The main goal for my master thesis is the detection of skin vibrations on a wild restrained delphinid. These vibrations are produced by the vocalization of the animal and it should be possible to detect them with an accelerometer connected to a D-TAG. While the accelerometer detects the vibrations on the skin, the hydrophone of the D-TAG will record the audio simultaneously. If such vibrations can be detected, they could be used to identify the vocalizing dolphin when they are in a group. Future studies could develop a tag capable of detecting these skin vibrations on wild or captive unrestrained animals, providing invaluable data to study group communication and behavior in delphinids.