Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution

Autores
Cefarelli, Adrián Oscar; Ferrario, Martha Elba; Vernet, María
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
There are several recent studies about life in relation to Antarctic icebergs. Diatom communities have been found living on submerged vertical walls of icebergs. In this study we complement and extend the taxonomic and ecological information on diatoms associated with icebergs. Two expeditions were carried out during winter 2008 and fall 2009. Samples were collected in situ from Antarctic icebergs and in adjacent waters, with a remote operated vehicle and with a mesh net, respectively, and subsequently analyzed using light and electron microscopy. Thalassioneis signyensis, dominant species growing on the icebergs? flanks, provided substrate for other diatoms, mainly Synedropsis lata var. angustata, S. recta, Fragilaria cf. islandica var. adeliae, Attheya gaussii, Navicula cf. perminuta, Amphora sp. and Nitzschia spp. New morphological and ecological characteristics are given for S. lata var. angustata, S. recta and A. gaussii. We report also Biddulphia alternans and Coscinodiscus concinnus for the first time in Antarctic waters. Similar to sea ice algae, the term sympagic is used to describe the habitat of these diatom communities. Taxa uncommon to marine plankton, either benthic, epiphytic or freshwater forms, occurred in waters under icebergs? influence: Amphora sp., B. alternans, Cocconeis spp., Delphineis minutissima, Licmophora gracilis, Luticola cf. australomutica, Opephora sp., Pinnularia spp., Plagiogramma sp., Psammodictyon panduriforme var. minor, Pseudogomphonema kamtschaticum, Rhaphoneis amphiceros, S. recta and T. signyensis. Our results support the hypothesis that species associated with icebergs exchange between several habitats: coastal, benthos, plankton, periphyton, ice shelves, icebergs and sea ice, making icebergs acting as a physical agents to transport and distribute organisms in between these habitats.
Fil: Cefarelli, Adrián Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferrario, Martha Elba. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Vernet, María. University of California at San Diego; Estados Unidos
Materia
Diatom
Iceberg
Antarctica
Sympagic
Phytoplankton
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:11336/112282
Acceder
id CONICETDig_45493d4763a4dae817a295806c6e77e1
oai_identifier_str oai:ri.conicet.gov.ar:11336/112282
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distributionCefarelli, Adrián OscarFerrario, Martha ElbaVernet, MaríaDiatomIcebergAntarcticaSympagicPhytoplanktonhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1There are several recent studies about life in relation to Antarctic icebergs. Diatom communities have been found living on submerged vertical walls of icebergs. In this study we complement and extend the taxonomic and ecological information on diatoms associated with icebergs. Two expeditions were carried out during winter 2008 and fall 2009. Samples were collected in situ from Antarctic icebergs and in adjacent waters, with a remote operated vehicle and with a mesh net, respectively, and subsequently analyzed using light and electron microscopy. Thalassioneis signyensis, dominant species growing on the icebergs? flanks, provided substrate for other diatoms, mainly Synedropsis lata var. angustata, S. recta, Fragilaria cf. islandica var. adeliae, Attheya gaussii, Navicula cf. perminuta, Amphora sp. and Nitzschia spp. New morphological and ecological characteristics are given for S. lata var. angustata, S. recta and A. gaussii. We report also Biddulphia alternans and Coscinodiscus concinnus for the first time in Antarctic waters. Similar to sea ice algae, the term sympagic is used to describe the habitat of these diatom communities. Taxa uncommon to marine plankton, either benthic, epiphytic or freshwater forms, occurred in waters under icebergs? influence: Amphora sp., B. alternans, Cocconeis spp., Delphineis minutissima, Licmophora gracilis, Luticola cf. australomutica, Opephora sp., Pinnularia spp., Plagiogramma sp., Psammodictyon panduriforme var. minor, Pseudogomphonema kamtschaticum, Rhaphoneis amphiceros, S. recta and T. signyensis. Our results support the hypothesis that species associated with icebergs exchange between several habitats: coastal, benthos, plankton, periphyton, ice shelves, icebergs and sea ice, making icebergs acting as a physical agents to transport and distribute organisms in between these habitats.Fil: Cefarelli, Adrián Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ferrario, Martha Elba. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Vernet, María. University of California at San Diego; Estados UnidosSpringer2015-10info: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/11336/112282Cefarelli, Adrián Oscar; Ferrario, Martha Elba; Vernet, María; Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution; Springer; Polar Biology; 39; 3; 10-2015; 443-4590722-4060CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1791-zinfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00300-015-1791-zinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:55:08Zoai:ri.conicet.gov.ar:11336/112282instacron: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:34982025-09-17 11:55:09.112CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
title Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
spellingShingle Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
Cefarelli, Adrián Oscar
Diatom
Iceberg
Antarctica
Sympagic
Phytoplankton
title_short Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
