Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region
The distribution of marine Crenarchaeota Group I, marine Euryarchaeota Group II and some major groups of Bacteria (SAR 11, Roseobacter, Gammaproteobacteria and Bacteroidetes) was investigated in the North Atlantic water column (surface to 2000 m depth) along a transect from the coastal waters of the...
Published in: | Aquatic Microbial Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | http://hdl.handle.net/10553/846 https://doi.org/10.3354/ame01156 |
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ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/846 2023-05-15T14:00:50+02:00 Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region Baltar González, Federico Arístegui, Javier Gasol, Josep M. Hernández-León, Santiago Herndl, Gerhard J. Herndl, Gerhard Baltar, Federico Gasol, Josep M Aristegui, Javier 23476314200 7006816204 7003299234 6701465678 7005513845 Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar 1232580 227201 97985 489706 99734 2018-03-01T13:41:41Z http://hdl.handle.net/10553/846 https://doi.org/10.3354/ame01156 eng eng Aquatic Microbial Ecology 0948-3055 2034 http://hdl.handle.net/10553/846 doi:10.3354/ame01156 38549170387 000252478500006 533747 -;2728;-;1255;- 74 63 50 WOS:000252478500006 B-1513-2013 C-3260-2012 B-1709-2008 D-5833-2013 -;2728;-;1255;- info:eu-repo/semantics/openAccess Aquatic Microbial Ecology[ISSN 0948-3055],v. 50, p. 63-74 Procariotas Plancton Bacterias marinas Article info:eu-repo/semantics/article 2018 ftunivlaspalmas https://doi.org/10.3354/ame01156 2019-12-11T00:07:19Z The distribution of marine Crenarchaeota Group I, marine Euryarchaeota Group II and some major groups of Bacteria (SAR 11, Roseobacter, Gammaproteobacteria and Bacteroidetes) was investigated in the North Atlantic water column (surface to 2000 m depth) along a transect from the coastal waters of the NW African upwelling to the offshore waters of the Canary Coastal Transition Zone (CTZ). Catalyzed reporter deposition-fluorescence in situ hybridization (CARD-FISH) was used to describe the prokaryotic assemblages. Bulk picoplankton abundance and leucine incorporation were determined. Pronounced changes in prokaryotic assemblage composition were observed from the coast to the open ocean and at the deep chlorophyll maximum (DCM) with decreasing bulk heterotrophic activity. All bacterial groups decreased in absolute abundances from the coast to the open ocean; both archaeal groups increased towards the open ocean. Prokaryotic abundance and activity decreased 2 and 3 orders of magnitude, respectively, from the surface to 2000 m. Prokaryotic growth rates were high in the mesopelagic zone (~0.13 d–1), compared to other reports from the central North Atlantic. SAR11 in total picoplankton abundance decreased from 42% in the DCM to 4% at 2000 m, while marine Crenarchaeota Group I increased from 1% in the DCM to 39% in the oxygen minimum layer. A clear influence of the different intermediate water masses was observed on the bulk heterotrophic picoplankton activity, with lower leucine incorporation rates corresponding to layers where patches of Antarctic Intermediate Water were detected. Coast–ocean and surface–depth gradients in bulk prokaryotic abundance and production and assemblage composition were comparable to changes observed in basin-scale studies, pinpointing the CTZs as regions of strong variability in microbial diversity and metabolism. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Universidad de Las Palmas de Gran Canaria: Acceda Antarctic Aquatic Microbial Ecology 50 63 74 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
Procariotas Plancton Bacterias marinas |
spellingShingle |
Procariotas Plancton Bacterias marinas Baltar González, Federico Arístegui, Javier Gasol, Josep M. Hernández-León, Santiago Herndl, Gerhard J. Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
topic_facet |
Procariotas Plancton Bacterias marinas |
description |
The distribution of marine Crenarchaeota Group I, marine Euryarchaeota Group II and some major groups of Bacteria (SAR 11, Roseobacter, Gammaproteobacteria and Bacteroidetes) was investigated in the North Atlantic water column (surface to 2000 m depth) along a transect from the coastal waters of the NW African upwelling to the offshore waters of the Canary Coastal Transition Zone (CTZ). Catalyzed reporter deposition-fluorescence in situ hybridization (CARD-FISH) was used to describe the prokaryotic assemblages. Bulk picoplankton abundance and leucine incorporation were determined. Pronounced changes in prokaryotic assemblage composition were observed from the coast to the open ocean and at the deep chlorophyll maximum (DCM) with decreasing bulk heterotrophic activity. All bacterial groups decreased in absolute abundances from the coast to the open ocean; both archaeal groups increased towards the open ocean. Prokaryotic abundance and activity decreased 2 and 3 orders of magnitude, respectively, from the surface to 2000 m. Prokaryotic growth rates were high in the mesopelagic zone (~0.13 d–1), compared to other reports from the central North Atlantic. SAR11 in total picoplankton abundance decreased from 42% in the DCM to 4% at 2000 m, while marine Crenarchaeota Group I increased from 1% in the DCM to 39% in the oxygen minimum layer. A clear influence of the different intermediate water masses was observed on the bulk heterotrophic picoplankton activity, with lower leucine incorporation rates corresponding to layers where patches of Antarctic Intermediate Water were detected. Coast–ocean and surface–depth gradients in bulk prokaryotic abundance and production and assemblage composition were comparable to changes observed in basin-scale studies, pinpointing the CTZs as regions of strong variability in microbial diversity and metabolism. |
author2 |
Herndl, Gerhard Baltar, Federico Gasol, Josep M Aristegui, Javier 23476314200 7006816204 7003299234 6701465678 7005513845 Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar 1232580 227201 97985 489706 99734 |
format |
Article in Journal/Newspaper |
author |
Baltar González, Federico Arístegui, Javier Gasol, Josep M. Hernández-León, Santiago Herndl, Gerhard J. |
author_facet |
Baltar González, Federico Arístegui, Javier Gasol, Josep M. Hernández-León, Santiago Herndl, Gerhard J. |
author_sort |
Baltar González, Federico |
title |
Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
title_short |
Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
title_full |
Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
title_fullStr |
Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
title_full_unstemmed |
Strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
title_sort |
strong coast-ocean and surface-depth gradients in prokaryotic assemblage structure and activity in a coastal transition zone region |
publishDate |
2018 |
url |
http://hdl.handle.net/10553/846 https://doi.org/10.3354/ame01156 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic |
op_source |
Aquatic Microbial Ecology[ISSN 0948-3055],v. 50, p. 63-74 |
op_relation |
Aquatic Microbial Ecology 0948-3055 2034 http://hdl.handle.net/10553/846 doi:10.3354/ame01156 38549170387 000252478500006 533747 -;2728;-;1255;- 74 63 50 WOS:000252478500006 B-1513-2013 C-3260-2012 B-1709-2008 D-5833-2013 -;2728;-;1255;- |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/ame01156 |
container_title |
Aquatic Microbial Ecology |
container_volume |
50 |
container_start_page |
63 |
op_container_end_page |
74 |
_version_ |
1766270179833020416 |