar, Nicolas, Clampitt, Megan, Conan, Pascal, Da Silva, Ophélie, Dimier, Céline, Douville, Eric, Elineau, Amanda, Fin, Jonathan, Flores, J. Michel, Ghiglione, Jean-françois, Hume, Benjamin C. C., Jalabert, Laetitia, John, Seth G., Kelly, Rachel L., Koren, Ilan, Lin, Yajuan, Marie, Dominique, Mcminds, Ryan, Mériguet, Zoé, Metzl, Nicolas, Paz-garcía, David A., Pedrotti, Maria Luiza, Poulain, Julie, Pujo-pay, Mireille, Ras, Joséphine, Reverdin, Gilles, Romac, Sarah, Rouan, Alice, Röttinger, Eric, Vardi, Assaf, Voolstra, Christian R., Moulin, Clémentine, Iwankow, Guillaume, Banaigs, Bernard, Bowler, Chris, De Vargas, Colomban, Forcioli, Didier, Furla, Paola, Galand, Pierre E., Gilson, Eric, Reynaud, Stéphanie, Sunagawa, Shinichi, Sullivan, Matthew B., Thomas, Olivier P., Troublé, Romain, Thurber, Rebecca Vega, Wincker, Patrick, Zoccola, Didier, Allemand, Denis, Planes, Serge, Boss, Emmanuel, Gorsky, Gaby, Lombard, Fabien, Bourdin, Guillaume, Pesant, Stéphane, Agostini, Sylvain, Baudena, Alberto, Boissin, Emilie, Cassar, Nicolas, Clampitt, Megan, Conan, Pascal, Da Silva, Ophélie, Dimier, Céline, Douville, Eric, Elineau, Amanda, Fin, Jonathan, Flores, J. Michel, Ghiglione, Jean-françois, Hume, Benjamin C. C., Jalabert, Laetitia, John, Seth G., Kelly, Rachel L., Koren, Ilan, Lin, Yajuan, Marie, Dominique, Mcminds, Ryan, Mériguet, Zoé, Metzl, Nicolas, Paz-garcía, David A., Pedrotti, Maria Luiza, Poulain, Julie, Pujo-pay, Mireille, Ras, Joséphine, Reverdin, Gilles, Romac, Sarah, Rouan, Alice, Röttinger, Eric, Vardi, Assaf, Voolstra, Christian R., Moulin, Clémentine, Iwankow, Guillaume, Banaigs, Bernard, Bowler, Chris, De Vargas, Colomban, Forcioli, Didier, Furla, Paola, Galand, Pierre E., Gilson, Eric, Reynaud, Stéphanie, Sunagawa, Shinichi, Sullivan, Matthew B., Thomas, Olivier P., Troublé, Romain, Thurber, Rebecca Vega, Wincker, Patrick, Zoccola, Didier, Allemand, Denis, Planes, Serge, Boss, Emmanuel, and Gorsky, Gaby
- Abstract
The Tara Pacific expedition (2016–2018) sampled coral ecosystems around 32 islands in the Pacific Ocean and the ocean surface waters at 249 locations, resulting in the collection of nearly 58 000 samples. The expedition was designed to systematically study warm-water coral reefs and included the collection of corals, fish, plankton, and seawater samples for advanced biogeochemical, molecular, and imaging analysis. Here we provide a complete description of the sampling methodology, and we explain how to explore and access the different datasets generated by the expedition. Environmental context data were obtained from taxonomic registries, gazetteers, almanacs, climatologies, operational biogeochemical models, and satellite observations. The quality of the different environmental measures has been validated not only by various quality control steps, but also through a global analysis allowing the comparison with known environmental large-scale structures. Such publicly released datasets open the perspective to address a wide range of scientific questions.
