skip to main content

Effect of phosphorus fluctuation caused by river water dilution in eutrophic lake on competition between blue-green alga Microcystis aeruginosa and diatom Cyclotella sp

Amano, Yoshimasa ; Sakai, Yusuke ; Sekiya, Takumi ; Takeya, Kimitaka ; Taki, Kazuo ; Machida, Motoi

Journal of Environmental Sciences, 2010, Vol.22(11), pp.1666-1673 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por
  • Título:
    Effect of phosphorus fluctuation caused by river water dilution in eutrophic lake on competition between blue-green alga Microcystis aeruginosa and diatom Cyclotella sp
  • Autor: Amano, Yoshimasa ; Sakai, Yusuke ; Sekiya, Takumi ; Takeya, Kimitaka ; Taki, Kazuo ; Machida, Motoi
  • Assuntos: Eutrophic Lake ; Water Quality Improvement ; Water Blooms ; Microcystis Aeruginosa ; Cyclotella Sp ; Eutrophic Lake ; Water Quality Improvement ; Water Blooms ; Microcystis Aeruginosa ; Cyclotella Sp ; Engineering ; Environmental Sciences
  • É parte de: Journal of Environmental Sciences, 2010, Vol.22(11), pp.1666-1673
  • Descrição: Tega-numa (Lake Tega) is one of the eutrophic lakes in Japan. For the improvement of water quality in Lake Tega, the North-chiba Water Conveyance Channel was constructed in 2000, which transfer water from Tone River into the lake. After 2000, the dominant species of diatoms, mainly Cyclotella sp., have been replacing blue-green algae, mainly Microcystis aeruginosa in Lake Tega. This transition of dominant species would be due to the dilution, but the detail mechanism has not been understood yet. This study examined the relationship between phosphorus fluctuation caused by river water dilution to Lake Tega and dominance of algal species, M. aeruginosa or Cyclotella sp. based on the single-species and the mixed-species culture experiments. The single-species culture experiment showed that the half-saturation constant and uptake rate of phosphorus were one order lower and seven times higher for M. aeruginosa than those for Cyclotella sp. These findings implied...
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.