Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013
The Antarctic ecosystem is one of the most sensitive world regions to the climate change, and exhibits a wide environmental variability that modifies the temporal and spatial patterns of the phytoplankton structure. The phytoplankton community and its spatial and temporal variability of Mackellar in...
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Format: | Article in Journal/Newspaper |
Language: | Spanish |
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2019
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Online Access: | https://dialnet.unirioja.es/servlet/oaiart?codigo=7141225 |
id |
ftdialnet:oai:dialnet.unirioja.es:ART0001351734 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Dialnet - Portada de revistas (Universidad de La Rioja) |
op_collection_id |
ftdialnet |
language |
Spanish |
topic |
Antarctic diatoms microplankton nanoflagellates variability Antártida diatomeas microplancton nanoflagelados variabilidad |
spellingShingle |
Antarctic diatoms microplankton nanoflagellates variability Antártida diatomeas microplancton nanoflagelados variabilidad Baylón, Maribel Hernández Becerril, David U. Indacochea, Aldo Purca, Sara Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
topic_facet |
Antarctic diatoms microplankton nanoflagellates variability Antártida diatomeas microplancton nanoflagelados variabilidad |
description |
The Antarctic ecosystem is one of the most sensitive world regions to the climate change, and exhibits a wide environmental variability that modifies the temporal and spatial patterns of the phytoplankton structure. The phytoplankton community and its spatial and temporal variability of Mackellar inlet- Admiralty bay, Antarctic, were studied in two austral summers (years 2012 and 2013). Samplings were done in 11 fixed stations at three depths (0, 10 and 20 m). Antarctic Surface Water mass was identified in the surface layer at the study area. Phytoplankton composition in the water column consisted in 40 diatoms taxa, 6 dinoflagellate taxa and various species of nanoflagellates (< 20 µm). Nanoflagellates from the Mackellar inlet included Prasinophytes, Cryptophytes and Haptophytes species. Diatoms of the microplankton fraction (20-200 µm) and nanoflagellates (< 20 µm) were in alternation during the period of this study: by summer 2012 nanoflagellates were more abundant (86 %), with diatom species of the genus Thalassiosira (11%), and by summer 2013 phytoplankton abundance was dominated by microplanktonic diatoms such as Thalassiosira delicatula (36%), Pseudo-nitzschia group delicatissima (9%), Porosira glacialis (6%), the athecate dinoflagellate Gymnodinium sp. (19%) and nanoflagellates (20%). Cell densities were lower in summer 2012 compared with those in summer 2013, where a diatom bloom occurred. Phytoplankton diversity was relatively low (< 1.97 bits⋅cell-1) in both summers. The main differences between the two sampling periods were the dominance of microplanktonic diatoms and nanoflagellates, which were probably caused by the decrease in salinity and increase in subsurface dissolved oxygen in the study area produced by ice melting in summer 2012 and 2013. El ecosistema antártico es una de las regiones del mundo más sensibles al cambio climático, y presenta amplia variabilidad ambiental que modifican los patrones espaciales y temporales de la estructura fitoplanctónica. Se estudió la comunidad del ... |
format |
Article in Journal/Newspaper |
author |
Baylón, Maribel Hernández Becerril, David U. Indacochea, Aldo Purca, Sara |
author_facet |
Baylón, Maribel Hernández Becerril, David U. Indacochea, Aldo Purca, Sara |
author_sort |
Baylón, Maribel |
title |
Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
title_short |
Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
title_full |
Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
title_fullStr |
Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
title_full_unstemmed |
Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 |
title_sort |
variabilidad espacio-temporal del fitoplancton de la ensenada mackellar, bahía almirantazgo, isla rey jorge, antártida, durante el verano austral 2012/2013 |
publishDate |
2019 |
url |
https://dialnet.unirioja.es/servlet/oaiart?codigo=7141225 |
long_lat |
