Present address: Department of Biology, University of Maryland, Biology/Psychology Bldg, College Park, MD20742, U.S.A.
A direct assay of female choice in cichlids: all the eggs in one basket
Article first published online: 20 FEB 2006
Journal of Fish Biology
Volume 68, Issue 2, pages 373–384, February 2006
How to Cite
Kidd, M. R., Danley, P. D. and Kocher, T. D. (2006), A direct assay of female choice in cichlids: all the eggs in one basket. Journal of Fish Biology, 68: 373–384. doi: 10.1111/j.0022-1112.2006.00896.x
- Issue published online: 20 FEB 2006
- Article first published online: 20 FEB 2006
- (Received 16 February 2005, Accepted 27 June 2005)
- egg-catcher assay;
- mate choice;
- sexual selection;
- visual cues
A novel testing apparatus is presented which affords the researcher maximum control over the testing environment, but allows for the scoring of actual spawning events. Female Metriaclima zebra and Metriaclima benetos chose the appropriate conspecific mate in every mating trial performed. This apparatus provides support for a critical assumption of many cichlid speciation models: that female cichlids use visual cues to recognize conspecifics. These results demonstrate that females are able to identify conspecific mates using only visual cues, and provide further support for the importance of sexual selection in the speciation of these fishes.