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이은주,조규송,김범철 ( Eun Joo Lee,Kyu Song Cho,Bomchul Kim ) 한국하천호수학회 1994 생태와 환경 Vol.27 No.4
The community of phytoplankton and zooplankton and the environmental factors were investigated in Lake Soyang in spring bloom season from January to July 1994. Phytoplankton dominants in Lake Soyang were Anabaena spp., Microcystis aeruginosa, Asterionella formosa, Asterionella gracillima, Melosira distans, Synedra acus, and Asterococcus limneticus. Zooplankton dominants were Polyarthra spp., Keratella spp., Asplanchna placentula, Bosmina coregoni and Daphnia longispina. Phytoplankton and zooplankton were clearly related each other with respect to biovolume, not to numbers. Microcystis aeruginosa rapidly increased and Daphnia longirostris disappeared in July, possibly because Microcystis aeruginosa excrete toxic substances to Daphnia longirostris. Transparency gradually decreased from January to June, but increased in July. The highest cell density of phytoplankton was observed in April, and one month later the zooplankton density reached a maximal level, implicating that spring bloom of photoplankton provided good feeding condition for zooplankton.
소양호 지류에서의 (상걸리) 식물플랑크톤 군집 구조(1984~1997)
이은주,김범철,조규송 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-
Species numbers, species diversity, chlorophyll a of phytoplankton and various physical-chemical characteristics were investigated at inlet site(Sanggul-Ri) in Lake Soyang from 1984 to 1994. Range of water temperature was 2.9℃to 30℃, transparency 0.3m to 5.5m, CHI. a 0.4mg/m³ to 631.8m/m³, total phosphorus 1.8 mg/m³ to 341.1mg/m³ and NO_(3)-N0.19mg/L to 1.47mg/L. Phytoplankton obtained from 168 samplings was identified as 68 genus ans 169 species. The species diversity of Shannon & Weaver was 0.02 to 1.02. The diversity was relative to frequency of Peridinium spp. and Anabaena spp. Total phosphorus concentration of inlet site was seven tines higher than that of dam site, The higher value of total phosphorus and the lowest vale of nitrate-nitrogen was measured when anabaena spp. and perid. inium spp. bloomed.