Sexually dimorphic morphology and swimming performance relationships in wild-type zebrafish Danio rerio

Conradsen, C. and McGuigan, K. (2015) Sexually dimorphic morphology and swimming performance relationships in wild-type zebrafish Danio rerio. Journal of Fish Biology, 87 5: 1219-1233. doi:10.1111/jfb.12784


Author Conradsen, C.
McGuigan, K.
Title Sexually dimorphic morphology and swimming performance relationships in wild-type zebrafish Danio rerio
Formatted title
Sexually dimorphic morphology and swimming performance relationships in wild-type zebrafish Danio rerio
Journal name Journal of Fish Biology   Check publisher's open access policy
ISSN 1095-8649
0022-1112
Publication date 2015-11-01
Year available 2015
Sub-type Article (original research)
DOI 10.1111/jfb.12784
Open Access Status Not Open Access
Volume 87
Issue 5
Start page 1219
End page 1233
Total pages 15
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Subject 1105 Ecology, Evolution, Behavior and Systematics
1104 Aquatic Science
Abstract This study compared prolonged swimming performance (U-crit) between male and female Danio rerio, and characterized how body shape was associated with this performance measure in each sex. When swimming in small (n=6) mixed-sex groups at 28 degrees C, males swam, on average, over 10cms(-1) faster than females despite being significantly smaller. Body shape was sexually dimorphic, with males and females exhibiting small, but statistically significant differences in most aspects of body shape. Body shape explained 18 and 43% of the variation in U-crit among males and females. In general, effects of body shape on swimming performance appeared to be sex limited, whereby different aspects of body shape affected performance in each sex, although the contribution of the distance between pelvic and anal fins to swimming performance was weakly sexually antagonistic.
Formatted abstract
This study compared prolonged swimming performance (Ucrit) between male and female Danio rerio, and characterized how body shape was associated with this performance measure in each sex. When swimming in small (n = 6) mixed-sex groups at 28° C, males swam, on average, over 10 cm s−1 faster than females despite being significantly smaller. Body shape was sexually dimorphic, with males and females exhibiting small, but statistically significant differences in most aspects of body shape. Body shape explained 18 and 43% of the variation in Ucrit among males and females. In general, effects of body shape on swimming performance appeared to be sex limited, whereby different aspects of body shape affected performance in each sex, although the contribution of the distance between pelvic and anal fins to swimming performance was weakly sexually antagonistic.
Keyword Evolution
Prolonged swimming speed
Sexual antagonism
Ucrit
WIK strain
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Biological Sciences Publications
 
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