한국 남해 동부 연안 해역에서 홍수기와 갈수기 동안 수질환경 특성과 변동 = Variations and Characters of Water Quality during Flood and Dry Seasons in the Eastern Coast of South Sea, Korea

다국어 초록 (Multilingual Abstract)

Physiochemical characters of sea waters during summer flood- and winter dry-seasons and their spatial variations were investigated along the coastal area off the eastern South Sea, Korea. Using the hierarchical clustering method, in this study, we present comprehensive analyses of coastal waters masses and their seasonal variations. The results revealed that the coastal water of the study area was classified into six water masses (A to F). During summer season, the surface water was mainly occupied by the coastal pseudo-estuarine water (water mass B) with low salinity and high nutrients and the river-dominated coastal water (water mass C) with low nutrients, respectively. The bottom water was dominated by cold water (water mass D) with very low temperature, high salinity and high nutrients, compared to masses of surface water. Notably, the water mass B, with high concentrations of nutrients (silicate and nitrogen) and low salinity, which is strongly controlled by the water quality of river freshwater, seems to play an important role in controlling the water quality and further regulating physical processes on ecosystem in the eastern coastal area of South Sea. The water mass D (bottom cold water) coupled with a strong thermocline, which exists in near-bottom layer along the western margin of Korea Strait, has a low temperature, pH and DO, but abundant nutrients. This water mass disappears in winter owing to strong vertical mixing, and subsequently may act as a pool for nutrients during winter dry-season. On the other hand, vertically well-mixed water column during the winter season was typically occupied by the Tsushima (water mass E) and the coastal water (water mass F) with a development of coastal front formed in a transition zone between them. These winter water masses were characterized by low nutrient concentration and balance in N/P ratio, compared with summer season with high nutrient concentrations and strong N-limitation. Accordingly, the analysis of water masses will help one to better chemical and biological processes in coastal area. In most of the study area, characteristically, the growth of phytoplankton community is limited by nitrogen, which is clearly different with coastal environment of West Sea of Korea, with a relative lack of phosphorus. It showed the western and the southern coasts in Korea are substantially different from each other in environmental and ecological characteristics.

참고문헌 (Reference)

1 국토해양부, "해양생태계기본조사-서해 남부 해역"

2 국토해양부, "해양생태계기본조사-남해 동부 해역"

3 승영호, "한반도 주변의 수괴와 해수순환" 27 : 324-331, 1992

4 이재성, "한국남부 연안의 영양상태 평가와 저층 경계면의 중요성" 한국해양학회 9 (9): 179-195, 2004

5 임동일, "한국 연안역 수질성분들(COD, DIN, DIP, Chlorophyll-a)의 해역별 농도 특성과 등급화: 통계적 접근" 한국해양과학기술원 33 (33): 13-20, 2011

6 임동일, "한국 서해 경기만 연안역에서 수질환경의 시.공간적 변화 특성과 조절 요인" 한국해양과학기술원 29 (29): 135-153, 2007

