지원사업
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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초록· 키워드
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To confirm the relationship between climate change and Stephanodiscus in Mulgeum station of Nakdong River, Korea, this study was conducted. The temperature in crease by climate change was observed in the study site, where the temperature was gradually increased in most seasons, except for summer season. The mass proliferation of Stephanodiscus constantly appeared in every year, especially between November and March, and when Stephanodiscus abundance was above 90% in phytoplankton biomass. Among this period, phytoplankton biomass was high related with water temperature ($r^2$=0.249, P<0.01) than nutrient factors such as nitrogen and phosphorus in the study site. Finally, temperature by climate change can be regarded as the affecting factor for chl. a variation, because temperature was strongly related with water temperature ($r^2$=0.748, P<0.01). From 1997 to 2010, the annual maximum phytoplankton biomass was recorded in the range of temperature from $4.8^{\circ}C$ to $8.4^{\circ}C$, and the range was regarded as the temperature condition for the optimal growth of Stephanodiscus in the study site. On the optimal growth temperature, the trend of monthly average temperature corresponded to the trend of chl. a variation from November to March. In future, the increase of temperature by climate change can prolong Stephanodiscus blooming period in winter and spring seasons.
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참고문헌 (20)
참고문헌 신청
Admiraal, W. / 1994 / Seasonal Variation in Composition and Production of Planktonic Comunities in the Lower River Rhine / Freshwater Biology 32:519~531
Cho, K. J. / 1995 / Persistent Blooms of Diatoms Stephanodiscus Hantzschii F. Tenuis and S. Parvus in the Naktong River / Korean Journal of Phycology 10:91~96
Cho, K. J. / 1997 / Dynamics of Inorganic N･P Nutrient from Midstream to Downstream of the Naktong River / Korean Journal of Limnology 30:85~95
Grover, J. P. / 2006 / Seasonal Dynamics of Phytoplankton in Two Warm Temperate Reservoirs : Association of Taxonomic Composition with Temperature / Journal of Plankton Research 28:1~17
Ha, K. / 2002 / Spatial and Temporal Dynamics of Phytoplankton Communities Along a Regulated River System, the Nakdong River, Korea / Hydro-biologia 470:235~245
Cho, K. J. / 1995 / Persistent Blooms of Diatoms Stephanodiscus Hantzschii F. Tenuis and S. Parvus in the Naktong River / Korean Journal of Phycology 10:91~96
Cho, K. J. / 1997 / Dynamics of Inorganic N･P Nutrient from Midstream to Downstream of the Naktong River / Korean Journal of Limnology 30:85~95
Grover, J. P. / 2006 / Seasonal Dynamics of Phytoplankton in Two Warm Temperate Reservoirs : Association of Taxonomic Composition with Temperature / Journal of Plankton Research 28:1~17
Ha, K. / 2002 / Spatial and Temporal Dynamics of Phytoplankton Communities Along a Regulated River System, the Nakdong River, Korea / Hydro-biologia 470:235~245
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