Sharks (elasmobranchs) are an ancient, diverse group of fishes, representing a basal stage
in the evolution of vertebrate hearing. Yet, our understanding of behavioural measures of …

Auditory sensitivity measurements have been published for only 12 of the more than 1150
extant species of elasmobranchs (sharks, skates and rays). Thus, there is a need to further …

The marine environment is filled with biotic and abiotic sounds. Some of these sounds
predict important events that influence fitness while others are unimportant. Individuals can …

We determined the hearing sensitivity of the little skate, Raja erinacea using two methods:
Behavioral conditioning and the auditory brainstem response (ABR). This marks the first time …

Cognitive abilities of sharks are well developed and comparable to teleosts and other
vertebrates. Most studies exploring elasmobranch cognitive abilities have used visual …

The effect of sound on the behaviour of sharks has not been investigated since the 1970s.
Sound is, however, an important sensory stimulus underwater, as it can spread in all …

The acoustic world of sharks and the use of their hearing sense are very poorly known. The
aims of this thesis were to examine the methodology of determining hearing thresholds …

The hearing abilities of elasmobranch fishes were examined in response to several types of
stimuli using auditory evoked potentials (AEP). Audiograms were acquired for the nurse …

Horn sharks were conditioned to pure‐tone audio signals in two different laboratory test
situations. In the first experiment, conducted in a small, air‐speaker‐driven enclosure, four …

Behavioral tests of hearing in fish are relatively rare and are generally based upon aversive
conditioning, with little data available for the positive reinforcement methods common in …