Dynamics of Water Environmental Factors and Phytoplankton Before and After Inflow of Seawater in Shingwa Reservoir

시화호에서 해수유입 전.후의 수환경 요인과 식물플랑크톤 동태

  • 신재기 (한국수자원공사 수자원연구소) ;
  • 김동섭 (한국수자원공사 수자원연구소) ;
  • 조경제 (인제대학교 환경시스템학부)
  • Published : 2000.04.01

Abstract

The dynamics of water quality and phytoplankton population had examined by monthly sampling from the upper to the lower part of watergate in an artificial Shihwa Reservoir in which situated near newly cities and incustrial complex on the west coast of Korea from January 1997 to December 1998. Among environmental factors, yearly average concentration of chl-a, TN and TP seemed to eutrophic or hypertrophic conditions that ranged 146.4~245.8 $\mu\textrm{g}$/$\ell$, 1.6~2.7 mg N/$\ell$, 258~448 $\mu\textrm{g}$ P/$\ell$, 26.9~80.7 $\mu\textrm{g}$/$\ell$, 1.0~2.4 mgN/$\ell$ and 74~239 $\mu\textrm{g}$P/$\ell$ respectively. Water quality was extremely deteriorated to consistently accumulation into inner reservoir by load of pollutants from autochthonous and allochthonous until early July 1997 after embankment. Water pollution of Shihwa Reservoir was remarkble on the biological condition with largely persistent bloom of phytoplankton and increase rate of standing crops was 2.4/yr. The development trend of phytoplankton in water ecosystem were closely related to increse and decrease of physico-chemical factors and those scale seemed to control by nutrient contents. Inflow of seawater into reservoir to object of repair of water quality. As to see dominant species, composition of those composed to mostly freshwater algae before inflow of seawater such as Selenastrum capricornutum of green algae, cyclotella atomus, C. meneghiniana of diatom and Microcystis spp. of blue-green algae and the other hand brackish algae were dominated after inflow of seawater such as Chaetoceros dicipiens, Skeletonema costatum of diatom, Dinophysis acuminata, Gymnodinium mikimotoi, G. sanguineum, Gyrodinium spirale, Prorocentrum minmum of dinoflagellate and Eutreptiella gymnastica of euglenoid. Moreover, small flagellates including Chroomonas spp. of cryptomonad were abundant throughout the year. The cause of water deterioration during fill of the freshwater were complexly supported with extra and intra parameters. The variation pattern of phytoplankton were related to water temperature and salinity by inflow of seawater based to plentiful nutrients. The dynamics of phytoplankton were assessed to ecosystem that clearly condition of dominant by unique or a few angel species seasonally.

Keywords

Shihwa reservoir;water pollution;environmental factors;phytoplankton;hypertrophic

References

  1. Ocean Research v.19 A study of ecological succession of macrobenthic community in an artificial lake of Shihwa on the west coast of Korea : An assessment of ecological impact by embankment Lee, J. H.;J. H. Cha
  2. '96년도 시화호 수질현황 및 조류제어 연구보고서 한국수자원공사
  3. 한국해양학회지(바다) v.2 시화호에서 암모니아와 납의 저층용출 한명우;박용철;허성회
  4. 한국해양학회지(바다) v.2 시화방조제 건설 이후 시화호 다모류의 종조성 및 서식 밀도 변화 류종성;최진우;강성길;고철환;허성회
  5. Standard methods for the examination of water and wastewater, (18th ed.) APHA;AWWA;WEF
  6. Marine phytoplankton: a guide to naked flagellates and coccolithophorids Thomas, C. R.
  7. Korean J. Limnol. v.30 Analysis of water quality problems in the Shihwa Lake, Korea Seo, D. I.
  8. '93 시화지구 개발 시화 공업단지 조성사업 환경관리 조사 한국수자원공사
  9. 시화호 수질개선 종합관리대책 기본계획 보고서(요약) 한국수자원공사
  10. 시화호에서 해수 유입 전·후 식물플랑크톤 동태 신재기;김동섭
  11. 한국해양학회지(바다) v.2 과영양성 시화호에서 박테리아의 분포 및 성장 최동한;강석원;송기돈;허성회;조병철
  12. 생태계분야 시화호의 환경변화조사 및 보전대책 수립에 관한 연구(1-3차년도) 한국해양연구소
  13. Arch. Hydrobiol. v.89 Eutrophication parameters and trophic state indices in 30 Swedish waste-receiving lakes Forsberg, C.;S. O. Ryding
  14. 수질오염 공정시험법 환경부
  15. 시화호에서 식물플랑크톤 개체군의 계절 변동 신재기;김동섭;조경제
  16. 한국해양학회지(바다) v.2 시화호 산화-환원 환경하의 용존 유,무기 화합물의 생지화학적 연구 박용철;박준건;한명우;손승규;김문구;허성회
  17. Identifying marine diatoms and dinoflagellates Thomas, C. R.;G. R. Hasle;E. E. Syvertsen;K. A. Steidinger;K. Tangen
  18. 해양연구 v.18 시화인공호수 입자성 침강유기물 홍기훈;박선규;홍대벽;이상한
  19. 한국해양학회지(바다) v.2 인공호수 시화호와 주변해역의 생태계 연구 : 서문 허성회;오임상
  20. Assessment and Control Eutrophication of Waters: Monitoring Vollenweider, R. A.;J. S. Kerekes
  21. Bulletin of Fisheries Research Board of Canada A Practical Handbook of Seawater Analysis Strickland, J. D.;T. R. Parsons
  22. 한국해양학회지(바다) v.2 시화호와 인근 해역의 동물플랑크톤 분포로 본 시화호의 생태적 안정성 박철;허성회
  23. Red-tide organisms in Japan, An illustrated taxonomic guide Fukuyo, Y.;H. Takano;M. Chihara;K. Matsuoka
  24. Aquaculturists' guide to harmful Australian microalgae Hallegraeff, G. M.
  25. 수환경정책자료집 환경부
  26. 한국해양학회지(바다) v.2 시화호와 주변해역 식물플랑크톤의 대증식과 일차 생산력에 관한 연구 최중기;이은희;노재훈;허성회
  27. 호소 만입부에서의 조류 대량증식 제어기술 개발(III) 국립환경연구원
  28. The pennate diatoms: A translation of Hustedt's "Die Kieselalgen, 2. Teil" published by Jensen Jensen, N. G.
  29. 한국연안의 적조: 최근 적조의 발생원인과 대책 국립수산진흥원
  30. 시화호 수질개선대책에 따른 수질회복 추이 김동섭;박옥환;박천홍;박덕준
  31. 한국해양학회지(바다) v.2 시화호 수질 악화에 따른 시화호와 주변 해역 어류의 종조성 변화 이태원;문형태;허성회
  32. 시화호 수질회복 추이에 관한 연구 한국수자원공사
  33. 해양연구 v.20 시화호 해수 및 표층 퇴적물의 생지화학적 연구 김은수;김경태;조성록
  34. 시화 담수호 수질보전 대책 수립 조사 보고서 한국수자원공사;농어촌진흥공사