A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica)
Phytoplankton assemblages around the South Shetland Islands (SSI) were closely related to mesoscale physical features, based on high spatial resolution sampling performed during the summer of 2010. Sampling was done in 8 transects with stations 9 km apart. Phytoplankton groups were described using f...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Springer
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/101342 https://doi.org/10.1007/s00300-013-1333-5 |
id |
ftcsic:oai:digital.csic.es:10261/101342 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/101342 2024-02-11T09:56:31+01:00 A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) García Muñoz, Cristina Lubián, Luis M. García, Carlos M. Marrero-Díaz, Ángeles Sangrà, Pablo Vernet, Maria 2013-07 http://hdl.handle.net/10261/101342 https://doi.org/10.1007/s00300-013-1333-5 unknown Springer doi:10.1007/s00300-013-1333-5 issn: 0722-4060 e-issn: 1432-2056 Polar Biology 36(8): 1107-1123 (2013) http://hdl.handle.net/10261/101342 none South Shetland Islands Phytoplankton Fronts Mesoscale Water masses Small diatoms artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.1007/s00300-013-1333-5 2024-01-16T10:00:52Z Phytoplankton assemblages around the South Shetland Islands (SSI) were closely related to mesoscale physical features, based on high spatial resolution sampling performed during the summer of 2010. Sampling was done in 8 transects with stations 9 km apart. Phytoplankton groups were described using flow cytometry, FlowCAM and HPLC/CHEMTAX pigment analysis. Nanophytoplankton (2-20 μm) was predominant throughout the study area, which was dominated by small diatoms. They were distributed along the stratified waters of the SSI shelf and in the centre of the Bransfield Strait where an anticyclonic eddy was detected, established between two frontal structures [Bransfield Front and Peninsula Front (PF)]. The highest concentrations correlated with mid-to-high temperatures (1.07 °C) and mid-salinities (34.03) corresponding with Transitional Bellinghausen Water stations. Haptophytes distribution co-varied with small diatoms but also appeared in those vertical mixed stations with Transitional Zonal Water with Weddell Sea influence. A shift from smaller to larger diatoms was detected at the ice edge in the Antarctic Sound. Cryptophytes were restricted to stratified stations of the SSI shelf and those associated with the PF, while small prasinophytes were the only group occupying deeper and colder waters of the Drake Passage, beneath the Antarctic Surface Water, north of a narrow frontal region described here for the first time (Shetland Front). Phytoplankton assemblages around the SSI were strongly connected with the Bransfield Current System, supporting a clockwise circulation around the archipelago. The Bransfield Current System components are permanent structures during the austral summer suggesting that the distribution of phytoplankton, which responds to these structures, must also be a quasi-permanent feature. © 2013 Springer-Verlag Berlin Heidelberg. This work was supported by the CTM2008-06343-C02-02/ANT project from the Spanish Ministry of Science and Education. C.G-M.’s work was supported by a predoctoral ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Bransfield Strait Drake Passage Polar Biology South Shetland Islands Weddell Sea Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Sound ENVELOPE(-56.500,-56.500,-63.500,-63.500) Austral Bransfield Strait Drake Passage South Shetland Islands The Antarctic Weddell Weddell Sea Polar Biology 36 8 1107 1123 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
South Shetland Islands Phytoplankton Fronts Mesoscale Water masses Small diatoms |
spellingShingle |
South Shetland Islands Phytoplankton Fronts Mesoscale Water masses Small diatoms García Muñoz, Cristina Lubián, Luis M. García, Carlos M. Marrero-Díaz, Ángeles Sangrà, Pablo Vernet, Maria A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
topic_facet |
South Shetland Islands Phytoplankton Fronts Mesoscale Water masses Small diatoms |
description |
Phytoplankton assemblages around the South Shetland Islands (SSI) were closely related to mesoscale physical features, based on high spatial resolution sampling performed during the summer of 2010. Sampling was done in 8 transects with stations 9 km apart. Phytoplankton groups were described using flow cytometry, FlowCAM and HPLC/CHEMTAX pigment analysis. Nanophytoplankton (2-20 μm) was predominant throughout the study area, which was dominated by small diatoms. They were distributed along the stratified waters of the SSI shelf and in the centre of the Bransfield Strait where an anticyclonic eddy was detected, established between two frontal structures [Bransfield Front and Peninsula Front (PF)]. The highest concentrations correlated with mid-to-high temperatures (1.07 °C) and mid-salinities (34.03) corresponding with Transitional Bellinghausen Water stations. Haptophytes distribution co-varied with small diatoms but also appeared in those vertical mixed stations with Transitional Zonal Water with Weddell Sea influence. A shift from smaller to larger diatoms was detected at the ice edge in the Antarctic Sound. Cryptophytes were restricted to stratified stations of the SSI shelf and those associated with the PF, while small prasinophytes were the only group occupying deeper and colder waters of the Drake Passage, beneath the Antarctic Surface Water, north of a narrow frontal region described here for the first time (Shetland Front). Phytoplankton assemblages around the SSI were strongly connected with the Bransfield Current System, supporting a clockwise circulation around the archipelago. The Bransfield Current System components are permanent structures during the austral summer suggesting that the distribution of phytoplankton, which responds to these structures, must also be a quasi-permanent feature. © 2013 Springer-Verlag Berlin Heidelberg. This work was supported by the CTM2008-06343-C02-02/ANT project from the Spanish Ministry of Science and Education. C.G-M.’s work was supported by a predoctoral ... |
format |
Article in Journal/Newspaper |
author |
García Muñoz, Cristina Lubián, Luis M. García, Carlos M. Marrero-Díaz, Ángeles Sangrà, Pablo Vernet, Maria |
author_facet |
García Muñoz, Cristina Lubián, Luis M. García, Carlos M. Marrero-Díaz, Ángeles Sangrà, Pablo Vernet, Maria |
author_sort |
García Muñoz, Cristina |
title |
A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
title_short |
A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
title_full |
A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
title_fullStr |
A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
title_full_unstemmed |
A mesoscale study of phytoplankton assemblages around the South Shetland Islands (Antarctica) |
title_sort |
mesoscale study of phytoplankton assemblages around the south shetland islands (antarctica) |
publisher |
Springer |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/101342 https://doi.org/10.1007/s00300-013-1333-5 |
long_lat |
ENVELOPE(-56.500,-56.500,-63.500,-63.500) |
geographic |
Antarctic Antarctic Sound Austral Bransfield Strait Drake Passage South Shetland Islands The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Sound Austral Bransfield Strait Drake Passage South Shetland Islands The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Bransfield Strait Drake Passage Polar Biology South Shetland Islands Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Bransfield Strait Drake Passage Polar Biology South Shetland Islands Weddell Sea |
op_relation |
doi:10.1007/s00300-013-1333-5 issn: 0722-4060 e-issn: 1432-2056 Polar Biology 36(8): 1107-1123 (2013) http://hdl.handle.net/10261/101342 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s00300-013-1333-5 |
container_title |
Polar Biology |
container_volume |
36 |
container_issue |
8 |
container_start_page |
1107 |
op_container_end_page |
1123 |
_version_ |
1790603777821114368 |