| 摘要 |
PURPOSE:To raise the quality of water as well as grow water organisms by a method in which the inside of a cubic block is provided with chambers and holes enabling organisms to live, entrances through which water flows, and many uneven surfaces to be touched by water. CONSTITUTION:Entrances 1 are provided symmetrically on the upstream and downstream sides of the lower base body, an a great central chamber 2 is provided at the center. Four anchor bolts 3 are also vertically projected on the surface 4 to be matched with an upper plate. Sloped entrances 6 are provided in the upper base body and small-width faces 7 are compensationally provided on one or both sides in particular. Bolt holes 8 are drilled in places to be inserted with anchor bolts. A fish breeder is made up of the small entrances and the central chamber, which can serve as an inhabitancy for fish and shellfish and also serve to clean up the flowing water of small river. |
