METHOD FOR IMPROVING SURVIVAL RATE OF TUNA FRY IN AQUACULTURE

To provide a method for breeding tuna fry in which LED lighting is arranged in the wall surface of a fish preserve or an aquarium, and thereby the jumping-out or the collision death of the fry is avoided, in aquaculture of the tuna fry.SOLUTION: A method is provided for preventing wall surface collision in breeding of tuna fry. The method is configured as follows: horizontal one line or multiple white LED lighting is arranged in the whole wall surface in conformity to the depth of an aquarium, in a fish preserve or the aquarium; the LED emitting beam is installed so as to be applied toward the inside of the fish reserve or the aquarium being substantially vertical to the wall surface; also similarly, the LED emitting beam is installed so as to be applied toward the bottom surface of the aquarium; and thereby the collision or the jumping-out of the tuna fry is prevented.SELECTED DRAWING: Figure 1 【課題】マグロ幼魚の養殖において、生簀または水槽の壁面にＬＥＤ照明を配置し、幼魚の飛び出し、および、衝突死を回避するためのマグロ幼魚の飼育方法を提供する。【解決手段】マグロ幼魚の飼育において、壁面衝突を防止するための方法であって、生簀または水槽内に、横一列乃至複数個の白色ＬＥＤ照明を水槽等の深さにあわせて壁面全体に配置し、ＬＥＤの発光ビームを壁面に対してほぼ垂直方向の生簀や水槽内部に向け照射できるように設置し、また、同様に、ＬＥＤの発光ビームを水槽底面に向けて照射できるように設置することにより、マグロ幼魚の衝突や飛び出しを防止する。【選択図】図１