PROBLEM TO BE SOLVED: The problem of eating damage caused by sharks and the like is very frequent when fishing for fish such as tuna. Even in fishing as a leisure, food damage caused by sharks and the like was a cause of diminishing interest and reducing its value. Moreover, human damage caused by sharks during marine leisure such as surfing is also great, and countermeasures have been required. SOLUTION: In a device for repelling organisms that cause human damage or eating damage such as sharks that live in water, a tubular member made of a viscoelastic material and a part of the tubular member are provided. A built-in power supply device, an electrode provided on part or all of the outer surface of the tubular member, a string-shaped member including a counter electrode extending from the tubular member, and a voltage applied between the electrodes A switch for turning on and off the power supply from the power supply device and a joint member for connecting the tubular member in a ring shape, which is placed in water and a voltage is applied between the electrodes, so that a shark living in water, etc. It is a device that repels organisms that cause human damage or food damage, and is the method of using the device. [Selection diagram] Figure 1【課題】マグロ等の魚類の釣りの際、鮫等による食害は非常に頻度が高く、問題となっていた。レジャーとしての釣りに於いても、鮫等による食害は興趣を削ぎ、その価値を低下させる原因となっていた。また、サーフィン等の海洋レジャー時の鮫等による人的被害も甚大であり、対策が求められていた。【解決手段】水中に生息する鮫等の人的被害或いは食害を齎す生物を忌避する装置に於いて、粘弾性を有する材料よりなるチューブ状部材と、該チューブ状部材の一部に設けられ或いは内蔵された電源装置と、該チューブ状部材の外面の一部或いは全部に設けられた電極と、該チューブ状部材から延伸する対向電極を備えた紐状の部材と、該電極間に電圧を印加するための電源装置からの通電をオンオフするスイッチと、該チューブ状部材を輪状に連接するジョイント部材を備え、水中に投入して該電極間に電圧を印加することにより、水中に生息する鮫等の人的被害或いは食害を齎す生物を忌避する装置であり、その使用方法である。【選択図】図１
