Assessment of coral reef condition using upt (underwater photo transect) method on gili labak island madura indonesia

Coral reefs are unique, complex and high-productivity marine ecosystems that make coral reefs a place to grow and breed most fish and biota in the waters, and physically the function of coral reefs is to withstand coastal abrasion, break waves and so on. To be able to manage coral reefs properly, valid data support is needed as a basis for formulating a policy. Gili Labak Island is one of the islands that is currently a tourist attraction because it has a very wide expanse of coral reefs. The UPT method is a method that utilizes technological developments, because in this method digital camera technology and computer software are used. Data retrieval in the form of underwater photos is done by shooting using an underwater digital camera. The photographs were then analyzed using computer software to obtain quantitative data. This study aims to calculate the biota in the transect. The results obtained Coral 72.92%, Dead coral (DC) 2.03, Dead Coral Algae (DCA) 9.09%, Soft Coral (SC) 0.33%, Rubble (R) 6.15%, Sand (S) 8.98%, Rock (RK) 0.52%.