Present address: Computational and Molecular Populations Genetics (CMPG), Zoological Institute, University of Bern, Baltzerstr. 6, 3012 Bern, Switzerland.
Sperm velocity in an Alpine whitefish: effects of age, size, condition, fluctuating asymmetry and gonad abnormalities
Article first published online: 21 AUG 2007
2007 The Fisheries Society of the British Isles
Journal of Fish Biology
Volume 71, Issue 3, pages 672–683, September 2007
How to Cite
Urbach, D., Bittner, D., Lenz, T. L., Bernet, D., Wahli, T. and Wedekind, C. (2007), Sperm velocity in an Alpine whitefish: effects of age, size, condition, fluctuating asymmetry and gonad abnormalities. Journal of Fish Biology, 71: 672–683. doi: 10.1111/j.1095-8649.2007.01537.x
- Issue published online: 21 AUG 2007
- Article first published online: 21 AUG 2007
- (Received 19 June 2006, Accepted 23 March 2007)
- gonad alteration;
- sperm velocity;
The relationship between sperm velocity and individual age, size, body condition and fluctuating asymmetry was investigated in Alpine whitefish Coregonus fatioi. The fish analysed belonged to one among several sympatric whitefish populations of Lake Thun, Switzerland, which are characterized by a high prevalence of gonad alterations. Therefore, sperm velocity data were also tested for a link between gonad deformation and sperm swimming speed. Sperm velocity was significantly lower in larger-grown individuals and in individuals of higher body condition. As expected, sperm velocity was higher in males with higher levels of fluctuating asymmetry, but it did not significantly vary with male age. Moreover, variation in sperm velocity was found to be significantly higher in individuals showing some types of gonad alterations but it did not significantly correlate with the presence of other types of alterations.