CD Skripsi
Prevalensi Penyakit Karang Keras (Scleractinia) Di Perairan Pulau Pagang, Provinsi Sumatera Barat
Coral reefs are ecosystems that provide habitat for many marine organisms, but threatened by degradation due to coral diseases. This study aims to identify the coral reef cover as well as the types and prevalence of hard coral (Scleractinia) diseases in the waters of Pagang Island. The research was conducted from February to May 2025 using the Underwater Photo Transect method to assess coral cover and the Belt Transect method to observe disease prevalence. Results showed that the coral reef condition ranged from poor to moderate, with coverage percentages between 11.67% and 46.73%. Five types of coral diseases were identified: Black Band Disease (BBD), White Band Disease (WBD), White Syndrome (WS), Ulcerative White Spot (UWS), and Pink Line Syndrome (PLS). BBD and WS were consistently found at all stations. Out of 389 observed coral colonies, 76 were infected, with an average disease prevalence of 20.78%. The highest prevalence occurred at the station with tourism activities. The low coral cover and disease presence were linked to anthropogenic activities causing environmental stress. This study provides an overview of the coral reef ecosystem condition in Pagang Island and highlights the importance of managing human activities to protect coral reef sustainability.
Keywords: Coral reef cover, hard coral (Scleractinia), Pagang Island, prevalence
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