Most
of the enriched solutions were developed for temperate algae asthey are exposed to high nutrient concentration in temperate sea.
However, G. changii is an indigenous seaweed species in Malaysia
and adapted to tropical oliogotrophic water which contains lower
nutrient concentration compared to temperate sea (Eppley, 1972;
Phang, 2006). Dilution of PES media demonstrated to be ideal for
achieving better growth rate for G. changii. The survival rate of G.
changii explants for this test is 100% and no obvious morphological
differences or abnormality observed on the explants.