PROBLEM TO BE SOLVED: To provide a fishing net that makes it possible to operate a ship while towing the net at high speed as the depth of water that the center portion of the ship-towed net passes through is adjusted using a simple structure.SOLUTION: A drum mesh portion 120 is provided between a wing net portion 110 and a fish-catching bag portion 140. The size of the mesh of the drum mesh portion 120 is finer than a white bait, etc., which is the subject of fishing. The drum mesh portion 120 is fitted with a buoy 130 for imparting buoyancy via a connection 131 in a part of a body portion. When the net is towed by the ship, buoyancy is imparted to a part of the drum mesh portion 120 to adjust the underwater attitude of the drum mesh portion 120 in the ship-towed net 100 to be higher. With an arrangement in which a net body is attached to the connection 132, the higher the speed at which the net is towed by the ship becomes, the greater the resistance produced in the net body at the connection 132 and the greater the buoyancy.COPYRIGHT: (C)2013,JPO&INPIT【課題】 簡単な構造により、船びき網の中心部分が通過する水深を調整し、速い速度で船びき操船を可能とする魚網を提供する。【解決手段】 袖網部分110と魚取り袋部分140との間に胴網部分120が設けられている。胴網部分120の網目の大きさは漁獲対象となるシラス等よりも細かい網目である。胴網部分120には、胴部の一部において連結部131を介して浮力を与えるために浮力体130を取り付けている。船びきの際に、胴網部分120の一部に浮力を与え、船びき網100中の胴網部分120の海中姿勢を上方に調整する。連結部132に網体を取り付けた構成とすれば、船びきの速度が速くなるほど連結部132の網体に生じる抵抗が大きく浮力が大きくなる。【選択図】 図1
