Primary Production in the Kara, Laptev, and East Siberian Seas
Understanding of the primary production of phytoplankton in the Kara Sea (KS), the Laptev Sea (LS), and the East Siberian Sea (ESS) remains limited, despite the recognized importance of phytoplankton in the Arctic Ocean. To address this knowledge gap, we conducted three NABOS (Nansen and Amundsen Ba...
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ftmdpi:oai:mdpi.com:/2076-2607/11/8/1886/ 2023-08-20T04:04:25+02:00 Primary Production in the Kara, Laptev, and East Siberian Seas Soohyun Kim Kwanwoo Kim Naeun Jo Hyo-Keun Jang So-Hyun Ahn Janghan Lee Howon Lee Sanghoon Park Dabin Lee Dean A. Stockwell Terry E. Whitledge Sang-Heon Lee agris 2023-07-26 application/pdf https://doi.org/10.3390/microorganisms11081886 EN eng Multidisciplinary Digital Publishing Institute Environmental Microbiology https://dx.doi.org/10.3390/microorganisms11081886 https://creativecommons.org/licenses/by/4.0/ Microorganisms; Volume 11; Issue 8; Pages: 1886 primary production phytoplankton Kara Sea Laptev Sea East Siberian Sea Text 2023 ftmdpi https://doi.org/10.3390/microorganisms11081886 2023-08-01T11:01:14Z Understanding of the primary production of phytoplankton in the Kara Sea (KS), the Laptev Sea (LS), and the East Siberian Sea (ESS) remains limited, despite the recognized importance of phytoplankton in the Arctic Ocean. To address this knowledge gap, we conducted three NABOS (Nansen and Amundsen Basins Observational System) expeditions in 2013, 2015, and 2018 to measure in situ primary production rates using a 13C-15N dual-tracer method and examine their major controlling factors. The main goals in this study were to investigate regional heterogeneity in primary production and derive its contemporary ranges in the KS, LS, and ESS. The daily primary production rates in this study (99 ± 62, 100 ± 77, and 56 ± 35 mg C m−2 d−1 in the KS, LS, and ESS, respectively) are rather different from the values previously reported in each sea mainly because of spatial and regional differences. Among the three seas, a significantly lower primary production rate was observed in the ESS in comparison to those in the KS and LS. This is likely mainly because of regional differences in freshwater content based on the noticeable relationship (Spearman, rs = −0.714, p < 0.05) between the freshwater content and the primary production rates observed in this study. The contemporary ranges of the annual primary production based on this and previous studies are 0.96–2.64, 0.72–50.52, and 1.68–16.68 g C m−2 in the KS, LS, and ESS, respectively. Further intensive field measurements are warranted to enhance our understanding of marine microorganisms and their community-level responses to the currently changing environmental conditions in these poorly studied regions of the Arctic Ocean. Text Arctic Arctic Ocean East Siberian Sea Kara Sea Kara-Laptev laptev Laptev Sea Nansen Phytoplankton MDPI Open Access Publishing Arctic Arctic Ocean Laptev Sea Kara Sea East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Microorganisms 11 8 1886 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
primary production phytoplankton Kara Sea Laptev Sea East Siberian Sea |
spellingShingle |
primary production phytoplankton Kara Sea Laptev Sea East Siberian Sea Soohyun Kim Kwanwoo Kim Naeun Jo Hyo-Keun Jang So-Hyun Ahn Janghan Lee Howon Lee Sanghoon Park Dabin Lee Dean A. Stockwell Terry E. Whitledge Sang-Heon Lee Primary Production in the Kara, Laptev, and East Siberian Seas |
topic_facet |
primary production phytoplankton Kara Sea Laptev Sea East Siberian Sea |
description |
Understanding of the primary production of phytoplankton in the Kara Sea (KS), the Laptev Sea (LS), and the East Siberian Sea (ESS) remains limited, despite the recognized importance of phytoplankton in the Arctic Ocean. To address this knowledge gap, we conducted three NABOS (Nansen and Amundsen Basins Observational System) expeditions in 2013, 2015, and 2018 to measure in situ primary production rates using a 13C-15N dual-tracer method and examine their major controlling factors. The main goals in this study were to investigate regional heterogeneity in primary production and derive its contemporary ranges in the KS, LS, and ESS. The daily primary production rates in this study (99 ± 62, 100 ± 77, and 56 ± 35 mg C m−2 d−1 in the KS, LS, and ESS, respectively) are rather different from the values previously reported in each sea mainly because of spatial and regional differences. Among the three seas, a significantly lower primary production rate was observed in the ESS in comparison to those in the KS and LS. This is likely mainly because of regional differences in freshwater content based on the noticeable relationship (Spearman, rs = −0.714, p < 0.05) between the freshwater content and the primary production rates observed in this study. The contemporary ranges of the annual primary production based on this and previous studies are 0.96–2.64, 0.72–50.52, and 1.68–16.68 g C m−2 in the KS, LS, and ESS, respectively. Further intensive field measurements are warranted to enhance our understanding of marine microorganisms and their community-level responses to the currently changing environmental conditions in these poorly studied regions of the Arctic Ocean. |
format |
Text |
author |
Soohyun Kim Kwanwoo Kim Naeun Jo Hyo-Keun Jang So-Hyun Ahn Janghan Lee Howon Lee Sanghoon Park Dabin Lee Dean A. Stockwell Terry E. Whitledge Sang-Heon Lee |
author_facet |
Soohyun Kim Kwanwoo Kim Naeun Jo Hyo-Keun Jang So-Hyun Ahn Janghan Lee Howon Lee Sanghoon Park Dabin Lee Dean A. Stockwell Terry E. Whitledge Sang-Heon Lee |
author_sort |
Soohyun Kim |
title |
Primary Production in the Kara, Laptev, and East Siberian Seas |
title_short |
Primary Production in the Kara, Laptev, and East Siberian Seas |
title_full |
Primary Production in the Kara, Laptev, and East Siberian Seas |
title_fullStr |
Primary Production in the Kara, Laptev, and East Siberian Seas |
title_full_unstemmed |
Primary Production in the Kara, Laptev, and East Siberian Seas |
title_sort |
primary production in the kara, laptev, and east siberian seas |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/microorganisms11081886 |
op_coverage |
agris |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean Laptev Sea Kara Sea East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Kara Sea East Siberian Sea |
genre |
Arctic Arctic Ocean East Siberian Sea Kara Sea Kara-Laptev laptev Laptev Sea Nansen Phytoplankton |
genre_facet |
Arctic Arctic Ocean East Siberian Sea Kara Sea Kara-Laptev laptev Laptev Sea Nansen Phytoplankton |
op_source |
Microorganisms; Volume 11; Issue 8; Pages: 1886 |
op_relation |
Environmental Microbiology https://dx.doi.org/10.3390/microorganisms11081886 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/microorganisms11081886 |
container_title |
Microorganisms |
container_volume |
11 |
container_issue |
8 |
container_start_page |
1886 |
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1774714796768231424 |