Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring
11 pages, 7 figures, 3 tables A station located in the Gerlache Strait (Antarctic Peninsula) was sampled during early spring to determine the vertical distribution of marine planktonic archaea and to further describe the dynamic environment where they live. Chlorophyll concentration indicated that s...
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Online Access: | http://hdl.handle.net/10261/243295 https://doi.org/10.4319/lo.1998.43.4.0607 |
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ftcsic:oai:digital.csic.es:10261/243295 2024-02-11T09:56:31+01:00 Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring Massana, Ramon Taylor, Lance T. Murray, Alison Wu, Key Y. Jeffrey, W.H. DeLong, Edward F. 1998-06 http://hdl.handle.net/10261/243295 https://doi.org/10.4319/lo.1998.43.4.0607 en eng Association for the Sciences of Limnology and Oceanography Publisher's version https://doi.org/10.4319/lo.1998.43.4.0607 No Limnology and Oceanography 43(4): 607-617 (1998) 0024-3590 http://hdl.handle.net/10261/243295 doi:10.4319/lo.1998.43.4.0607 open artÃculo http://purl.org/coar/resource_type/c_6501 1998 ftcsic https://doi.org/10.4319/lo.1998.43.4.0607 2024-01-16T11:09:49Z 11 pages, 7 figures, 3 tables A station located in the Gerlache Strait (Antarctic Peninsula) was sampled during early spring to determine the vertical distribution of marine planktonic archaea and to further describe the dynamic environment where they live. Chlorophyll concentration indicated that sampling occurred during the early stages of austral spring algal development. As expected, prokaryote abundance was higher at surface than at depth, and prokaryotic activity estimated by leucine incorporation was low at the surface and extremely low at 500 m. The relative abundance of planktonic archaeal, eucaryal, and bacterial ribosomal RNA was determined by quantitative rRNA hybridization, and the performance of two different universal probes used to normalize group-specific probe hybridization response was compared. Archaeal rRNA was detected in all samples analyzed, and was more abundant at depth (up to 25% of total rRNA) than at the surface. In both years, the archaeal signal decreased during the sampling period, particularly at surface. Most of the archaeal signal was attributable to group I archaea, affiliated with the kingdom Crenarchaeota. Planktonic euryarchaeotes (group II archaea) showed a larger contribution to the archaeal assemblage in surface waters than at depth. In total, our results verify that planktonic archaea are dynamic and abundant components in marine picoplankton assemblages of the Antarctic Peninsula Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Austral Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) The Antarctic Limnology and Oceanography 43 4 607 617 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
11 pages, 7 figures, 3 tables A station located in the Gerlache Strait (Antarctic Peninsula) was sampled during early spring to determine the vertical distribution of marine planktonic archaea and to further describe the dynamic environment where they live. Chlorophyll concentration indicated that sampling occurred during the early stages of austral spring algal development. As expected, prokaryote abundance was higher at surface than at depth, and prokaryotic activity estimated by leucine incorporation was low at the surface and extremely low at 500 m. The relative abundance of planktonic archaeal, eucaryal, and bacterial ribosomal RNA was determined by quantitative rRNA hybridization, and the performance of two different universal probes used to normalize group-specific probe hybridization response was compared. Archaeal rRNA was detected in all samples analyzed, and was more abundant at depth (up to 25% of total rRNA) than at the surface. In both years, the archaeal signal decreased during the sampling period, particularly at surface. Most of the archaeal signal was attributable to group I archaea, affiliated with the kingdom Crenarchaeota. Planktonic euryarchaeotes (group II archaea) showed a larger contribution to the archaeal assemblage in surface waters than at depth. In total, our results verify that planktonic archaea are dynamic and abundant components in marine picoplankton assemblages of the Antarctic Peninsula Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Massana, Ramon Taylor, Lance T. Murray, Alison Wu, Key Y. Jeffrey, W.H. DeLong, Edward F. |
spellingShingle |
Massana, Ramon Taylor, Lance T. Murray, Alison Wu, Key Y. Jeffrey, W.H. DeLong, Edward F. Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
author_facet |
Massana, Ramon Taylor, Lance T. Murray, Alison Wu, Key Y. Jeffrey, W.H. DeLong, Edward F. |
author_sort |
Massana, Ramon |
title |
Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
title_short |
Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
title_full |
Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
title_fullStr |
Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
title_full_unstemmed |
Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring |
title_sort |
vertical distribution and temporal variation of marine planktonic archaea in the gerlache strait, antarctica, during early spring |
publisher |
Association for the Sciences of Limnology and Oceanography |
publishDate |
1998 |
url |
http://hdl.handle.net/10261/243295 https://doi.org/10.4319/lo.1998.43.4.0607 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) |
geographic |
Antarctic Antarctic Peninsula Austral Gerlache Gerlache Strait The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral Gerlache Gerlache Strait The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
Publisher's version https://doi.org/10.4319/lo.1998.43.4.0607 No Limnology and Oceanography 43(4): 607-617 (1998) 0024-3590 http://hdl.handle.net/10261/243295 doi:10.4319/lo.1998.43.4.0607 |
op_rights |
open |
op_doi |
https://doi.org/10.4319/lo.1998.43.4.0607 |
container_title |
Limnology and Oceanography |
container_volume |
43 |
container_issue |
4 |
container_start_page |
607 |
op_container_end_page |
617 |
_version_ |
1790603747282386944 |