ENVELOPE(-58.050,-58.050,-62.083,-62.083) ENVELOPE(-58.250,-58.250,-62.050,-62.050) ENVELOPE(-58.455,-58.455,-62.079,-62.079) ENVELOPE(-58.433,-58.433,-62.133,-62.133) ENVELOPE(-58.467,-58.467,-62.083,-62.083) ENVELOPE(-57.333,-57.333,-64.417,-64.417) ENVELOPE(-58.467,-58.467,-62.083,-62.083) |
geographic |
Antarctic The Antarctic Austral Admiralty Bay Rey Jorge Isla Rey Jorge Mackellar Almirantazgo Ensenada Mackellar Bahía Almirantazgo Mackellar Inlet |
geographic_facet |
Antarctic The Antarctic Austral Admiralty Bay Rey Jorge Isla Rey Jorge Mackellar Almirantazgo Ensenada Mackellar Bahía Almirantazgo Mackellar Inlet |
genre |
Antarc* Antarctic Antártida |
genre_facet |
Antarc* Antarctic Antártida |
op_source |
Revista de biología marina y oceanografía, ISSN 0717-3326, Vol. 54, Nº. 2, 2019, pags. 151-165 |
op_relation |
https://dialnet.unirioja.es/servlet/oaiart?codigo=7141225 (Revista) ISSN 0717-3326 |
op_rights |
LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI |
_version_ |
1766271196830105600 |
spelling |
ftdialnet:oai:dialnet.unirioja.es:ART0001351734 2023-05-15T14:01:23+02:00 Variabilidad espacio-temporal del fitoplancton de la ensenada Mackellar, Bahía Almirantazgo, Isla Rey Jorge, Antártida, durante el verano austral 2012/2013 Baylón, Maribel Hernández Becerril, David U. Indacochea, Aldo Purca, Sara 2019 application/pdf https://dialnet.unirioja.es/servlet/oaiart?codigo=7141225 spa spa https://dialnet.unirioja.es/servlet/oaiart?codigo=7141225 (Revista) ISSN 0717-3326 LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI Revista de biología marina y oceanografía, ISSN 0717-3326, Vol. 54, Nº. 2, 2019, pags. 151-165 Antarctic diatoms microplankton nanoflagellates variability Antártida diatomeas microplancton nanoflagelados variabilidad text (article) 2019 ftdialnet 2019-11-28T09:19:40Z The Antarctic ecosystem is one of the most sensitive world regions to the climate change, and exhibits a wide environmental variability that modifies the temporal and spatial patterns of the phytoplankton structure. The phytoplankton community and its spatial and temporal variability of Mackellar inlet- Admiralty bay, Antarctic, were studied in two austral summers (years 2012 and 2013). Samplings were done in 11 fixed stations at three depths (0, 10 and 20 m). Antarctic Surface Water mass was identified in the surface layer at the study area. Phytoplankton composition in the water column consisted in 40 diatoms taxa, 6 dinoflagellate taxa and various species of nanoflagellates (< 20 µm). Nanoflagellates from the Mackellar inlet included Prasinophytes, Cryptophytes and Haptophytes species. Diatoms of the microplankton fraction (20-200 µm) and nanoflagellates (< 20 µm) were in alternation during the period of this study: by summer 2012 nanoflagellates were more abundant (86 %), with diatom species of the genus Thalassiosira (11%), and by summer 2013 phytoplankton abundance was dominated by microplanktonic diatoms such as Thalassiosira delicatula (36%), Pseudo-nitzschia group delicatissima (9%), Porosira glacialis (6%), the athecate dinoflagellate Gymnodinium sp. (19%) and nanoflagellates (20%). Cell densities were lower in summer 2012 compared with those in summer 2013, where a diatom bloom occurred. Phytoplankton diversity was relatively low (< 1.97 bits⋅cell-1) in both summers. The main differences between the two sampling periods were the dominance of microplanktonic diatoms and nanoflagellates, which were probably caused by the decrease in salinity and increase in subsurface dissolved oxygen in the study area produced by ice melting in summer 2012 and 2013. El ecosistema antártico es una de las regiones del mundo más sensibles al cambio climático, y presenta amplia variabilidad ambiental que modifican los patrones espaciales y temporales de la estructura fitoplanctónica. Se estudió la comunidad del ... Article in Journal/Newspaper Antarc* Antarctic Antártida Dialnet - Portada de revistas (Universidad de La Rioja) Antarctic The Antarctic Austral Admiralty Bay Rey Jorge ENVELOPE(-58.050,-58.050,-62.083,-62.083) Isla Rey Jorge ENVELOPE(-58.250,-58.250,-62.050,-62.050) Mackellar ENVELOPE(-58.455,-58.455,-62.079,-62.079) Almirantazgo ENVELOPE(-58.433,-58.433,-62.133,-62.133) Ensenada Mackellar ENVELOPE(-58.467,-58.467,-62.083,-62.083) Bahía Almirantazgo ENVELOPE(-57.333,-57.333,-64.417,-64.417) Mackellar Inlet ENVELOPE(-58.467,-58.467,-62.083,-62.083) |