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- 2023
- Full Text
- View/download PDF
28. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT
- Author
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Breton, Elsa, Savoye, Nicolas, Rimmelin-maury, Peggy, Sautour, Benoit, Goberville, Eric, Lheureux, Arnaud, Cariou, Thierry, Ferreira, Sophie, Agogué, Hélène, Alliouane, Samir, Aubert, Fabien, Aubin, Sébastien, Berthebaud, Eric, Blayac, Hadrien, Blondel, Lucie, Boulart, Cedric, Bozec, Yann, Bureau, Sarah, Caillo, Arnaud, Cauvin, Arnaud, Cazes, Jean-baptiste, Chasselin, Leo, Claquin, Pascal, Conan, Pascal, Cordier, Marie-ange, Costes, Laurence, Crec’hriou, Romain, Crispi, Olivier, Crouvoisier, Muriel, David, Valérie, Del Amo, Yolanda, De Lary, Hortense, Delebecq, Gaspard, Devesa, Jeremy, Domeau, Aurélien, Durozier, Maria, Emery, Claire, Feunteun, Eric, Fauchot, Juliette, Gentilhomme, Valérie, Geslin, Sandrine, Giraud, Mélanie, Grangeré, Karine, Grégori, Gerald, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gael, Harrewyn, Manon, Jolly, Orianne, Jude-lemeilleur, Florence, Labatut, Paul, Labourdette, Nathalie, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Veronique, Lambert, Christophe, Lamoureux, Jezebel, Lanceleur, Laurent, Lebreton, Benoit, Lecuyer, Eric, Lemeille, David, Leredde, Yann, Leroux, Cédric, Leynaert, Aude, L’helguen, Stéphane, Liénart, Camilla, Macé, Eric, Maria, Eric, Marie, Barbara, Marie, Dominique, Mas, Sébastien, Mendes, Fabrice, Mornet, Line, Mostajir, Behzad, Mousseau, Laure, Nowaczyk, Antoine, Nunige, Sandra, Parra, René, Paulin, Thomas, Pecqueur, David, Petit, Franck, Pineau, Philippe, Raimbault, Patrick, Rigaut-jalabert, Fabienne, Salmeron, Christophe, Salter, Ian, Sauriau, Pierre-guy, Seuront, Laurent, Sultan, Emmanuelle, Valdès, Rémi, Vantrepotte, Vincent, Vidussi, Francesca, Voron, Florian, Vuillemin, Renaud, Zudaire, Laurent., Garcia, Nicole, Breton, Elsa, Savoye, Nicolas, Rimmelin-maury, Peggy, Sautour, Benoit, Goberville, Eric, Lheureux, Arnaud, Cariou, Thierry, Ferreira, Sophie, Agogué, Hélène, Alliouane, Samir, Aubert, Fabien, Aubin, Sébastien, Berthebaud, Eric, Blayac, Hadrien, Blondel, Lucie, Boulart, Cedric, Bozec, Yann, Bureau, Sarah, Caillo, Arnaud, Cauvin, Arnaud, Cazes, Jean-baptiste, Chasselin, Leo, Claquin, Pascal, Conan, Pascal, Cordier, Marie-ange, Costes, Laurence, Crec’hriou, Romain, Crispi, Olivier, Crouvoisier, Muriel, David, Valérie, Del Amo, Yolanda, De Lary, Hortense, Delebecq, Gaspard, Devesa, Jeremy, Domeau, Aurélien, Durozier, Maria, Emery, Claire, Feunteun, Eric, Fauchot, Juliette, Gentilhomme, Valérie, Geslin, Sandrine, Giraud, Mélanie, Grangeré, Karine, Grégori, Gerald, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gael, Harrewyn, Manon, Jolly, Orianne, Jude-lemeilleur, Florence, Labatut, Paul, Labourdette, Nathalie, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Veronique, Lambert, Christophe, Lamoureux, Jezebel, Lanceleur, Laurent, Lebreton, Benoit, Lecuyer, Eric, Lemeille, David, Leredde, Yann, Leroux, Cédric, Leynaert, Aude, L’helguen, Stéphane, Liénart, Camilla, Macé, Eric, Maria, Eric, Marie, Barbara, Marie, Dominique, Mas, Sébastien, Mendes, Fabrice, Mornet, Line, Mostajir, Behzad, Mousseau, Laure, Nowaczyk, Antoine, Nunige, Sandra, Parra, René, Paulin, Thomas, Pecqueur, David, Petit, Franck, Pineau, Philippe, Raimbault, Patrick, Rigaut-jalabert, Fabienne, Salmeron, Christophe, Salter, Ian, Sauriau, Pierre-guy, Seuront, Laurent, Sultan, Emmanuelle, Valdès, Rémi, Vantrepotte, Vincent, Vidussi, Francesca, Voron, Florian, Vuillemin, Renaud, Zudaire, Laurent., and Garcia, Nicole
- Abstract
IntroductionWhile crucial to ensuring the production of accurate and high-quality data—and to avoid erroneous conclusions—data quality control (QC) in environmental monitoring datasets is still poorly documented. MethodsWith a focus on annual inter-laboratory comparison (ILC) exercises performed in the context of the French coastal monitoring SOMLIT network, we share here a pragmatic approach to QC, which allows the calculation of systematic and random errors, measurement uncertainty, and individual performance. After an overview of the different QC actions applied to fulfill requirements for quality and competence, we report equipment, accommodation, design of the ILC exercises, and statistical methodology specially adapted to small environmental networks (<20 laboratories) and multivariate datasets. Finally, the expanded uncertainty of measurement for 20 environmental variables routinely measured by SOMLIT from discrete sampling—including Essential Ocean Variables—is provided. Results, Discussion, ConclusionThe examination of the temporal variations (2001–2021) in the repeatability, reproducibility, and trueness of the SOMLIT network over time confirms the essential role of ILC exercises as a tool for the continuous improvement of data quality in environmental monitoring datasets.
