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Can J Physiol Pharmacol

Title:		Hormonally derived sex pheromones in fish: exogenous cues and signals from gonad to brain
Author(s):		Stacey N; Chojnacki A; Narayanan A; Cole T; Murphy C;
Address:		"Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada. norm.stacey@ualberta.ca"
Journal Title:		Can J Physiol Pharmacol
Year:		2003
Volume:		81
Issue:		4
Page Number:		329 - 341
DOI:		10.1139/y03-024
ISSN/ISBN:		0008-4212 (Print) 0008-4212 (Linking)
Abstract:		"Living in a medium that can limit visual information but readily exposes the olfactory organ to hormonal compounds released by conspecifics, fish throughout their long evolutionary history have had both clear cause and ample opportunity to evolve olfactory responsiveness to these potentially important chemical cues (hormonal pheromones). Indeed, water-borne steroids, prostaglandins, and their metabolites are detected with great sensitivity and specificity by the olfactory organs of diverse fishes, and exert important effects on reproductive behavior and physiology in major taxa including carps (goldfish), catfishes, salmon, and gobies. Best understood are goldfish, where periovulatory females sequentially release a preovulatory steroid pheromone and a postovulatory prostaglandin pheromone that dramatically affect male behavior, physiology, and reproductive fitness. Although the diverse array of hormonal products released and detected by fish indicates clear potential for species-specific hormonal pheromones, olfactory recordings showing similar patterns of hormone detection among closely related species provide little evidence of selection for specificity. By demonstrating that the actions of sex hormones and related products are not limited to reproductive synchrony within the individual, the relatively recent discovery of hormonal pheromones has considerably expanded our understanding of fish reproductive function, while providing valuable model systems for future study of olfactory function and pheromone evolution"
Keywords:		"*Animal Communication Animals Brain/drug effects/*physiology *Cues Feedback, Physiological/drug effects/physiology Female Goldfish/*physiology Gonads/drug effects/*physiology Hormones/metabolism/*pharmacokinetics Male Sex Attractants/metabolism/*pharmacok;"
Notes:		"MedlineStacey, Norm Chojnacki, Andrew Narayanan, Annapurni Cole, Todd Murphy, Cheryl eng Research Support, Non-U.S. Gov't Review Canada 2003/05/29 Can J Physiol Pharmacol. 2003 Apr; 81(4):329-41. doi: 10.1139/y03-024"