A method for extracting aquatic animals from an apparatus (102) containing aquatic animals. The apparatus has a body with an open end (102a), a substantially closed end (102b), and one or more side walls (102c) between the open end and the substantially closed end. At least a major portion of the side wall(s) are in the form of a flexible membrane, and at least a major portion of the side wall(s) and the substantially closed end are substantially impervious to water. The method involves arranging the apparatus (102) with an open end (102a) of the apparatus positioned higher than a substantially closed end (102b) of the apparatus, introducing a flow of liquid into an interior region of the apparatus proximal the substantially closed end, and using the introduced flow of liquid to transport aquatic animals contained in the apparatus, out of the open end (102a) of the apparatus.
