Author/Editor		Valentinčič, T; Kralj, J; Stenovec, M; Koce, A; Caprio, J
Title		The behavioral detection of binary mixtures of amino acids and their individual components by catfish
Type		članek
Source		J Exp Biol
Vol. and No.		Letnik 203
Publication year		2000
Volume		str. 3307-17
Language		eng
Abstract		The question of whether a binary mixture of amino acids is detected by fish as a unique odor or whether the qualities of the individual components are retained within the mixture was investigated in channel (Ictalurus punctatus) and brown bullhead (Ameiurus nebulosus) catfish, species that are highly similar in their olfactory receptor and behavioral responses to amino acid odorants. Catfish respond with greater appetitivefood-searching (swimming) behavior to amino-acid-conditioned olfactory stimuli than to non-conditioned amino acids. In the present study, appetifive food-searching behavior was measured by counting the number of turns of the fish greater than 90 degrees within 90s of stimulus onset and, in some tests, by video tracking. The two methods yielded highly correlated results. Channel catfish conditioned to a binary mixture composed of equimolar amino acids responded with searching behavior to the amino acid that produced the larger-amplitude electro-olfactogram (EOG) response as they did to the cunditioned stimulus. (Abstract truncated at 2000 characters)
Descriptors		AMINO ACIDS ICTALURIDAE SMELL FEEDING BEHAVIOR DISCRIMINATION LEARNING BEHAVIOR, ANIMAL VALINE ALANINE LEUCINE