Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759
Time-series sediment traps were deployed for five consecutive years in two distinctively different subarctic marine environments. The centrally located subarctic pelagic Station SA (49°N, 174°W; water depth 5406 m) was simultaneously studied along with the marginal sea Station AB (53.5°N, 177°W; wat...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2000
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.735731 https://doi.pangaea.de/10.1594/PANGAEA.735731 |
id |
ftdatacite:10.1594/pangaea.735731 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.735731 2023-05-15T15:43:24+02:00 Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 Takahashi, Kyoma Fujitani, N Yanada, M Maita, Y 2000 application/zip https://dx.doi.org/10.1594/pangaea.735731 https://doi.pangaea.de/10.1594/PANGAEA.735731 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/s0967-0637(00)00002-9 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Trap, sediment article Supplementary Collection of Datasets Collection 2000 ftdatacite https://doi.org/10.1594/pangaea.735731 https://doi.org/10.1016/s0967-0637(00)00002-9 2022-02-09T13:17:17Z Time-series sediment traps were deployed for five consecutive years in two distinctively different subarctic marine environments. The centrally located subarctic pelagic Station SA (49°N, 174°W; water depth 5406 m) was simultaneously studied along with the marginal sea Station AB (53.5°N, 177°W; water depth 3788 m) in the Aleutian Basin of the Bering Sea. A mooring system was tethered to the sea-floor with a PARFLUX type trap with 13 sample bottles, which was placed at 600 m above the sea-floor at each of the two stations. Sampling intervals were synchronized at the stations, and they were generally set for 20 days during highly productive seasons, spring through fall, and 56 days during winter months of low productivity. Total mass fluxes, which consisted of mainly biogenic phases, were significantly greater at the marginal sea Station AB than at the pelagic Station SA for the first four years and moderately greater for the last year of the observations. This reflects the generally recognized higher productivity in the Bering Sea. Temporal excursion patterns of the mass fluxes at the two stations generally were in parallel, implying that temporal changes in their biological productivity are strongly governed by a large-scale seasonal climatic variability over the region rather than local phenomena. The primary reason for the difference in total mass flux at the two stations stems mainly from varying contributions of siliceous and calcareous planktonic assemblages. A significantly higher opal contribution at Station AB than at Station SA was mainly due to diatoms. Diatom fluxes at the marginal sea station were about twice those observed at the pelagic station, resulting in a very high opal contribution at Station AB. In contrast to the opal fluxes, CaCO3 fluxes at Station AB were slightly lower than at Station SA. The ratios of Corg/Cinorg were usually significantly greater than one in both regions, suggesting that preferentially greater organic carbon from cytoplasm than skeletal inorganic carbon was exported from the surface layers. Such a process, known as the biological pump, leads to a carbon sink which effectively lowers p CO2 in the surface layers and then allows a net flux of atmospheric CO2 into the surface layer. The efficiency of the biological pump is greater in the Bering Sea than at the open-ocean station. Article in Journal/Newspaper Bering Sea Subarctic DataCite Metadata Store (German National Library of Science and Technology) Bering Sea Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Trap, sediment |
spellingShingle |
Trap, sediment Takahashi, Kyoma Fujitani, N Yanada, M Maita, Y Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
topic_facet |
Trap, sediment |
description |
Time-series sediment traps were deployed for five consecutive years in two distinctively different subarctic marine environments. The centrally located subarctic pelagic Station SA (49°N, 174°W; water depth 5406 m) was simultaneously studied along with the marginal sea Station AB (53.5°N, 177°W; water depth 3788 m) in the Aleutian Basin of the Bering Sea. A mooring system was tethered to the sea-floor with a PARFLUX type trap with 13 sample bottles, which was placed at 600 m above the sea-floor at each of the two stations. Sampling intervals were synchronized at the stations, and they were generally set for 20 days during highly productive seasons, spring through fall, and 56 days during winter months of low productivity. Total mass fluxes, which consisted of mainly biogenic phases, were significantly greater at the marginal sea Station AB than at the pelagic Station SA for the first four years and moderately greater for the last year of the observations. This reflects the generally recognized higher productivity in the Bering Sea. Temporal excursion patterns of the mass fluxes at the two stations generally were in parallel, implying that temporal changes in their biological productivity are strongly governed by a large-scale seasonal climatic variability over the region rather than local phenomena. The primary reason for the difference in total mass flux at the two stations stems mainly from varying contributions of siliceous and calcareous planktonic assemblages. A significantly higher opal contribution at Station AB than at Station SA was mainly due to diatoms. Diatom fluxes at the marginal sea station were about twice those observed at the pelagic station, resulting in a very high opal contribution at Station AB. In contrast to the opal fluxes, CaCO3 fluxes at Station AB were slightly lower than at Station SA. The ratios of Corg/Cinorg were usually significantly greater than one in both regions, suggesting that preferentially greater organic carbon from cytoplasm than skeletal inorganic carbon was exported from the surface layers. Such a process, known as the biological pump, leads to a carbon sink which effectively lowers p CO2 in the surface layers and then allows a net flux of atmospheric CO2 into the surface layer. The efficiency of the biological pump is greater in the Bering Sea than at the open-ocean station. |
format |
Article in Journal/Newspaper |
author |
Takahashi, Kyoma Fujitani, N Yanada, M Maita, Y |
author_facet |
Takahashi, Kyoma Fujitani, N Yanada, M Maita, Y |
author_sort |
Takahashi, Kyoma |
title |
Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
title_short |
Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
title_full |
Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
title_fullStr |
Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
title_full_unstemmed |
Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, supplement to: Takahashi, Kyoma; Fujitani, N; Yanada, M; Maita, Y (2000): Long-term biogenic particle fluxes in the Bering Sea and the central subarctic Pacific Ocean, 1990-1995. Deep Sea Research Part I: Oceanographic Research Papers, 47(9), 1723-1759 |
title_sort |
long-term biogenic particle fluxes in the bering sea and the central subarctic pacific ocean, supplement to: takahashi, kyoma; fujitani, n; yanada, m; maita, y (2000): long-term biogenic particle fluxes in the bering sea and the central subarctic pacific ocean, 1990-1995. deep sea research part i: oceanographic research papers, 47(9), 1723-1759 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2000 |
url |
https://dx.doi.org/10.1594/pangaea.735731 https://doi.pangaea.de/10.1594/PANGAEA.735731 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea Subarctic |
genre_facet |
Bering Sea Subarctic |
op_relation |
https://dx.doi.org/10.1016/s0967-0637(00)00002-9 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.735731 https://doi.org/10.1016/s0967-0637(00)00002-9 |
_version_ |
1766377502092034048 |