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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 신용식
- 발행연도
- 2017
- 저작권
- 목포해양대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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This study aims to determine the effects of tide on the physical parameters and phytoplankton size structure in Youngsan river estuary during neap tide. The Yeongsan river estuary is in South Jella Province, South Korea, located in the southwestern sea. In 1981, an artificial dike was constructed that transformed it into an artificial estuary system instead of a natural estuary. As a result, there were changes in the hydrodynamics and physicochemical properties such as tidal levels and flow rate. The sampling period was done during April 28, 2012 and August 12, 2012. The physical parameters were obtained onsite at a 2-hour interval for 24 hours. During April, there were no significant change in temperature, salinity, and phytoplankton biomass in terms with the changes in tide level. The results show that temperature decreased during ebb tide while increased during spring tide. During August, the biomass of both total chlorophyll a and net phytoplankton were increased to almost 20 times during spring tide and decreased during ebb tide while the biomass of nano phytoplankton shares a similar distribution with the change in tidal level. It had no significant distribution of contribution by size in April while in August, the net phytoplankton was dominant during the early phase followed by the nano plankton during the later phase. During April, the important controlling factor was freshwater discharge while during August, the semidiurnal tide affected the estuarine dynamics more since there was little to no freshwater discharge from the dike. The result of this study could contribute further the understanding on the phytoplankton dynamics in Youngsan river estuary.
목차
Ⅰ. 서 론 1Ⅱ. 재료 및 방법 31. 조사지역 및 시료채취 32. 분석방법 41) 물리적 환경인자 42) 식물플랑크톤 43) 상관 분석 5Ⅲ. 결 과 61. 물리적 환경인자 61) 강수량, 일조량, 담수방류량 62) 수온, 염분, 탁도 82. 식물플랑크톤 111) 식물플랑크톤 생체량 112) 기여율 143. 상관 분석 15Ⅳ. 고 찰 18Ⅴ. 결 론 21참고문헌 22
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