Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Interrelation Between Water Quality and Community Structure of Phytoplankton around the Season of Red Tide Outbreak off the Coast of Tongyeong Area, 2002

2002년 통영연안의 적조발생전후의 식물플랑크톤 군집구조의 특성

  • 강양순 (국립수산과학원 양식환경연구소) ;
  • 권정노 (국립수산과학원 양식환경연구소) ;
  • 손재경 (국립수산과학원 양식환경연구소) ;
  • 정창수 (국립수산과학원 양식환경연구소) ;
  • 홍석진 (국립수산과학원 양식환경연구소) ;
  • 공재열 (부경대학교 식품생명공학부)
  • Published : 2003.10.01
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Abstract

To understand interrelations between water quality and community structure of phytoplankton around the season of red tide outbreak, field surveys were conducted 10 times off the coast of Tongyeong from July to September in 2002. Because of heavy rain for 10 days, environmental conditions were changed and differed from the previous year, sustaining high nutrients and low salinity. During the surveyed period 48 species of 29 genera of phytoplankton were identified, and diatom and dinoflagellate was $51.8\%\;and\;38.0\%,$ respectively, At the time of bloom, cell counts of C. polykrikoides were outstanding but the number of species remarkably decreased. There were striking differences in dominant species among research stations before the bloom. Diatoms were the most dominant group in the whole study area in that period. Diversity and evenness index were highest just before outbreak of the red tides (2 Aug, 2002). During the bloom (4 Aug.), it decreased to the lowest value and then began to increase slowly. The result of PCA on water quality vs phytoplankton biomass showed that the land loads of nutrient may be the main cause of summer rally of phytoplankton biomass.

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References

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