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Limits to exhaustive exercise in fish.

¹Department of Biology and the Centre for Coastal Studies and Aquaculture, University of New Brunswick, Canada. jkieffer@unbsj.ca

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology

|August 11, 2000

Summary

Fish exercise to exhaustion causes significant physiological changes. Factors like body size, temperature, fasting, and training impact fish exercise performance and recovery, highlighting individual variability.

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Area of Science:

Physiology
Exercise Science
Aquatic Biology

Background:

Exhaustive exercise in fish induces substantial metabolic, acid-base, and ionic disturbances.
Abiotic and biotic factors are known to influence burst exercise capacity and recovery in fish.

Purpose of the Study:

To review the influence of key factors on fish exercise physiology.
To examine how body size, temperature, fasting/starvation, and training affect exercise performance and recovery in fish.

Main Methods:

Literature review synthesizing existing research on fish exercise physiology.
Analysis of studies investigating the impact of various factors on fish exercise response.

Main Results:

Body size, temperature, fasting/starvation, and training significantly modulate physiological responses to exercise.

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These factors influence both the capacity for burst exercise and the subsequent recovery process.

Conclusions:

The ability of fish to perform and recover from exhaustive exercise is constrained by multiple factors.
Significant intra-specific variability exists in the physiological responses of fish to exercise, influenced by pre-exercise conditions.