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Quantitative distribution of muscle fiber types in the scup Stenotomus chrysops by Guixin Zhang; Douglas M. Swank; Lawrence C. Rome is a Environmental Science article available to read on EtoBox.

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Because the mass-specific power generated by myotomal muscle during swimming varies along the length of the fish, a realistic assessment of total power generation by the musculature requires integrating the product of mass-specific power and muscle mass at each position over the length of the fish. As a first step toward this goal, we examined the distribution of red, pink, and white muscle along the length of Stenotomus chrysops (scup) using histochemical and image analysis techniques. The largest cross-sectional area of red fibers occurs at 60% of total fish length and declines both anteriorly and posteriorly. By contrast, white fibers have the largest cross-sectional area in the anterior and decline dramatically moving posteriorly. The proportion of the fishes' cross-section occupied by red fibers increases from 1.37% to 8.42% moving posteriorly along the length of the fish. In contrast, the proportion of cross-sectional area occupied by pink fibers is constant (1.19%), while the proportional cross-sectional area of white fibers falls from 82.5% to 66.3%. The red, pink, and white fibers comprise 2.09,0.73, and 51.1%, respectively, of total fish weight. We also compared the distr

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Author

Guixin Zhang; Douglas M. Swank; Lawrence C. Rome

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0362-2525)

Published

1996

Language

EN

Field

Environmental Science (Physical Sciences)