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ISSN : 2288-1115(Print)
ISSN : 2288-1123(Online)
Korean Journal of Ecology and Environment Vol.45 No.2 pp.242-251
DOI :

탄소 및 질소 안정동위원소비를 이용한 탐진강 수생태계 먹이망 연구

갈종구, 김민섭, 이연정, 서진원1, 신경훈*
한양대학교 해양환경과학과, 1Department of Biological & Agricultural Engineering, University of Idaho

Foodweb of Aquatic Ecosystem within the Tamjin River through the Determination of Carbon and Nitrogen Stable Isotope Ratios.

Kyung-Hoon Shin*, Jong-Ku Gal, Min-Seob Kim, Yeon-Jung Lee, Jinwon Seo1
Department of Environmental Marine Sciences, Hanyang University
1Department of Biological & Agricultural Engineering, University of Idaho
(Manuscript received 9 May 2012, Revised 8 June 2012, Revision accepted 12 June 2012)

Abstract

To investigate foodweb of aquatic ecosystem in the Tamjin River, carbon and nitrogenstable isotopes ratios of aquatic organisms, as well as environmental indicatorsbased on the water, were determined in this study. Various organisms such as fishes(Coreoperca kawamebari, Zacco platypus, Cobitis lutheri, and Pungtungia herzi) andperiphyton (epilithon and epiphyte), and particulate- and coarse particulate organicmatters (POM and CPOM) were collected in upper (Tamjin River, Yuchi Stream, andOmcheon Stream) and lower (TJ-1~TJ-5) reaches of Jangheung Dam. The nitrateconcentration and δ15N signature of POM and organisms (invertebrates and fish)were found to be more enriched toward the downstream section of the river. It wasdetermined that allochthonous matter occurring from a tributary alters the chemicalcharacter of water, as well as the isotopic signature of organisms contained therein.Attached algae (ephilithon) were identified as a base component of the benthicfoodchain further downstream.

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