Why is the southwest the most productive region of the East Sea/Sea of Japan? SCIE SCOPUS

Cited 75 time in WEB OF SCIENCE Cited 87 time in Scopus
Title
Why is the southwest the most productive region of the East Sea/Sea of Japan?
Author(s)
Yoo, Sinjae; Park, Jisoo
Alternative Author(s)
유신재; 박지수
Publication Year
2009-09
Abstract
The East Sea/Sea of Japan is a moderately productive sea that supports a wealth of living marine resources. Of the East Sea subregions, the southwest has the highest productivity. Various authors have proposed coastal upwelling, the Tsushima Current, the Changjiang Dilute Water, eddies, or discharge from the Nagdong River as potential sources of additional nutrients. In this paper, we propose, using satellite data from 1998 to 2006, that the biological productivity of the southwestern region is enhanced mainly by wind-driven upwelling along the Korean coast. Firstly, the climatology of seasonal patterns suggests that the enhanced chlorophyll a along the Korean coast is of local origin. Secondly, coastal upwelling is frequent in all seasons except winter. For example, along the coast of the Ulgi region, enhanced chlorophyll a due to coastal upwelling was observed for 25-92% of the time between Jun and Sep in the period 1998-2006. Thirdly, the advection of upwelled water through various pathways to the deeper basin was observed. Fourthly, there appeared to be a strong correlation between the interannual chlorophyll a variations of the coastal upwelling regions and the Ulleung Basin. The chlorophyll a patterns of both regions were closely related to the wind pattern in the upwelling regions, but not to that in the Ulleung Basin. Finally, changes in advection pathways also appeared to affect the productivity of the Ulleung Basin. Since 2004, there has been a shift in the pathways of upwelled water, and consequent increases in chlorophyll a in the Ulleung Basin were observed. This last observation requires further investigation. (C) 2009 Elsevier B.V. All rights reserved.
ISSN
0924-7963
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4260
DOI
10.1016/j.jmarsys.2009.02.014
Bibliographic Citation
JOURNAL OF MARINE SYSTEMS, v.78, no.2, pp.301 - 315, 2009
Publisher
ELSEVIER SCIENCE BV
Subject
PLANKTONIC COMMUNITY STRUCTURE; ORGANIC-CARBON FLUX; EAST/JAPAN SEA; INTERANNUAL VARIABILITY; ULLEUNG BASIN; ALASKA; GULF; ACCUMULATION; CIRCULATION; EDDIES
Keywords
Coastal upwelling; East Sea; Phytoplankton; Monsoon wind; Ocean color
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
ELSEVIER SCIENCE BV
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse