|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
First published online August 17, 2006
Journal of Experimental Biology 209, 3420-3428 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02346
Effect of temperature on maximum swimming speed and cost of transport in juvenile European sea bass (Dicentrarchus labrax)
1 Station Méditerranéenne de l'Environnement Littoral, 1 Quai
de la Daurade, Sète, 34200 France
2 Centre de Recherche sur les Ecosystèmes Littoraux
Anthropisés, Place du Séminaire, L'Houmeau, 17137 France
and
3 University of Bergen, Biology Department, Thormøhlensgt. 55, Bergen
5020, Norway
* Author for correspondence (e-mail: guy.claireaux{at}univ-montp2.fr)
Accepted 23 May 2006
This study is an attempt to gain an integrated understanding of the interactions between temperature, locomotion activity and metabolism in the European sea bass (Dicentrarchus labrax). To our knowledge this study is among the few that have investigated the influence of the seasonal changes in water temperature on swimming performance in fish. Using a Brett-type swim-tunnel respirometer the relationship between oxygen consumption and swimming speed was determined in fish acclimatised to 7, 11, 14, 18, 22, 26 and 30°C. The corresponding maximum swimming speed (Umax), optimal swimming speed (Uopt), active (AMR) and standard (SMR) metabolic rates as well as aerobic metabolic scope (MS) were calculated. Using simple mathematical functions, these parameters were modelled as a function of water temperature and swimming speed. Both SMR and AMR were positively related to water temperature up to 24°C. Above 24°C SMR and AMR levelled off and MS tended to decrease. We found a tight relationship between AMR and Umax and observed that raising the temperature increased AMR and increased swimming ability. However, although fish swam faster at high temperature, the net cost of transport (COTnet) at a given speed was not influence by the elevation of the water temperature. Although Uopt doubled between 7°C and 30°C (from 0.3 to 0.6 m s-1), metabolic rate at Uopt represented a relatively constant fraction of the animal active metabolic rate (40-45%). A proposed model integrates the effects of water temperature on the interaction between metabolism and swimming performance. In particular the controlling effect of temperature on AMR is shown to be the key factor limiting maximal swimming speed of sea bass.
Key words: swimming, cost of transport, metabolism, temperature, sea bass, modelling
This article has been cited by other articles:
|
|
 |
|
  E. A. Jones, A. S. Jong, and D. J. Ellerby The effects of acute temperature change on swimming performance in bluegill sunfish Lepomis macrochirus J. Exp. Biol., May 1, 2008; 211(9): 1386 - 1393. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. L. Kendall, K. S. Lucey, E. A. Jones, J. Wang, and D. J. Ellerby Mechanical and energetic factors underlying gait transitions in bluegill sunfish (Lepomis macrochirus) J. Exp. Biol., December 15, 2007; 210(24): 4265 - 4271. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. A. Jones, K. S. Lucey, and D. J. Ellerby Efficiency of labriform swimming in the bluegill sunfish (Lepomis macrochirus) J. Exp. Biol., October 1, 2007; 210(19): 3422 - 3429. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. P. Farrell, M. Axelsson, J. Altimiras, E. Sandblom, and G. Claireaux Maximum cardiac performance and adrenergic sensitivity of the sea bass Dicentrarchus labrax at high temperatures J. Exp. Biol., April 1, 2007; 210(7): 1216 - 1224. [Abstract] [Full Text] [PDF]
|
|
