Fig. 2. Ventricular properties following anemia and cold acclimation. The first pair of bars is from animals sacrificed at 4 weeks, showing the effects of anemia alone. The second set of bars represents the influence of anemic pre-treatment on the effects of cold-acclimation. The effects of temperature alone are apparent by comparing the untreated fish (solid bars). Based on ANOVA, followed by Tukey's post-hoc, we identified groups that were significantly different from controls at 4 weeks (^*) or () phenylhydrazine treated at 4 weeks.