Effect of incubation and rearing temperature on locomotor ability in barramundi, Lates calcarifer Bloch, 1790

Carey, G.R. and Franklin, C.E. (2009) Effect of incubation and rearing temperature on locomotor ability in barramundi, Lates calcarifer Bloch, 1790. Marine & Freshwater Research, 60 3: 203-210. doi:10.1071/MF07250


Author Carey, G.R.
Franklin, C.E.
Title Effect of incubation and rearing temperature on locomotor ability in barramundi, Lates calcarifer Bloch, 1790
Formatted title
Effect of incubation and rearing temperature on locomotor ability in barramundi, Lates calcarifer Bloch, 1790
Journal name Marine & Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
Publication date 2009-03
Sub-type Article (original research)
DOI 10.1071/MF07250
Volume 60
Issue 3
Start page 203
End page 210
Total pages 8
Editor A J Boulton
K Hunter
Place of publication Australia
Publisher CSIRO Publishing
Collection year 2010
Language eng
Subject C1
970106 Expanding Knowledge in the Biological Sciences
0608 Zoology
Formatted abstract
Temperature profoundly influences virtually all aspects of fish biology. Barramundi, Lates calcarifer Bloch, 1790, is a catadromous fish that undergoes several migrations in its life cycle, necessitating locomotion under various thermal conditions. The present study examined the effects of varying thermal regimes on performance in juvenile L. calcarifer by determining the effects of rearing and ambient temperature on burst (Umax) and sustained (Ucrit) swimming ability. Fish were incubated at three set temperatures, 26°C (cool), 29°C (control) and 31°C (warm), from egg fertilisation until first feeding before some of the larvae were allocated to different temperatures to differentiate the effects of incubation temperature v. rearing temperature on subsequent swimming performance. Individuals incubated and reared at the cool (26°C) temperature showed significantly faster burst speeds at the 26°C test temperature than fish from any other treatment group. This indicates the ability of L. calcarifer to thermally acclimate burst swimming. However, there was no evidence that incubation temperature (as opposed to rearing temperature) affected burst or sustained swimming ability. Swimming ability was significantly affected by the test temperature, with the Umax of fish highest at the 29°C test temperature. Lower test temperatures depressed both burst and sustained swimming ability. Juvenile L. calcarifer can acclimate Umax, but swimming ability was unaffected by incubation thermal history.
Keyword acclimation
fish
phenotypic plasticity
Ucrit
Umax.
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biological Sciences Publications
Ecology Centre Publications
 
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Created: Thu, 03 Sep 2009, 08:26:57 EST by Mr Andrew Martlew on behalf of School of Biological Sciences