Study on the effect of salinity on growth of Skeletonema costatum algae at different salinity level 5 level is 30, 40, 50, 60 and 70 ppt using recipes Guillard medium in the laboratory where the temperature is around 25 degrees Celsius, the lighting and air throughout a 20-day period of the growth of the algae cell count. Calculate the specific growth rate (SGR) data analysis of variance Analysis method, and Duncan Multiple Range Test. The study found that seaweed can grow best at 30 ppt salinity levels and can grow as little as 70 ppt salinity level, however, found that the algae can grow after modifying the level of salt in a wide range. If you want to give farming algae is a constant term has for long periods of time or keep a stock of seaweed, algae should be raised to the level of salinity 60-70 ppt, but if you want to keep algae growth in a quick period. Should be fed at 30-50 ppt salinity levels after that, if you want to adjust to the constant term algae as long as well. Should be gradually reduced the salinity level in order to maintain the integrity of the environment algae seaweed that S. costatum and can withstand changes in salinity well in a wide range.
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