Rapid change in plankton community structure during spring along the eastern Beagle Channel

Autores
Cadaillón, Andreana Mackenna; Iachetti, Clara Margarita; Giesecke Astorga, Claudio Ricardo; Vásquez Lepio, Valeska; Malits, Andrea; Schloss, Irene Ruth
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In November 2019, a first joint Chilean–Argentinian research cruise was conducted along the eastern section of the Beagle Channel (BC). Here we present the results of the microbial plankton (2–200 μm cell size) abundance and composition analyses in relation to water masses and environmental variables, along a longitudinal transect characterized by contrasting hydrology. Plankton samples were analyzed within the photic zone along the channel and at two fixed stations during two short time series (a first one of 30 and a second one of 42 h). Results revealed a spatial zonation in the composition and structure of the plankton assemblages, related to bathymetry, water temperature and nutrient availability but also, a small-scale temporal variability due mainly to a rise in air and water temperature. The inner (westernmost) and outer sectors of the sampled area, west and east of Mackinlay Strait, respectively, were characterized by low plankton abundances, mostly dominated by nanoflagellates and some large diatoms. In contrast, the easternmost sector of BC, showed the highest total cell abundances, displaying a high diversity of small and large diatoms. Notably, in the inner BC (fixed station F1), chl-a concentrations almost doubled in 24 h, along with an increase in total plankton abundance and the dominance of small diatoms and nanoflagellates. Rapid changes in plankton relative abundance were also observed east to Mackinlay Strait. This highlights the large spatial (km) and temporal (hours to days) plankton heterogeneity along the eastern section of the BC, scales which should be considered for further sampling strategies.
Fil: Cadaillón, Andreana Mackenna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Iachetti, Clara Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Giesecke Astorga, Claudio Ricardo. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; Argentina
Fil: Vásquez Lepio, Valeska. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; Argentina
Fil: Malits, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Viena; Austria
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Ambientales y Recursos Naturales; Argentina
Materia
Microplankton
Nanoplankton
Beagle Channel
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/228789
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Rapid change in plankton community structure during spring along the eastern Beagle ChannelCadaillón, Andreana MackennaIachetti, Clara MargaritaGiesecke Astorga, Claudio RicardoVásquez Lepio, ValeskaMalits, AndreaSchloss, Irene RuthMicroplanktonNanoplanktonBeagle Channelhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In November 2019, a first joint Chilean–Argentinian research cruise was conducted along the eastern section of the Beagle Channel (BC). Here we present the results of the microbial plankton (2–200 μm cell size) abundance and composition analyses in relation to water masses and environmental variables, along a longitudinal transect characterized by contrasting hydrology. Plankton samples were analyzed within the photic zone along the channel and at two fixed stations during two short time series (a first one of 30 and a second one of 42 h). Results revealed a spatial zonation in the composition and structure of the plankton assemblages, related to bathymetry, water temperature and nutrient availability but also, a small-scale temporal variability due mainly to a rise in air and water temperature. The inner (westernmost) and outer sectors of the sampled area, west and east of Mackinlay Strait, respectively, were characterized by low plankton abundances, mostly dominated by nanoflagellates and some large diatoms. In contrast, the easternmost sector of BC, showed the highest total cell abundances, displaying a high diversity of small and large diatoms. Notably, in the inner BC (fixed station F1), chl-a concentrations almost doubled in 24 h, along with an increase in total plankton abundance and the dominance of small diatoms and nanoflagellates. Rapid changes in plankton relative abundance were also observed east to Mackinlay Strait. This highlights the large spatial (km) and temporal (hours to days) plankton heterogeneity along the eastern section of the BC, scales which should be considered for further sampling strategies.Fil: Cadaillón, Andreana Mackenna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Iachetti, Clara Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Giesecke Astorga, Claudio Ricardo. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; ArgentinaFil: Vásquez Lepio, Valeska. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; ArgentinaFil: Malits, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Viena; AustriaFil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Ambientales y Recursos Naturales; ArgentinaElsevier Science2023-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228789Cadaillón, Andreana Mackenna; Iachetti, Clara Margarita; Giesecke Astorga, Claudio Ricardo; Vásquez Lepio, Valeska ; Malits, Andrea; et al.; Rapid change in plankton community structure during spring along the eastern Beagle Channel; Elsevier Science; Journal of Marine Systems; 241; 103906; 4-5-2023; 1-320924-7963CONICET DigitalCONICETenghttps://ri.conicet.gov.ar/handle/11336/224162info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0924796323000507info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2023.103906info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:58:15Zoai:ri.conicet.gov.ar:11336/228789instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:58:16.062CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rapid change in plankton community structure during spring along the eastern Beagle Channel
title Rapid change in plankton community structure during spring along the eastern Beagle Channel
spellingShingle Rapid change in plankton community structure during spring along the eastern Beagle Channel
Cadaillón, Andreana Mackenna
Microplankton
