화진포호의 돌말 Skeletonema costatum 대발생과 영양상태

Title
화진포호의 돌말 Skeletonema costatum 대발생과 영양상태
Author
김백호
Keywords
Skeletonema costatum; spring bloom; Hwajinpo lagoon; TSI
Issue Date
2012-10
Publisher
한국하천호수학회 /The Korean Society of Limnology
Citation
Korean journal of limnology, 2012, 45(3), pp.329 - 339
Abstract
In the spring (March to June) in 2010, one diatom Skeletonema costatum occurred outbreaks in Lake Hwajinpo, one of the typical lagoons on the east coast of South Korea. We compared the characteristics of the phytoplankton community during the bloom and extinction period of S. costatum, and evaluated the water quality based on nutritional indices. Results indicate that 1) this bloom showed the highest cell density (¤105 cells mL-1) among outbreaks of S. costatum occurred Korea , 2) occurred in below or over 20℃ water temperature, and 3) was destroyed in the early summer with higher temperature than the bloom period. Water quality or trophic status of the lake was eutrophic to hypertrophic with high salinity, BOD, COD and phosphate, and low N/P ratios and transparency. Phytoplankton community in the spring bloom had a high dominance and low diversity, but rightly recovered to low dominance and high diversity in the summer season. Therefore, we temporarily conclude that the bloom of S. costatum in Hwajinpo was triggered by the extended spring drought and the reduced influx of river water, and appeal that the bloom can happen repeatedly every year.
URI
http://db.koreascholar.com/Article?code=242713http://db.koreascholar.com/Search/Journal/IssueList?pub=8&jour=11http://hdl.handle.net/20.500.11754/67325
ISSN
2288-1123; 2288-1115
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
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