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- 2023
- Full Text
- View/download PDF
29. Seasonal and interannual variability of the pelagic ecosystem and of the organic carbon budget in the Rhodes Gyre (Eastern Mediterranean): influence of winter mixing
- Author
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Habib, Joelle, Ulses, Caroline, Estournel, Claude, Fakhri, Milad, Marsaleix, Patrick, Pujo-pay, Mireille, Conan, Pascal, Fourrier, Marine, Coppola, Laurent, Mignot, Alexandre, Mortier, Laurent, Habib, Joelle, Ulses, Caroline, Estournel, Claude, Fakhri, Milad, Marsaleix, Patrick, Pujo-pay, Mireille, Conan, Pascal, Fourrier, Marine, Coppola, Laurent, Mignot, Alexandre, and Mortier, Laurent
- Abstract
The Rhodes Gyre is a cyclonic persistent feature of the general circulation of the Levantine Basin in the eastern Mediterranean Sea. Although it is located in the most oligotrophic basin of the Mediterranean Sea, it is a relatively high primary production area due to strong winter nutrient supply associated with the formation of Levantine Intermediate Water. In this study, a 3D coupled hydrodynamic-biogeochemical model (SYMPHONIE/Eco3M-S) was used to characterize the seasonal and interannual variability of the Rhodes Gyre’s ecosystem and to estimate an annual organic carbon budget over the 2013–2020 period. Comparisons of model outputs with satellite data and compiled in situ data from cruises and BioGeoChemical-Argo floats revealed the ability of the model to reconstruct the main seasonal and spatial biogeochemical dynamics of the Levantine Basin. The model results indicated that during the winter mixing period, phytoplankton first progressively grow sustained by nutrient supply. Then, short episodes of convection driven by heat loss and wind events, favoring nutrient injections, organic carbon export, and inducing light limitation on primary production, alternate with short episodes of phytoplankton growth. The estimate of the annual organic carbon budget indicated that the Rhodes Gyre is an autotrophic area with a positive net community production in the upper layer (0–150 m) amounting to 31.2 ± 6.9 g C m-2 year-1. Net community production in the upper layer is almost balanced over the seven-year period by physical transfers, (1) via downward export (16.8 ± 6.2 g C m-2 year-1) and (2) through lateral transport towards the surrounding regions (14.1 ± 2.1 g C m-2 year-1). The intermediate layer (150–400 m) also appears to be a source of organic carbon for the surrounding Levantine Sea (7.5 ± 2.8 g C m-2 year-1) mostly through the subduction of Levantine Intermediate Water following winter mixing. The Rhodes Gyre shows high interannual variability with enhanced prim
- Published
- 2023
- Full Text
- View/download PDF
30. Phosphomonoesterase and phosphodiesterase activities in the Eastern Mediterranean Sea during stratified versus mixed conditions
- Author
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Van Wambeke, France, Conan, Pascal, Pujo-pay, Mireille, Taillandier, Vincent, Crispi, Olivier, Pulido-villena, Elvira, Van Wambeke, France, Conan, Pascal, Pujo-pay, Mireille, Taillandier, Vincent, Crispi, Olivier, and Pulido-villena, Elvira
- Abstract
Dissolved organic phosphorus hydrolysis by marine planktonic microorganisms is a key process in the P cycle, particularly in P-depleted, oligotrophic environments. The present study assessed spatio-temporal variations of phosphomonoesterase (PME) and phosphodiesterase (PDE) activities using concentration kinetics in the eastern Mediterranean Sea during 2 contrasted situations: the end of winter (including a small bloom period), and autumn. The distribution and regulation of the maximum hydrolysis rates (Vm) and half-saturation constants (Km) of both ectoenzymes were assessed in relation to the vertical structure of the epipelagic layers. PME reached their maximum activities (Vm) after 1 µM MUF-P addition whereas, for PDE, it was necessary to add up to 50 µM bis-MUF-P to reach saturation state. On average, the Km of PDE was 33 ± 25- times higher than that of the PME. Vm of PME and Vm of PDE were linearly correlated. Conversely to the Km values, Vm were on the same order of magnitude for both ectoenzymes, their ratio (Vm PME:Vm PDE) ranging between 0.2 and 6.3). Dissolved organic phosphorus (DOP) and the phosphomonoesterease hydrolysable fraction of DOP explained mostly no variability of Vm PME nor Vm PDE. On the contrary, Vm of both phosphohydrolase enzymes was inversely correlated to DIP concentration. The particular characteristics of concentration kinetics obtained for PDE (saturation at 50 µM, high Km, high turnovertimes) are discussed with respect to possible inequal distribution of PDE and PME among organic material size continuum, and accessibility to phosphodiesters.
