A method of removing aquatic animals from device 102 including aquatic animals. The apparatus comprises a body having an open end 102a, a substantially closed end 102b, and one or more side walls 102c between an open end and a substantially closed end. At least most of the one or more sidewalls are in the form of a flexible membrane, and substantially at least a substantial portion of one or more side walls is substantially waterproof.The method of disposing the device such that the open end 102a of the device is positioned higher than the substantially closed end 102b of the device and the process of directing the flow of liquid to the inner region of the device near the substantially closed end and the water contained in the device The method of using a guided liquid stream to transport raw animals from the open end portion 102a of the device.水生動物を含む装置102から水生動物を抜き取る方法。本装置は、開いた端部102aを有する本体と、実質的に閉じた端部102bと、開いた端部と実質的に閉じた端部の間の一つ以上の側壁102cを備える。一つ以上の側壁の少なくとも大部分はフレキシブルな膜の形式であり、その一つ以上の側壁の少なくとも大部分と実質的に閉じた端部は実質的に水を通さない。この方法は、装置の開いた端部102aが装置の実質的に閉じた端部102bより高く位置するように当該装置を配置する工程と、実質的に閉じた端部に近い装置の内側領域に液体の流れを導く工程と、装置に含まれる水生動物を装置の開いた端部102aから輸送するために、導かれた液体の流れを用いる工程と、を含む。