The research about detection ofplankton using hidroacoustic method has been done in Bangka Strait Bangka Belitung Province using Scientific Fishfinder Split Beam Echosounder Type Simrad EY 60 and to collecting plankton sample using planktonnet. Plankton data analysis has been done at Marine Science Laboratory Sriwijaya University Indralaya and acoustic data analysis has been done at Research Ce…