title_full Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
title_fullStr Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
title_full_unstemmed Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
title_sort Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution
dc.creator.none.fl_str_mv Cefarelli, Adrián Oscar
Ferrario, Martha Elba
Vernet, María
author Cefarelli, Adrián Oscar
author_facet Cefarelli, Adrián Oscar
Ferrario, Martha Elba
Vernet, María
author_role author
author2 Ferrario, Martha Elba
Vernet, María
author2_role author
author
dc.subject.none.fl_str_mv Diatom
Iceberg
Antarctica
Sympagic
Phytoplankton
topic Diatom
Iceberg
Antarctica
Sympagic
Phytoplankton
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv There are several recent studies about life in relation to Antarctic icebergs. Diatom communities have been found living on submerged vertical walls of icebergs. In this study we complement and extend the taxonomic and ecological information on diatoms associated with icebergs. Two expeditions were carried out during winter 2008 and fall 2009. Samples were collected in situ from Antarctic icebergs and in adjacent waters, with a remote operated vehicle and with a mesh net, respectively, and subsequently analyzed using light and electron microscopy. Thalassioneis signyensis, dominant species growing on the icebergs? flanks, provided substrate for other diatoms, mainly Synedropsis lata var. angustata, S. recta, Fragilaria cf. islandica var. adeliae, Attheya gaussii, Navicula cf. perminuta, Amphora sp. and Nitzschia spp. New morphological and ecological characteristics are given for S. lata var. angustata, S. recta and A. gaussii. We report also Biddulphia alternans and Coscinodiscus concinnus for the first time in Antarctic waters. Similar to sea ice algae, the term sympagic is used to describe the habitat of these diatom communities. Taxa uncommon to marine plankton, either benthic, epiphytic or freshwater forms, occurred in waters under icebergs? influence: Amphora sp., B. alternans, Cocconeis spp., Delphineis minutissima, Licmophora gracilis, Luticola cf. australomutica, Opephora sp., Pinnularia spp., Plagiogramma sp., Psammodictyon panduriforme var. minor, Pseudogomphonema kamtschaticum, Rhaphoneis amphiceros, S. recta and T. signyensis. Our results support the hypothesis that species associated with icebergs exchange between several habitats: coastal, benthos, plankton, periphyton, ice shelves, icebergs and sea ice, making icebergs acting as a physical agents to transport and distribute organisms in between these habitats.
Fil: Cefarelli, Adrián Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferrario, Martha Elba. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Vernet, María. University of California at San Diego; Estados Unidos
description There are several recent studies about life in relation to Antarctic icebergs. Diatom communities have been found living on submerged vertical walls of icebergs. In this study we complement and extend the taxonomic and ecological information on diatoms associated with icebergs. Two expeditions were carried out during winter 2008 and fall 2009. Samples were collected in situ from Antarctic icebergs and in adjacent waters, with a remote operated vehicle and with a mesh net, respectively, and subsequently analyzed using light and electron microscopy. Thalassioneis signyensis, dominant species growing on the icebergs? flanks, provided substrate for other diatoms, mainly Synedropsis lata var. angustata, S. recta, Fragilaria cf. islandica var. adeliae, Attheya gaussii, Navicula cf. perminuta, Amphora sp. and Nitzschia spp. New morphological and ecological characteristics are given for S. lata var. angustata, S. recta and A. gaussii. We report also Biddulphia alternans and Coscinodiscus concinnus for the first time in Antarctic waters. Similar to sea ice algae, the term sympagic is used to describe the habitat of these diatom communities. Taxa uncommon to marine plankton, either benthic, epiphytic or freshwater forms, occurred in waters under icebergs? influence: Amphora sp., B. alternans, Cocconeis spp., Delphineis minutissima, Licmophora gracilis, Luticola cf. australomutica, Opephora sp., Pinnularia spp., Plagiogramma sp., Psammodictyon panduriforme var. minor, Pseudogomphonema kamtschaticum, Rhaphoneis amphiceros, S. recta and T. signyensis. Our results support the hypothesis that species associated with icebergs exchange between several habitats: coastal, benthos, plankton, periphyton, ice shelves, icebergs and sea ice, making icebergs acting as a physical agents to transport and distribute organisms in between these habitats.
publishDate 2015
dc.date.none.fl_str_mv 2015-10
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/11336/112282
Cefarelli, Adrián Oscar; Ferrario, Martha Elba; Vernet, María; Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution; Springer; Polar Biology; 39; 3; 10-2015; 443-459
0722-4060
CONICET Digital
CONICET
url http://hdl.handle.net/11336/112282
identifier_str_mv Cefarelli, Adrián Oscar; Ferrario, Martha Elba; Vernet, María; Diatoms (Bacillariophyceae) associated with free-drifting Antarctic icebergs: taxonomy and distribution; Springer; Polar Biology; 39; 3; 10-2015; 443-459
0722-4060
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1791-z
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00300-015-1791-z
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
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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_ 1843606893254148096
score 13.001348

Publicaciones similares