The abundance and distribution of Thalassia hemprichii (Ehrenb.) Aschers and Cymodocea rotundata Asch. & Schweinf. based on their different degrees of wave exposure and shore levels were investigated. T. hemprichii was the most dominant seagrass and occupied large areas from sheltered to exposed shores with the greatest percentage of cover (46±4.63%) whereas C. rotundata was restricted to the sheltered shore with a 12.22±4.95% cover. There were significant differences in abundance of these two species among the different degrees of wave action, shore sites, and month. Wave action might be the main influence on the percentage cover and distribution of these two seagrasses. In this study, the area covers of T. hemprichii and C. rotundata were around 0.104 km2 and 0.096 km2 , respectively.
