藻場や磯焼け域の把握に関わる新たな装置や技術

廉価版サイドスキャンソナー,ラジコンヘリ,間欠撮影カメラの利用

抄録

It is important to monitor the seafloor habitat on a regular basis for early detection of "Isoyake", which means sea desertification, and identifying the reason. Because traditional monitoring techniques, diving survey, take much time and energy to obtain spacious and periodical information of the seafloor habitat, new monitoring methods are necessary for the continuous management of macrophyte benthos bed. Recently, high-performance monitoring devices are sold at low price and used to examine distribution of marine bottom material and vegetation and behavior of herbivorous fishes. This report introduces three monitoring devices, inexpensive side-scan sonar, radio-controlled multicopter and interval camera.