Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX
Southeastern Bering Sea is one of the highest surface productivity area in the open ocean due to strong upwelling along the Bering canyon. However, the benthic geochemistry and organisms living in the area have been largely overlooked. In August 2017, surface sediment was sampled from four stations...
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ftfrontimediafig:oai:figshare.com:article/13186415 2023-05-15T15:43:30+02:00 Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX Dewi Langlet Vincent M. P. Bouchet Riccardo Riso Yohei Matsui Hisami Suga Yoshihiro Fujiwara Hidetaka Nomaki 2020-11-04T04:48:58Z https://doi.org/10.3389/fmars.2020.582818.s002 https://figshare.com/articles/dataset/Table_1_Foraminiferal_Ecology_and_Role_in_Nitrogen_Benthic_Cycle_in_the_Hypoxic_Southeastern_Bering_Sea_XLSX/13186415 unknown doi:10.3389/fmars.2020.582818.s002 https://figshare.com/articles/dataset/Table_1_Foraminiferal_Ecology_and_Role_in_Nitrogen_Benthic_Cycle_in_the_Hypoxic_Southeastern_Bering_Sea_XLSX/13186415 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Bering Sea Bering canyon ecology benthic foraminifera denitrification Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.582818.s002 2020-11-04T23:55:01Z Southeastern Bering Sea is one of the highest surface productivity area in the open ocean due to strong upwelling along the Bering canyon. However, the benthic geochemistry and organisms living in the area have been largely overlooked. In August 2017, surface sediment was sampled from four stations along a transect at depths between 1536 and 103 meters in the Bering canyon with JAMSTEC R/V Mirai. Bottom-water hypoxia was recorded in the two deepest stations (1536 and 536 m). At these stations, the oxygen penetrated down to 5 mm in the sediment due to siltier and much organic-rich sediments in the deeper stations while oxygen penetration was about 20 mm at stations 103 and 197 m deep with coarse-grained sediment stations. Foraminiferal number of species and abundances were higher in the Unimak pass depression station E2 (197 m). Abundance did not change significantly between stations, suggesting that foraminiferal densities are not affected by the hypoxic conditions but are rather controlled by organic matter and nutrients availability. At the upper bathyal and middle bathyal stations, living foraminiferal communities were in general dominated by Uvigerina peregrina, Nonionella pulchella, Elphidium batialis, Globobulimina pacifica, Reophax spp., and Bolivina spathulata while the shallower stations exhibited large densities of Uvigerina peregrina, Cibicidoides wuellerstorfi, Recurvoidella bradyi, Globocassidulina subglobosa, and Portatrochammina pacifica. More than 50% of the individuals have a potential to accumulate nitrate in their cell (from 3 to 648 mmol/L; which is from 100 to 4000 times larger than the highest concentration measured in pore water). Onboard denitrification measurements confirmed that B. spathulata, N. pulchella and G. pacifica could reduce nitrate through denitrification and foraminiferal denitrification could contribute over 6% to benthic nitrate reduction at the southeast Bering Sea. Although the foraminiferal contributions were smaller than those measured at other hypoxic areas, our study ... Dataset Bering Sea Frontiers: Figshare Bering Sea Bering Canyon ENVELOPE(-165.032,-165.032,54.894,54.894) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Bering Sea Bering canyon ecology benthic foraminifera denitrification |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Bering Sea Bering canyon ecology benthic foraminifera denitrification Dewi Langlet Vincent M. P. Bouchet Riccardo Riso Yohei Matsui Hisami Suga Yoshihiro Fujiwara Hidetaka Nomaki Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Bering Sea Bering canyon ecology benthic foraminifera denitrification |
description |
Southeastern Bering Sea is one of the highest surface productivity area in the open ocean due to strong upwelling along the Bering canyon. However, the benthic geochemistry and organisms living in the area have been largely overlooked. In August 2017, surface sediment was sampled from four stations along a transect at depths between 1536 and 103 meters in the Bering canyon with JAMSTEC R/V Mirai. Bottom-water hypoxia was recorded in the two deepest stations (1536 and 536 m). At these stations, the oxygen penetrated down to 5 mm in the sediment due to siltier and much organic-rich sediments in the deeper stations while oxygen penetration was about 20 mm at stations 103 and 197 m deep with coarse-grained sediment stations. Foraminiferal number of species and abundances were higher in the Unimak pass depression station E2 (197 m). Abundance did not change significantly between stations, suggesting that foraminiferal densities are not affected by the hypoxic conditions but are rather controlled by organic matter and nutrients availability. At the upper bathyal and middle bathyal stations, living foraminiferal communities were in general dominated by Uvigerina peregrina, Nonionella pulchella, Elphidium batialis, Globobulimina pacifica, Reophax spp., and Bolivina spathulata while the shallower stations exhibited large densities of Uvigerina peregrina, Cibicidoides wuellerstorfi, Recurvoidella bradyi, Globocassidulina subglobosa, and Portatrochammina pacifica. More than 50% of the individuals have a potential to accumulate nitrate in their cell (from 3 to 648 mmol/L; which is from 100 to 4000 times larger than the highest concentration measured in pore water). Onboard denitrification measurements confirmed that B. spathulata, N. pulchella and G. pacifica could reduce nitrate through denitrification and foraminiferal denitrification could contribute over 6% to benthic nitrate reduction at the southeast Bering Sea. Although the foraminiferal contributions were smaller than those measured at other hypoxic areas, our study ... |
format |
Dataset |
author |
Dewi Langlet Vincent M. P. Bouchet Riccardo Riso Yohei Matsui Hisami Suga Yoshihiro Fujiwara Hidetaka Nomaki |
author_facet |
Dewi Langlet Vincent M. P. Bouchet Riccardo Riso Yohei Matsui Hisami Suga Yoshihiro Fujiwara Hidetaka Nomaki |
author_sort |
Dewi Langlet |
title |
Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
title_short |
Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
title_full |
Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
title_fullStr |
Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
title_full_unstemmed |
Table_1_Foraminiferal Ecology and Role in Nitrogen Benthic Cycle in the Hypoxic Southeastern Bering Sea.XLSX |
title_sort |
table_1_foraminiferal ecology and role in nitrogen benthic cycle in the hypoxic southeastern bering sea.xlsx |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.582818.s002 https://figshare.com/articles/dataset/Table_1_Foraminiferal_Ecology_and_Role_in_Nitrogen_Benthic_Cycle_in_the_Hypoxic_Southeastern_Bering_Sea_XLSX/13186415 |
long_lat |
ENVELOPE(-165.032,-165.032,54.894,54.894) |
geographic |
Bering Sea Bering Canyon |
geographic_facet |
Bering Sea Bering Canyon |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_relation |
doi:10.3389/fmars.2020.582818.s002 https://figshare.com/articles/dataset/Table_1_Foraminiferal_Ecology_and_Role_in_Nitrogen_Benthic_Cycle_in_the_Hypoxic_Southeastern_Bering_Sea_XLSX/13186415 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.582818.s002 |
_version_ |
1766377667234365440 |