Process for Formation of Artificial Seaweed Bed

摘要

A process for the formation of an artificial seaweed bed comprises depositing a structure as an artificial fish reef in the sea. According to the present invention, the structure is made of a glassy material having a specific composition, or a surface of the structure is covered with the specific glassy material. The glassy material contains silicon in an amount of 30 to 70 wt. % in terms of SiO2. The glassy material further contains sodium and/or potassium in an amount of 10 to 50 wt. % in terms of Na2O and/or K2O. The glassy material furthermore contains iron in an amount of 5 to 50 wt. % in terms of Fe2O3. All or a part of the iron is present in a ferrous state. The glassy material contains the ferrous iron in an amount of not less than 1 wt. %.