Oceanographic conditions and sedimentation in the Kawal river Bintan Island and impact on the prevalence of coral disease

Abstract In river mouths and coastal areas, sediment carried by water flows often clogs the estuaries causes silting lagoons, impacting prevalence of coral disease. Ten traps were installed in 25 cm from bottom to record data for 21 days Kawal River. Oceanographic current flow collected using CTD a Current meter Eulerian method with depth interval installation 0.25 0.75 surface. The Underwater Photo Transect (UPT) is analyze condition reefs temperature ranged 30.471 ± 0.001 °C 31,609. ±0.001°C, salinity value ranges 29.643 PSU 32.336 0.063 0.010 m/s 0.281 0.012 m/s. results trap, dry weight deposited 0.89 grams, largest 48.45 turbidity 0.77 NTU 4.22 NTU. disease was 56.40%. conclusion indicates that excessive sedimentation rates at can result high incidence