- Published
- 2023
- Full Text
- View/download PDF
31. Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems
- Author
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Lombard, Fabien, primary, Bourdin, Guillaume, additional, Pesant, Stéphane, additional, Agostini, Sylvain, additional, Baudena, Alberto, additional, Boissin, Emilie, additional, Cassar, Nicolas, additional, Clampitt, Megan, additional, Conan, Pascal, additional, Da Silva, Ophélie, additional, Dimier, Céline, additional, Douville, Eric, additional, Elineau, Amanda, additional, Fin, Jonathan, additional, Flores, J. Michel, additional, Ghiglione, Jean-François, additional, Hume, Benjamin C. C., additional, Jalabert, Laetitia, additional, John, Seth G., additional, Kelly, Rachel L., additional, Koren, Ilan, additional, Lin, Yajuan, additional, Marie, Dominique, additional, McMinds, Ryan, additional, Mériguet, Zoé, additional, Metzl, Nicolas, additional, Paz-García, David A., additional, Pedrotti, Maria Luiza, additional, Poulain, Julie, additional, Pujo-Pay, Mireille, additional, Ras, Joséphine, additional, Reverdin, Gilles, additional, Romac, Sarah, additional, Rouan, Alice, additional, Röttinger, Eric, additional, Vardi, Assaf, additional, Voolstra, Christian R., additional, Moulin, Clémentine, additional, Iwankow, Guillaume, additional, Banaigs, Bernard, additional, Bowler, Chris, additional, de Vargas, Colomban, additional, Forcioli, Didier, additional, Furla, Paola, additional, Galand, Pierre E., additional, Gilson, Eric, additional, Reynaud, Stéphanie, additional, Sunagawa, Shinichi, additional, Sullivan, Matthew B., additional, Thomas, Olivier P., additional, Troublé, Romain, additional, Thurber, Rebecca Vega, additional, Wincker, Patrick, additional, Zoccola, Didier, additional, Allemand, Denis, additional, Planes, Serge, additional, Boss, Emmanuel, additional, and Gorsky, Gaby, additional
- Published
- 2023
- Full Text
- View/download PDF
32. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT
- Author
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Breton, Elsa, primary, Savoye, Nicolas, additional, Rimmelin-Maury, Peggy, additional, Sautour, Benoit, additional, Goberville, Eric, additional, Lheureux, Arnaud, additional, Cariou, Thierry, additional, Ferreira, Sophie, additional, Agogué, Hélène, additional, Alliouane, Samir, additional, Aubert, Fabien, additional, Aubin, Sébastien, additional, Berthebaud, Eric, additional, Blayac, Hadrien, additional, Blondel, Lucie, additional, Boulart, Cédric, additional, Bozec, Yann, additional, Bureau, Sarah, additional, Caillo, Arnaud, additional, Cauvin, Arnaud, additional, Cazes, Jean-Baptiste, additional, Chasselin, Léo, additional, Claquin, Pascal, additional, Conan, Pascal, additional, Cordier, Marie-Ange, additional, Costes, Laurence, additional, Crec’hriou, Romain, additional, Crispi, Olivier, additional, Crouvoisier, Muriel, additional, David, Valérie, additional, Del Amo, Yolanda, additional, De Lary, Hortense, additional, Delebecq, Gaspard, additional, Devesa, Jeremy, additional, Domeau, Aurélien, additional, Durozier, Maria, additional, Emery, Claire, additional, Feunteun, Eric, additional, Fauchot, Juliette, additional, Gentilhomme, Valérie, additional, Geslin, Sandrine, additional, Giraud, Mélanie, additional, Grangeré, Karine, additional, Grégori, Gerald, additional, Grossteffan, Emilie, additional, Gueux, Aurore, additional, Guillaudeau, Julien, additional, Guillou, Gael, additional, Harrewyn, Manon, additional, Jolly, Orianne, additional, Jude-Lemeilleur, Florence, additional, Labatut, Paul, additional, Labourdette, Nathalie, additional, Lachaussée, Nicolas, additional, Lafont, Michel, additional, Lagadec, Veronique, additional, Lambert, Christophe, additional, Lamoureux, Jezebel, additional, Lanceleur, Laurent, additional, Lebreton, Benoit, additional, Lecuyer, Eric, additional, Lemeille, David, additional, Leredde, Yann, additional, Leroux, Cédric, additional, Leynaert, Aude, additional, L’Helguen, Stéphane, additional, Liénart, Camilla, additional, Macé, Eric, additional, Maria, Eric, additional, Marie, Barbara, additional, Marie, Dominique, additional, Mas, Sébastien, additional, Mendes, Fabrice, additional, Mornet, Line, additional, Mostajir, Behzad, additional, Mousseau, Laure, additional, Nowaczyk, Antoine, additional, Nunige, Sandra, additional, Parra, René, additional, Paulin, Thomas, additional, Pecqueur, David, additional, Petit, Franck, additional, Pineau, Philippe, additional, Raimbault, Patrick, additional, Rigaut-Jalabert, Fabienne, additional, Salmeron, Christophe, additional, Salter, Ian, additional, Sauriau, Pierre-Guy, additional, Seuront, Laurent, additional, Sultan, Emmanuelle, additional, Valdès, Rémi, additional, Vantrepotte, Vincent, additional, Vidussi, Francesca, additional, Voron, Florian, additional, Vuillemin, Renaud, additional, Zudaire, Laurent., additional, and Garcia, Nicole, additional
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- 2023
- Full Text
- View/download PDF
33. Top-Down Control of Diesel-Degrading Prokaryotic Communities
- Author
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Sauret, Caroline, Böttjer, Daniela, Talarmin, Agathe, Guigue, Catherine, Conan, Pascal, Pujo-Pay, Mireille, and Ghiglione, Jean-François
- Published
- 2015
34. Marine Biodegradation of Tailor-Made Polyhydroxyalkanoates (Pha) Influenced by the Chemical Structure and Associated Bacterial Communities
- Author
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Ghiglione, Jean-François, primary, Philip, Léna, additional, lemechko, pierre, additional, EYHERAGUIBEL, Boris, additional, Meistertzheim, Anne-Leila, additional, Mireille, Pujo-Pay, additional, conan, pascal, additional, Barbe, Valérie, additional, Bruzaud, Stéphane, additional, and Derippe, Gabrielle, additional
- Published
- 2023
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- View/download PDF
35. ‘Rare biosphere’ bacteria as key phenanthrene degraders in coastal seawaters
- Author
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Sauret, Caroline, Séverin, Tatiana, Vétion, Gilles, Guigue, Catherine, Goutx, Madeleine, Pujo-Pay, Mireille, Conan, Pascal, Fagervold, Sonja K., and Ghiglione, Jean-François
- Published
- 2014
- Full Text
- View/download PDF
36. Phosphomonoesterase and phosphodiesterase activities in the Eastern Mediterranean Sea during stratified versus mixed conditions.
