Arousal and fright responses and their habituation in the slippery dick,Halichoeres bivittatus |
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| Authors: | P. R. Laming S. O. E. Ebbesson |
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| Affiliation: | (1) Culebra Biological Station, 00645 Culebra, Puerto Rico, USA;(2) Present address: Department of Zoology, Queen's University of Belfast, BT7 1NN Belfast, Northern Ireland;(3) Present address: Department of Anatomy, Catholic University of Puerto Rico School of Medicine, 00731 Ponce, Puerto Rico, USA;(4) Department of Anatomy, Louisiana State University Medical Centre, 71130-3932 Shreverport, LA, USA |
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| Abstract: | Summary Behavioral arousal and fright responses ofHalichoeres bivittatus occurred in aquaria to a moving shadow and a  tap stimulus. Arousal was characterized by changes in the beat of pectoral fins, dorsal fin erection and eye movements, whereas in fright, adduction of pectoral and dorsal fins and rapid forward movement occurred. Serial stimulus presentation caused the fright response to be replaced by arousal which habituated in that the proportion of behavioral components exhibited decreased during the process.P.R. Laming was in receipt of a Royal Society travel grant for assistance in the expenses of this work, for which he is duly grateful. We are grateful to Nick Zinkowski, Culebra for the loan of minnow traps. |
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