Goodson, A.D. and R.H. Mayo In: R.A. Kastelien, J.A. Thomas, and P.E. Nachtigall, eds. Sensory Systems of Aquatic Mammals De Spil Publishers, Woerden, The Netherlands ISBN 90-72743-05-9 Passive acoustic deterrents increased avoidance actions of bottlenose dolphins (Tursiops truncatus) to barriers simulating surface-set gillnets in the Moray Firth, Scotland.