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J Exp Zool

Title:		"Ejaculate of sneaker males is pheromonally inconspicuous in the black goby, Gobius niger (Teleostei, Gobiidae)"
Author(s):		Locatello L; Mazzoldi C; Rasotto MB;
Address:		"Dipartimento di Biologia, Universita di Padova, 35131 Padova, Italy"
Journal Title:		J Exp Zool
Year:		2002
Volume:		293
Issue:		6
Page Number:		601 - 605
DOI:		10.1002/jez.10168
ISSN/ISBN:		0022-104X (Print) 0022-104X (Linking)
Abstract:		"The black goby, Gobius niger, shows alternative male mating tactics, i.e., parental and sneaker males. Males release a sexual pheromone that attracts females and stimulates aggressive displays in males. This pheromone is produced by the mesorchial gland, a structure well developed in parental males but markedly undeveloped in sneakers. We measured the behavioral response of parental males to the ejaculates of males performing different reproductive tactics. Parental males reacted to the ejaculate of other parental males, with stereotypic aggressive behaviors, but not to the ejaculate of sneakers; consequently sneaker male ejaculate appears to be pheromonally inconspicuous"
Keywords:		"Aggression/physiology Animals Ejaculation/*physiology Fishes/*physiology Male Pheromones/*physiology Sexual Behavior, Animal/physiology;"
Notes:		"MedlineLocatello, L Mazzoldi, C Rasotto, M B eng Research Support, Non-U.S. Gov't 2002/11/01 J Exp Zool. 2002 Nov 1; 293(6):601-5. doi: 10.1002/jez.10168"