pH is one important factor in the life of marine algae, as well as other factors. According to US-EPA (1973) in Iksan (2005) maximum pH range for the life of marine organisms is 6.5 to 8.5. Chapman (1962) in supit (1989) states that almost the entire algal like a pH range of 6.8 to 9.6 so that the pH is ...
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