New Zealand Journal of Marine and Freshwater Research abstracts

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DOLPHIN NOISES RECORDED BY ECHO-SOUNDER

L. J. Paul

Fisheries Research Division, Marine Department, Wellington

Abstract The ultrasonic signals of dolphins show as "interference noise" on an echo-sounder record. Some records obtained from Delphinus delphis in Hauraki Gulf, New Zealand, suggest that these emissions were being used for echo-ranging, a phenomenon well established by previous work. Possible uses of such records in studying dolphin behaviour are explained.

N.Z. JI mar. Freshwat. Res. 3: 343-8.
Received for publication 12 July 1968

PDF file of entire paper: medium quality (1331K); (scanned from paper original: notes about this process)

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