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...
Published in: | Journal of Ocean University of China |
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OCEAN UNIV CHINA
2020
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Online Access: | http://ir.qdio.ac.cn/handle/337002/165271 http://ir.qdio.ac.cn/handle/337002/165272 https://doi.org/10.1007/s11802-020-4129-6 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/165272 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 2020-04-01 http://ir.qdio.ac.cn/handle/337002/165271 http://ir.qdio.ac.cn/handle/337002/165272 https://doi.org/10.1007/s11802-020-4129-6 英语 eng OCEAN UNIV CHINA JOURNAL OF OCEAN UNIVERSITY OF CHINA http://ir.qdio.ac.cn/handle/337002/165271 http://ir.qdio.ac.cn/handle/337002/165272 doi:10.1007/s11802-020-4129-6 tintinnid abundance distribution polar front Amundsen Sea Antarctica Oceanography 期刊论文 2020 ftchinacasciocas https://doi.org/10.1007/s11802-020-4129-6 2022-06-27T05:42:06Z 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 van-hoeffeni, C. convallaria forma cristallina, C. convallaria forma drygalskii, C. convallaria, Codonellopsis gaussi, and Laackman-niella naviculaefera and mainly occurs in the AZ near the Antarctic continent; and Group I V, 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 Journal of Ocean University of China 19 2 339 350 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
tintinnid abundance distribution polar front Amundsen Sea Antarctica Oceanography |
spellingShingle |
tintinnid abundance distribution polar front Amundsen Sea Antarctica Oceanography 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 Oceanography |
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 van-hoeffeni, C. convallaria forma cristallina, C. convallaria forma drygalskii, C. convallaria, Codonellopsis gaussi, and Laackman-niella naviculaefera and mainly occurs in the AZ near the Antarctic continent; and Group I V, 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 |
publisher |
OCEAN UNIV CHINA |
publishDate |
2020 |
url |
http://ir.qdio.ac.cn/handle/337002/165271 http://ir.qdio.ac.cn/handle/337002/165272 https://doi.org/10.1007/s11802-020-4129-6 |
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 |
JOURNAL OF OCEAN UNIVERSITY OF CHINA http://ir.qdio.ac.cn/handle/337002/165271 http://ir.qdio.ac.cn/handle/337002/165272 doi:10.1007/s11802-020-4129-6 |
op_doi |
https://doi.org/10.1007/s11802-020-4129-6 |
container_title |
Journal of Ocean University of China |
container_volume |
19 |
container_issue |
2 |
container_start_page |
339 |
op_container_end_page |
350 |
_version_ |
1766375267208527872 |