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A chemoreceptive function for the anterior dorsal fin in rocklings (Gaidropsarus and Ciliata: Teleostei: Gadidae): electrophysiological evidence

Published online by Cambridge University Press:  11 May 2009

R. C. Peters ,
G. W. Van Steenderen  and
K. Kotrschal
R. C. Peters
Affiliation:
Laboratory of Comparative Physiology, Jan van Galenstraat 40, 3572 LA Utrecht, The, Netherlands
G. W. Van Steenderen
Affiliation:
Laboratory of Comparative Physiology, Jan van Galenstraat 40, 3572 LA Utrecht, The, Netherlands
K. Kotrschal
Affiliation:
Universität Salzburg, Zoologisches Institut, Akademiestrasse 26, A-5020 Salzburg, Austria
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Extract

Gross activity recordings from the recurrent facial nerve were made in unrestrained specimens of Gaidropsarus and Ciliata by means of implanted silver-wire electrodes. Responses to tactile stimuli could be evoked almost anywhere on the skin. Application of the contents of the urinary bladders of other rocklings, water in which other rocklings were kept, and (diluted) human saliva to the anterior dorsal fin evoked strong responses. Responses to more elementary chemical stimuli like amino acids, salts, aldehydes, and acids, were much weaker or absent. The results favour a special chemoreceptive function of the vibratile anterior dorsal fin.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 67 , Issue 4 , November 1987 , pp. 819 - 823
Copyright
Copyright © Marine Biological Association of the United Kingdom 1987

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References

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