Importance of N2-Fixation on the Productivity at the North-Western Azores Current/Front System, and the Abundance of Diazotrophic Unicellular Cyanobacteria
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{"title"=>"Importance of N2-fixation on the productivity at the north-western Azores current/front system, and the abundance of diazotrophic unicellular cyanobacteria", "type"=>"journal", "authors"=>[{"first_name"=>"Virginie", "last_name"=>"Riou", "scopus_author_id"=>"23968426000"}, {"first_name"=>"Debany", "last_name"=>"Fonseca-Batista", "scopus_author_id"=>"56543736500"}, {"first_name"=>"Arnout", "last_name"=>"Roukaerts", "scopus_author_id"=>"56458790800"}, {"first_name"=>"Isabelle C.", "last_name"=>"Biegala", "scopus_author_id"=>"6603243934"}, {"first_name"=>"Shree Ram", "last_name"=>"Prakya", "scopus_author_id"=>"57188718742"}, {"first_name"=>"Clara Magalhães", "last_name"=>"Loureiro", "scopus_author_id"=>"24401510800"}, {"first_name"=>"Mariana", "last_name"=>"Santos", "scopus_author_id"=>"25931877600"}, {"first_name"=>"Angel E.", "last_name"=>"Muniz-Piniella", "scopus_author_id"=>"57188716196"}, {"first_name"=>"Mara", "last_name"=>"Schmiing", "scopus_author_id"=>"35230750600"}, {"first_name"=>"Marc", "last_name"=>"Elskens", "scopus_author_id"=>"6603831524"}, {"first_name"=>"Natacha", "last_name"=>"Brion", "scopus_author_id"=>"7005289265"}, {"first_name"=>"M. Ana", "last_name"=>"Martins", "scopus_author_id"=>"57188728578"}, {"first_name"=>"Frank", "last_name"=>"Dehairs", "scopus_author_id"=>"7003910656"}], "year"=>2016, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "pui"=>"609034802", "doi"=>"10.1371/journal.pone.0150827", "sgr"=>"84962499709", "scopus"=>"2-s2.0-84962499709", "isbn"=>"10.1371/journal.pone.0150827", "pmid"=>"26958844"}, "id"=>"b9108519-b2a1-3ec8-95c0-332ff0519f50", "abstract"=>"To understand the impact of the northwestern Azores Current Front (NW-AzC/AzF) system on HCO3--and N2-fixation activities and unicellular diazotrophic cyanobacteria (UCYN) distribution, we combined geochemical and biological approaches from the oligotrophic surface to upper mesopelagic waters. N2-fixation was observed to sustain 45-85% of the HCO3--fixation in the picoplanktonic fraction performing 47% of the total C-fixation at the deep chlorophyll maximum north and south of the AzF. N2-fixation rates as high as 10.9 μmol N m-3 d-1 and surface nitrate δ15N as low as 2.7‰ were found in the warm (18-24°C), most saline (36.5-37.0) and least productive waters south of the AzF, where UCYN were the least abundant. However, picoplanktonic UCYN abundances up to 55 cells mL-1 were found at 45-200m depths in the coolest nutrient-rich waters north of the AzF. In this area, N2-fixation rates up to 4.5 μmol N m-3 d-1 were detected, associated with depth-integrated H13CO3--fixation rates at least 50% higher than observed south of the AzF. The numerous eddies generated at the NW-AzC/AzF seem to enhance exchanges of plankton between water masses, as well as vertical and horizontal diapycnal diffusion of nutrients, whose increase probably enhances the growth of diazotrophs and the productivity of C-fixers.", "link"=>"http://www.mendeley.com/research/importance-n2fixation-productivity-northwestern-azores-currentfront-system-abundance-diazotrophic-un", "reader_count"=>21, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Student > Doctoral Student"=>1, "Researcher"=>6, "Student > Ph. D. Student"=>5, "Other"=>3, "Student > Master"=>2, "Professor"=>1, "Professor > Associate Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Student > Doctoral Student"=>1, "Researcher"=>6, "Student > Ph. D. Student"=>5, "Other"=>3, "Student > Master"=>2, "Professor"=>1, "Professor > Associate Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Environmental Science"=>3, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>9, "Chemistry"=>2, "Computer Science"=>1, "Earth and Planetary Sciences"=>3}, "reader_count_by_subdiscipline"=>{"Chemistry"=>{"Chemistry"=>2}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>9}, "Computer Science"=>{"Computer Science"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>3}}, "reader_count_by_country"=>{"France"=>1, "Australia"=>1}, "group_count"=>2}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/4830127"], "description"=>"<p>Nitrate δ<sup>15</sup>N (A), δ<sup>18</sup>O (B) depth profiles and relationship between δ<sup>18</sup>O and δ<sup>15</sup>N (C): open symbols mark southern stations (A: squares, B: circles, C: diamonds), filled symbols indicate northern stations (D: diamonds, E: squares). Circled data: exceptionally low δ<sup>18</sup>O and δ<sup>15</sup>N, respectively indicating low nitrate assimilation and the influence of ‘new’ nitrate derived from N<sub>2</sub>-fixation, at stations B (250m and 350m) and C (200m).</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107680, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g005", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Nitrate_N_and_O_isotopic_signatures_/3107680", "title"=>"Nitrate N and O isotopic signatures.", "pos_in_sequence"=>6, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830130"], "description"=>"<p>(A) C-fixation rates (μmol m<sup>-3</sup> d<sup>-1</sup>), and (B) longitudinal cross-sections of POC (μmol L<sup>-1</sup>) depending on the particle size fraction (left: <3 μm; right: >3 μm). The Azores Front position is marked by a bold line.