We investigated the spatiotemporal variations of dissolved inorganic nutrients along a saline gradient to estimate nutrient fluxes in the Seomjin River estuary during dry (March 2005, March 2006, March 2007, and March 2008) and rainy seasons (August 2005, July 2006, July 2007, and July 2008). Dissolved inorganic nitrogen concentrations were similar in the endmembers of freshwater for the rainy and dry seasons. In contrast, the concentrations of dissolved inorganic phosphate and silicate in the rainy season were approximately 2-3 times higher than those in the dry season. River discharge was approximately 10 times higher in the rainy season (212 m3 sec-1) than in the dry season (21 m3 sec-1). The fluxes of dissolved inorganic nitrogen, phosphate, and silicate were 2.91, 0.004, and 2.51 tons day-1 in the dry season and 7.45, 0.421, and 30.5 tons day-1 in the rainy season, respectively. Although the range of nutrient concentrations were similar to previous results from investigations in the Seomjin River estuary, the nutrient fluxes were differed according to river discharge for different survey periods.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 연구지역
  2.2. 현장조사 및 시
  2.3. 영양염의 플럭스 추정모델
 3. 결과 및 고찰
  3.1. 이화학 성분 분포
  3.2. 영양염 및 엽록소 a 분포
  3.3. 섬진강 하구를 통한 영양염 플럭스
 4. 결 론
 참 고 문 헌

• 박미옥(국립수산과학원 어장환경과, 해양환경관리공단 해양수질팀) | Mi-Ok Park (Marine Environment Research Division, National Fisheries Research & Development Institute, Marine Environment Monitoring Team, Korea Marine Environment Management Corporation)
• 이재성(국립수산과학원 어장환경과, 한국해양과학기술원 기기검교정․분석센터) | Jae-Seong Lee (Marine Environment Research Division, National Fisheries Research & Development Institute, Marine Instrument Service & Calibration Department, Korean Ocean Research and Development Institute)
• 김성수(국립수산과학원 어장환경과, 해양환경관리공단 해양수질팀) | Seong-Soo Kim (Marine Environment Research Division, National Fisheries Research & Development Institute, Marine Environment Monitoring Team, Korea Marine Environment Management Corporation)
• 김성길(국립수산과학원 어장환경과, 해양환경관리공단 해양수질팀) | Seong-Gil Kim (Marine Environment Research Division, National Fisheries Research & Development Institute, Marine Environment Monitoring Team, Korea Marine Environment Management Corporation)
• 이용우(해양환경관리공단 해양수질팀) | Yong-Woo Lee (Marine Environment Monitoring Team, Korea Marine Environment Management Corporation) Corresponding author
• 이석모(부경대학교 생태공학과) | Suk-Mo Lee (College of Ecological Engineering, Pukyong National University)