Long-term annual primary production in the Ulleung Basin as a biological hot spot in the East/Japan Sea
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Title
- Long-term annual primary production in the Ulleung Basin as a biological hot spot in the East/Japan Sea
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Author(s)
- Joo, HuiTae; Park, Jung Woo; Son, SeungHyun; Noh, Jae-Hoon; Jeong, Jin-Yong; Kwak, Jung Hyun; Saux-Picart, Stephane; Choi, Jung Hwa; Kang, Chang-Keun; Lee, Sang Heon
- KIOST Author(s)
- Jeong, Jin Yong(정진용)
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Alternative Author(s)
- 노재훈; 정진용
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Publication Year
- 2014-05
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Abstract
- Although the Ulleung Basin is an important biological hot spot in East/Japan Sea (hereafter the East Sea), very limited knowledge for seasonal and annual variations in the primary productivity exists. In this study, a recent decadal trend of primary production in the Ulleung Basin was analyzed based on MODIS-derived monthly primary production for a better annual production budget. Based on the MODIS-derived primary production, the mean daily primary productivity was 766.8 mg C m-2 d-1 (SD=+/- 196.7 mg C m-2 d-1) and the annual primary productivity was 280.2 g C m-2 yr-1 (SD=+/- 14.9 g C m-2 yr-1) in the Ulleung Basin during the study period. The monthly contributions of primary production were not largely variable among different months, and a relatively small interannual production variability was also observed in the Ulleung Basin, which indicates that the Ulleung Basin is a sustaining biologically productive region called as hot spot in the East Sea. However, a significant recent decline in the annual primary production was observed in the Ulleung Basin after 2006. Although no strong possibilities were found in this study, the current warming sea surface temperature and a negative phase PDO index were suggested for the recent declining primary production. For a better understanding of subsequent effects on marine ecosystems, more intensive interdisciplinary field studies will be required in the Ulleung Basin.
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ISSN
- 0148-0227
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2830
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DOI
- 10.1002/2014JC009862
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Bibliographic Citation
- JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, v.119, no.5, pp.3002 - 3011, 2014
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Publisher
- AMER GEOPHYSICAL UNION
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Keywords
- Ulleung Basin; East Sea; MODIS; primary production
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Type
- Article
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Language
- English
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Document Type
- Article
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