Fig. 2. Effects of water temperature and stock on the maximal cardiac performance of largemouth bass. (A) Cardiac output; (B) heart rate; (C) stroke volume. Asterisks indicate significantly different (P<0.05) values within a stock at the two different temperatures. Dissimilar letters indicate significantly different (P<0.05) values between stocks at each temperature. Additional details on the statistical tests are given in Table 2. Values are means ± 1 S.E.M. Sample sizes are provided in Table 1.