한빛사 논문
Abstract
Yoonja Kanga,*, Yun-Ho Kangb, Jong-Kyu Kimc, Hee Yoon Kangb, Chang-Keun Kangb
aDepartment of Ocean Integrated Science, Chonnam National University, Yeosu 59626, Republic of Korea
bSchool of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju 61500, Republic of Korea
cDepartment of Naval Architecture and Ocean Engineering, Chonnam National University, Yeosu 59626, Republic of Korea
*Corresponding author
Abstract
We examined the effects of nutrient availability and turbidity on phytoplankton biomass over 9 years in Gwanyang Bay, Korea, which is an anthropogenically polluted and complex estuary. While dredging and reclamation shaped geochemical features, river discharge with low-turbidity water and sewage treatment plants contributed to nutrient loading. The replete levels of nutrients and short water-residence time suggest the inapplicability of the washout theory, whereas the presence of NH4+ suppressed the growth of phytoplankton. A reduction in the river discharge caused a concomitant decline in the loading and dilution of suspended particles. All these features led to an increase in SPM, light limitation, and NH4+ concentration. GLM estimates revealed negative effects of NH4+ and SPM on chlorophyll a over 9 years while SEM verified synergistic effects of NH4+ and SPM compared with positive effects of NO2 + NO3−. Our findings provide new insights into phytoplankton bloom dynamics in Gwangyang Bay.
논문정보
관련 링크
연구자 키워드
연구자 ID
관련분야 연구자보기
소속기관 논문보기
관련분야 논문보기
해당논문 저자보기