Problem: it is possible to collect scallops without damage by impact.The main body 11 of the nail 10 of the fish collecting apparatus isSteel;Base 12 attached to fish and shellfishIncludes an action section 13 for digging the understory and bottom soilThe direction from the base 12 toward the action part 13 is extended in the longitudinal direction.The action part 13 of the body 11 isOne edge 11C extending in the longitudinal direction of the bodyA cemented carbide piece 21 that is dug up is attached to the soilCemented carbide piecesIt has an earthing shape in the plane perpendicular to the longitudinal direction.Diagram