携帯型岸壁生物水中ビデオ撮影装置の考案

抄録

Submersible survey of biological communities are conducted using diving equipment and submersible instruments that are usually heavy and bulky. It also takes time to get permits to survey the inside of harbors and ports, and to prepare diving apparatus on site. Hence, it is desirable for intertidal ecologists to be able to conduct underwater surveys without the need for special diving skills and costly instruments. A portable videography apparatus has been devised for surveying biological communities on quay walls and to conduct observation at any time. It consists of a wearable underwater video camera, macrolens and collapsible kitchen shelf. Simultaneous species identification and quantitative analysis of organisms are possible with this apparatus which combines captured images from video and a measuring tape.