Cadmium, Copper, Lead, and Zinc Contents of Fish Marketed in NW Mexico

Table 1

Mean (±standard deviation) of the metal concentrations (µg g⁻¹, dry weight) in edible muscle of fishes from markets of NW Mexico (one composite sample/market: 𝑛=3 for each state).

Species	State	Cd	Pb*	Zn*	Cu
M. cephalus	Sinaloa	0.36±0.01^a	0.11±0.09^a	19.7±12.7^a	2.40±0.10^a
	Sonora	0.25±0.11^a	0.17±0.14^a	26.2±12.2^a	2.44±0.73^a
	BC	0.16±0.10^a	0.07±0.10^a	49.8±44.5^a	2.75±0.66^a
Diapterus spp.	Sinaloa	0.28±0.27^a	0.04±0.05^a	22.5±9.5^a	0.22±0.12^a
	Sonora	0.19±0.14^a	0.01±0.01^a	20.7±3.8^a	1.34±0.32^b
	BC	0.08±0.02^a	0.08±0.07^a	21.2±10.5^a	1.57±0.24^b
Lutjanus spp.	Sinaloa	0.46±0.34^a	0.12±0.01^a	20.5±6.5^a	1.99±2.80^a
	Sonora	NA	NA	NA	NA
	BC	0.17±0.15^a	0.14±0.07^a	13.4±4.4^a	1.62±0.69^a
Shark	Sinaloa	0.44±0.15^a	0.03±0.04^a	29.7±26.4^a	1.35±0.84^a
	Sonora	0.39±0.17^a	0.12±0.11^a	16.4±2.3^a	2.27±1.26^a
	BC	0.18±0.08^a	0.08±0.13^a	12.7±1.8^a	0.89±0.51^a

Different letters indicate significant difference (a < b) between the values found in the same species obtained in the markets of different states (one-way ANOVA, 𝛼=0.05). *Nonparametric test, NA: data not available.