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107683, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g006", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Distribution_of_Carbon_fixation_and_Organic_Carbon_in_3_m_and_3_m_large_particles_/3107683", "title"=>"Distribution of Carbon fixation and Organic Carbon in <3 μm and >3 μm large particles.", "pos_in_sequence"=>7, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830136"], "description"=>"<p>Top panels: <3 μm particles; bottom panels: >3μm particles. For each station and depth, N<sub>2</sub>-fixation rates (μmol m<sup>-3</sup> d<sup>-1</sup>) measured in each size fraction are indicated in blue (d.l. indicate measurements below the detection limit). Black bars indicate free pico-UCYN, white bars for associated pico-UCYN and grey bars for large pico- or nano-UCYN (in cell mL<sup>-1</sup>).</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107689, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g007", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/N_sub_2_sub_fixation_rates_and_UCYN_abundance_in_3_m_and_3_m_particles_/3107689", "title"=>"N<sub>2</sub>-fixation rates and UCYN abundance in <3 μm and >3 μm particles.", "pos_in_sequence"=>8, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830142"], "description"=>"<p>Significant correlations between C-, N<sub>2</sub>-fixations, UCYN abundance and physical-chemical conditions.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107695, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.t001", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Significant_correlations_between_C_N_sub_2_sub_fixations_UCYN_abundance_and_physical_chemical_conditions_/3107695", "title"=>"Significant correlations between C-, N<sub>2</sub>-fixations, UCYN abundance and physical-chemical conditions.", "pos_in_sequence"=>9, "defined_type"=>3, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830085", "https://ndownloader.figshare.com/files/4830109", "https://ndownloader.figshare.com/files/4830106", "https://ndownloader.figshare.com/files/4830103", "https://ndownloader.figshare.com/files/4830100", "https://ndownloader.figshare.com/files/4830097", "https://ndownloader.figshare.com/files/4830094", "https://ndownloader.figshare.com/files/4830091", "https://ndownloader.figshare.com/files/4830088", "https://ndownloader.figshare.com/files/4830112"], "description"=>"<div><p>To understand the impact of the northwestern Azores Current Front (NW-AzC/AzF) system on HCO<sub>3</sub><sup>−</sup>-and N<sub>2</sub>-fixation activities and unicellular diazotrophic cyanobacteria (UCYN) distribution, we combined geochemical and biological approaches from the oligotrophic surface to upper mesopelagic waters. N<sub>2</sub>-fixation was observed to sustain 45–85% of the HCO<sub>3</sub><sup>−</sup>-fixation in the picoplanktonic fraction performing 47% of the total C-fixation at the deep chlorophyll maximum north and south of the AzF. N<sub>2</sub>-fixation rates as high as 10.9 μmol N m<sup>-3</sup> d<sup>-1</sup> and surface nitrate δ<sup>15</sup>N as low as 2.7‰ were found in the warm (18–24°C), most saline (36.5–37.0) and least productive waters south of the AzF, where UCYN were the least abundant. However, picoplanktonic UCYN abundances up to 55 cells mL<sup>-1</sup> were found at 45–200m depths in the coolest nutrient-rich waters north of the AzF. In this area, N<sub>2</sub>-fixation rates up to 4.5 μmol N m<sup>-3</sup> d<sup>-1</sup> were detected, associated with depth-integrated H<sup>13</sup>CO<sub>3</sub><sup>−</sup>-fixation rates at least 50% higher than observed south of the AzF. The numerous eddies generated at the NW-AzC/AzF seem to enhance exchanges of plankton between water masses, as well as vertical and horizontal diapycnal diffusion of nutrients, whose increase probably enhances the growth of diazotrophs and the productivity of C-fixers.</p></div>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107665, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0150827.s001", "https://dx.doi.org/10.1371/journal.pone.0150827.s009", "https://dx.doi.org/10.1371/journal.pone.0150827.s008", "https://dx.doi.org/10.1371/journal.pone.0150827.s007", "https://dx.doi.org/10.1371/journal.pone.0150827.s006", "https://dx.doi.org/10.1371/journal.pone.0150827.s005", "https://dx.doi.org/10.1371/journal.pone.0150827.s004", "https://dx.doi.org/10.1371/journal.pone.0150827.s003", "https://dx.doi.org/10.1371/journal.pone.0150827.s002", "https://dx.doi.org/10.1371/journal.pone.0150827.s010"], "stats"=>{"downloads"=>1, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Importance_of_N_sub_2_sub_Fixation_on_the_Productivity_at_the_North_Western_Azores_Current_Front_System_and_the_Abundance_of_Diazotrophic_Unicellular_Cyanobacteria/3107665", "title"=>"Importance of N<sub>2</sub>-Fixation on the Productivity at the North-Western Azores Current/Front System, and the Abundance of Diazotrophic Unicellular Cyanobacteria", "pos_in_sequence"=>1, "defined_type"=>4, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830115"], "description"=>"<p>The approximate locations of currents were re-drawn from [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0150827#pone.0150827.ref010\" target=\"_blank\">10</a>,<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0150827#pone.0150827.ref015\" target=\"_blank\">15</a>]. SNAC: Southern branch of the North Atlantic Current. AzC: Azores Current. Deep MedW: Mediterranean outflow.