<；P>；PROBLEM TO BE SOLVED: To provide a means, whereby when a plurality of seashore installation members are connected to one another to make an artificial reef, a submerged mattress, a fish path, or a shore protection member, the connecting of the seashore installation members can be performed more firmly, at a higher working efficiency, and the members can be installed more stably, despite the influence of forces of, for example, streams or waves. <；P>；SOLUTION: The artificial reef 14 includes a seashore installed member 1 composed of a plurality of natural stones 3 with a through-hole 2 and a chain 4, that is inserted into the through-holes 2 of the natural stones 3 to unite them together； shackles 16 attached to both ends of the chain 4 of the member 1 and each composed of a substantially a U-shaped body 19 with insertion holes 15 and a connecting rod 21, that crosses the opening 20 of the body 19 to connect both ends； and anchor bolts 18, inserted into the insertion holes 25 of the shackles 16 and driven into the ground 17 on a seashore. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
