English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/173440
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
DC FieldValueLanguage
dc.contributor.authorGuixa-Boixareu, Núria-
dc.contributor.authorVaqué, Dolors-
dc.contributor.authorGasol, Josep M.-
dc.contributor.authorSánchez-Cámara, Jaime-
dc.contributor.authorPedrós-Alió, Carlos-
dc.identifierdoi: 10.1016/S0967-0645(01)00126-6-
dc.identifierissn: 0967-0645-
dc.identifiere-issn: 1879-0100-
dc.identifier.citationDeep-Sea Research Part II: Topical Studies in Oceanography 49(4-5): 827-845 (2002)-
dc.descriptionSpecial issue: FRUELA - A Carbon Flux Study in the Antarctic Peninsula Area.-- 19 pages, 10 figures, 4 tables-
dc.description.abstractVariability in abundance of virus-like particles (VLP), VLP decay rates and prokaryotic mortality due to viral infection were determined in three Antarctic areas: Bellingshausen Sea, Bransfield Strait and Gerlache Strait, during December 1995 and February 1996. VLP abundance showed very small spatial variability in the three areas (7 × 106- 2 × 107 VLP ml-1). VLP abundance, on the other hand, decreased one order of magnitude from the surface to the bottom, in two stations where deep vertical profiles were sampled. Low seasonal variability in VLP abundance was found when comparing each area separately. Diel VLP variability was also very low. VLP abundance showed the lowest values when solar irradiation was maximal, in two of the three stations where diel cycles were examined. Viral decay rates (VDR) were determined using KCN in two kinds of experiments. Type 1 experiments were performed in 6 stations to determine viral decay. Type 2 experiments were carried out in 2 stations to examine the influence of temperature and organic matter concentration on viral decay. VDR was not influenced by these parameters. Prokaryotic mortality due to viral infection was always higher than that due to bacterivores in the stations where both factors of prokaryotic mortality were measured. Viral infection accounted for all the prokaryotic heterotrophic production in Bellingshausen Sea and Gerlache Strait and for half of the prokaryotic heterotrophic production in Bransfield Strait. These high values of prokaryotic mortality due to viral infection are difficult to reconcile in nature, and more work is necessary to determine the mechanisms involved in the disappearance of viruses. © 2001 Elsevier Science Ltd. All rights reserved-
dc.description.sponsorshipThe present work was funded by grant ANT94-1010 from CICYT-
dc.publisherPergamon Press-
dc.titleViral distribution and activity in Antarctic waters-
dc.description.versionPeer Reviewed-
Appears in Collections:(ICM) Artículos
Files in This Item:
There are no files associated with this item.
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.