We evaluated a bioenergetics model for adult largemouth bassMicropterus salmoidesat two temperatures (22°C and 27°C) and two feeding levels (ad libitum and 2% wet body mass) in the laboratory. Three statistical methods were used to assess agreement between predicted and observed growth and consumption during a 9-week period. Multivariate profile analysis indicated no significant deviations between predicted and observed mean body masses at the end of each week of the experiment; partitioning mean square error revealed that 87% of the variance was attributed to random variation rather than to systematic variation; and a reliablility index indicated agreement between predicted and observed masses within a factor of 1.03. Predicted cumulative food consumption during the 9-week period was 9.4% less than that observed. Model predictions of mean daily consumption rates closely tracked observed values when fish were not fed to excess, but the model did not perform as well under ad libitum feeding conditions. However, multivariate profile analysis detected no significant deviations between predicted and observed mean consumption rates from each week; random variation was the largest source of error (78%); and the reliability index showed agreement between predicted and observed mean weekly consumption rates within a factor of 1.38. Agreement between model estimates and observed growth and food consumption further corroborates the largemouth bass bioenergetics model within the limited range of temperatures and feeding conditions tested.