<；P>；PROBLEM TO BE SOLVED: To provide a larval fish bed structure that suppresses movement of larval fish, hardly causes concentration of larval fish and effectively supplies oxygen to the whole fish bed and to control larval fish in high productivity. <；P>；SOLUTION: The structure of a larval fish bed useful for larval fish control in artificial growth of migratory fish has such a constitution that a plurality of first cylindrical laying materials 10 having water permeability and are extended in a longitudinal direction are uniformly laid on a bottom B, second cylindrical laying materials 11 having water permeability and extended in a longitudinal direction are piled along the first laying materials 10 on the first laying materials 10 and the second laying materials 11 are arranged at intervals. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
