인위적인 수중 소음원에 따른 금붕어의 행동반응특성

Abstract

The past several years have seen a significant increase in questions and interest related to the effects of anthropogenic sounds on marine animals. The majority of anthropogenic sounds are SONAR, air-gun, pile-driving, underwater blast, ship noise and ect.. Anthropogenic underwater noise can be divided by continuous and impulsive sound. The former is relatively low sound pressure and long duration time. While, the latter relatively is high sound pressure and short duration time. The latter is critical such as being fatal of the fishes, an air bladder explosion and an auditory cell damage. In order to analyze the anthropogenic sound effects on goldfish, sound field of pure tone in water tank is specially controlles using standing wave and impulsive sound is generated using electric energy discharge. It is found that the goldfish gathers in low pressure sound field for pure tone experiment. The goldfish behavior on impulsive sound shows that it's movement is slow as increase of impulsive sound repetition.