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...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/bg-12-2019-2015 https://www.biogeosciences.net/12/2019/2015/ |
id |
ftcopernicus:oai:publications.copernicus.org:bg27339 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:bg27339 2023-05-15T14:56:10+02:00 Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes Ikenoue, T. Bjørklund, K. R. Kruglikova, S. B. Onodera, J. Kimoto, K. Harada, N. 2018-09-27 application/pdf https://doi.org/10.5194/bg-12-2019-2015 https://www.biogeosciences.net/12/2019/2015/ eng eng doi:10.5194/bg-12-2019-2015 https://www.biogeosciences.net/12/2019/2015/ eISSN: 1726-4189 Text 2018 ftcopernicus https://doi.org/10.5194/bg-12-2019-2015 2019-12-24T09:53:39Z 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. Text Arctic Arctic Ocean canada basin Sea ice Copernicus Publications: E-Journals Arctic Arctic Ocean Canada Northwind Abyssal Plain ENVELOPE(-159.630,-159.630,74.878,74.878) Pacific Biogeosciences 12 6 2019 2046 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
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 |
Text |
author |
Ikenoue, T. Bjørklund, K. R. Kruglikova, S. B. Onodera, J. Kimoto, K. Harada, N. |
spellingShingle |
Ikenoue, T. Bjørklund, K. R. Kruglikova, S. B. Onodera, J. Kimoto, K. Harada, N. Flux variations and vertical distributions of siliceous Rhizaria (Radiolaria and Phaeodaria) in the western Arctic Ocean: indices of environmental changes |
author_facet |
Ikenoue, T. Bjørklund, K. R. Kruglikova, S. B. Onodera, J. Kimoto, K. Harada, N. |
author_sort |
Ikenoue, T. |
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 |
publishDate |
2018 |
url |
https://doi.org/10.5194/bg-12-2019-2015 https://www.biogeosciences.net/12/2019/2015/ |
long_lat |
ENVELOPE(-159.630,-159.630,74.878,74.878) |
geographic |
Arctic Arctic Ocean Canada Northwind Abyssal Plain Pacific |
geographic_facet |
Arctic Arctic Ocean Canada Northwind Abyssal Plain Pacific |
genre |
Arctic Arctic Ocean canada basin Sea ice |
genre_facet |
Arctic Arctic Ocean canada basin Sea ice |
op_source |
eISSN: 1726-4189 |
op_relation |
doi:10.5194/bg-12-2019-2015 https://www.biogeosciences.net/12/2019/2015/ |
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_ |
1766328195973382144 |