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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Hingamp P.; Iudicone D.; Brum J. R.; Zingone A.; +49 Authors

    Agulhas rings provide the principal route for ocean waters to circulate from the Indo-Pacific to the Atlantic basin. Their influence on global ocean circulation is well known, but their role in plankton transport is largely unexplored. We show that, although the coarse taxonomic structure of plankton communities is continuous across the Agulhas choke point, South Atlantic plankton diversity is altered compared with Indian Ocean source populations. Modeling and in situ sampling of a young Agulhas ring indicate that strong vertical mixing drives complex nitrogen cycling, shaping community metabolism and biogeochemical signatures as the ring and associated plankton transit westward. The peculiar local environment inside Agulhas rings may provide a selective mechanism contributing to the limited dispersal of Indian Ocean plankton populations into the Atlantic.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    OpenAIRE
    2015
    Data sources: OpenAIRE
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      OpenAIRE
      2015
      Data sources: OpenAIRE
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: de Vargas, Colomban; Probert, Ian; Carmichael, Margaux; Poulain, Julie; +51 Authors

    Accompanying material, text, data and figures for the article de Vargas et al., 'Eukaryotic plankton diversity in the sunlit ocean', Science 348, 1261605 (2015), doi: 10.1126/science.1261605

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    OpenAIRE
    Other ORP type . 2015
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      OpenAIRE
      Other ORP type . 2015
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Le Bescot, Noan;

    Les dinoflagellés forment un groupe complexe de protistes avec une grande diversité de morphologies, physiologies, et cycles de vies qui leur confèrent une forte capacité d'adaptation à l'ensemble des milieux (marins et dulçaquicoles) et habitats (pélagiques et benthiques) aquatiques rendant difficile l¿étude de leur diversité et de leur écologie. L'objectif de cette thèse a été la recherche de patrons globaux de biodiversité et de structuration des communautés de dinoflagellés pélagiques marins à l'échelle planétaire. Un protocole d'échantillonnage morphogénétique, couvrant la totalité de leur spectre de taille et une partie importante de leurs variabilités spatio-temporelles, a été développé (Tara-Oceans). Divers outils d'acquisition automatique à haut débit des données ont été testés. La diversité, l'abondance relative et la distribution géographique des espèces du genre Neoceratium ont été évaluées en mer Méditerranée par FlowCAM. Une étude de la structuration de la biodiversité a été réalisée par metabarcoding de l¿ADNr 18S (fragment V9). La construction d'une base de séquences ADNr de référence (DinR2) a permis l¿assignation taxonomique des metabarcodes environnementaux. L¿approche par metabarcode révèle une diversité remarquable et insoupçonnée des pico-dinoflagellés (<5µm) et que, indépendamment de l'écosystème étudié et de la période d'échantillonnage, l¿abondance des différents ordres dépend essentiellement de la taille (pico-, nano-, micro-, et meso-plancton). La structuration des communautés de dinoflagellés de différentes fractions de tailles de la zone photique a été confrontée à certains facteurs environnementaux ouvrant des pistes de recherche prometteuses Dinoflagellates form a complex group of protists with a variety of morphologies, physiologies, and life cycles that give them a strong adaptation to all aquatic environments (marine and freshwater) and habitats (pelagic and benthic) making difficult to study their diversity and ecology. The objective of this thesis was the search for global biodiversity patterns and community structure of marine pelagic dinoflagellates across the world?s oceans. A morphogenetic sampling protocol, covering the entire spectrum of their size and an important part of their spatio-temporal variability, was developed (Tara-Oceans). Various tools for an automatic acquisition broadband data were tested. Diversity, relative abundance and geographical distribution of the genus Neoceratium were evaluated by FlowCAM in Mediterranean Sea. A study of the structure of biodiversity was conducted by metabarcoding with 18S rDNA (V9 fragment). Building a base of rDNA reference sequences (DinR2) allowed the taxonomic assignment of environmental metabarcodes. The metabarcode approach reveals a remarkable and unexpected diversity of pico-dinoflagellates (<5?m) and, regardless of the studied ecosystem and the sampling period, that abundance of different levels mainly depends to the size fractions (pico-, nano-, micro- and meso- plankton). Structuring of dinoflagellates communities in different size fractions of the photic zone was facing to some environmental factors and opens promising avenues for research

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    OpenAIRE
    2014
    Data sources: OpenAIRE
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      OpenAIRE
      2014
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Hingamp P.; Iudicone D.; Brum J. R.; Zingone A.; +49 Authors

