Fig. 1. Tetanic activation and relaxation time and twitch time for isometric contractions in sheepshead and kingfish muscle. Values (means ± s.e.m.) are given at three body positions for red muscle and two body positions for white and pink muscle. In kingfish red muscle there is a significant effect of longitudinal position on activation time (asterisk). Sheepshead red muscle there is a significant effect of longitudinal position on relaxation time and twitch time (asterisk). Definitions of variables and statistical analysis can be found in the text. N=5 (sheepshead red muscle), N=4 (kingfish red muscle and sheepshead white muscle), N=6 (sheepshead pink muscle).