Viral distribution and activity in Antarctic waters
Special issue: FRUELA - A Carbon Flux Study in the Antarctic Peninsula Area.-- 19 pages, 10 figures, 4 tables Variability 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, Bransfi...
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ftcsic:oai:digital.csic.es:10261/173440 2024-02-11T09:55:59+01:00 Viral distribution and activity in Antarctic waters Guixa-Boixareu, Núria Vaqué, Dolors Gasol, Josep M. Sánchez-Cámara, Jaime Pedrós-Alió, Carlos 2002 http://hdl.handle.net/10261/173440 https://doi.org/10.1016/S0967-0645(01)00126-6 unknown Pergamon Press https://doi.org/10.1016/S0967-0645(01)00126-6 Sí doi:10.1016/S0967-0645(01)00126-6 issn: 0967-0645 e-issn: 1879-0100 Deep-Sea Research Part II: Topical Studies in Oceanography 49(4-5): 827-845 (2002) http://hdl.handle.net/10261/173440 none artículo http://purl.org/coar/resource_type/c_6501 2002 ftcsic https://doi.org/10.1016/S0967-0645(01)00126-6 2024-01-16T10:34:41Z Special issue: FRUELA - A Carbon Flux Study in the Antarctic Peninsula Area.-- 19 pages, 10 figures, 4 tables Variability 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 The present work was funded by grant ANT94-1010 from CICYT Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait Digital.CSIC (Spanish National Research Council) Antarctic The Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) Deep Sea Research Part II: Topical Studies in Oceanography 49 4-5 827 845 |
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Digital.CSIC (Spanish National Research Council) |
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Special issue: FRUELA - A Carbon Flux Study in the Antarctic Peninsula Area.-- 19 pages, 10 figures, 4 tables Variability 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 The present work was funded by grant ANT94-1010 from CICYT Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Guixa-Boixareu, Núria Vaqué, Dolors Gasol, Josep M. Sánchez-Cámara, Jaime Pedrós-Alió, Carlos |
spellingShingle |
Guixa-Boixareu, Núria Vaqué, Dolors Gasol, Josep M. Sánchez-Cámara, Jaime Pedrós-Alió, Carlos Viral distribution and activity in Antarctic waters |
author_facet |
Guixa-Boixareu, Núria Vaqué, Dolors Gasol, Josep M. Sánchez-Cámara, Jaime Pedrós-Alió, Carlos |
author_sort |
Guixa-Boixareu, Núria |
title |
Viral distribution and activity in Antarctic waters |
title_short |
Viral distribution and activity in Antarctic waters |
title_full |
Viral distribution and activity in Antarctic waters |
title_fullStr |
Viral distribution and activity in Antarctic waters |
title_full_unstemmed |
Viral distribution and activity in Antarctic waters |
title_sort |
viral distribution and activity in antarctic waters |
publisher |
Pergamon Press |
publishDate |
2002 |
url |
http://hdl.handle.net/10261/173440 https://doi.org/10.1016/S0967-0645(01)00126-6 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait |
genre |
Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bellingshausen Sea Bransfield Strait |
op_relation |
https://doi.org/10.1016/S0967-0645(01)00126-6 Sí doi:10.1016/S0967-0645(01)00126-6 issn: 0967-0645 e-issn: 1879-0100 Deep-Sea Research Part II: Topical Studies in Oceanography 49(4-5): 827-845 (2002) http://hdl.handle.net/10261/173440 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/S0967-0645(01)00126-6 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
49 |
container_issue |
4-5 |
container_start_page |
827 |
op_container_end_page |
845 |
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1790599870911873024 |