Community Structure Of Seagrass In Ketawai Island, Bangka Belitung Islands Province, Indonesia

The seagrass ecosystem of Ketawai Island has the potential as a shelter, feeding, spawning ground from various aquatic organisms and it has an important role for the coastal and marine environment. The utilization of coastal and Ketawai island as a tourist area becomes a threat to the growth of seagrass community. This study aimed to analyze the community structure of seagrass, the coverage percentage, the density and the seagrass frequency located in Ketawai Island. The results showed that there were 8 (eight) species found in sampling site. It consists of Cymodocea serrulata, Enhalus acoroides, Syringodium isoetifolium, Cymodocea rotundata, Halodule uninervis, Thalassia hemprichii, Halophila ovalis, Halodule pinifolia. Cymodocea serrulata found in the highest density, highest attendance, highest frequency and highest percent of overage in all sampling site. Further study should be done to analyze the influence of physicochemical water parameters related to seagrass community Keywords— Ketawai Island, Seagrass, Community Structure, Tin Minning, Diversity