Growth Characteristics of Chattonella antiqua (Raphidophyceae):Part 1. Effects of Temperature, Salinity, Light Intensity and pH on Growth

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Chattonella antiqua (Raphidophyceae), which causes heavy red tides in the Seto Inland Sea, Japan, was placed in axenic clonal culture by micropipette washing. The effects of temperature, salinity, light intensity and pH on growth were monitored. Maximum growth occurred at 25°C, at salinities between 25 and 41‰, under light intensities above 0.04 ly min-1.The pH effect was not significant in the pH range from 7.6 to 8.3. Comparisons of our results with those from field observations suggest that the development of the C. antiqua red tide is strongly temperature dependent.
日本海洋学会の論文