Abundance of bacteria and virus during the METEOR cruise M87/1


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.

DOI https://doi.org/10.1594/PANGAEA.839415
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.839415
Creator Paulsen, Maria Lund ORCID logo; Riisgaard, Karen; Nielsen, Torkel Gissel (ORCID: 0000-0003-1057-158X)
Publisher PANGAEA
Publication Year 2014
Funding Reference Seventh Framework Programme https://doi.org/10.13039/100011102 Crossref Funder ID 264933 https://cordis.europa.eu/project/id/264933 Basin Scale Analysis, Synthesis and Integration
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 697 data points
Discipline Earth System Research
Spatial Coverage (-11.027W, 60.333S, 1.000E, 62.834N)
Temporal Coverage Begin 2012-03-26T03:43:00Z
Temporal Coverage End 2012-04-29T03:41:00Z