Journal article
Mechanisms of Heat Transfer and Time-Dependent Modeling of Body Temperatures in the Largemouth Bass (Micropterus salmoides)
Physiological zoology, v 53(2), pp 222-239
01 Apr 1980
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A time-dependent model describing mechanisms of heat transfer in fish was developed and tested. The model predicted thermal time constants of fish (100-1,600 g) and transient changes in body temperatures of fish experiencing step changes in ambient temperature (heating or cooling). Model sensitivity analysis indicated that body diameter, insulation thickness, and tissue thermal conductivity were controlling variables in the transfer of heat between a fish and water. Fish metabolic rate and water velocity across fish surfaces did not appreciably affect heat transfer rates. Results from experimental heating and cooling studies performed on Micropterus salmoides indicated that body wall thicknesses for three anatomical compartments (midgut, brain, and heart) were linear functions of body mass. Midgut and brain thermal time constants were dependent on body mass. Heart thermal time constants were independent of body mass, indicating that the temperature of the heart may be a factor limiting the thermal exploitive behavior of different-size fish. The midgut region exchanged heat at the slowest rate and the heart region exchanged heat at the fastest rate. The cranial region exchanged heat at rates intermediate to those of the midgut and heart. We found statistically significant differences between deep body thermal time constants of live and dead M. salmoides, indicating differential mechanisms of heat exchange for living and nonliving fish.
Metrics
10 Record Views
Details
- Title
- Mechanisms of Heat Transfer and Time-Dependent Modeling of Body Temperatures in the Largemouth Bass (Micropterus salmoides)
- Creators
- Richard N. KubbJames R. SpotilaDavid R. Pendergast
- Publication Details
- Physiological zoology, v 53(2), pp 222-239
- Publisher
- University of Chicago Press
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1980JW14600011
- Other Identifier
- 991021013197404721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Physiology
- Zoology