13C 추적자를 사용한 시화호 상류역에서의 식물플랑크톤 크기에 따른 1차생산성 추적에 관한 연구An Application of 13C Tracer for the Determination of Size Fractionated Primary Productivity in Upper Stream of Lake Shihwa
- Other Titles
- An Application of 13C Tracer for the Determination of Size Fractionated Primary Productivity in Upper Stream of Lake Shihwa
- Authors
- 이연정; 김민섭; 원은지; 신경훈
- Issue Date
- Mar-2006
- Publisher
- 한국하천호수학회
- Keywords
- 13C tracer method; primary productivity; size fraction; phytoplankton; Lake Shihwa
- Citation
- 생태와 환경, v.39, no.1, pp 93 - 99
- Pages
- 7
- Indexed
- KCI
- Journal Title
- 생태와 환경
- Volume
- 39
- Number
- 1
- Start Page
- 93
- End Page
- 99
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/44999
- ISSN
- 2288-1115
2288-1123
- Abstract
- Primary productivity was determined by using 13C tracer according to different cell size of phytoplank-ton through in situ incubation experiments in upper stream of the Lake Shihwa. The average concentration of chlorophyll a was 14 μg L- 1 demonstrating an eutrophic water. The ratio of POC/Chl-a was lower than 30, reflecting that the origin of organic matter might be mainly phytoplankton. The primary productivity was 93.9 mgC m-2 d-1 at St. 1, which was about 40-fold lower than the average value of the lake (3,972 mgC m-2 d-1) determined by Choi et al. (1997) before opening of gate but it was higher than the average primary productivity (3.98 mgC m-2 d-1) reported by KOWACO in 1993 before constructing dam. The fractionated size (20~53 μm) of phytoplankton community account for 51% of total primary productivity, indicating the highest assimilation rate. This study suggest that 13C tracer methodology should be applied as a useful approach for the water ecological research in the future.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING > 1. Journal Articles
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