    Agulhas rings provide the principal route for ocean waters to circulate from the Indo-Pacific to the Atlantic basin. Their influence on global ocean circulation is well known, but their role in plankton transport is largely unexplored. We show that, although the coarse taxonomic structure of plankton communities is continuous across the Agulhas choke point, South Atlantic plankton diversity is altered compared with Indian Ocean source populations. Modeling and in situ sampling of a young Agulhas ring indicate that strong vertical mixing drives complex nitrogen cycling, shaping community metabolism and biogeochemical signatures as the ring and associated plankton transit westward. The peculiar local environment inside Agulhas rings may provide a selective mechanism contributing to the limited dispersal of Indian Ocean plankton populations into the Atlantic.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    OpenAIRE
    2015
    Data sources: OpenAIRE
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      OpenAIRE
      2015
      Data sources: OpenAIRE
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: de Vargas, Colomban; Probert, Ian; Carmichael, Margaux; Poulain, Julie; +51 Authors

    Accompanying material, text, data and figures for the article de Vargas et al., 'Eukaryotic plankton diversity in the sunlit ocean', Science 348, 1261605 (2015), doi: 10.1126/science.1261605

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    OpenAIRE
    Other ORP type . 2015
    Data sources: OpenAIRE
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      OpenAIRE
      Other ORP type . 2015
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Le Bescot, Noan;

    Les dinoflagellés forment un groupe complexe de protistes avec une grande diversité de morphologies, physiologies, et cycles de vies qui leur confèrent une forte capacité d'adaptation à l'ensemble des milieux (marins et dulçaquicoles) et habitats (pélagiques et benthiques) aquatiques rendant difficile l¿étude de leur diversité et de leur écologie. L'objectif de cette thèse a été la recherche de patrons globaux de biodiversité et de structuration des communautés de dinoflagellés pélagiques marins à l'échelle planétaire. Un protocole d'échantillonnage morphogénétique, couvrant la totalité de leur spectre de taille et une partie importante de leurs variabilités spatio-temporelles, a été développé (Tara-Oceans). Divers outils d'acquisition automatique à haut débit des données ont été testés. La diversité, l'abondance relative et la distribution géographique des espèces du genre Neoceratium ont été évaluées en mer Méditerranée par FlowCAM. Une étude de la structuration de la biodiversité a été réalisée par metabarcoding de l¿ADNr 18S (fragment V9). La construction d'une base de séquences ADNr de référence (DinR2) a permis l¿assignation taxonomique des metabarcodes environnementaux. L¿approche par metabarcode révèle une diversité remarquable et insoupçonnée des pico-dinoflagellés (<5µm) et que, indépendamment de l'écosystème étudié et de la période d'échantillonnage, l¿abondance des différents ordres dépend essentiellement de la taille (pico-, nano-, micro-, et meso-plancton). La structuration des communautés de dinoflagellés de différentes fractions de tailles de la zone photique a été confrontée à certains facteurs environnementaux ouvrant des pistes de recherche prometteuses Dinoflagellates form a complex group of protists with a variety of morphologies, physiologies, and life cycles that give them a strong adaptation to all aquatic environments (marine and freshwater) and habitats (pelagic and benthic) making difficult to study their diversity and ecology. The objective of this thesis was the search for global biodiversity patterns and community structure of marine pelagic dinoflagellates across the world?s oceans. A morphogenetic sampling protocol, covering the entire spectrum of their size and an important part of their spatio-temporal variability, was developed (Tara-Oceans). Various tools for an automatic acquisition broadband data were tested. Diversity, relative abundance and geographical distribution of the genus Neoceratium were evaluated by FlowCAM in Mediterranean Sea. A study of the structure of biodiversity was conducted by metabarcoding with 18S rDNA (V9 fragment). Building a base of rDNA reference sequences (DinR2) allowed the taxonomic assignment of environmental metabarcodes. The metabarcode approach reveals a remarkable and unexpected diversity of pico-dinoflagellates (<5?m) and, regardless of the studied ecosystem and the sampling period, that abundance of different levels mainly depends to the size fractions (pico-, nano-, micro- and meso- plankton). Structuring of dinoflagellates communities in different size fractions of the photic zone was facing to some environmental factors and opens promising avenues for research

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
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    OpenAIRE
    2014
    Data sources: OpenAIRE
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ OpenAIREarrow_drop_down
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      OpenAIRE
      2014
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