The title this Research is the wides analysis of coral reef using Landsat-7 ETM+ satellite data at Pongok waters South Bangka Regency. In South Bangka Regency the information a wides of coral reef at Pongok Island Waters is nothing. The purpose of This research to know about the wides of coral reef at Pongok Island waters and to map that ecosystem using satellite data Landsat-7 ETM+. This resea…