- Author
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Wambeke, France Van, Conan, Pascal, Pujo-Pay, Mireille, Taillandier, Vincent, Crispi, Olivier, and Pulido-Villena, Elvira
- Subjects
EXTRACELLULAR enzymes ,MARINE microorganisms ,SPATIO-temporal variation ,AUTUMN ,PHOSPHODIESTERS ,PHOSPHATASES - Abstract
Dissolved organic phosphorus hydrolysis by marine planktonic microorganisms is a key process in the P cycle, particularly in P-depleted, oligotrophic environments. The present study assessed spatio-temporal variations of phosphomonoesterase (PME) and phosphodiesterase (PDE) activities using concentration kinetics in the eastern Mediterranean Sea during 2 contrasted situations: the end of winter (including a small bloom period), and autumn. The distribution and regulation of the maximum hydrolysis rates (Vm) and half-saturation constants (Km) of both ectoenzymes were assessed in relation to the vertical structure of the epipelagic layers. PME reached their maximum activities (Vm) after 1 µM MUF-P addition whereas, for PDE, it was necessary to add up to 50 µM bis-MUF-P to reach saturation state. On average, the Km of PDE was 33 ± 25- times higher than that of the PME. Vm of PME and Vm of PDE were linearly correlated. Conversely to the Km values, Vm were on the same order of magnitude for both ectoenzymes, their ratio (Vm PME:Vm PDE) ranging between 0.2 and 6.3). Dissolved organic phosphorus (DOP) and the phosphomonoesterease hydrolysable fraction of DOP explained mostly no variability of Vm PME nor Vm PDE. On the contrary, Vm of both phosphohydrolase enzymes was inversely correlated to DIP concentration. The particular characteristics of concentration kinetics obtained for PDE (saturation at 50 µM, high Km, high turnovertimes) are discussed with respect to possible inequal distribution of PDE and PME among organic material size continuum, and accessibility to phosphodiesters. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
37. Seasonal and interannual variability of the pelagic ecosystem and of the organic carbon budget in the Rhodes Gyre (Eastern Mediterranean): influence of winter mixing
- Author
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Habib, Joelle, primary, Ulses, Caroline, additional, Estournel, Claude, additional, Fakhri, Milad, additional, Marsaleix, Patrick, additional, Pujo-Pay, Mireille, additional, Conan, Pascal, additional, Fourrier, Marine, additional, Coppola, Laurent, additional, Mignot, Alexandre, additional, and Mortier, Laurent, additional
- Published
- 2022
- Full Text
- View/download PDF
38. Supplementary material to "Seasonal and interannual variability of the pelagic ecosystem and of the organic carbon budget in the Rhodes Gyre (Eastern Mediterranean): influence of winter mixing"
- Author
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Habib, Joelle, primary, Ulses, Caroline, additional, Estournel, Claude, additional, Fakhri, Milad, additional, Marsaleix, Patrick, additional, Pujo-Pay, Mireille, additional, Conan, Pascal, additional, Fourrier, Marine, additional, Coppola, Laurent, additional, Mignot, Alexandre, additional, and Mortier, Laurent, additional
