This review focuses on the responses of cardiac physiology and anatomy to …

• Summary
• Introduction
• Temperature
• Sexual maturation
• Feeding, exercise and inactivity
• Hypoxia
• Cardiac variability among fish stocks
• Summary and perspective
• Acknowledgements
• References
• Figures
• Tables

Biology Articles » Hydrobiology » Marine Biology » Cardiac plasticity in fishes: environmental influences and intraspecific differences » Tables

Tables

- Cardiac plasticity in fishes: environmental influences and intraspecific differences

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Table 1. Morphometrics and ventricular energy status of fed and food deprived (8–10 weeks) Atlantic cod Gadus morhua

Values are means ± S.E.M.

^* Significant differences (P

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Table 2. Maximum in situ cardiac performance in fed and food deprived Atlantic cod Gadus morhua

Values are means ± S.E.M. (N=8 or 9)

^* Significant difference (P

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 Table 3. Maximum cardiovascular parameters in hearts of `wild' and hatchery-reared Oncorhynchus mykiss

Group Relative ventricular mass (%) (ml min-1 kg-1 fish)  (ml min-1 g-1 ventricle) VS (ml min-1 g-1 ventricle) Power output (mW g-1 ventricle) Wild steelhead (N=8) 0.094±0.003 68.6±3.4a 73.2±3.2 1.02±0.05 7.34±0.19 Sea-ranched steelhead (N=8) 0.102±0.005 69.3±3.3a 68.0±3.1 0.97±0.04 7.16±0.21 Oregon Hatchery rainbows (N=6) 0.101±0.005 77.7±2.8ab 76.6±3.4 1.08±0.06 7.00±0.27 Washington Hatchery rainbows (N=8) 0.107±0.006 81.3±3.9b 76.9±5.0 1.08±0.05 7.43±0.45

, cardiac output; V_S stroke volume.

No significant differences were found between groups, with the exception of (ml min^-1 kg^-1) for Washington Hatchery-reared rainbows. This difference was probably related to the number of mature males in this group (5 of 8) (A. K. Gamperl et al., unpublished). Dissimilar letters indicate a significant difference as determined by one-way ANOVA.

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