PROBLEM TO BE SOLVED: To prevent preying on each other, to reduce stress and to prevent the damage or the like of each individual by securing a wide migrating space at the transportation of fries or the like of tuna, and to promote the growth under transportation.SOLUTION: A continuous, endless and sealed running water passage 20 is formed so as to wind almost each surrounding of a plurality of core pillar bodies 10 stood as supporting members while alternately changing the right and left turning directions, and a water current passing in one direction in the water passage 20 is formed. The live fish F is transported while being grown in the water current. The water passage 20 is constituted by setting difference in levels at least at a height interval of the surrounding part 22 in the upper and lower direction between the arc-shaped surrounding part 22 following the outer periphery of each of the parallelly arranged core pillar bodies 10, and the terminal part position of the surrounding part 22, and obliquely connecting the terminal part of one surrounding part 22 with the terminal part of the other surrounding part 22 in the upper and lower direction to integrally continue the surrounding connecting parts 23 in a mutually crossed state in the plane view between the mutual core pillar bodies 10.COPYRIGHT: (C)2011,JPO&INPIT【課題】マグロの稚魚等の輸送に際し、広大な回遊空間を確保して共食い防止、ストレス解消、個体それぞれの損傷防止等を図り、輸送中でも生育を促進できるようにする。【解決手段】支持部材として立脚した複数のコア柱体10それぞれの周囲を半ば巻回するように、また交互に左右の旋回方向を変更しながら連続したエンドレス状の密閉された流水路20を形成し、この流水路20中で一方向にのみ流れる水流を生成し、この水流中で活魚Fを生育しながら輸送する。流水路20は、並列配置したコア柱体10それぞれの外周に沿っている円弧状の周回部22と、この周回部22の端部部位では上下に少なくとも周回部22の高さ間隔で段差を設定して、一方の周回部22の端部は他方の周回部22の端部に上下方向で傾斜接続していて、コア柱体10相互の間で平面から見て互いに交差させた状態にある周回接続部23とを一体状に連続することで構成する。【選択図】図1
