Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx
The distribution of dissolved iodine in seawater is sensitive to multiple biogeochemical cycles, including those of nitrogen and oxygen. The iodine-to-calcium ratio (I/Ca) of marine carbonates, such as bulk carbonate or foraminifera, has emerged as a potential proxy for changes in past seawater oxyg...
Main Authors: | , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2023.1264380.s002 https://figshare.com/articles/dataset/Table_1_Iodine-to-calcium_ratios_in_deep-sea_scleractinian_and_bamboo_corals_xlsx/24515524 |
id |
ftfrontimediafig:oai:figshare.com:article/24515524 |
---|---|
record_format |
openpolar |
spelling |
ftfrontimediafig:oai:figshare.com:article/24515524 2024-09-15T18:24:00+00:00 Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx Yun-Ju Sun Laura F. Robinson Ian J. Parkinson Joseph A. Stewart Wanyi Lu Dalton S. Hardisty Qian Liu James Kershaw Michèle LaVigne Tristan J. Horner 2023-11-07T04:09:07Z https://doi.org/10.3389/fmars.2023.1264380.s002 https://figshare.com/articles/dataset/Table_1_Iodine-to-calcium_ratios_in_deep-sea_scleractinian_and_bamboo_corals_xlsx/24515524 unknown doi:10.3389/fmars.2023.1264380.s002 https://figshare.com/articles/dataset/Table_1_Iodine-to-calcium_ratios_in_deep-sea_scleractinian_and_bamboo_corals_xlsx/24515524 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biogenic carbonate iodate incorporation seawater oxygenation proxy dissolved oxygen marine redox state Dataset 2023 ftfrontimediafig https://doi.org/10.3389/fmars.2023.1264380.s002 2024-08-19T06:20:03Z The distribution of dissolved iodine in seawater is sensitive to multiple biogeochemical cycles, including those of nitrogen and oxygen. The iodine-to-calcium ratio (I/Ca) of marine carbonates, such as bulk carbonate or foraminifera, has emerged as a potential proxy for changes in past seawater oxygenation. However, the utility of the I/Ca proxy in deep-sea corals, natural archives of seawater chemistry with wide spatial coverage and radiometric dating potential, remains unexplored. Here, we present the first I/Ca data obtained from modern deep-sea corals, specifically scleractinian and bamboo corals, collected from the Atlantic, Eastern Pacific, and Southern Oceans, encompassing a wide range of seawater oxygen concentrations (10–280 μmol/kg). In contrast to thermodynamic predictions, we observe higher I/Ca ratios in aragonitic corals (scleractinian) compared to calcitic corals (bamboo). This observation suggests a strong biological control during iodate incorporation into deep-sea coral skeletons. For the majority of scleractinian corals, I/Ca exhibits a covariation with local seawater iodate concentrations, which is closely related to seawater oxygen content. Scleractinian corals also exhibit notably lower I/Ca below a seawater oxygen threshold of approximately 160 μmol/kg. In contrast, no significant differences in I/Ca are found among bamboo corals across the range of oxygen concentrations encountered (15–240 μmol/kg). In the North Atlantic, several hydrographic factors, such as temperature and/or salinity, may additionally affect coral I/Ca. Our results highlight the potential of I/Ca ratios in deep-sea scleractinian corals to serve as an indicator of past seawater iodate concentrations, providing valuable insights into historical seawater oxygen levels. Dataset North Atlantic Frontiers: Figshare |
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 biogenic carbonate iodate incorporation seawater oxygenation proxy dissolved oxygen marine redox state |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biogenic carbonate iodate incorporation seawater oxygenation proxy dissolved oxygen marine redox state Yun-Ju Sun Laura F. Robinson Ian J. Parkinson Joseph A. Stewart Wanyi Lu Dalton S. Hardisty Qian Liu James Kershaw Michèle LaVigne Tristan J. Horner Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biogenic carbonate iodate incorporation seawater oxygenation proxy dissolved oxygen marine redox state |
description |
The distribution of dissolved iodine in seawater is sensitive to multiple biogeochemical cycles, including those of nitrogen and oxygen. The iodine-to-calcium ratio (I/Ca) of marine carbonates, such as bulk carbonate or foraminifera, has emerged as a potential proxy for changes in past seawater oxygenation. However, the utility of the I/Ca proxy in deep-sea corals, natural archives of seawater chemistry with wide spatial coverage and radiometric dating potential, remains unexplored. Here, we present the first I/Ca data obtained from modern deep-sea corals, specifically scleractinian and bamboo corals, collected from the Atlantic, Eastern Pacific, and Southern Oceans, encompassing a wide range of seawater oxygen concentrations (10–280 μmol/kg). In contrast to thermodynamic predictions, we observe higher I/Ca ratios in aragonitic corals (scleractinian) compared to calcitic corals (bamboo). This observation suggests a strong biological control during iodate incorporation into deep-sea coral skeletons. For the majority of scleractinian corals, I/Ca exhibits a covariation with local seawater iodate concentrations, which is closely related to seawater oxygen content. Scleractinian corals also exhibit notably lower I/Ca below a seawater oxygen threshold of approximately 160 μmol/kg. In contrast, no significant differences in I/Ca are found among bamboo corals across the range of oxygen concentrations encountered (15–240 μmol/kg). In the North Atlantic, several hydrographic factors, such as temperature and/or salinity, may additionally affect coral I/Ca. Our results highlight the potential of I/Ca ratios in deep-sea scleractinian corals to serve as an indicator of past seawater iodate concentrations, providing valuable insights into historical seawater oxygen levels. |
format |
Dataset |
author |
Yun-Ju Sun Laura F. Robinson Ian J. Parkinson Joseph A. Stewart Wanyi Lu Dalton S. Hardisty Qian Liu James Kershaw Michèle LaVigne Tristan J. Horner |
author_facet |
Yun-Ju Sun Laura F. Robinson Ian J. Parkinson Joseph A. Stewart Wanyi Lu Dalton S. Hardisty Qian Liu James Kershaw Michèle LaVigne Tristan J. Horner |
author_sort |
Yun-Ju Sun |
title |
Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
title_short |
Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
title_full |
Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
title_fullStr |
Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
title_full_unstemmed |
Table_1_Iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
title_sort |
table_1_iodine-to-calcium ratios in deep-sea scleractinian and bamboo corals.xlsx |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1264380.s002 https://figshare.com/articles/dataset/Table_1_Iodine-to-calcium_ratios_in_deep-sea_scleractinian_and_bamboo_corals_xlsx/24515524 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.3389/fmars.2023.1264380.s002 https://figshare.com/articles/dataset/Table_1_Iodine-to-calcium_ratios_in_deep-sea_scleractinian_and_bamboo_corals_xlsx/24515524 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2023.1264380.s002 |
_version_ |
1810464298655285248 |