LARVAL FISH REARING MATERIAL AND FLOATING TANK

摘要

PROBLEM TO BE SOLVED: To restrain worsening of a larval fish rearing environment due to overcrowding of larval fish in a lower layer of a water tank.SOLUTION: The larval fish rearing material 1 is a cylindrical body 10 with the inside used as a larval fish rearing space. An upper half part 10A of the cylindrical body 10 includes window parts 11 having openings 11A of set size, and a lower half part 10B of the cylindrical body 10 includes a net part 12 having mesh 12A of set size. The size of the opening 11A of the window part 11 is larger than that of the mesh 12A of the net part 12.