Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder
The first deployment of a Continuous Plankton Recorder (CPR) on board the icebreaker Shirase was conducted during the 41st Japanese Antarctic Research Expedition (JARE) in 1999/2000 austral summer in the Indian sector of the Antarctic Ocean. The CPR was towed horizontally at approximately 10m depth...
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National Institute of Polar Research
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ftdoajarticles:oai:doaj.org/article:0b4c20e5dd49487898186d80ab30e20d 2023-05-15T13:56:33+02:00 Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder Haruko Umeda Graham W. Hosie Tsuneo Odate Chiaki Hamada Mitsuo Fukuchi 2002-07-01T00:00:00Z https://doi.org/10.15094/00009227 https://doaj.org/article/0b4c20e5dd49487898186d80ab30e20d EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00009227 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009227 0085-7289 2432-079X https://doaj.org/article/0b4c20e5dd49487898186d80ab30e20d Antarctic Record, Vol 46, Iss 2, Pp 287-299 (2002) Geography (General) G1-922 article 2002 ftdoajarticles https://doi.org/10.15094/00009227 2022-12-31T14:10:03Z The first deployment of a Continuous Plankton Recorder (CPR) on board the icebreaker Shirase was conducted during the 41st Japanese Antarctic Research Expedition (JARE) in 1999/2000 austral summer in the Indian sector of the Antarctic Ocean. The CPR was towed horizontally at approximately 10m depth while the Shirase was steaming at about 14 knots across the Polar Front (PF). Mean total abundance of zooplankton for horizontal five nautical mile sample units was 168.1(SD : ±117.18) individuals with the maximum of 456 individuals. Zooplanktons were counted for 34 categories of species/taxa. Copepods occupied more than 90% of the total abundance in numbers. Oithona spp. was the most dominant group among copepods, representing 59% of the total zooplankton. Other numerically important categories were small-sized calanoids (copepodites and adults; 18.4%), and copepodites of Calanoides acutus and Calanus simillimus (8.2%). Latitudinal change of zooplankton abundance coincided with increasing/decreasing tends of temperature and salinity. Two different zooplankton assemblages were identified by cluster analysis and these assemblages seem to be closely related to different water characteristics, such as the of PF and areas of cold water masses. CPR is considered to be an ideal tool for long term monitoring of surface zooplankton communities. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Copepods Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Austral Indian Antarctic Ocean |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Haruko Umeda Graham W. Hosie Tsuneo Odate Chiaki Hamada Mitsuo Fukuchi Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
topic_facet |
Geography (General) G1-922 |
description |
The first deployment of a Continuous Plankton Recorder (CPR) on board the icebreaker Shirase was conducted during the 41st Japanese Antarctic Research Expedition (JARE) in 1999/2000 austral summer in the Indian sector of the Antarctic Ocean. The CPR was towed horizontally at approximately 10m depth while the Shirase was steaming at about 14 knots across the Polar Front (PF). Mean total abundance of zooplankton for horizontal five nautical mile sample units was 168.1(SD : ±117.18) individuals with the maximum of 456 individuals. Zooplanktons were counted for 34 categories of species/taxa. Copepods occupied more than 90% of the total abundance in numbers. Oithona spp. was the most dominant group among copepods, representing 59% of the total zooplankton. Other numerically important categories were small-sized calanoids (copepodites and adults; 18.4%), and copepodites of Calanoides acutus and Calanus simillimus (8.2%). Latitudinal change of zooplankton abundance coincided with increasing/decreasing tends of temperature and salinity. Two different zooplankton assemblages were identified by cluster analysis and these assemblages seem to be closely related to different water characteristics, such as the of PF and areas of cold water masses. CPR is considered to be an ideal tool for long term monitoring of surface zooplankton communities. |
format |
Article in Journal/Newspaper |
author |
Haruko Umeda Graham W. Hosie Tsuneo Odate Chiaki Hamada Mitsuo Fukuchi |
author_facet |
Haruko Umeda Graham W. Hosie Tsuneo Odate Chiaki Hamada Mitsuo Fukuchi |
author_sort |
Haruko Umeda |
title |
Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
title_short |
Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
title_full |
Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
title_fullStr |
Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
title_full_unstemmed |
Surface zooplankton communities in the Indian sector of the Antarctic Ocean in early summer 1999/2000 observed with a Continuous Plankton Recorder |
title_sort |
surface zooplankton communities in the indian sector of the antarctic ocean in early summer 1999/2000 observed with a continuous plankton recorder |
publisher |
National Institute of Polar Research |
publishDate |
2002 |
url |
https://doi.org/10.15094/00009227 https://doaj.org/article/0b4c20e5dd49487898186d80ab30e20d |
geographic |
Antarctic The Antarctic Austral Indian Antarctic Ocean |
geographic_facet |
Antarctic The Antarctic Austral Indian Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Ocean Copepods |
genre_facet |
Antarc* Antarctic Antarctic Ocean Copepods |
op_source |
Antarctic Record, Vol 46, Iss 2, Pp 287-299 (2002) |
op_relation |
http://doi.org/10.15094/00009227 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009227 0085-7289 2432-079X https://doaj.org/article/0b4c20e5dd49487898186d80ab30e20d |
op_doi |
https://doi.org/10.15094/00009227 |
_version_ |
1766264046062927872 |