Investigating Impact of Sea Sand Mining in Tunda Island Waters, Indonesia Based in Mike 21 Modelling

Abstract In Indonesia, sea sand mining was introduced in the late 1970s, and one of sites is Banten Province, Indonesia. Sea waters began 2003 after issuance a permit by Regent Serang Regency, namely Decree No. 540/Kep.68/Huk/2003, which updated Regional Regulation Regency 2 2013 on Zoning Plan for Coastal Small Island Areas 2013-2033. Studies related to marine Banten, Indonesia are required accordance with principle ecosystem sustainability. The objective this study analyze impact ecological quality coral reefs hydro-oceanographic hue Tunda Island. survey method used determine reef cover, while hydrodynamic aspects were carried out simulating bathymetric data, tidal wave patterns. addition, simulation sediment distribution performed effects using MIKE 12 transport module. percentage cover west, east south 66.00%, 39.67% 28.15%, respectively. maximum depth around site reached 70 m, it relatively shallow area. last 14 years, prevailing height ranged from 0.5-0.75 m or 49.02%, 0.25-0.50 36.69%. concentration TSS high, ranging 40 mg/l 60 mg/l. From results, most commonly observed off high TSS. This can be prevented rotating TSHD vessels, especially areas adjacent