PROBLEM TO BE SOLVED: To provide a safe and effective disinfestation method of ectoparasites which live on body surfaces of fishes.SOLUTION: There is provided a method of disinfestation of ectoparasites living on marine fishes by using low density hydrogen peroxide water characterized in that immersion in hydrogen peroxide water of 30 ppm to 150 ppm for 15 minutes or more is executed. In the method of disinfestation of ectoparasites living on marine fishes by low density hydrogen peroxide water, a side surface of a fish live-box is covered with a sheet and sea water inside is held, and in the state, the hydrogen peroxide water is administered to the sea water in the fish live-box by an amount at which an average density of the hydrogen peroxide water in calculation is 30 ppm-150 ppm, and after passage of 15 minutes or more, the sheet is removed.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】より安全で効果が高い魚類の体表に寄生する外部寄生虫の駆除方法を提供する。【解決手段】30ppm～150ppmの過酸化水素水に15分間以上浸漬することを特徴とする低濃度過酸化水素水による海産魚類の外部寄生虫を駆除する方法である。生け簀の網の側面をシートで被い、内部の海水が保持される状態にして、生け簀内の海水に過酸化水素水を計算上平均濃度が30ppm～150ppmになる量投入し、15分間以上経過後、シートを除去することを特徴とする低濃度過酸化水素水による海産魚類の外部寄生虫を駆除する方法である。【選択図】図１
