Acoustic Survey in Area of Set Net Fishing Ground

Abstract

The acoustic equipment was applied for fishery resource survey in coastal area. The hardware and software system for data collection were developed at Tokyo University of Marine Science and Technology, Tokyo, Japan. The acoustic equipment was conducted by using FURUNO GPS Plotter model GP-167F. It is equipped with GPS receiver and chart plotter system. It is also equipped with echo sounder with operated on 50 kHz and 200 kHz simultaneously. The returned echo signal of 50 kHz imported to acoustic data collection system was amplify, filled, display and recorded on PC. The echograms of standard target ball could be clearly detected and record on PC data collector. The testing of acoustic equipment and system for shallow area were conducted at in area of set net fishing ground, Rayong bay, Thailand.