Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina

Autores
Maidana, Nora Irene; Aponte, Gustavo A.; Fey, Michael; Schäbitz, F.; Morales, E.A.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two new diatom species, Cyclostephanos salsae and Placoneis patagonica found in plankton, superfi cial sediments and quaternary lacustrine sediment samples from Laguna Cháltel, Southern Argentina, are described. The detailed morphology of these two taxa is examined using both light (LM) and scanning electron microscopy (SEM). The main morphological features that distinguish C. salsae sp. nov. are the raised central area without fultoportulae and with scattered areolae, and the presence of some interstriae bifurcated on the valve mantle, bearing one fultoportulae in one of the forks. The variable, sometimes asymmetrical outline and the irregularly spaced central striae are the main morphological features of P. patagonica sp. nov. The relationships of these two new taxa with morphologically similar species and their ecological affi nities are discussed.
Fil: Maidana, Nora Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
Fil: Aponte, Gustavo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
Fil: Fey, Michael. Universitat Bremen; Alemania
Fil: Schäbitz, F.. University of Cologne; Alemania
Fil: Morales, E.A.. Universidade de Évora; Portugal
Materia
Bacillariophyta
Centric Diatoms
Crater Lake
Holocene
Paleolimnology
Sediments
Pennate Diatoms
Santa Cruz Province
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63835
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63835
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, ArgentinaMaidana, Nora IreneAponte, Gustavo A.Fey, MichaelSchäbitz, F.Morales, E.A.BacillariophytaCentric DiatomsCrater LakeHolocenePaleolimnologySedimentsPennate DiatomsSanta Cruz ProvinceSouth Americahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Two new diatom species, Cyclostephanos salsae and Placoneis patagonica found in plankton, superfi cial sediments and quaternary lacustrine sediment samples from Laguna Cháltel, Southern Argentina, are described. The detailed morphology of these two taxa is examined using both light (LM) and scanning electron microscopy (SEM). The main morphological features that distinguish C. salsae sp. nov. are the raised central area without fultoportulae and with scattered areolae, and the presence of some interstriae bifurcated on the valve mantle, bearing one fultoportulae in one of the forks. The variable, sometimes asymmetrical outline and the irregularly spaced central striae are the main morphological features of P. patagonica sp. nov. The relationships of these two new taxa with morphologically similar species and their ecological affi nities are discussed.Fil: Maidana, Nora Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; ArgentinaFil: Aponte, Gustavo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; ArgentinaFil: Fey, Michael. Universitat Bremen; AlemaniaFil: Schäbitz, F.. University of Cologne; AlemaniaFil: Morales, E.A.. Universidade de Évora; PortugalGebruder Borntraeger2018-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63835Maidana, Nora Irene; Aponte, Gustavo A.; Fey, Michael; Schäbitz, F.; Morales, E.A.; Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina; Gebruder Borntraeger; Nova Hedwigia, Beihefte; 146; 1-2018; 89-1021438-9134CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/1438-9134/2017/089info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/nova_suppl/detail/146/88950/Cyclostephanos_salsae_and_Placoneis_patagonica_two?af=crossrefinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:19Zoai:ri.conicet.gov.ar:11336/63835instacron: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 09:40:19.744CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
title Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
spellingShingle Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
Maidana, Nora Irene
Bacillariophyta
Centric Diatoms
Crater Lake
Holocene
Paleolimnology
Sediments
Pennate Diatoms
Santa Cruz Province
South America
title_short Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
title_full Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
title_fullStr Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
title_full_unstemmed Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
title_sort Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina
dc.creator.none.fl_str_mv Maidana, Nora Irene
Aponte, Gustavo A.
Fey, Michael
Schäbitz, F.
Morales, E.A.
author Maidana, Nora Irene
author_facet Maidana, Nora Irene
Aponte, Gustavo A.
Fey, Michael
Schäbitz, F.
Morales, E.A.
author_role author
author2 Aponte, Gustavo A.
Fey, Michael
Schäbitz, F.
Morales, E.A.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bacillariophyta
Centric Diatoms
Crater Lake
Holocene
Paleolimnology
Sediments
Pennate Diatoms
Santa Cruz Province
South America
topic Bacillariophyta
Centric Diatoms
Crater Lake
Holocene
Paleolimnology
Sediments
Pennate Diatoms
Santa Cruz Province
South America
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Two new diatom species, Cyclostephanos salsae and Placoneis patagonica found in plankton, superfi cial sediments and quaternary lacustrine sediment samples from Laguna Cháltel, Southern Argentina, are described. The detailed morphology of these two taxa is examined using both light (LM) and scanning electron microscopy (SEM). The main morphological features that distinguish C. salsae sp. nov. are the raised central area without fultoportulae and with scattered areolae, and the presence of some interstriae bifurcated on the valve mantle, bearing one fultoportulae in one of the forks. The variable, sometimes asymmetrical outline and the irregularly spaced central striae are the main morphological features of P. patagonica sp. nov. The relationships of these two new taxa with morphologically similar species and their ecological affi nities are discussed.
Fil: Maidana, Nora Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
Fil: Aponte, Gustavo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
Fil: Fey, Michael. Universitat Bremen; Alemania
Fil: Schäbitz, F.. University of Cologne; Alemania
Fil: Morales, E.A.. Universidade de Évora; Portugal
description Two new diatom species, Cyclostephanos salsae and Placoneis patagonica found in plankton, superfi cial sediments and quaternary lacustrine sediment samples from Laguna Cháltel, Southern Argentina, are described. The detailed morphology of these two taxa is examined using both light (LM) and scanning electron microscopy (SEM). The main morphological features that distinguish C. salsae sp. nov. are the raised central area without fultoportulae and with scattered areolae, and the presence of some interstriae bifurcated on the valve mantle, bearing one fultoportulae in one of the forks. The variable, sometimes asymmetrical outline and the irregularly spaced central striae are the main morphological features of P. patagonica sp. nov. The relationships of these two new taxa with morphologically similar species and their ecological affi nities are discussed.
publishDate 2018
dc.date.none.fl_str_mv 2018-01
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/11336/63835
Maidana, Nora Irene; Aponte, Gustavo A.; Fey, Michael; Schäbitz, F.; Morales, E.A.; Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina; Gebruder Borntraeger; Nova Hedwigia, Beihefte; 146; 1-2018; 89-102
1438-9134
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63835
identifier_str_mv Maidana, Nora Irene; Aponte, Gustavo A.; Fey, Michael; Schäbitz, F.; Morales, E.A.; Cyclostephanos salsae and Placoneis patagonica, two new diatoms (Bacillariophyta) from Laguna Cháltel in southern Patagonia, Argentina; Gebruder Borntraeger; Nova Hedwigia, Beihefte; 146; 1-2018; 89-102
1438-9134
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1127/1438-9134/2017/089
info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/nova_suppl/detail/146/88950/Cyclostephanos_salsae_and_Placoneis_patagonica_two?af=crossref
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Gebruder Borntraeger
publisher.none.fl_str_mv Gebruder Borntraeger
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
_version_ 1844613276097314816
score 13.070432

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