PROBLEM TO BE SOLVED: To provide artificial fish banks capable of easily rooting aquatic plants such as seaweed and diatoms, not contaminating environment of the bottom of the sea, and capable of effectively utilizing an industrial by-product such as incinerated ash, and to provide a method for producing the same.SOLUTION: Each block body 2a is constituted such that incinerated ash or the like is added to cement as an aggregate 8 together with gravel and water, kneaded and thereafter hardened and molded in a prismatic shape； wood chips 7 in which spores of seaweed and diatoms are adhered are embedded on two opposing side surfaces of the block body in a state where a part thereof is exposed； and fixing paper pieces 6 are pasted on the side surfaces so as to cover the wood chips 7, and the wood chips 7 are embedded on the upper surface 18a with parts thereof exposed. The artificial fish banks is configured such that the block bodies 2a is firmly bounded by rod-shaped bodies 3 and nuts 4 and 4 in a state of being assembled in a double cross form.【課題】海藻や珪藻などの水生植物が着生し易く、かつ海底の環境を汚染することなく，焼却灰等の産業副産物を有効に活用することが可能な人工漁礁及びその製造方法を提供する。【解決手段】焼却灰等が骨材８として砂利や水とともにセメントに加えられ、混錬された後、角柱状に固められて成型されるとともに、対向する２つの側面に、海藻類や珪藻類の胞子を付着させた木片７が一部を露出した状態で埋設され、木片７を覆うように固定紙片６が上記側面に貼設されるとともに、上面１８ａに木片７が一部を露出させた状態で埋設されたブロック体２ａが井桁状に組み上げられた状態で、棒状体３及びナット４，４によって強固に結束された構造となっている。【選択図】図１
