Biogeochemical properties of sinking particles in the southwestern part of the East Sea (Japan Sea) SCIE SCOPUS

Cited 13 time in WEB OF SCIENCE Cited 13 time in Scopus
Title
Biogeochemical properties of sinking particles in the southwestern part of the East Sea (Japan Sea)
Author(s)
Kim, Minkyoung; Hwang, Jeomshik; Rho, TaeKeun; Lee, Tongsup; Kang, Dong-Jin; Chang, Kyung-Ii; Noh, Suyun; Joo, HuiTae; Kwak, Jung Hyun; Kang, Chang-Keun; Kim, Kyung-Ryul
KIOST Author(s)
Rho, TaeKeun(노태근)Kang, Dong-Jin(강동진)
Publication Year
2017-03
Abstract
This study investigates the biological pump system in the East Sea (Japan Sea) by conducting an analysis of the total particle flux, biogenic material composition, and carbon isotope ratios of sinking particles. The samples were collected for one year starting from March 2011 using time-series sediment traps deployed at depths of 1040 m and 2280 m on bottom-tethered mooring at Station EC1 (3733 degrees N, 131.45 degrees E; 2300 m water depth) in the Ulleung Basin (UB), southwestern part of the East Sea. The temporal variation in the particulate organic carbon (POC) flux at 1000 m shows a good relationship with the primary production in the corresponding surface water. The ratio of POC flux at 1000 m to satellite-based primary production in the corresponding region in the UB was similar to 3%, which is comparable to the values of 2 to 5% estimated from previous studies of other part of the East Sea. The lithogenic material accounted for >17% of the sinking particles at 1000 m and for a larger fraction of 40 to 60% at 2280 m. The radiocarbon contents of the sinking POC at both trap depths imply the additional supply of aged POC, with a much greater contribution at 2280 m. Overall, the particle flux in the deep interior of the East Sea appears to be controlled by the supply of complex sources, including aeolian input, the lateral supply of resuspended sediments, and biological production in the surface water. (C) 2016 Elsevier B.V. All rights reserved.
ISSN
0924-7963
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1283
DOI
10.1016/j.jmarsys.2016.11.001
Bibliographic Citation
JOURNAL OF MARINE SYSTEMS, v.167, pp.33 - 42, 2017
Publisher
ELSEVIER SCIENCE BV
Subject
SULFATE REDUCTION RATES; ULLEUNG INTERPLAIN GAP; BIOLOGICAL HOT-SPOT; EAST/JAPAN SEA; ORGANIC-CARBON; SEDIMENT TRAPS; KOREA STRAIT; BASIN; ACCUMULATION; VARIABILITY
Keywords
Particulate organic carbon; Biological pump; Sediment trap; Radiocarbon; Sediment resuspension; East Sea (Japan Sea)
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Chemical Oceanography,Dissolved Gas in seawater,Development of Instruments,화학해양학,해수용존기체,관측장비개발

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