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107668, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g001", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Map_of_the_study_area_in_the_North_Atlantic_showing_the_main_circulation_patterns_/3107668", "title"=>"Map of the study area in the North Atlantic showing the main circulation patterns.", "pos_in_sequence"=>2, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830118"], "description"=>"<p>Station locations (open circles) overlaid on AVISO altimetry-derived geostrophic currents centered between 26/07/2011 and 01/08/2011, with color scale indicating the Sea Surface Height (SSH) in m.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107671, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g002", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Sea_Surface_Height_and_geostrophic_currents_during_the_DIAPICNA_cruise_/3107671", "title"=>"Sea Surface Height and geostrophic currents during the DIAPICNA cruise.", "pos_in_sequence"=>3, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830121"], "description"=>"<p>(A) Temperature (°C) longitudinal cross-section, with the position of the Azores Front deduced from the 16°C isotherm at 200m depth (dotted lines); (B) TS diagrams for stations A-E, with overlaid σ<sub>θ</sub> density isolines. NACW: North Atlantic Central Water; 15MW: 15°C Mode Water; 18MW: 18°C Mode Water; SAIW: SubArctic Intermediate Water; MedW: Mediterranean Water; LSW: Labrador Sea Water. The black box indicates possible increased influence of Mediterranean Waters at 800–1000m in stations D and E.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107674, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g003", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Physical_parameters_monitored_along_the_DIAPICNA_cruise_track_/3107674", "title"=>"Physical parameters monitored along the DIAPICNA cruise track.", "pos_in_sequence"=>4, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830124"], "description"=>"<p>Longitudinal cross-sections of (A) nitrate concentration, (B) δ<sup>15</sup>N<sub>NO3</sub> signal, (C) PN isotopic signature and (D) Δ(15,18)—see <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0150827#pone.0150827.e002\" target=\"_blank\">eq (2)</a>. The position of the Azores Front is indicated by a dashed line, and station i.d. is given on top.</p>", "links"=>[], "tags"=>["water masses", "55 cells mL", "mol", "Diazotrophic Unicellular Cyanobacteria", "AzF", "surface nitrate δ15 N", "Azore", "HCO", "diapycnal diffusion", "mesopelagic waters", "picoplanktonic UCYN abundances", "unicellular diazotrophic cyanobacteria", "13CO", "picoplanktonic fraction", "oligotrophic surface"], "article_id"=>3107677, "categories"=>["Microbiology", "Cell Biology", "Molecular Biology", "Biotechnology", "Evolutionary Biology", "Developmental Biology", "Cancer", "Infectious Diseases", "Virology"], "users"=>["Virginie Riou", "Debany Fonseca-Batista", "Arnout Roukaerts", "Isabelle C. Biegala", "Shree Ram Prakya", "Clara Magalhães Loureiro", "Mariana Santos", "Angel E. Muniz-Piniella", "Mara Schmiing", "Marc Elskens", "Natacha Brion", "M. Ana Martins", "Frank Dehairs"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0150827.g004", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Geochemical_tracers_of_N_sub_2_sub_fixation_along_the_DIAPICNA_cruise_transect_/3107677", "title"=>"Geochemical tracers of N<sub>2</sub>-fixation along the DIAPICNA cruise transect.", "pos_in_sequence"=>5, "defined_type"=>1, "published_date"=>"2016-03-09 08:55:07"}

PMC Usage Stats | Further Information

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  • {"unique-ip"=>"4", "full-text"=>"3", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"10", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"8", "full-text"=>"7", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}
  • {"unique-ip"=>"13", "full-text"=>"12", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"8"}
  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"9"}
  • {"unique-ip"=>"1", "full-text"=>"1", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"10"}
  • {"unique-ip"=>"3", "full-text"=>"4", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"12"}
  • {"unique-ip"=>"12", "full-text"=>"10", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"2"}
  • {"unique-ip"=>"8", "full-text"=>"7", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"10", "cited-by"=>"0", "year"=>"2020", "month"=>"3"}
  • {"unique-ip"=>"4", "full-text"=>"5", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"4"}
  • {"unique-ip"=>"5", "full-text"=>"4", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"5"}
  • {"unique-ip"=>"9", "full-text"=>"8", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2020", "month"=>"6"}

Relative Metric

{"start_date"=>"2016-01-01T00:00:00Z", "end_date"=>"2016-12-31T00:00:00Z", "subject_areas"=>[]}
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