Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina
- Autores
- Candel, Maria Soledad; Radi, Taoufik; de Vernal, Anne; Bujalesky, Gustavo Gabriel
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Palynological analyses of 22 surface sediment samples from the Beagle Channel, Tierra del Fuego, Argentina, were performed in order to investigate the distribution of dinocyst assemblages and other aquatic palynomorphs and to explore their relationships with sea-surface conditions, which are regionally characterized by cold and low salinity conditions (4-9. °C and 27-33.5, respectively). Results show relatively low dinocyst concentrations (253 to 5568. cysts/g) and species diversity (19 taxa identified). The assemblages are mostly composed of Protoperidiniaceae and appear typical of a marginal marine environment with surface waters characterized by low to moderate salinity and high nutrient content due to river inputs. The assemblages are thus compatible with the occurrence of freshwater to brackish water taxa Botryococcus braunii, Botryococcus sp., Polyasterias sp., Halodinium sp., and Radiosperma corbiferum. The dinocyst assemblages are dominated by Brigantedinium spp., Echinidinium spp. and Selenopemphix quanta accompanied by cysts of Pentapharsodinium dalei, Islandinium minutum, Votadinium spinosum, Polykrikos kofoidii and Polykrikos schwartzii. The assemblages from the Beagle Channel show similarities with those of high latitude regions of the Northern Hemisphere. However, some taxa, which were exclusively reported from relatively warm environments in the Northern Hemisphere, occur in relatively high percentages in the Beagle Channel (e.g. Echinidinium delicatum and Votadinium spinosum). The absence of Selenopemphix antarctica in the Beagle Channel is consistent with its known ecological affinities, since it characterizes environments marked by seasonal sea-ice cover.
Fil: Candel, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Radi, Taoufik. Université du Québec a Montreal; Canadá. McGill University; Canadá
Fil: de Vernal, Anne. Université du Québec a Montreal; Canadá
Fil: Bujalesky, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina - Materia
-
Aquatic Palynomorphs
Argentina
Beagle Channel
Dinocyst Assemblages
Distribution
South America - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/57704
Ver los metadatos del registro completo
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network_name_str |
CONICET Digital (CONICET) |
spelling |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern ArgentinaCandel, Maria SoledadRadi, Taoufikde Vernal, AnneBujalesky, Gustavo GabrielAquatic PalynomorphsArgentinaBeagle ChannelDinocyst AssemblagesDistributionSouth Americahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Palynological analyses of 22 surface sediment samples from the Beagle Channel, Tierra del Fuego, Argentina, were performed in order to investigate the distribution of dinocyst assemblages and other aquatic palynomorphs and to explore their relationships with sea-surface conditions, which are regionally characterized by cold and low salinity conditions (4-9. °C and 27-33.5, respectively). Results show relatively low dinocyst concentrations (253 to 5568. cysts/g) and species diversity (19 taxa identified). The assemblages are mostly composed of Protoperidiniaceae and appear typical of a marginal marine environment with surface waters characterized by low to moderate salinity and high nutrient content due to river inputs. The assemblages are thus compatible with the occurrence of freshwater to brackish water taxa Botryococcus braunii, Botryococcus sp., Polyasterias sp., Halodinium sp., and Radiosperma corbiferum. The dinocyst assemblages are dominated by Brigantedinium spp., Echinidinium spp. and Selenopemphix quanta accompanied by cysts of Pentapharsodinium dalei, Islandinium minutum, Votadinium spinosum, Polykrikos kofoidii and Polykrikos schwartzii. The assemblages from the Beagle Channel show similarities with those of high latitude regions of the Northern Hemisphere. However, some taxa, which were exclusively reported from relatively warm environments in the Northern Hemisphere, occur in relatively high percentages in the Beagle Channel (e.g. Echinidinium delicatum and Votadinium spinosum). The absence of Selenopemphix antarctica in the Beagle Channel is consistent with its known ecological affinities, since it characterizes environments marked by seasonal sea-ice cover.Fil: Candel, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Radi, Taoufik. Université du Québec a Montreal; Canadá. McGill University; CanadáFil: de Vernal, Anne. Université du Québec a Montreal; CanadáFil: Bujalesky, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaElsevier Science2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57704Candel, Maria Soledad; Radi, Taoufik; de Vernal, Anne; Bujalesky, Gustavo Gabriel; Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina; Elsevier Science; Marine Micropaleontology; 96-97; 12-2012; 1-120377-8398CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0377839812000631info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marmicro.2012.06.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:07Zoai:ri.conicet.gov.ar:11336/57704instacron: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 10:41:07.337CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
title |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
spellingShingle |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina Candel, Maria Soledad Aquatic Palynomorphs Argentina Beagle Channel Dinocyst Assemblages Distribution South America |
title_short |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
