Sediment promote disease in Scleractinia coral at sempu island nature reserve malang, East java, Indonesia
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2017, Vol 10, Issue 4
Abstract
Sempu Island was stated as nature reserve in south Java and the most heavily used due to more 100 tuna fishing boats passing in Sendang Biru port just located < 1 km from Sempu Island. Coral reef in Sempu Island can be found only in northern part (Sempu strait) and in small lagoon inside of island (Segara Anakan), about 10 ha total coral reef covered Sempu Island. Live coral cover percentage on Sempu Island was 22.83% that means coral reef being in the pressure. Pressure or threat might be coming from load sedimentation from terrestrial, run off river, sport water tourism and fishing activities. In light of these the aim this study was to quantify prevalence of diseases affecting coral on these reefs. We used SCUBA to survey on five sites with 1x50 belt transect perpendicular with shore line. Coral were identified on genus level and noted compromised health within each 50x50 cm in belt transect area. The result showed that average of coral disease prevalence was 10.67% with the highest prevalence in Teluk Semut 2 (TS 2) with 15.8%. Compromised health also affected on 8 coral families, they were Acroporidae (0.56%); Agariciidae (0.06%); Dendrophyllidae (0.566%); Faviidae (0.99%); Merulinidae (0.06%); Pocilloporidae (0.06%) and Poritidae (6.05%).
Authors and Affiliations
Oktiyas Muzaky Luthfi
Keywords
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