Nanoplankton
Beagle Channel
title_short Rapid change in plankton community structure during spring along the eastern Beagle Channel
title_full Rapid change in plankton community structure during spring along the eastern Beagle Channel
title_fullStr Rapid change in plankton community structure during spring along the eastern Beagle Channel
title_full_unstemmed Rapid change in plankton community structure during spring along the eastern Beagle Channel
title_sort Rapid change in plankton community structure during spring along the eastern Beagle Channel
dc.creator.none.fl_str_mv Cadaillón, Andreana Mackenna
Iachetti, Clara Margarita
Giesecke Astorga, Claudio Ricardo
Vásquez Lepio, Valeska
Malits, Andrea
Schloss, Irene Ruth
author Cadaillón, Andreana Mackenna
author_facet Cadaillón, Andreana Mackenna
Iachetti, Clara Margarita
Giesecke Astorga, Claudio Ricardo
Vásquez Lepio, Valeska
Malits, Andrea
Schloss, Irene Ruth
author_role author
author2 Iachetti, Clara Margarita
Giesecke Astorga, Claudio Ricardo
Vásquez Lepio, Valeska
Malits, Andrea
Schloss, Irene Ruth
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Microplankton
Nanoplankton
Beagle Channel
topic Microplankton
Nanoplankton
Beagle Channel
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In November 2019, a first joint Chilean–Argentinian research cruise was conducted along the eastern section of the Beagle Channel (BC). Here we present the results of the microbial plankton (2–200 μm cell size) abundance and composition analyses in relation to water masses and environmental variables, along a longitudinal transect characterized by contrasting hydrology. Plankton samples were analyzed within the photic zone along the channel and at two fixed stations during two short time series (a first one of 30 and a second one of 42 h). Results revealed a spatial zonation in the composition and structure of the plankton assemblages, related to bathymetry, water temperature and nutrient availability but also, a small-scale temporal variability due mainly to a rise in air and water temperature. The inner (westernmost) and outer sectors of the sampled area, west and east of Mackinlay Strait, respectively, were characterized by low plankton abundances, mostly dominated by nanoflagellates and some large diatoms. In contrast, the easternmost sector of BC, showed the highest total cell abundances, displaying a high diversity of small and large diatoms. Notably, in the inner BC (fixed station F1), chl-a concentrations almost doubled in 24 h, along with an increase in total plankton abundance and the dominance of small diatoms and nanoflagellates. Rapid changes in plankton relative abundance were also observed east to Mackinlay Strait. This highlights the large spatial (km) and temporal (hours to days) plankton heterogeneity along the eastern section of the BC, scales which should be considered for further sampling strategies.
Fil: Cadaillón, Andreana Mackenna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Iachetti, Clara Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Giesecke Astorga, Claudio Ricardo. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; Argentina
Fil: Vásquez Lepio, Valeska. Universidad Austral de Chile; Chile. Centro de Investigación en Ecosistemas Marinos de Altas Latitudes; Argentina
Fil: Malits, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Viena; Austria
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Ambientales y Recursos Naturales; Argentina
description In November 2019, a first joint Chilean–Argentinian research cruise was conducted along the eastern section of the Beagle Channel (BC). Here we present the results of the microbial plankton (2–200 μm cell size) abundance and composition analyses in relation to water masses and environmental variables, along a longitudinal transect characterized by contrasting hydrology. Plankton samples were analyzed within the photic zone along the channel and at two fixed stations during two short time series (a first one of 30 and a second one of 42 h). Results revealed a spatial zonation in the composition and structure of the plankton assemblages, related to bathymetry, water temperature and nutrient availability but also, a small-scale temporal variability due mainly to a rise in air and water temperature. The inner (westernmost) and outer sectors of the sampled area, west and east of Mackinlay Strait, respectively, were characterized by low plankton abundances, mostly dominated by nanoflagellates and some large diatoms. In contrast, the easternmost sector of BC, showed the highest total cell abundances, displaying a high diversity of small and large diatoms. Notably, in the inner BC (fixed station F1), chl-a concentrations almost doubled in 24 h, along with an increase in total plankton abundance and the dominance of small diatoms and nanoflagellates. Rapid changes in plankton relative abundance were also observed east to Mackinlay Strait. This highlights the large spatial (km) and temporal (hours to days) plankton heterogeneity along the eastern section of the BC, scales which should be considered for further sampling strategies.
publishDate 2023
dc.date.none.fl_str_mv 2023-05-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/228789
Cadaillón, Andreana Mackenna; Iachetti, Clara Margarita; Giesecke Astorga, Claudio Ricardo; Vásquez Lepio, Valeska ; Malits, Andrea; et al.; Rapid change in plankton community structure during spring along the eastern Beagle Channel; Elsevier Science; Journal of Marine Systems; 241; 103906; 4-5-2023; 1-32
0924-7963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/228789
identifier_str_mv Cadaillón, Andreana Mackenna; Iachetti, Clara Margarita; Giesecke Astorga, Claudio Ricardo; Vásquez Lepio, Valeska ; Malits, Andrea; et al.; Rapid change in plankton community structure during spring along the eastern Beagle Channel; Elsevier Science; Journal of Marine Systems; 241; 103906; 4-5-2023; 1-32
0924-7963
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ri.conicet.gov.ar/handle/11336/224162
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0924796323000507
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2023.103906
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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