ANALYSIS OF KNOWLEDGE, PERCEPTIONS AND PUBLIC ATTITUDES TOWARD SUSTAINABILITY REEF ECOSYSTEM ATTHE BEACH BINASI SORKAM TAPANULI TENGAH

the aims of this research was to determine the level of knowledge, perceptions and attitudes towards the preservation of the coral reef ecosystem at the beach binasi, sorkam, tapanuli tengah. Binasi beach is one of the west coast of north sumatra has abundant coral reefs, but over time as well as increased use of coral reefs, the longer the coral reefs on the wane. Coral (coral reefs) is a community of organisms that live in the bottom waters and rock formations such as limestone (caco3) which is strong enough to withstand force of ocean waves.damage to coral reef ecosystems can not be separated from human activities both on land and in coastal and marine ecosystems. Human activities on land such as industry, agriculture, households can eventually have a negative impact not only on the waters of the river but also the coral reefs and coastal ecosystems and oceans. Data obtained by conducting a structured interview by asking questions about what knowledge, perceptions and attitudes about the preservation of coral reef ecosystems.the location of this research carried out at the beach binasi sorkam, tapanuli tengah. The analysis technique used is a qualitative and quantitative description. Knowledge of the community to coral reef ecosystems obtained an average score of 43.33.public perception of the coral reef ecosystem preservation obtained an average score of 32.27. Public attitudes towards the preservation of the coral reef ecosystem obtained an average score of 34.17. There was a relationship being and positive impact on knowledge to the public perception (0.259). There was a weak correlation with the knowledge and positive attitude of society (.101). There was a relationship being and positive perception by the public attitude (0.204).