KOPRI Repository

Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries, South Korea

Cited 1 time in wos
Cited 2 time in scopus
Metadata Downloads
Title
Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries, South Korea
Other Titles
금강과 섬진강 하구역에서 탄소 안정동위원소 및 방사성동위원소를 활용한 입자성 유기물 특성 연구
Authors
Kang, Sujin
Kim, Jung-Hyun
Ryu, Jong-Sik
Shin, Kyung-Hoon
Subject
Environmental Sciences & Ecology; Marine & Freshwater Biology
Keywords
Particulate organic carbon; Estuary dam; Carbon isotopes; Geum estuary; Seomjin estuary
Issue Date
2020-01
Citation
Sujin Kang, et al. 2020. "Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries, South Korea". MARINE POLLUTION BULLETIN, 150(1): 110719-110725.
Abstract
We investigated the source, composition, and reactivity of particulate organic carbon (POC) in two contrasting Korean estuary systems, a closed estuary (Geum) (i.e., with an estuary dam at the river mouth) and an open (Seomjin) estuary. A dual isotope (δ13CPOC and Δ14CPOC) approach was applied to surface water samples collected along a salinity gradient in August 2016. Our results indicate that phytoplankton-derived POC was the main contributor to the total POC pool in the reservoir of the Geum estuary, while terrestrial-derived POC predominated the upper Seomjin estuary. A simple binary mixing model using Δ14CPOC revealed a higher modern POC contribution (8790%) in the Geum estuary reservoir than that (77%) of the upper Seomjin estuary. Accordingly, it appears that an estuary dam can alter the source and reactivity of POC in a reservoir, which can be transferred to the adjacent coastal ecosystem.
URI
https://repository.kopri.re.kr/handle/201206/11770
DOI
http://dx.doi.org/10.1016/j.marpolbul.2019.110719
Appears in Collections  
2019-2019, Organic carbon transfer across the river-sea interface: a case study in Geum and Sumjin river systems (19-19) / Kim, Junghyun (PN19100)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse