The research was on the determination of the effect of light and salt concentrations onAphanocapsa algal population. Microbiological standards were observed in the isolation ofAphanocapsa sp from water sample collected from Shell Petroleum flow station. The effect of 5,000, 3500 and 2,000 lux light intensities and 10 g/L through 50 g/L salt concentrations on the growth and proliferation of Aphanocapsa sp was determined by a spectrophotometer at 340 nm. At Day 9, the algal species gave the highest optical density of 0.495 nm at 5000 lux. The optimum salinity on the algal growth was 10 g/L and this gave 1.23 nm optical density at Day 9. The control gave 0.45 nm on Day 9. This research monitored the effect various light and salt concentrations had on Aphanocapsa sp growth and the optimum light intensity and salt concentration were identified.
Key words: Algae, environmental parameters, light intensity, salt concentration, growth, population.
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