First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018

Dramatic environmental changes have been recently reported in the Yellow Sea (YS), the South Sea of Korea (SS), and the East/Japan Sea (EJS), but little information on the regional primary productions is currently available. Using the <sup>13</sup>C-<sup>15</sup>N tracer meth...

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Autores principales:	Hyo-Keun Jang, Seok-Hyun Youn, Huitae Joo, Yejin Kim, Jae-Joong Kang, Dabin Lee, Naeun Jo, Kwanwoo Kim, Myung-Joon Kim, Soohyun Kim, Sang-Heon Lee
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	primary production phytoplankton Yellow Sea East/Japan Sea South Sea of Korea Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/8bd174ace6c141eba1c029e638fcf3b2
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spelling	oai:doaj.org-article:8bd174ace6c141eba1c029e638fcf3b22021-11-25T18:04:37ZFirst Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 201810.3390/jmse91112372077-1312https://doaj.org/article/8bd174ace6c141eba1c029e638fcf3b22021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1237https://doaj.org/toc/2077-1312Dramatic environmental changes have been recently reported in the Yellow Sea (YS), the South Sea of Korea (SS), and the East/Japan Sea (EJS), but little information on the regional primary productions is currently available. Using the <sup>13</sup>C-<sup>15</sup>N tracer method, we measured primary productions in the YS, the SS, and the EJS for the first time in 2018 to understand the current status of marine ecosystems in the three distinct seas. The mean daily primary productions during the observation period ranged from 25.8 to 607.5 mg C m<sup>−2</sup> d<sup>−1</sup> in the YS, 68.5 to 487.3 mg C m<sup>−2</sup> d<sup>−1</sup> in the SS, and 106.4 to 490.5 mg C m<sup>−2</sup> d<sup>−1</sup> in the EJS, respectively. In comparison with previous studies, significantly lower (<i>t</i>-test, <i>p</i> < 0.05) spring and summer productions and consequently lower annual primary productions were observed in this study. Based on PCA analysis, we found that small-sized (pico- and nano-) phytoplankton had strongly negative effects on the primary productions. Their ecological roles should be further investigated in the YS, the SS, and the EJS under warming ocean conditions within small phytoplankton-dominated ecosystems.Hyo-Keun JangSeok-Hyun YounHuitae JooYejin KimJae-Joong KangDabin LeeNaeun JoKwanwoo KimMyung-Joon KimSoohyun KimSang-Heon LeeMDPI AGarticleprimary productionphytoplanktonYellow SeaEast/Japan SeaSouth Sea of KoreaNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1237, p 1237 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	primary production phytoplankton Yellow Sea East/Japan Sea South Sea of Korea Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	primary production phytoplankton Yellow Sea East/Japan Sea South Sea of Korea Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Hyo-Keun Jang Seok-Hyun Youn Huitae Joo Yejin Kim Jae-Joong Kang Dabin Lee Naeun Jo Kwanwoo Kim Myung-Joon Kim Soohyun Kim Sang-Heon Lee First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
description	Dramatic environmental changes have been recently reported in the Yellow Sea (YS), the South Sea of Korea (SS), and the East/Japan Sea (EJS), but little information on the regional primary productions is currently available. Using the <sup>13</sup>C-<sup>15</sup>N tracer method, we measured primary productions in the YS, the SS, and the EJS for the first time in 2018 to understand the current status of marine ecosystems in the three distinct seas. The mean daily primary productions during the observation period ranged from 25.8 to 607.5 mg C m<sup>−2</sup> d<sup>−1</sup> in the YS, 68.5 to 487.3 mg C m<sup>−2</sup> d<sup>−1</sup> in the SS, and 106.4 to 490.5 mg C m<sup>−2</sup> d<sup>−1</sup> in the EJS, respectively. In comparison with previous studies, significantly lower (<i>t</i>-test, <i>p</i> < 0.05) spring and summer productions and consequently lower annual primary productions were observed in this study. Based on PCA analysis, we found that small-sized (pico- and nano-) phytoplankton had strongly negative effects on the primary productions. Their ecological roles should be further investigated in the YS, the SS, and the EJS under warming ocean conditions within small phytoplankton-dominated ecosystems.
format	article
author	Hyo-Keun Jang Seok-Hyun Youn Huitae Joo Yejin Kim Jae-Joong Kang Dabin Lee Naeun Jo Kwanwoo Kim Myung-Joon Kim Soohyun Kim Sang-Heon Lee
author_facet	Hyo-Keun Jang Seok-Hyun Youn Huitae Joo Yejin Kim Jae-Joong Kang Dabin Lee Naeun Jo Kwanwoo Kim Myung-Joon Kim Soohyun Kim Sang-Heon Lee
author_sort	Hyo-Keun Jang
title	First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
title_short	First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
title_full	First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
title_fullStr	First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
title_full_unstemmed	First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018
title_sort	first concurrent measurement of primary production in the yellow sea, the south sea of korea, and the east/japan sea, 2018
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8bd174ace6c141eba1c029e638fcf3b2
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First Concurrent Measurement of Primary Production in the Yellow Sea, the South Sea of Korea, and the East/Japan Sea, 2018

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