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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study was carried out to investigate algal community structures and their correlations with environmental factors on five weir areas in the Nakdong River, South Korea. Water qualities, hydrodynamics, meteorological conditions and algal species compositions were observed in studied sites from May 2010 to Dec. 2013. Results showed that average total phosphorus concentration of 2013 was decreased by 52.4% in comparing with that from 2010 to 2011. Chlorophyll.a concentrations were positive significant with water temperature, pH, total phosphorus and total nitrogen, but is not significant with turbidity and suspended solids. Seasonal successions of algae were observed that Stephanodiscus sp. was dominant species with 65.3% of dominant frequency in studied site. Large algal biomass of the low temperature-adapted diatoms were observed during temperature range of $4{\sim}9^{\circ}C$, but large cyanobacterial biomass mainly during high temperature period ranged from $22^{\circ}C$ to $32^{\circ}C$. Microcystis sp. dominated during high water temperature in summer. The yearly correlations of algal biomass with accumulated solar radiations were not significant but seasonal correlations of summer from June to August were significant with correlation coefficient 0.33 (p<0.05). There were not significant correlations between turbidities and algal biomass. Turbidity and suspended solids concentrations were not significant correlation with algal biomass. According to the results, algal communities had strong correlation with water temperature and had partially correlation with solar radiation. For an effective management of algal blooms, water managers should survey with more long-term monitoring of various environmental factors and algal communities.
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참고문헌 (27)
참고문헌 신청
Agrawal, S. C. / 2000 / Akinete Formation in Three Blue Green Algae and One Green Algae in Relation to Light Intensity, Temperature, Heat Shock and UV Exposure / Folia Microbiologica 45:439~446
Allan, K. / 1978 / Effect of Temperature on Blue Green Algae(cyanobacteria)in Lake Mendota / Applied Environment Microbiology 36(4):572~576
Chung, J. M. / 2001 / The Structure of Phytoplankton Community in the Middle-lower Part of the Nakdong River / Journal of the Korean Environmental Science Society 10(1):41~45
Da Silva, C. A. / 2005 / Phytoplankton Assemblages in a Brazilian Subtropical Cascading Reservoir System / Hydrobiologia 537:99~109
Franklin, L. A. / 2002 / Biological Weighting Function for the Effect of UV Radiation on Carbon Partitioning in Microalgae / Journal of Phycology 38:10
Allan, K. / 1978 / Effect of Temperature on Blue Green Algae(cyanobacteria)in Lake Mendota / Applied Environment Microbiology 36(4):572~576
Chung, J. M. / 2001 / The Structure of Phytoplankton Community in the Middle-lower Part of the Nakdong River / Journal of the Korean Environmental Science Society 10(1):41~45
Da Silva, C. A. / 2005 / Phytoplankton Assemblages in a Brazilian Subtropical Cascading Reservoir System / Hydrobiologia 537:99~109
Franklin, L. A. / 2002 / Biological Weighting Function for the Effect of UV Radiation on Carbon Partitioning in Microalgae / Journal of Phycology 38:10
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