The photosynthetic responses of Microcystis aeruginosa, Scenedesmus obliquus, and Cyclotella meneghiniana to temperature and light regimes were investigated. M. aeruginosa had a higher specific growth rate at 30°C than at 14 and 20°C. Its specific growth rate was the maximum among the three species at 30°C. This suggests that M. aeruginosa could predominate in a water body having high temperature. When exposed to high light, M. aeruginosa showed lower maximal photosystem II (PSII) quantum yield (ΦM), operational PSII quantum yield (
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