- Published
- 2022
- Full Text
- View/download PDF
39. A synthesis of SNAPO-CO2 ocean total alkalinity and total dissolved inorganic carbon measurements from 1993 to 2022.
- Author
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Metzl, Nicolas, Fin, Jonathan, Lo Monaco, Claire, Mignon, Claude, Alliouane, Samir, Antoine, David, Bourdin, Guillaume, Boutin, Jacqueline, Bozec, Yann, Conan, Pascal, Coppola, Laurent, Diaz, Frédéric, Douville, Eric, de Madron, Xavier Durrieu, Gattuso, Jean-Pierre, Gazeau, Frédéric, Golbol, Melek, Lansard, Bruno, Lefèvre, Dominique, and Lefèvre, Nathalie
- Subjects
CARBON cycle ,OCEAN ,ALKALINITY ,OCEAN acidification ,POTENTIOMETRY ,COASTS - Abstract
Total alkalinity (AT) and total dissolved inorganic carbon (CT) in the oceans are important properties to understand the ocean carbon cycle and its link with climate change (ocean carbon sinks and sources) or global change (ocean acidification). We present a data-base of more than 44 400 AT and CT observations in various ocean regions obtained since 1993 mainly in the frame of French projects. This includes both surface and water columns data acquired in open oceans, coastal zones and in the Mediterranean Sea and either from time-series or punctual cruises. Most AT and CT data in this synthesis were measured from discrete samples using the same closed-cell potentiometric titration calibrated with Certified Reference Material, with an overall accuracy of ± 4 µmol kg-1 for both AT and CT. Given the lack of observations in the Indian and Southern Oceans, we added sea surface underway AT and CT data obtained in 1998-2018 in the frame of OISO cruises and in 2019 during the CLIM-EPARSES cruise measured onboard using the same technique. Separate datasets for the global ocean, and for the Mediterranean Sea are provided in a single format (https://doi.org/10.17882/95414, Metzl et al., 2023) that offers a direct use for regional or global purposes, e.g. AT/Salinity relationships, long-term CT estimates, constraint and validation of diagnostics CT-AT reconstructed fields or ocean carbon and coupled climate/carbon models simulations, as well as data derived from BG-ARGO floats. When associated with other properties, these data can also be used to calculate pH, fugacity of CO2 (fCO2) and other carbon systems properties to derive ocean acidification rates or air-sea CO2 fluxes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
40. Seasonal and interannual variability of the pelagic ecosystem and of the organic carbon budget in the Rhodes Gyre (Eastern Mediterranean): influence of winter mixing
- Author
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Habib, Joelle, Ulses, Caroline, Estournel, Claude, Fakhri, Milad, Marsaleix, Patrick, Pujo-pay, Mireille, Conan, Pascal, Fourrier, Marine, Coppola, Laurent, Mignot, Alexandre, Mortier, Laurent, Habib, Joelle, Ulses, Caroline, Estournel, Claude, Fakhri, Milad, Marsaleix, Patrick, Pujo-pay, Mireille, Conan, Pascal, Fourrier, Marine, Coppola, Laurent, Mignot, Alexandre, and Mortier, Laurent
- Abstract
The Rhodes Gyre is a cyclonic persistent feature of the general circulation of the Levantine Basin in the eastern Mediterranean Sea. Although it is located in the most oligotrophic basin of the Mediterranean Sea, it is a relatively high primary production area due to strong winter nutrient supply associated with the formation of Levantine Intermediate Water. In this study, a 3D coupled hydrodynamic-biogeochemical model (SYMPHONIE/Eco3M-S) was used to characterize the seasonal and interannual variability of the Rhodes Gyre’s ecosystem and to estimate an annual organic carbon budget over the 2013–2020 period. Comparisons of model outputs with satellite data and compiled in situ data from cruises and BioGeoChemical-Argo floats revealed the ability of the model to reconstruct the main seasonal and spatial biogeochemical dynamics of the Levantine Basin. The model results indicated that during the winter mixing period, phytoplankton first progressively grow sustained by nutrient supply. Then, short episodes of convection driven by heat loss and wind events, favoring nutrient injections, organic carbon export, and inducing light limitation on primary production, alternate with short episodes of phytoplankton growth. The estimate of the annual organic carbon budget indicated that the Rhodes Gyre is an autotrophic area with a positive net community production in the upper layer (0–150 m) amounting to 31.2 ± 6.9 g C m-2 year-1. Net community production in the upper layer is almost balanced over the seven-year period by physical transfers, (1) via downward export (16.8 ± 6.2 g C m-2 year-1) and (2) through lateral transport towards the surrounding regions (14.1 ± 2.1 g C m-2 year-1). The intermediate layer (150–400 m) also appears to be a source of organic carbon for the surrounding Levantine Sea (7.5 ± 2.8 g C m-2 year-1) mostly through the subduction of Levantine Intermediate Water following winter mixing. The Rhodes Gyre shows high interannual variability with enhanced prim
- Published
- 2022
- Full Text
- View/download PDF
41. Partitioning of Organic Production in Marine Plankton Communities: The Effects of Inorganic Nutrient Ratios and Community Composition on New Dissolved Organic Matter
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Conan, Pascal, Sondergaard, Morten, Kragh, Theis, Thingstad, Frede, Pujo-Pay, Mireille, le B. Williams, Peter J., Markager, Stiig, Cauwet, Gustave, Borch, Niels Henrik, Evans, Dylan, and Riemann, Bo
- Published
- 2007
42. Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems
- Author