title_full |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
title_fullStr |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
title_full_unstemmed |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
title_sort |
Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina |
dc.creator.none.fl_str_mv |
Candel, Maria Soledad Radi, Taoufik de Vernal, Anne Bujalesky, Gustavo Gabriel |
author |
Candel, Maria Soledad |
author_facet |
Candel, Maria Soledad Radi, Taoufik de Vernal, Anne Bujalesky, Gustavo Gabriel |
author_role |
author |
author2 |
Radi, Taoufik de Vernal, Anne Bujalesky, Gustavo Gabriel |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Aquatic Palynomorphs Argentina Beagle Channel Dinocyst Assemblages Distribution South America |
topic |
Aquatic Palynomorphs Argentina Beagle Channel Dinocyst Assemblages Distribution South America |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Palynological analyses of 22 surface sediment samples from the Beagle Channel, Tierra del Fuego, Argentina, were performed in order to investigate the distribution of dinocyst assemblages and other aquatic palynomorphs and to explore their relationships with sea-surface conditions, which are regionally characterized by cold and low salinity conditions (4-9. °C and 27-33.5, respectively). Results show relatively low dinocyst concentrations (253 to 5568. cysts/g) and species diversity (19 taxa identified). The assemblages are mostly composed of Protoperidiniaceae and appear typical of a marginal marine environment with surface waters characterized by low to moderate salinity and high nutrient content due to river inputs. The assemblages are thus compatible with the occurrence of freshwater to brackish water taxa Botryococcus braunii, Botryococcus sp., Polyasterias sp., Halodinium sp., and Radiosperma corbiferum. The dinocyst assemblages are dominated by Brigantedinium spp., Echinidinium spp. and Selenopemphix quanta accompanied by cysts of Pentapharsodinium dalei, Islandinium minutum, Votadinium spinosum, Polykrikos kofoidii and Polykrikos schwartzii. The assemblages from the Beagle Channel show similarities with those of high latitude regions of the Northern Hemisphere. However, some taxa, which were exclusively reported from relatively warm environments in the Northern Hemisphere, occur in relatively high percentages in the Beagle Channel (e.g. Echinidinium delicatum and Votadinium spinosum). The absence of Selenopemphix antarctica in the Beagle Channel is consistent with its known ecological affinities, since it characterizes environments marked by seasonal sea-ice cover. Fil: Candel, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina Fil: Radi, Taoufik. Université du Québec a Montreal; Canadá. McGill University; Canadá Fil: de Vernal, Anne. Université du Québec a Montreal; Canadá Fil: Bujalesky, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina |
description |
Palynological analyses of 22 surface sediment samples from the Beagle Channel, Tierra del Fuego, Argentina, were performed in order to investigate the distribution of dinocyst assemblages and other aquatic palynomorphs and to explore their relationships with sea-surface conditions, which are regionally characterized by cold and low salinity conditions (4-9. °C and 27-33.5, respectively). Results show relatively low dinocyst concentrations (253 to 5568. cysts/g) and species diversity (19 taxa identified). The assemblages are mostly composed of Protoperidiniaceae and appear typical of a marginal marine environment with surface waters characterized by low to moderate salinity and high nutrient content due to river inputs. The assemblages are thus compatible with the occurrence of freshwater to brackish water taxa Botryococcus braunii, Botryococcus sp., Polyasterias sp., Halodinium sp., and Radiosperma corbiferum. The dinocyst assemblages are dominated by Brigantedinium spp., Echinidinium spp. and Selenopemphix quanta accompanied by cysts of Pentapharsodinium dalei, Islandinium minutum, Votadinium spinosum, Polykrikos kofoidii and Polykrikos schwartzii. The assemblages from the Beagle Channel show similarities with those of high latitude regions of the Northern Hemisphere. However, some taxa, which were exclusively reported from relatively warm environments in the Northern Hemisphere, occur in relatively high percentages in the Beagle Channel (e.g. Echinidinium delicatum and Votadinium spinosum). The absence of Selenopemphix antarctica in the Beagle Channel is consistent with its known ecological affinities, since it characterizes environments marked by seasonal sea-ice cover. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12 |
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/11336/57704 Candel, Maria Soledad; Radi, Taoufik; de Vernal, Anne; Bujalesky, Gustavo Gabriel; Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina; Elsevier Science; Marine Micropaleontology; 96-97; 12-2012; 1-12 0377-8398 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/57704 |
identifier_str_mv |
Candel, Maria Soledad; Radi, Taoufik; de Vernal, Anne; Bujalesky, Gustavo Gabriel; Distribution of dinoflagellate cysts and other aquatic palynomorphs in surface sediments from the Beagle Channel, Southern Argentina; Elsevier Science; Marine Micropaleontology; 96-97; 12-2012; 1-12 0377-8398 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0377839812000631 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marmicro.2012.06.009 |
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 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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1844614441078882304 |
score |
13.070432 |