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The relationship between body size and evoked potentials from the statocysts of the prawn Palaemon serratus
Lovell, J.M. (2006). The relationship between body size and evoked potentials from the statocysts of the prawn Palaemon serratus. J. Exp. Biol. 209(13): 2480-2485. http://dx.doi.org/10.1242/jeb.02211
In: The Journal of Experimental Biology. Cambridge University Press: London. ISSN 0022-0949; e-ISSN 1477-9145
Peer reviewed article  
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Trefwoorden
    Biogeny > Ontogeny
    Crustaceans
    Evoked potentials
    Hearing
    Palaemon serratus (Pennant, 1777) [WoRMS]
    Marien/Kust
Author keywords
    Sensory system; Hair cell
Auteur  Top 
  • Lovell, J.M.
Abstract
    The organisation of the statocyst hair cells and auditory evoked potentials (AEPs) generated by the afferents in three body size classes of prawn (Palaemon serratus) have been studied using a combination of anatomical, electron microscopic and electrophysiological approaches. The statistical examination of the relationship between the sensory setae and body size showed an increase in both the length and number of statocyst hair cells as the animal grows. In view of this finding, the response of the statocyst organ to a 500 Hz tone burst was recorded from four specimens from each size class using two subcutaneous electrodes, positioned in the carapace close to the supraoesophageal ganglion and statocyst. Neither body size nor the number of afferents in the statocyst has any significant impact on the amplitude of AEPs in response to the 500 Hz tone burst. The findings of this study show that P. serratus is capable of hearing a 500 Hz tone regardless of body size, a finding that is of ecological importance when considering the effect of anthropogenic sound on crustaceans.
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