highly significantP = 0.0000
3B ) showed statistically significant differences among populations (df: 2, F = 3.725, P = 0.043) and the interaction between Artemia population and As concentration was also highly significant (df: 3, F = 40.185, P = 0.0000). % mortality was significantly lower in A. parthenogenetica from Odiel compared with A. parthenogenetica from Cabo de Gata (P = 0.0216), and higher in A. franciscana compared with A. parthenogenetica from Cabo de Gata (P = 0.009).