Per the manufacturer, you would release the turtles from the Multiple Catch Turtle Trap for Large Turles - Model 410 by turning the trap upside down and the trap door that they came in through would just automatically open and you can pull them out through there.
The manfuacturer does not list other aquatic animals other than turtles for the main purpose of the Multiple Catch Rigid Turtle Trap for Large Turtles. We would recommend contacting Tomahawk directly for specifics on the mechanisisms of their trap at 1-800-272-8727.
The ?Multiple Catch Rigid Turtle Trap for Large Turtles - Model 410 holding capacity depends on the sizes of the turtles. The dimensions are 42" L x 24" W x 12" H.