| 摘要 |
PURPOSE: An artificial fish reef is provided to solidify seaweed to be fixed at an initial stage and to be well rooted, and to help habitat, hideout, spawn of sedentary fish and shellfish or octopus, mollusks by making various types of holes in a grid structure. CONSTITUTION: In a floor grid part of a cube grid structure frame(10), both ends of a plurality of horizontal piercing linear flow paths(11) are opened inside and outside of the cube grid structure frame. In a horizontal frame consisting of the floor grid part, a vertical divergence linear flow path is formed. One end part of the vertical divergence linear flow path(12) is passable in the middle of a horizontal piercing linear flow path formed in the external side outside of a width direction among a plurality of horizontal piercing linear flow paths, and the other end part of the vertical divergence linear flow path is spread vertically and upwardly and is exposed to outside. In a vertical frame consisting of the floor grid part, a horizontal divergence linear flow path (13) is formed. Both ends of the horizontal divergence linear flow path are connected to a plurality of adjacent horizontal piercing linear flow paths among a plurality of horizontal piercing linear flow paths, and those adjacent horizontal piercing linear flow path are passed by the horizontal divergence linear flow path. In superelevation posts arranged externally among posts of the grid structure frame, a plurality of linear type parallel pores(14) opened to the superelevation posts facing each other in the vertical and horizontal directions are formed. In the top end portion of the superelevation posts, a L shaped horizontal passage(15), of which both ends are opened as a rectangular cross section toward the superelevation posts facing each other in the vertical and horizontal directions, is formed. |
