|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Journal of Experimental Biology, Vol 203, Issue 2 347-357, Copyright © 2000 by Company of Biologists
JOURNAL ARTICLES |
SP Reidy, SR Kerr and JA Nelson
Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J1.
Individual Atlantic cod (Gadus morhua) were exercised using three different measures of swimming performance. (1) An endurance test (critical swimming speed, U(crit), protocol) designed to assess predominantly aerobic endurance swimming (duration hours). (2) An acceleration test (U(burst)), in which the fish were required to swim against a rapidly increasing current until exhausted (duration minutes). This test was designed to assess predominantly glycolytic-based swimming capacity. (3) A sprint test that examined the animals' ability to swim away from a sudden stimulus (duration seconds). Rates of oxygen consumption ( mdot (O2)) during the endurance test and various morphological variables of the individual fish were also measured. Both aerobic and anaerobic swimming performance of individual cod were found to be significantly repeatable over a 3 month period. mdot (O2) during the U(crit) protocol was also significantly repeatable at intermediate to high swimming speeds, but not at low speeds. Our results support extrapolation from metabolic rates at incremented swimming speeds to zero activity as the best way to measure standard metabolic rate in cod. While performance in the U(crit) test and the sprint test were positively correlated, there was a negative correlation between performance in the U(crit) test and performance in the U(burst) test. This implies a potential trade-off in individual cod between stamina and the ability to use glycolytic-based locomotion. Inter-individual variation in swimming performance during these protocols, while substantial, was not correlated with individual variation in fin surface areas, age or morphology. However, U(burst) performance was dependent upon the sex of the animals, while performance during the U(crit) protocol was significantly correlated with their aerobic scope for activity.
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati 
Twitter What's this?
This article has been cited by other articles:
|
|
 |
|
  S. Marras, G. Claireaux, D. J. McKenzie, and J. A. Nelson Individual variation and repeatability in aerobic and anaerobic swimming performance of European sea bass, Dicentrarchus labrax J. Exp. Biol., January 1, 2010; 213(1): 26 - 32. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Farwell and R. L. McLaughlin Alternative foraging tactics and risk taking in brook charr (Salvelinus fontinalis) Behav. Ecol., September 1, 2009; 20(5): 913 - 921. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S.-J. Fu, L.-Q. Zeng, X.-M. Li, X. Pang, Z.-D. Cao, J.-L. Peng, and Y.-X. Wang The behavioural, digestive and metabolic characteristics of fishes with different foraging strategies J. Exp. Biol., July 15, 2009; 212(14): 2296 - 2302. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. B. Langerhans Predictability of phenotypic differentiation across flow regimes in fishes Integr. Comp. Biol., December 1, 2008; 48(6): 750 - 768. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. C. Adolph and T. Pickering Estimating maximum performance: effects of intraindividual variation J. Exp. Biol., April 15, 2008; 211(8): 1336 - 1343. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. B. Chapman, L. J. Morrell, T. G. Benton, and J. Krause Early interactions with adults mediate the development of predator defenses in guppies Behav. Ecol., January 1, 2008; 19(1): 87 - 93. [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]
|
|
|
|
|
|
G. J. Lurman, C. H. Bock, and H.-O. Portner An examination of the metabolic processes underpinning critical swimming in Atlantic cod (Gadus morhua L.) using in vivo 31P-NMR spectroscopy J. Exp. Biol., November 1, 2007; 210(21): 3749 - 3756. [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]
|
|
|
|
|
|
R. Fisher and J. D. Hogan Morphological predictors of swimming speed: a case study of pre-settlement juvenile coral reef fishes J. Exp. Biol., July 15, 2007; 210(14): 2436 - 2443. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Martinez, M. Bedard, J.-D. Dutil, and H. Guderley Does condition of Atlantic cod (Gadus morhua) have a greater impact upon swimming performance at Ucrit or sprint speeds? J. Exp. Biol., September 1, 2004; 207(17): 2979 - 2990. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. P. Odell, M. A. Chappell, and K. A. Dickson Morphological and enzymatic correlates of aerobic and burst performance in different populations of Trinidadian guppies Poecilia reticulata J. Exp. Biol., October 15, 2003; 206(20): 3707 - 3718. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. K. Ghalambor, J. A. Walker, and D. N. Reznick Multi-trait Selection, Adaptation, and Constraints on the Evolution of Burst Swimming Performance Integr. Comp. Biol., July 1, 2003; 43(3): 431 - 438. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Martinez, H. Guderley, J.-D. Dutil, P. D. Winger, P. He, and S. J. Walsh Condition, prolonged swimming performance and muscle metabolic capacities of cod Gadus morhua J. Exp. Biol., February 1, 2003; 206(3): 503 - 511. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. S. Wilson, R. S. James, and R. Van Damme Trade-offs between speed and endurance in the frog Xenopus laevis: a multi-level approach J. Exp. Biol., April 15, 2002; 205(8): 1145 - 1152. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. C. Gibb and K. A. Dickson Functional Morphology and Biochemical Indices of Performance: Is there a Correlation Between Metabolic Enzyme Activity and Swimming Performance? Integr. Comp. Biol., April 1, 2002; 42(2): 199 - 207. [Abstract] [Full Text] [PDF]
|
|
