Table 2.

Mean biomarker data (±SD) analyzed in the present work, for each species collected from the three study areas: Sado 1 (north); Sado 2 (south), and Reference.

		CAT (U/mg protein)	GST (nmol/min/mg protein)	GSHt (nmol/mg protein)	GSH/GSSG	LPO (nmol/mg protein)
Area
Sado 1
	Clam	24.75 ± 22.37				0.002 ± 0.001
	Fish	24.54 ± 21.94	0.12 ± 0.11			1.76 ± 1.05
	Cuttlefish		0.005 ± 0.002	0.11 ± 0.13	2.08 ± 2.39	0.69 ± 0.38
Sado 2
	Clam	33.37 ± 27.84				0.003 ± 0.002
	Fish	46.91 ± 26.23	0.31 ± 0.14			1.26 ± 0.72
	Cuttlefish		0.003 ± 0.001	0.04 ± 0.08	2.22 ± 2.02	0.57 ± 0.32
Reference
	Clam	18.70 ± 9.39				0.001 ± 0.000
	Fish	25.34 ± 20.64	0.21 ± 0.09			1.05 ± 0.52
	Cuttlefish		0.002 ± 0.001	0.04 ± 0.03	2.82 ± 1.73	0.23 ± 0.09

Data from clam (Ruditapes decussatus), sole (Solea senegalensis), and cuttlefish (Sepia officinalis) were retrieved from Carreira et al. (2013), Gonçalves et al. (2013), and Rodrigo et al. (2013), respectively.