In this fishing method, it is possible not only to catch a fish without damaging it unlike when they fish with nets or fishing rods but also to keep it tasty and make its bones soft because the fish falls unconscious instantly and gets tired (especially in pole-and-line fishing) when it is put under intense pressure in the cormorant's throat.
この漁法は網や釣竿で網や釣竿などで獲るのとは違い、魚の体を傷つけずに漁が出来るだけでなく、鵜ののどの中で魚に強い圧力をかけて魚を一瞬で失神させるために、魚が疲れることによって（特に一本釣り）魚の旨みが落ちない事に加え、魚の骨が柔らかくなる。