The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean

Qualitative and quantitative analyses of the tintinnids retrieved in surface and vertical (down to 1150 m ) samples in the Scotia, Weddell, Bransfield and Bellingshausen areas allow us to define three distinct zones: (A) the Scotia Sea, Bransfield Strait and oceanic waters of the northern-central We...

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Autores principales: Alder, V.A., Boltovskoy, D.
Formato: JOUR
Materias:
ciliate
tintinnid
Antarctica
Antarctica, Bransfield Strait
Bellingshausen Sea
Scotia Sea
Southern Ocean
Weddell Sea
Codonellopsis balechi
Codonellopsis gaussi
Cymatocylis affinis
Cymatocylis convallaria
Cymatocylis drygalskii
Laackmanniella prolongata
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03044203_v35_n1-4_p337_Alder
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03044203_v35_n1-4_p337_Alder
record_format dspace
spelling todo:paper_03044203_v35_n1-4_p337_Alder2023-10-03T15:20:52Z The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean Alder, V.A. Boltovskoy, D. ciliate tintinnid Antarctica Antarctica, Bransfield Strait Bellingshausen Sea Scotia Sea Southern Ocean Weddell Sea Codonellopsis balechi Codonellopsis gaussi Cymatocylis affinis Cymatocylis convallaria Cymatocylis drygalskii Laackmanniella prolongata Qualitative and quantitative analyses of the tintinnids retrieved in surface and vertical (down to 1150 m ) samples in the Scotia, Weddell, Bransfield and Bellingshausen areas allow us to define three distinct zones: (A) the Scotia Sea, Bransfield Strait and oceanic waters of the northern-central Weddell Sea, dominated by Codonelopsis gaussi and Cymatocylis affinis/conmllaria; (B) shelf and mostly ice-covered areas of the southernmost Weddell Sea and the Bellingshausen Sea, characterized by Laackmanniella prolongata and Cymatocylis drygalskii; (C) Bransfield-Weddell waters around the tip of the Antarctic Peninsula, where Codonellopsis balechi accounts for 80% of the tintinnids. These areas have (often significantly) different ice regimes, water-column depths, surface salinities, bulk planktonic settling volumes and microplanktonic concentrations. On the other hand, the composition of tintinnid assemblages is very similar on both sides of the Antarctic Peninsula. Causal interpretations for these heterogeneous distribution patterns and probable specific adaptations to the dissimilar environmental settings involved are analyzed. © 1991, Elsevier Science Publishers B.V. All rights reserved. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03044203_v35_n1-4_p337_Alder
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic ciliate
tintinnid
Antarctica
Antarctica, Bransfield Strait
Bellingshausen Sea
Scotia Sea
Southern Ocean
Weddell Sea
Codonellopsis balechi
Codonellopsis gaussi
Cymatocylis affinis
Cymatocylis convallaria
Cymatocylis drygalskii
Laackmanniella prolongata
spellingShingle ciliate
tintinnid
Antarctica
Antarctica, Bransfield Strait
Bellingshausen Sea
Scotia Sea
Southern Ocean
Weddell Sea
Codonellopsis balechi
Codonellopsis gaussi
Cymatocylis affinis
Cymatocylis convallaria
Cymatocylis drygalskii
Laackmanniella prolongata
Alder, V.A.
Boltovskoy, D.
The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
topic_facet ciliate
tintinnid
Antarctica
Antarctica, Bransfield Strait
Bellingshausen Sea
Scotia Sea
Southern Ocean
Weddell Sea
Codonellopsis balechi
Codonellopsis gaussi
Cymatocylis affinis
Cymatocylis convallaria
Cymatocylis drygalskii
Laackmanniella prolongata
description Qualitative and quantitative analyses of the tintinnids retrieved in surface and vertical (down to 1150 m ) samples in the Scotia, Weddell, Bransfield and Bellingshausen areas allow us to define three distinct zones: (A) the Scotia Sea, Bransfield Strait and oceanic waters of the northern-central Weddell Sea, dominated by Codonelopsis gaussi and Cymatocylis affinis/conmllaria; (B) shelf and mostly ice-covered areas of the southernmost Weddell Sea and the Bellingshausen Sea, characterized by Laackmanniella prolongata and Cymatocylis drygalskii; (C) Bransfield-Weddell waters around the tip of the Antarctic Peninsula, where Codonellopsis balechi accounts for 80% of the tintinnids. These areas have (often significantly) different ice regimes, water-column depths, surface salinities, bulk planktonic settling volumes and microplanktonic concentrations. On the other hand, the composition of tintinnid assemblages is very similar on both sides of the Antarctic Peninsula. Causal interpretations for these heterogeneous distribution patterns and probable specific adaptations to the dissimilar environmental settings involved are analyzed. © 1991, Elsevier Science Publishers B.V. All rights reserved. All rights reserved.
format JOUR
author Alder, V.A.
Boltovskoy, D.
author_facet Alder, V.A.
Boltovskoy, D.
author_sort Alder, V.A.
title The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
title_short The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
title_full The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
title_fullStr The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
title_full_unstemmed The ecology and biogeography of tintinnid ciliates in the Atlantic sector of the Southern Ocean
title_sort ecology and biogeography of tintinnid ciliates in the atlantic sector of the southern ocean
url http://hdl.handle.net/20.500.12110/paper_03044203_v35_n1-4_p337_Alder
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AT boltovskoyd theecologyandbiogeographyoftintinnidciliatesintheatlanticsectorofthesouthernocean
AT alderva ecologyandbiogeographyoftintinnidciliatesintheatlanticsectorofthesouthernocean
AT boltovskoyd ecologyandbiogeographyoftintinnidciliatesintheatlanticsectorofthesouthernocean
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