The Characteristics of Phytoplankton Distributions Related to the Oceanographic Conditions in the Southern Waters of the Korean in Summer, 2004

2004년 하계 남해안 해황과 식물플랑크톤의 분포 특성

  • Oh, Hyun-Ju (South Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Lee, Yong-Hwa (East Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Yang, Jun-Hyuk (South Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Kim, Seung-Han (South Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
  • 오현주 (국립수산과학원 남해수산연구소) ;
  • 이용화 (국립수산과학원 동해수산연구소) ;
  • 양준혁 (국립수산과학원 남해수산연구소) ;
  • 김승한 (국립수산과학원 남해수산연구소)
  • Received : 2007.07.19
  • Accepted : 2007.08.16
  • Published : 2007.09.30

Abstract

We analyze relation between phytoplankton and marine environment based on data such as water temperature, phytoplankton, zooplankton, nutrient collected from the southern coast of Korea in the summer, 2004. The water temperature range of the study area was $20.5{\sim}31.5^{\circ}C$ and there was formed a water temperature frontal zone from $20.5^{\circ}C$ to $25.0^{\circ}C$ in Geojedo southern coast and Geomundo island. Especially, high density of nutrients were shown in the southern coast of Geojedo in which water temperature frontal zone was formed strongly, the concentration of chlorophyll-a which is appeared at the highest rate among the phytoplankton pigments was shown more than $0.4{\mu}g/L$ in the inside of frontal zone and zooplankton biomass was than $500mg/m^2$ in that area.

2004년 하계 한국의 남해안에서 수온, 식물플랑크톤, 동물플랑크톤, 영양염류 등 자료를 분석하여 해양환경과 식물플랑크톤의 관계를 분석하였다. 조사해역에서 수온은 $20.5{\sim}31.5^{\circ}C$범위로 거제 남부해역 및 거문도 해역에서 $20.0{\sim}25.0^{\circ}C$의 수온전선대가 형성되었으며, 특히, 수온전선대가 강하게 형성된 거제도 남부해역에서는 영양염류의 농도가 높았으며, 식물플랑크톤 색소 중 가장 높은 비율로 나타나는 클로로필-a의 농도가 전선역의 내측에서 $0.4{\mu}g/L$ 이상의 분포를 보였고, 동물플랑크톤 현존량은 $500mg/m^2$ 이상의 분포를 보였다.

Keywords