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          Institute: MPI für Evolutionsbiologie     Collection: Evolutionary ecology     Display Documents



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ID: 331364.0, MPI für Evolutionsbiologie / Evolutionary ecology
Sperm velocity in an Alpine whitefish: effects of age, size, condition, fluctuating asymmetry and gonad abnormalities
Authors:Urbach, D.; Bittner, D.; Lenz, T. L.; Bernet, D.; Wahli, T.; Wedekind, C.
Language:English
Date of Publication (YYYY-MM-DD):2007-09
Title of Journal:Journal of Fish Biology
Volume:71
Issue / Number:3
Start Page:672
End Page:683
Review Status:not specified
Audience:Not Specified
Abstract / Description: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. (C) 2007 The Authors Journal compilation (C) 2007 The Fisheries Society of the British Isles.
Free Keywords:age; condition; gonad alteration; size; sperm velocity; whitefish
External Publication Status:published
Document Type:Article
Affiliations:MPI für Limnologie/Abt. Evolutionsökologie
External Affiliations:Univ Lausanne, Dept Ecol & Evolut Biophore, CH-1015 Lausanne, Switzerland; Univ Bern, Div Conservat Biol, CH-3012 Bern, Switzerland; Univ Bern, Ctr Fish & Wildlife Hlth, CH-3001 Bern, Switzerland
Identifiers:ISSN:0022-1112 [ID-No:1]
DOI:10.1111/j.1095-8649.2007.01537.x [ID-No:2]
LOCALID:2588/S 38747 [Listen-Nummer/S-Nummer]
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