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득량만 남서해역 식물플랑크톤 군집의 시ㆍ공간적 분포특성
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  • 득량만 남서해역 식물플랑크톤 군집의 시ㆍ공간적 분포특성
  • On the Spatio-temporal Distribution of Phytoplankton Community in the Southwestern Parts of Deukryang Bay, South Korea
저자명
윤양호,김동근
간행물명
환경생물
권/호정보
2003년|21권 1호|pp.8-17 (10 pages)
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한국환경생물학회
파일정보
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The spatio-temporal distribution and seasonal fluctuations of phytoplankton community were carried out in the Southwestern parts of Deukryang Bay of the Korean South Sea from July 1997 to January 1998. A total of 60 species of phytoplankton belonging to 41 genera was identified. In the southwestern parts of Deukryang Bay seasonal succession in dominant species; Eucampia zodiacus, and Chaetoceros spp. in summer, Nitzschia longissima, Chaetoceros curvisetus and Bacillaria paxillifera in autumn, Skeletonema costatum and B. paxillifera in winter, were very predominant. The community structure of phytoplankton in the southwestern parts of Deukryang Bay appeared to be diverse in species composition, and diatoms were most dominant through the year. Phytoplankton standing crops fluctuated with an annual mean of $1.2{ imes}10^5$ cells $L^{-1}$ between the lowest value of $8.0{ imes}10^3$ cells $L^{-1}$ in January and the highest value of $6.9{ imes}10^5$cells $L^{-1}$ by Nitzschia longissima in January. Densities of the phytoplankton cell number by the samples of the southwestern parts of Deukryang Bay ranged from $1.1{ imes}10^4$ cells $L^{-1}$ to $1.3{ imes}10^5$ cells $L^{-1}$ with the mean value of $4.1{ imes}10^4$ cells $L^{-1}$ in summer, from $1.0{ imes}10^4$ cells $L^{-1}$ to $6.9{ imes}10^5$ cells $L^{-1}$ with mean of $1.8{ imes}10^5$ cells $L^{-1}$ in autumn, from $8.0{ imes}10^3$ cells $L^{-1}$ to $4.6{ imes}10^5$ cells $L^{-1}$ with mean $1.6{ imes}10^5$ cells $L^{-1}$ in winter. That is to say, phytoplankton standing crops was high in low temperature seasons, while low in high temperature seasons. Chlorophyll a concentration fluctuated between 1.08 mg $m^{-3}$ and 21.6 mg $m^{-3}$ in January. In the southwestern parts of Deukryang Bay temporal change in chl-a concentration was not apparent. But chl-a concentration was high during a year. Therefore, phytoplankton production in the southwestern parts of Deukryang Bay could be very high year-round.