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Lombard, Fabien, primary, Bourdin, Guillaume, additional, Pesant, Stéphane, additional, Agostini, Sylvain, additional, Baudena, Alberto, additional, Boissin, Emilie, additional, Cassar, Nicolas, additional, Clampitt, Megan, additional, Conan, Pascal, additional, Silva, Ophélie Da, additional, Dimier, Céline, additional, Douville, Eric, additional, Elineau, Amanda, additional, Fin, Jonathan, additional, Flores, J. Michel, additional, Ghiglione, Jean François, additional, Hume, Benjamin C.C., additional, Jalabert, Laetitia, additional, John, Seth G., additional, Kelly, Rachel L., additional, Koren, Ilan, additional, Lin, Yajuan, additional, Marie, Dominique, additional, McMinds, Ryan, additional, Mériguet, Zoé, additional, Metzl, Nicolas, additional, Paz-García, David A., additional, Pedrotti, Maria Luiza, additional, Poulain, Julie, additional, Pujo-Pay, Mireille, additional, Ras, Joséphine, additional, Reverdin, Gilles, additional, Romac, Sarah, additional, Rouan, Alice, additional, Röttinger, Eric, additional, Vardi, Assaf, additional, Voolstra, Christian R., additional, Moulin, Clémentine, additional, Iwankow, Guillaume, additional, Banaigs, Bernard, additional, Bowler, Chris, additional, de Vargas, Colomban, additional, Forcioli, Didier, additional, Furla, Paola, additional, Galand, Pierre E., additional, Gilson, Eric, additional, Reynaud, Stéphanie, additional, Sunagawa, Shinichi, additional, Sullivan, Matthew B., additional, Thomas, Olivier, additional, Troublé, Romain, additional, Thurber, Rebecca Vega, additional, Wincker, Patrick, additional, Zoccola, Didier, additional, Allemand, Denis, additional, Planes, Serge, additional, Boss, Emmanuel, additional, and Gorsky, Gaby, additional
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- 2022
- Full Text
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43. Impact of phytoplankton and bacterial production on nutrient and DOM uptake in the Rhône River plume (NW Mediterranean)
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Pujo-Pay, Mireille, Conan, Pascal, Joux, Fabien, Oriol, Louise, Naudin, Jean Jacques, and Cauwet, Gustave
- Published
- 2006
44. Evidence of Coupled Autotrophy and Heterotrophy on Plastic Biofilms and Its Influence on Surrounding Seawaters
- Author
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Conan, Pascal, primary, Philip, Léna, additional, Ortega-Retuerta, Eva, additional, Odobel, Charlène, additional, Duran, Clélia, additional, Pandin, Caroline, additional, Giraud, Carolane, additional, Meistertzheim, Anne-Leila, additional, Barbe, Valérie, additional, ter Halle, Alexandra, additional, Pujo-Pay, Mireille, additional, and Ghiglione, Jean-François, additional
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- 2022
- Full Text
- View/download PDF
45. Export of dissolved organic matter in relation to land use along a European climatic gradient
- Author
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Mattsson, Tuija, Kortelainen, Pirkko, Laubel, Anker, Evans, Dylan, Pujo-Pay, Mireille, Räike, Antti, and Conan, Pascal
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- 2009
- Full Text
- View/download PDF
46. CO - UNE INFRASTRUCTURE DE RECHERCHE FRANÇAISE POUR L'OBSERVATION DES OCÉANS ET DES LITTORAUX CÔTIERS
- Author
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Cocquempot, Lucie, Burden, Joanne, Delacourt, Christophe, Paillet, Jérôme, Raimbault, Patrick, Charria, Guillaume, Schmitt, François, Planes, Serge, Bertin, Xavier, Bertin, Stéphane, Coppola, Laurent, Testor, Pierre, Lemoine, Maud, Claquin, Pascal, Hocdé, Régis, Aucan, Jérôme, Sylvie, Fiat, Savoye, Nicolas, Conan, Pascal, Testut, Laurent, Gravelle, Médéric, WOPPELMANN, Guy, Bouchet, Vincent, Desroy, Nicolas, Laboratoire Géosciences Océan (LGO), Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie des Substances Naturelles (LCSN), Université de Limoges (UNILIM)-Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST FR CNRS 3503), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Variabilité de l'Océan et de la Glace de mer (VOG), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Biologie des mollusques marins et des écosystèmes associés (BioMEA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Ecologie marine tropicale dans les Océans Pacifique et Indien (ENTROPIE [Réunion]), Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Analytical, Environmental and Geo- Chemistry, Vrije Universiteit Brussel (VUB), Laboratoire d'Océanographie Microbienne (LOMIC), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), Shom, Ifremer, EuroGOOS AISBL, Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Institut de Recherche pour le Développement (IRD), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire océanologique de Banyuls (OOB), and Centre National de la Recherche Scientifique (CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut national des sciences de l'Univers (INSU - CNRS)
- Subjects
multidisciplinary observation ,[SDE]Environmental Sciences ,coastal ocean and seashore ,French national research infrastructure - Abstract
International audience; ILICO, a French Research Infrastructure (RI) for Coastal Ocean and Nearshore Observations is a notable example of national and pan-institutional efforts to expand knowledge of the complex processes at work within the critical coastal zone in line with the European Ocean Observing System perspective. Providing a forum for its community to work together on priority issues is a challenge, and ILICO’s organizational structure and governance are designed accordingly. Future challenges for this RI include the question of whether France’s original model of combining both land and nearshore in its study of the coastal domain is transferable to the pan-European context and how far we can go in integrating overseas and ultramarine issues.; ILICO, une infrastructure de recherche (IR) française pour l'observation de l'océan côtier et du littoral, est un exemple remarquable des efforts nationaux et pan-institutionnels visant à étendre la connaissance des processus complexes à l'œuvre dans la zone côtière critique, conformément à la perspective du système européen d'observation de l'océan. Offrir à sa communauté un forum pour travailler ensemble sur les questions prioritaires est un défi, et la structure organisationnelle et la gouvernance d'ILICO sont conçues en conséquence. Les défis à venir pour ce IR incluent la question de savoir si le modèle original de la France, qui combine à la fois la terre et le littoral dans son étude du domaine côtier, est transférable au contexte paneuropéen et jusqu'où nous pouvons aller dans l'intégration des questions ultramarines.
