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영흥도 조간대 갯벌 저서미세조류의 생태적 중요성; 안정동위원소 분석 활용

Title
영흥도 조간대 갯벌 저서미세조류의 생태적 중요성; 안정동위원소 분석 활용
Other Titles
Ecological Importance of Benthic Microalgae in the Intertidal Mud Flat of Yeongheung Island; Application of Stable Isotope Analysis (SIA)
Author
신경훈
Keywords
stable isotope analysis (SIA); Yeongheung Island; benthic microalgae; mud flat
Issue Date
2016-06
Publisher
한국하천호수학회
Citation
생태와 환경, v. 49, No. 2, Page. 80-88
Abstract
In order to reconstruct a benthic foodweb structure and assess the role of benthic microalgaes as a diet source for benthos, we analyzed the carbon and nitrogen stable isotopes of diverse benthos (bivalves, crustaceans, gastropods and fishes) and potential diets (particulate organic matter, sedimentary organic matter, benthic microalgae, seagrass, and macroalgaes) in the intertidal mudflat surrounding Yeongheung Island. The δ13C values of the diets indicated wide ranges (- 26.5‰ to - 8.4‰) while benthos showed a small range of δ13C values (-12.1‰ to - 17.8‰), although they were in the same range. Except for green algaes among the macroalgaes as well as sedimentary organic matter, δ15N values of the diet candidates (5.7±1.0‰) were lighter in comparison to those of the benthos (11.8±1.9‰). Based on the δ13C and δ15N data, the benthos were classified into 3 groups, indicating a different diet and trophic position. But benthic microalgae is the most important diet source for all three benthos groups based on their stable isotope ratios, suggesting benthic microalgae should be a main diet to the intertidal ecosystem. Hence this study highlights that the biomass of benthic microalgae as biological resource should be evaluated for the management of the intertidal ecosystem of Yeongheung Island.
URI
http://db.koreascholar.com/Article?code=316077http://repository.hanyang.ac.kr/handle/20.500.11754/102470
ISSN
2288-1123; 2288-1115
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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