Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn
Tintinnid ciliates are important pelagic microplankton.Most studies previously conducted in the Amundsen Sea have covered a relatively small latitude range and provided minimal information about tintinnid species composition and distribution.The present study was conducted to investigate tintinnid a...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/171764 2023-05-15T13:23:47+02:00 Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn LIANG Chen LI Haibo ZHANG Wuchang TAO Zhencheng ZHAO Yuan 2020-01-01 http://ir.qdio.ac.cn/handle/337002/171764 中文 chi 中国海洋大学学报:英文版 http://ir.qdio.ac.cn/handle/337002/171764 tintinnid abundance distribution polar front Amundsen Sea Antarctica 期刊论文 2020 ftchinacasciocas 2022-06-27T05:44:13Z Tintinnid ciliates are important pelagic microplankton.Most studies previously conducted in the Amundsen Sea have covered a relatively small latitude range and provided minimal information about tintinnid species composition and distribution.The present study was conducted to investigate tintinnid assemblages from the Antarctic zone(AZ)northward through the polar front(PF)to the subantarctic zone(SAZ).A total of 17 tintinnid species belonging to seven genera were collected,and 16 were identified.Results show that nine of the species are endemic to the Southern Ocean and they mainly inhabit the AZ near Antarctic continent with an abundant proportion exceeding 60%of total tintinnid.According to the tintinnid abundance distribution,the species were divided into four groups:Group I includes Acanthostomella norvegica,Codonellopsis glacialis,C.pusilla and Cymatocylis antarctica and mainly occurs in the northern boundary of the PF;Group II includes Cymatocylis convallaria forma calyciformis,an unidentified species,and Amphorellopsis quinquealata and mainly inhabits the PF;Group III includes Salpingella costata,Cymatocylis vanhoeffeni,C.convallaria forma cristallina,C.convallaria forma drygalskii,C.convallaria,Codonellopsis gaussi,and Laackmanniella naviculaefera and mainly occurs in the AZ near the Antarctic continent;and Group IV,which comprises Salpingella sp.and inhabits all zones.The new species of tintinnid(belonging to Group II)primarily inhabit the AZ but also are distributed in the PF,and they have large lorica-oral-diameter(LOD).The distribution ranges of tintinnid assemblages from the AZ to PF were determined,in addition to the different assemblages mixed in the PF.The information provided in this study increases our understanding of tintinnid assemblages from the Antarctic continent in the Antarctic Circumpolar Current and Antarctic waters. Report Amundsen Sea Antarc* Antarctic Antarctica Southern Ocean West Antarctica Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Amundsen Sea Antarctic Austral Southern Ocean The Antarctic West Antarctica |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
Chinese |
topic |
tintinnid abundance distribution polar front Amundsen Sea Antarctica |
spellingShingle |
tintinnid abundance distribution polar front Amundsen Sea Antarctica LIANG Chen LI Haibo ZHANG Wuchang TAO Zhencheng ZHAO Yuan Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
topic_facet |
tintinnid abundance distribution polar front Amundsen Sea Antarctica |
description |
Tintinnid ciliates are important pelagic microplankton.Most studies previously conducted in the Amundsen Sea have covered a relatively small latitude range and provided minimal information about tintinnid species composition and distribution.The present study was conducted to investigate tintinnid assemblages from the Antarctic zone(AZ)northward through the polar front(PF)to the subantarctic zone(SAZ).A total of 17 tintinnid species belonging to seven genera were collected,and 16 were identified.Results show that nine of the species are endemic to the Southern Ocean and they mainly inhabit the AZ near Antarctic continent with an abundant proportion exceeding 60%of total tintinnid.According to the tintinnid abundance distribution,the species were divided into four groups:Group I includes Acanthostomella norvegica,Codonellopsis glacialis,C.pusilla and Cymatocylis antarctica and mainly occurs in the northern boundary of the PF;Group II includes Cymatocylis convallaria forma calyciformis,an unidentified species,and Amphorellopsis quinquealata and mainly inhabits the PF;Group III includes Salpingella costata,Cymatocylis vanhoeffeni,C.convallaria forma cristallina,C.convallaria forma drygalskii,C.convallaria,Codonellopsis gaussi,and Laackmanniella naviculaefera and mainly occurs in the AZ near the Antarctic continent;and Group IV,which comprises Salpingella sp.and inhabits all zones.The new species of tintinnid(belonging to Group II)primarily inhabit the AZ but also are distributed in the PF,and they have large lorica-oral-diameter(LOD).The distribution ranges of tintinnid assemblages from the AZ to PF were determined,in addition to the different assemblages mixed in the PF.The information provided in this study increases our understanding of tintinnid assemblages from the Antarctic continent in the Antarctic Circumpolar Current and Antarctic waters. |
format |
Report |
author |
LIANG Chen LI Haibo ZHANG Wuchang TAO Zhencheng ZHAO Yuan |
author_facet |
LIANG Chen LI Haibo ZHANG Wuchang TAO Zhencheng ZHAO Yuan |
author_sort |
LIANG Chen |
title |
Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
title_short |
Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
title_full |
Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
title_fullStr |
Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
title_full_unstemmed |
Changes in Tintinnid Assemblages from Subantarctic Zone to Antarctic Zone Along Transect in Amundsen Sea(West Antarctica)in Early Austral Autumn |
title_sort |
changes in tintinnid assemblages from subantarctic zone to antarctic zone along transect in amundsen sea(west antarctica)in early austral autumn |
publishDate |
2020 |
url |
http://ir.qdio.ac.cn/handle/337002/171764 |
geographic |
Amundsen Sea Antarctic Austral Southern Ocean The Antarctic West Antarctica |
geographic_facet |
Amundsen Sea Antarctic Austral Southern Ocean The Antarctic West Antarctica |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Southern Ocean West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Southern Ocean West Antarctica |
op_relation |
中国海洋大学学报:英文版 http://ir.qdio.ac.cn/handle/337002/171764 |
_version_ |
1766375256286560256 |