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| Autores principales: | , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2014
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| Materias: | |
| Acceso en línea: | https://doi.org/10.1594/PANGAEA.839415 |
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| _version_ | 1867170978826551296 |
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| author | Paulsen, Maria Lund Riisgaard, Karen Nielsen, Torkel Gissel |
| author_facet | Paulsen, Maria Lund Riisgaard, Karen Nielsen, Torkel Gissel |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In temperate, subpolar and polar marine systems, the classical perception that bacteria are carbon limited by end of winter and respond in activity and abundance to the production of new carbon during the diatom spring bloom and post bloom. Contrary to this view, we here document an strong increase in bacterial abundance and activity (latter measured by increasing high nuclei acid (HNA) to low nuclei acid (LNA) bacteria ratio) during the winter-spring transition, where phytoplankton smaller than 10 µm dominate. Further DNA-virus were enumerated and revealed the virus to bacteria ratio (VBR) to be decreasing during winter-spring transition, indicating that the virus did not increase in number accordingly to bacteria. During repeated visits to stations in the deep Icelandic and the Norwegian Basins and the shallow Shetland Shelf (26 March to 29 April 2012), we investigated the abundance of bacteria and the succession of HNA:LNA bacteria and VBR. Water samples were collected from CTD rosette .10 L Niskin bottles and fixed in glutaraldehyde (final conc. 5%), flash frozen in liquid Nitrogen and stored at -80°C until analysis. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_839415 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Abundance of bacteria and virus during the METEOR cruise M87/1 Paulsen, Maria Lund Riisgaard, Karen Nielsen, Torkel Gissel Bacteria; Basin Scale Analysis, Synthesis and Integration; CTD/Rosette; CTD-RO; Date/Time of event; Deep Convection Cruise; DEPTH, water; EURO-BASIN; Event label; FACSCalibur flow-cytometer (Becton Dickinson); High nucleic acid bacteria/low nucleic acid bacteria ratio; Latitude of event; Longitude of event; M87/1_421-1; M87/1_424-1; M87/1_440-1; M87/1_449-1; M87/1_460-1; M87/1_466-1; M87/1_482-1; M87/1_487-1; M87/1_499-1; M87/1_516-1; M87/1_532-1; M87/1_541-1; M87/1_564-1; M87/1_572-1; M87/1_581-1; M87/1_586-1; M87/1_600-1; M87/1_608-1; M87/1_611-1; M87/1_618-1; M87/1_638-1; M87/1_641-1; M87/1_659-1; M87/1_667-1; M87/1_672-1; M87/1_679-1; M87/1_689-1; M87/1a; M87/1b; Meteor (1986); Optional event label; Station 1; Station 2; Station 3; Viral abundance; Virus/bacteria ratio In temperate, subpolar and polar marine systems, the classical perception that bacteria are carbon limited by end of winter and respond in activity and abundance to the production of new carbon during the diatom spring bloom and post bloom. Contrary to this view, we here document an strong increase in bacterial abundance and activity (latter measured by increasing high nuclei acid (HNA) to low nuclei acid (LNA) bacteria ratio) during the winter-spring transition, where phytoplankton smaller than 10 µm dominate. Further DNA-virus were enumerated and revealed the virus to bacteria ratio (VBR) to be decreasing during winter-spring transition, indicating that the virus did not increase in number accordingly to bacteria. During repeated visits to stations in the deep Icelandic and the Norwegian Basins and the shallow Shetland Shelf (26 March to 29 April 2012), we investigated the abundance of bacteria and the succession of HNA:LNA bacteria and VBR. Water samples were collected from CTD rosette .10 L Niskin bottles and fixed in glutaraldehyde (final conc. 5%), flash frozen in liquid Nitrogen and stored at -80°C until analysis. |
| title | Abundance of bacteria and virus during the METEOR cruise M87/1 |
| topic | Bacteria; Basin Scale Analysis, Synthesis and Integration; CTD/Rosette; CTD-RO; Date/Time of event; Deep Convection Cruise; DEPTH, water; EURO-BASIN; Event label; FACSCalibur flow-cytometer (Becton Dickinson); High nucleic acid bacteria/low nucleic acid bacteria ratio; Latitude of event; Longitude of event; M87/1_421-1; M87/1_424-1; M87/1_440-1; M87/1_449-1; M87/1_460-1; M87/1_466-1; M87/1_482-1; M87/1_487-1; M87/1_499-1; M87/1_516-1; M87/1_532-1; M87/1_541-1; M87/1_564-1; M87/1_572-1; M87/1_581-1; M87/1_586-1; M87/1_600-1; M87/1_608-1; M87/1_611-1; M87/1_618-1; M87/1_638-1; M87/1_641-1; M87/1_659-1; M87/1_667-1; M87/1_672-1; M87/1_679-1; M87/1_689-1; M87/1a; M87/1b; Meteor (1986); Optional event label; Station 1; Station 2; Station 3; Viral abundance; Virus/bacteria ratio |
| url | https://doi.org/10.1594/PANGAEA.839415 |