Observations on the electric organ discharge of two skate species. (Chondrichthyes: Rajidae) and its relationship to behaviour

The electric organ discharge (EOD) of the little skate, Raja erinacea and winter skate, R. ocellata was recorded both from isolated individuals and from small groups using methods that allowed for the identification of individuals producing EODs. Pulse duration, train length, frequency, and pulse pa...

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Veröffentlicht in:	Environmental biology of fishes 1987-12, Vol.20 (4), p.241-254
Hauptverfasser:	BRATTON, B. O, AYERS, J. L
Format:	Artikel
Sprache:	eng
Schlagworte:	Agnatha and pisces Animal ethology Biological and medical sciences Fundamental and applied biological sciences. Psychology Marine Psychology. Psychoanalysis. Psychiatry Raja erinacea Raja ocellata Vertebrata
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Beschreibung
Zusammenfassung:	The electric organ discharge (EOD) of the little skate, Raja erinacea and winter skate, R. ocellata was recorded both from isolated individuals and from small groups using methods that allowed for the identification of individuals producing EODs. Pulse duration, train length, frequency, and pulse patterns are characterized and correlated with behaviour. The two species, R. erinacea and R. ocellata , were found to have characteristically different EOD pulse durations of 70ms and 217ms respectively.
ISSN:	0378-1909 1573-5133
DOI:	10.1007/BF00005295