The combinated farming way of the fish, the shellfish and the seaweed used by fabric's sinking system

摘要

PURPOSE: A cultivation method using a structure sinkage technique is provided to compositely cultivate fishes, shellfishes, and seaweeds together by using only one concrete structure, to purify the seawater around the concrete structure, and to collect and merchandise fish-bait source. CONSTITUTION: In the cultivation method using the structure sinkage technique, the fishes and the shellfishes are cultivated in the interior of the concrete structure(1) sunken on the level of 15 to 20m under the sea, and the seaweeds are cultivated on an exterior structure. The concrete structure is provided with a seawater inlet/outlet opening(3) on a wall surface, and a door on the center of a top surface(5). A multi-steps shelf(31) having a vent hole(33) is formed in the concrete structure. An inlet/outlet passage(32) for the fishes and the shellfishes is provided in a joint portion of the middle point between the shelf and an inner wall surface(30).