Lemna paucicostata

Biological treatment using aquatic plants have been investigated as an alternative process for treatment of beverage factory effluent. In this study, Lemna paucicostata Hegelm was exposed to different concentrations (0%, 5%, 10%, 20% and 25%) of beverage factory effluent. The experiment was set up in triplicates for each concentration and observed for fourteen days. From the results obtained, fast growth and turnover of L. paucicostata was observed and the relative growth rate was found to be concentration dependent. L.

The study investigated the effect of ballast water on the growth of two aquatic macrophytes, Azolla pinnata R.Br. and Lemna paucicostata Hegelm. The ballast water used for this study was sourced from MTCRARROCH vessel which berthed in Koko Port. The macrophytes were grown at different concentrations (25%, 50%, 70% and 100%) of ballast water, using distilled water as control (0%). The experiment lasted for twelve (12) days. There was increased growth in both macrophytes with increasing concentration of ballast water.