- Published
- 2021
47. Excretion of dissolved organic nitrogen by phytoplankton assessed by wet oxidation and 15 N tracer procedures
- Author
-
Pujo-Pay, Mireille, Conan, Pascal, and Raimbault, Patrick
- Published
- 1997
48. Influence of water mixing on the inhibitory effect of UV radiation on primary and bacterial production in Mediterranean coastal water
- Author
-
Bertoni, Roberto, Jeffrey, Wade H., Pujo-Pay, Mireille, Oriol, Louise, Conan, Pascal, and Joux, Fabien
- Published
- 2011
- Full Text
- View/download PDF
49. Relative Influence of Plastic Debris Size and Shape, Chemical Composition and Phytoplankton-Bacteria Interactions in Driving Seawater Plastisphere Abundance, Diversity and Activity
- Author
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Cheng, Jingguang, Jacquin, Justine, Conan, Pascal, Pujo-Pay, Mireille, Barbe, Valérie, George, Matthieu, Fabre, Pascale, Bruzaud, Stéphane, Ter Halle, Alexandra, Meistertzheim, Anne-Leila, Ghiglione, Jean-François, Laboratoire d'Océanographie Microbienne (LOMIC), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Biologie François JACOB (JACOB), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), Interactions moléculaires et réactivité chimique et photochimique (IMRCP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Fédération de Recherche Fluides, Energie, Réacteurs, Matériaux et Transferts (FERMAT), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), SMODD - Systèmes Moléculaires Organisés et Développement Durable (SMODD), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université Fédérale Toulouse Midi-Pyrénées
- Subjects
fungi ,lcsh:QR1-502 ,colonization ,Microbiology ,lcsh:Microbiology ,biofilm ,microbial ecotoxicology ,[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology ,biofouling ,plastic litter ,[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,plastisphere ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography ,Original Research - Abstract
International audience; The thin film of life that inhabits all plastics in the oceans, so-called “plastisphere,” has multiple effects on the fate and impacts of plastic in the marine environment. Here, we aimed to evaluate the relative influence of the plastic size, shape, chemical composition, and environmental changes such as a phytoplankton bloom in shaping the plastisphere abundance, diversity and activity. Polyethylene (PE) and polylactide acid (PLA) together with glass controls in the forms of meso-debris (18 mm diameter) and large-microplastics (LMP; 3 mm diameter), as well as small-microplastics (SMP) of 100 μm diameter with spherical or irregular shapes were immerged in seawater during 2 months. Results of bacterial abundance (confocal microscopy) and diversity (16S rRNA Illumina sequencing) indicated that the three classical biofilm colonization phases (primo-colonization after 3 days; growing phase after 10 days; maturation phase after 30 days) were not influenced by the size and the shape of the materials, even when a diatom bloom (Pseudo-nitzschia sp.) occurred after the first month of incubation. However, plastic size and shape had an effect on bacterial activity (3H leucine incorporation). Bacterial communities associated with the material of 100 μm size fraction showed the highest activity compared to all other material sizes. A mature biofilm developed within 30 days on all material types, with higher bacterial abundance on the plastics compared to glass, and distinct bacterial assemblages were detected on each material type. The diatom bloom event had a great impact on the plastisphere of all materials, resulting in a drastic change in diversity and activity. Our results showed that the plastic size and shape had relatively low influence on the plastisphere abundance, diversity, and activity, as compared to the plastic composition or the presence of a phytoplankton bloom.
- Published
- 2021
- Full Text
- View/download PDF
50. Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks
- Author
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Jacquin, Justine, primary, Callac, Nolwenn, additional, Cheng, Jingguang, additional, Giraud, Carolane, additional, Gorand, Yonko, additional, Denoual, Clement, additional, Pujo-Pay, Mireille, additional, Conan, Pascal, additional, Meistertzheim, Anne-Leila, additional, Barbe, Valerie, additional, Bruzaud, Stéphane, additional, and Ghiglione, Jean-François, additional
- Published
- 2021
- Full Text
- View/download PDF
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