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Table 1 Sources of variation in blood vessel diameter for four major vessels. ANOVA models were run using Family, Environment and Family by Environment interaction as the modelled sources of variation. Critical F values for the given degrees of freedom (DF) and the calculated F values are given for diameters of the Dorsal and Caudal veins and the dorsal and Caudal arteries. Significant F values (p < 0.05) are in bold face and asterisks represent highly significant (p < 0.005) p values.

From: Cardiovascular system in larval zebrafish responds to developmental hypoxia in a family specific manner

Source DF F value
   Critical Dorsal vein Caudal vein Dorsal artery Caudal artery
Family 3 2.91 11.35* 1.35 8.74* 0.58
Environment 1 4.16 1.87 3.70 12.10* 7.71*
Family × Environment 3 2.91 0.30 0.30 2.11 0.46
Error 38