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ISSN : 2288-1115(Print)
ISSN : 2288-1123(Online)
Korean Journal of Ecology and Environment Vol.45 No.2 pp.232-241

운문댐의 식물플랑크톤 군집 동태

경북대학교 생물학과

The Dynamic of Phytoplankton Community in Unmun Dam

Han Soon Kim*
Department of Biology, Kyungpook National University
(Manuscript received 12 April 2012, Revised 11 May 2012, Revision accepted 30 May 2012)


The seasonal changes in phytoplankton species composition, standing crops, dominantspecies, species diversity and physico-chemical characteristics in the Unmun damwere studied, from August, 2009 to April, 2010. The phytoplanktons of a total of 121taxa were identified, the composition of phytoplankton community was characterizedby a green algae and diatoms, and the quantity composition of standing crops wasdominated by diatoms and dinophyceae. The diatoms Aulacoseria granulata and bluegreenalga Anabaena planktonica in Summer, Peridinium voltzii in Autumn andAsterionella formosa in Winter to Spring were, especially, prominent. The seasonalchanges of the biomass varied from 578 cells mL-1 to 12,938 cells mL-1, and the maximumalgal density was observed in April, Asterionells formosa contributed to 88% ofthe total cell numbers. The species diversity and richness were highest during autumn,and dominance index was highest in the spring season.


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