<；P>；PROBLEM TO BE SOLVED: To provide an underwater installed structure and an underwater installed structure group using the underwater installed structure high in generation efficiency of an upwelling current and accurately installed in a predetermined installed state without being restricted by the water depth of an installed place. <；P>；SOLUTION: The underwater installed structure 1 is formed in longitudinal shape extending in a longitudinal direction, formed in asymmetric shape with respect to an imaginary plane 10a passing a center part in the longitudinal direction and perpendicular to the longitudinal direction, and formed in shape to receive such an external force that the position of an action point determined when the external force from a fluid relatively moving in any direction out of perpendicular directions to the longitudinal direction is approximated as an imaginary external force to one action point, is a position shifted to one side in the longitudinal direction from the position of the center of gravity 1c. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