7 김철호, "한국 동해안에 출현하는 냉수괴의 특성과 기원" 18 : 73-83, 1983

8 최용규, "한국 남해의 갈수기와 풍수기에 따른 해양 환경 특성" 한국환경과학회 16 (16): 459-466, 2007

9 김동수, "한국 남해 중부 연안 어장에서의 수괴의 계절변화" 36 : 105-116, 2000

10 강영실, "한국 남해 연안전선의 생물-화학적 특성 및 영양학 구조" 32 : 22-29, 1999

11 임동일, "한국 남해 연안역에서 여름 홍수기에 형성된 연안 염하구 환경의 물리-화학적 특성" 한국해양학회 8 (8): 9-163, 2003

12 임동일, "한국 남해 마산만에서 수질환경의 계절적 변동과 기초생산 제한인자" 한국해양과학기술원 29 (29): 349-366, 2007

13 최현용, "한국 남해 나로도와 소리도 사이 해역의 1998년 하계 해황 및 적조 소멸과의 관계" 6 : 49-62, 2001

14 서영상, "하계 동해 연안역에서 발생하는 냉수역의 시공간적 변동 특성" 34 : 435-444, 2001

15 이진환, "통영 바다목장 해역에서 식물플랑크톤군집에 미치는 환경요인의 영향" 한국해양과학기술원 27 (27): 15-24, 2005

16 장승민, "제주도 기온과 주변해역 해수면 온도와의 상관관계에 관한 연구" 한국해양환경·에너지학회 9 (9): 55-62, 2006

17 양재삼, "전남 고흥 해역의 유해성 적조의 발생연구, 물리-화학적인 특성" 5 : 16-26, 2000

18 정해진, "전남 고흥 해역의 유해성 적조의 발생연구 2: 1997년도 식물플랑크톤의 시공간적 변화" 5 : 27-36, 2000

19 이동섭, "여름과 겨울철 남해의 영양염 분포 특성" 4 : 371-382, 1999

20 권기영, "섬진강 하구역에서 염분경사에따른 영양염의 거동" 34 : 199-206, 2001

21 강미란, "서해 함평만에서 조위변화에 따른 영양염 변동" 한국해양환경·에너지학회 12 (12): 202-208, 2009

22 이찬원, "남해연안 패류양식장의 부영양화 특성" 3 : 24-33, 2000

23 한국해양연구원, "남해 특별관리해역 생태계 건강지수개발" 한국해양연구원 395-, 2012

24 윤양호, "남해 중부해역 표층퇴적물 유기물의 시공간 분포특성" 한국해양환경·에너지학회 9 (9): 203-215, 2006

25 김영택, "남해 연안수의 수온상승과 수온전선후퇴와의 상관성" 120-122, 2010

26 조은섭, "남서해역의 유해성 적조생물 Cochlodinium polykrikoides Margalef 모니터링을 위한 환경특성과 식물플랑크톤 군집 동태" 한국환경과학회 14 (14): 177-184, 2005

27 "기상청"

28 김정배, "가막만 빈산소 수괴의 특성" 한국해양환경·에너지학회 9 (9): 216-224, 2006

29 Kim BK., "The study of the oceanographic conditions and fishing grounds of purse-seine in the southern sea of Korea" 30 : 7-29, 1982

30 Brzezinski M. A., "The Si:C:N ratio of marine diatoms: interspecific variability and the effect of some environmental variables" 21 : 347-357, 1985

31 Cho KD, "Structure of shelf front and distribution of planktons in the eastern part of the Yellow Sea" 16 : 316-329, 1983

32 Yin K, "Shift from P to N limitation of phytoplankton growth across the Pearl River estuarine plume during summer" 221 : 17-28, 2001

33 양한섭, "Ra 동위체로 본 하계동해 남부 연안해역에 출현하는 10℃ 이하 냉수괴의 기원" 27 : 404-412, 1994

34 Kiorboe T, "Plankton dynamics and larval herring growth, drift and survival in a frontal area" 44 : 205-219, 1988

35 Pearsall WH., "Phytoplankton in English lakes. I. The proportions in the waters of some dissolved substances" 20 : 241-262, 1930

36 Tilman D, "Phytoplankton community ecology: the role of limiting nutrients" 13 : 349-372, 1982

37 Harrison PJ, "Phosphate limitation in estuarine and coastal waters of China" 140 : 79-87, 1990

38 Twomey L, "Nutrient limitation of phytoplankton in seasonally open bar-built estuary: Wilson Inlet, Western Australia" 37 : 16-29, 2001

39 Hecky RE, "Nutrient limitation of phytoplankton in freshwater and marine environments: a review of recent evidence on the effect of enrichment" 33 : 796-822, 1998

40 Fisher TR, "Nutrient limitation of phytoplankton in Chesapeake Bay" 82 : 51-63, 1992

41 Howarth RW, "Nitrogen fixation in freshwater, estuarine, and marine ecosystem. 2. Biogeochemical controls" 33 : 688-701, 1988

42 U. S. EPA, "National Estuary Program Coastal Condition Report" Environmental Protection Agency 445-, 2006

43 Floodgate GD, "Microbiological and zooplankton activity at a front in Liverpool Bay" 290 : 133-136, 1981

44 Kim WH, "Microbiogenic sediments in the Nagdong Estuary, Korea" 15 : 34-48, 1980

45 Diaz RJ, "Marine benthic hypoxia: A review of its ecological effects and gehavioral responseds of benthic macrofauna" 33 : 245-303, 1995

46 Lee YS, "Limiting nutrients of phytoplankton community in Hiroshima Bay Japan" 30 : 1490-1494, 1996

47 Wong GTF, "Excess nitrate in the East China Sea" 46 : 411-418, 1998

48 Park SC, "Evolution of late Quaternary deposits on the inner shelf of the South Sea of Korea" 10 : 145-149, 1996

49 Hashimoto T, "Effect of nutrient limitation on abundance and growth of phytoplankton in a Japanese Pearl farm" 258 : 43-50, 2003

50 Humborg C, "Effect of Danube River dan on Black Sea biogeochemistry and ecosystem structure" 386 : 385-388, 1997

51 Nakata K, "Differences in food availability for Japanese sardine larvae between the frontal region and waters on the offshore side of Kuroshio" 4 (4): 68-79, 1995

52 이영식, "Cochlodinium polykrikoides 적조 발생기작과 대책 1. Cochlodinium polykrikoides 적조발생과 소멸의 환경특성." 6 : 259-264, 2001

53 Yang HS, "Characteristics of spatio-temporal variation of the water quality in the lower Keum River" 23 : 225-237, 1990

54 Gong Y., "A study on the south Korea coastal front" 6 : 25-36, 1971

55 승영호, "8월의 한국 동안에서의 수온분포에 관한 역학적 고찰" 9 : 52-58, 1974

56 임월애, "2008년 남해동부해역의 Cochlodinium polykrikoides 적조발생 특성" 한국해양학회 14 (14): 155-162, 2009