Fig. 9. Relationship of relaxation time to normalized total parvalbumin expression in sheepshead muscle. For each fish (different colored symbols), the relationship of relaxation time to total parvalbumin expression is shown. r² values are given for lines for which there is a substantial variation in the independent variable (and at least three points). In the red muscle, all four kingfish and all five sheepshead show the same pattern of decreasing relaxation time with increasing total parvalbumin content. In the white muscle, there is little variation in relaxation time.