Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes
The vertical distribution of radiolarians was investigated using a vertical multiple plankton sampler (100–0, 250–100, 500–250, and 1000–500 m water depths, 62 μm mesh size) at the Northwind Abyssal Plain and southwestern Canada Basin in September 2013. To investigate seasonal variations in the flux...
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ftdoajarticles:oai:doaj.org/article:25eeb8fcbd4346468e102b51832881f9 2023-05-15T14:57:08+02:00 Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes T. Ikenoue K. R. Bjørklund S. B. Kruglikova J. Onodera K. Kimoto N. Harada 2015-03-01T00:00:00Z https://doi.org/10.5194/bg-12-2019-2015 https://doaj.org/article/25eeb8fcbd4346468e102b51832881f9 EN eng Copernicus Publications http://www.biogeosciences.net/12/2019/2015/bg-12-2019-2015.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-12-2019-2015 https://doaj.org/article/25eeb8fcbd4346468e102b51832881f9 Biogeosciences, Vol 12, Iss 6, Pp 2019-2046 (2015) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.5194/bg-12-2019-2015 2022-12-31T08:27:19Z The vertical distribution of radiolarians was investigated using a vertical multiple plankton sampler (100–0, 250–100, 500–250, and 1000–500 m water depths, 62 μm mesh size) at the Northwind Abyssal Plain and southwestern Canada Basin in September 2013. To investigate seasonal variations in the flux of radiolarians in relation to sea ice and water masses, a time-series sediment trap system was moored at Station NAP (75°00´ N, 162°00´ W; bottom depth 1975 m) in the western Arctic Ocean during October 2010–September 2012. The radiolarian flux was comparable to that in the North Pacific Ocean. Amphimelissa setosa was dominant during the season with open water as well as at the beginning and end of the seasons with sea-ice cover. During the sea-ice-cover season, however, oligotrophic and cold-water-tolerant actinommids were dominant, productivity of Radiolaria was lower, and species diversity was greater. These suggest that the dynamics of sea ice are a major factor affecting the productivity, distribution, and composition of the radiolarian fauna. Article in Journal/Newspaper Arctic Arctic Ocean canada basin Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Canada Pacific Northwind Abyssal Plain ENVELOPE(-159.630,-159.630,74.878,74.878) Biogeosciences 12 6 2019 2046 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 T. Ikenoue K. R. Bjørklund S. B. Kruglikova J. Onodera K. Kimoto N. Harada Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
The vertical distribution of radiolarians was investigated using a vertical multiple plankton sampler (100–0, 250–100, 500–250, and 1000–500 m water depths, 62 μm mesh size) at the Northwind Abyssal Plain and southwestern Canada Basin in September 2013. To investigate seasonal variations in the flux of radiolarians in relation to sea ice and water masses, a time-series sediment trap system was moored at Station NAP (75°00´ N, 162°00´ W; bottom depth 1975 m) in the western Arctic Ocean during October 2010–September 2012. The radiolarian flux was comparable to that in the North Pacific Ocean. Amphimelissa setosa was dominant during the season with open water as well as at the beginning and end of the seasons with sea-ice cover. During the sea-ice-cover season, however, oligotrophic and cold-water-tolerant actinommids were dominant, productivity of Radiolaria was lower, and species diversity was greater. These suggest that the dynamics of sea ice are a major factor affecting the productivity, distribution, and composition of the radiolarian fauna. |
format |
Article in Journal/Newspaper |
author |
T. Ikenoue K. R. Bjørklund S. B. Kruglikova J. Onodera K. Kimoto N. Harada |
author_facet |
T. Ikenoue K. R. Bjørklund S. B. Kruglikova J. Onodera K. Kimoto N. Harada |
author_sort |
T. Ikenoue |
title |
Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
title_short |
Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
title_full |
Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
title_fullStr |
Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
title_full_unstemmed |
Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
title_sort |
flux variations and vertical distributions of siliceous rhizaria (radiolaria and phaeodaria) in the western arctic ocean: indices of environmental changes |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/bg-12-2019-2015 https://doaj.org/article/25eeb8fcbd4346468e102b51832881f9 |
long_lat |
ENVELOPE(-159.630,-159.630,74.878,74.878) |
geographic |
Arctic Arctic Ocean Canada Pacific Northwind Abyssal Plain |
geographic_facet |
Arctic Arctic Ocean Canada Pacific Northwind Abyssal Plain |
genre |
Arctic Arctic Ocean canada basin Sea ice |
genre_facet |
Arctic Arctic Ocean canada basin Sea ice |
op_source |
Biogeosciences, Vol 12, Iss 6, Pp 2019-2046 (2015) |
op_relation |
http://www.biogeosciences.net/12/2019/2015/bg-12-2019-2015.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-12-2019-2015 https://doaj.org/article/25eeb8fcbd4346468e102b51832881f9 |
op_doi |
https://doi.org/10.5194/bg-12-2019-2015 |
container_title |
Biogeosciences |
container_volume |
12 |
container_issue |
6 |
container_start_page |
2019 |
op_container_end_page |
2046 |
_version_ |
1766329220605149184 |