Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago
Ice algae thriving within sea ice play a crucial role in transferring energy to higher trophic levels and influencing biogeochemical processes in polar oceans; however, the distribution of organic matter within the ice interior is not well understood. This study aimed to investigate the vertical dis...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1231083 https://www.frontiersin.org/articles/10.3389/fmars.2023.1231083/full |
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crfrontiers:10.3389/fmars.2023.1231083 2024-02-11T10:02:41+01:00 Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago Kim, Kwanwoo Ha, Sun-Yong Shin, Kyung-Hoon Kim, Jee-Hoon Mundy, C. J. Dalman, Laura A. Kim, Bo Kyung Lee, Dabin Jang, Hyo Keun Kim, Yejin Park, Sanghoon Lee, Sang Heon 2023 http://dx.doi.org/10.3389/fmars.2023.1231083 https://www.frontiersin.org/articles/10.3389/fmars.2023.1231083/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1231083 2024-01-26T10:00:22Z Ice algae thriving within sea ice play a crucial role in transferring energy to higher trophic levels and influencing biogeochemical processes in polar oceans; however, the distribution of organic matter within the ice interior is not well understood. This study aimed to investigate the vertical distribution of organic matter, including chlorophyll a (Chl-a), particulate organic carbon and nitrogen (POC and PON), carbohydrates (CHO), proteins (PRT), lipids (LIP), and food material (FM), within the sea ice. Samples were collected from the bottom, middle, and top sections of the sea ice column near Cambridge Bay during the spring of 2018. Based on the δ 13 C signature, biochemical composition, and POC contribution of biopolymeric carbon (BPC), the organic substances within the sea ice were predominantly attributed to marine autotrophs. While the highest concentrations of each parameter were observed at the sea ice bottom, notable concentrations were also found in the upper sections. The average sea ice column-integrated Chl- a concentration was 5.05 ± 2.26 mg m −2 , with the bottom ice section contributing 59% (S.D. = ± 10%) to the total integration. The column-integrated concentrations of FM, BPC, POC, and PON were 2.05 ± 0.39, 1.10 ± 0.20, 1.47 ± 0.25, and 0.09 ± 0.03 g m −2 , respectively. Contributions of the bottom ice section to these column-integrated concentrations varied for each parameter, with values of 20 ± 6, 21 ± 7, 19 ± 5, and 28 ± 7%, respectively. While the bottom ice section exhibited a substantial Chl- a contribution in line with previous studies, significantly higher contributions of the other parameters were observed in the upper sea ice sections. This suggests that the particulate matter within the interior of the sea ice could potentially serve as an additional food source for higher trophic grazers or act as a seeding material for a phytoplankton bloom during the ice melting season. Our findings highlight the importance of comprehensive field measurements encompassing the entire sea ice ... Article in Journal/Newspaper Cambridge Bay Canadian Archipelago ice algae Sea ice Frontiers (Publisher) Cambridge Bay ENVELOPE(-105.130,-105.130,69.037,69.037) Dease Strait ENVELOPE(-107.502,-107.502,68.834,68.834) Frontiers in Marine Science 10 |
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Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Kim, Kwanwoo Ha, Sun-Yong Shin, Kyung-Hoon Kim, Jee-Hoon Mundy, C. J. Dalman, Laura A. Kim, Bo Kyung Lee, Dabin Jang, Hyo Keun Kim, Yejin Park, Sanghoon Lee, Sang Heon Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
Ice algae thriving within sea ice play a crucial role in transferring energy to higher trophic levels and influencing biogeochemical processes in polar oceans; however, the distribution of organic matter within the ice interior is not well understood. This study aimed to investigate the vertical distribution of organic matter, including chlorophyll a (Chl-a), particulate organic carbon and nitrogen (POC and PON), carbohydrates (CHO), proteins (PRT), lipids (LIP), and food material (FM), within the sea ice. Samples were collected from the bottom, middle, and top sections of the sea ice column near Cambridge Bay during the spring of 2018. Based on the δ 13 C signature, biochemical composition, and POC contribution of biopolymeric carbon (BPC), the organic substances within the sea ice were predominantly attributed to marine autotrophs. While the highest concentrations of each parameter were observed at the sea ice bottom, notable concentrations were also found in the upper sections. The average sea ice column-integrated Chl- a concentration was 5.05 ± 2.26 mg m −2 , with the bottom ice section contributing 59% (S.D. = ± 10%) to the total integration. The column-integrated concentrations of FM, BPC, POC, and PON were 2.05 ± 0.39, 1.10 ± 0.20, 1.47 ± 0.25, and 0.09 ± 0.03 g m −2 , respectively. Contributions of the bottom ice section to these column-integrated concentrations varied for each parameter, with values of 20 ± 6, 21 ± 7, 19 ± 5, and 28 ± 7%, respectively. While the bottom ice section exhibited a substantial Chl- a contribution in line with previous studies, significantly higher contributions of the other parameters were observed in the upper sea ice sections. This suggests that the particulate matter within the interior of the sea ice could potentially serve as an additional food source for higher trophic grazers or act as a seeding material for a phytoplankton bloom during the ice melting season. Our findings highlight the importance of comprehensive field measurements encompassing the entire sea ice ... |
format |
Article in Journal/Newspaper |
author |
Kim, Kwanwoo Ha, Sun-Yong Shin, Kyung-Hoon Kim, Jee-Hoon Mundy, C. J. Dalman, Laura A. Kim, Bo Kyung Lee, Dabin Jang, Hyo Keun Kim, Yejin Park, Sanghoon Lee, Sang Heon |
author_facet |
Kim, Kwanwoo Ha, Sun-Yong Shin, Kyung-Hoon Kim, Jee-Hoon Mundy, C. J. Dalman, Laura A. Kim, Bo Kyung Lee, Dabin Jang, Hyo Keun Kim, Yejin Park, Sanghoon Lee, Sang Heon |
author_sort |
Kim, Kwanwoo |
title |
Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
title_short |
Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
title_full |
Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
title_fullStr |
Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
title_full_unstemmed |
Vertical distributions of organic matter components in sea ice near Cambridge Bay, Dease Strait, Canadian Archipelago |
title_sort |
vertical distributions of organic matter components in sea ice near cambridge bay, dease strait, canadian archipelago |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1231083 https://www.frontiersin.org/articles/10.3389/fmars.2023.1231083/full |
long_lat |
ENVELOPE(-105.130,-105.130,69.037,69.037) ENVELOPE(-107.502,-107.502,68.834,68.834) |
geographic |
Cambridge Bay Dease Strait |
geographic_facet |
Cambridge Bay Dease Strait |
genre |
Cambridge Bay Canadian Archipelago ice algae Sea ice |
genre_facet |
Cambridge Bay Canadian Archipelago ice algae Sea ice |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1231083 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1790598728195768320 |