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Fig. 6. Particle acceleration audiograms of all tested species of elasmobranchs.
Values for the nurse shark Ginglymostoma cirratum and yellow stingray
Urobatis jamaicensis (Casper and
Mann, 2006), lemon shark Negaprion brevirostris
(Banner, 1967) and horn shark
Heterodontus francisci monopole
(Kelly and Nelson, 1975) were
modified to compare to the particle acceleration data obtained in the dipole
experiment. These four species were all tested with a monopole sound stimulus.
The nurse shark and yellow stingray audiograms were obtained with auditory
evoked potentials in terms of particle acceleration. The lemon shark and horn
shark were obtained using classical conditioning methods with measurements in
terms of particle displacement, which was converted to particle accelerations
in this figure.
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