Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography
Extant morphotypes of Distephanus speculum (Ehrenberg 1839) Heckel 1887, analysed from a latitudinal transect of surface water samples and one hydrological station in the Southern Ocean, display a distinct biogeographic distribution pattern. Morphometric analyses performed on a total of 250 specimen...
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ftunivmilanobic:oai:boa.unimib.it:10281/21669 2024-04-14T08:19:55+00:00 Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography MALINVERNO, ELISA Malinverno, E 2010 http://hdl.handle.net/10281/21669 https://doi.org/10.1016/j.marmicro.2010.09.002 eng eng Elsevier country:AMSTERDAM info:eu-repo/semantics/altIdentifier/wos/WOS:000285233100007 volume:77 issue:3-4 firstpage:154 lastpage:174 journal:MARINE MICROPALEONTOLOGY http://hdl.handle.net/10281/21669 doi:10.1016/j.marmicro.2010.09.002 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78649333681 Biogeography Distephanus speculum Morphometry Morphotype Polar Front Southern Ocean Var. monospicatu GEO/01 - PALEONTOLOGIA E PALEOECOLOGIA info:eu-repo/semantics/article 2010 ftunivmilanobic https://doi.org/10.1016/j.marmicro.2010.09.002 2024-03-21T16:33:49Z Extant morphotypes of Distephanus speculum (Ehrenberg 1839) Heckel 1887, analysed from a latitudinal transect of surface water samples and one hydrological station in the Southern Ocean, display a distinct biogeographic distribution pattern. Morphometric analyses performed on a total of 250 specimens from 12 selected samples reveal that some morphotypes, separated through secondary morphological characters, can also be separated on a size basis. Small-sized specimens include D. speculum speculum, D. speculum var. monospicatus (var. nov.) and D. speculum bispicatus; medium-sized specimens are represented by D. speculum f. coronata and D. speculum minutus - coronatid and large-sized specimens correspond to D. speculum group B of Tsutsui et al. (2009).The ecological value of the morphological and morphometric characters is discussed here in relation with the latitudinal distribution of the morphotypes. A new taxon, D. speculum var. monospicatus (var. nov.), is described. © 2010 Elsevier B.V. Article in Journal/Newspaper Southern Ocean Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) Southern Ocean Marine Micropaleontology 77 3-4 154 174 |
institution |
Open Polar |
collection |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
op_collection_id |
ftunivmilanobic |
language |
English |
topic |
Biogeography Distephanus speculum Morphometry Morphotype Polar Front Southern Ocean Var. monospicatu GEO/01 - PALEONTOLOGIA E PALEOECOLOGIA |
spellingShingle |
Biogeography Distephanus speculum Morphometry Morphotype Polar Front Southern Ocean Var. monospicatu GEO/01 - PALEONTOLOGIA E PALEOECOLOGIA MALINVERNO, ELISA Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
topic_facet |
Biogeography Distephanus speculum Morphometry Morphotype Polar Front Southern Ocean Var. monospicatu GEO/01 - PALEONTOLOGIA E PALEOECOLOGIA |
description |
Extant morphotypes of Distephanus speculum (Ehrenberg 1839) Heckel 1887, analysed from a latitudinal transect of surface water samples and one hydrological station in the Southern Ocean, display a distinct biogeographic distribution pattern. Morphometric analyses performed on a total of 250 specimens from 12 selected samples reveal that some morphotypes, separated through secondary morphological characters, can also be separated on a size basis. Small-sized specimens include D. speculum speculum, D. speculum var. monospicatus (var. nov.) and D. speculum bispicatus; medium-sized specimens are represented by D. speculum f. coronata and D. speculum minutus - coronatid and large-sized specimens correspond to D. speculum group B of Tsutsui et al. (2009).The ecological value of the morphological and morphometric characters is discussed here in relation with the latitudinal distribution of the morphotypes. A new taxon, D. speculum var. monospicatus (var. nov.), is described. © 2010 Elsevier B.V. |
author2 |
Malinverno, E |
format |
Article in Journal/Newspaper |
author |
MALINVERNO, ELISA |
author_facet |
MALINVERNO, ELISA |
author_sort |
MALINVERNO, ELISA |
title |
Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
title_short |
Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
title_full |
Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
title_fullStr |
Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
title_full_unstemmed |
Extant morphotypes of Distephanus speculum (Silicoflagellata) from the Australian sector of the Southern Ocean: Morphology, morphometry and biogeography |
title_sort |
extant morphotypes of distephanus speculum (silicoflagellata) from the australian sector of the southern ocean: morphology, morphometry and biogeography |
publisher |
Elsevier |
publishDate |
2010 |
url |
http://hdl.handle.net/10281/21669 https://doi.org/10.1016/j.marmicro.2010.09.002 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000285233100007 volume:77 issue:3-4 firstpage:154 lastpage:174 journal:MARINE MICROPALEONTOLOGY http://hdl.handle.net/10281/21669 doi:10.1016/j.marmicro.2010.09.002 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78649333681 |
op_doi |
https://doi.org/10.1016/j.marmicro.2010.09.002 |
container_title |
Marine Micropaleontology |
container_volume |
77 |
container_issue |
3-4 |
container_start_page |
154 |
op_container_end_page |
174 |
_version_ |
1796298062257192960 |