Abstract:
This study investigated the density index of Vibrio species at coral reefs area in
Terengganu by using Coral Health Index metric. High density of Vibrio is closely related
to human activities and pollution, and these reflect the health of coral reefs. On the other
hand, Vibrio was reported not only responsible for human illness but also affect other
marine life including mammals, mollusks and the zooxanthellae of corals. Vibrios were
collected in water sample at reefs environment and cultured on Thiosulphate Citrate Bile
Salt Agar (TCBS Agar), a selective agar for Vibrio spp. From colonial forming unit
count, the highest density was in Pulau Bidong and the lowest was in Pulau Redang. All
nine study sites showed scores of l for the density index and this show that the coral reefs
are in very healthy state by mean of microbe's measurement.
