Abstract
A device for outdoor recording of images of hunting behavior of the Japanese water shrew, Chiarrogale platycephala, was developed and the effectiveness of the device was examined. A simple water tank that anyone could use was employed to produce the device. The glass tank was 150mm(W)×600mm(L)×350mm(H). A plastic net was placed at the outflow point to prevent bait fish from escaping. Good care was taken to minimize the effect on the river ecosystem. Another plastic net was employed to ensure that the water shrew could enter the device safely. The device may also be used as a teaching material and for exhibition at zoos.
