PROBLEM TO BE SOLVED: To settle the problem that the seaweed decrease thereby baring rock terrains and the like of sea bottoms, that is, so-called rocky-shore denudation, comes to an issue in recent years, especially in the Japan Sea side coast region in North Japan, wherein, as a reason, insufficiency of plant nutrient sources such as fallen leaves, branches and leaves, and fallen trees, flowing-in from the mountain forests through rivers, caused by repair of a revetment, dikes and the like of the rivers, is involved. SOLUTION: The structure for marine resource activation, low in cost, very easy in fixing the seaweeds, effective as aquaculture of the seaweed itself, and contributing to activation of fish resources as fishing banks or spawning grounds of fishes, can be obtained by a simple method including using a structure for marine resource activation provided by containing, in a net or fiber product bag, a compound of a plant material mixture of forest products containing, as a main material, wood chips including as a raw material, wood containing at least thinnings, grain byproducts and the like, and a marine product material except materials originated in a shell or a cephalopod, and, thereby, can much contribute to industries. COPYRIGHT: (C)2012,JPO&INPIT
