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

Table 2

Trophic level (Troph) and mean metal concentrations (µg g⁻¹, dry weight) in edible muscle of fishes from markets of NW Mexico.

Troph	2.1	3.3	4.0	4.2
Metal	Mugil cephalus	Diapterus spp.	Lutjanus spp.	Shark
Cu	2.53±0.72^a	1.04±0.66^b	1.83±1.61^ab	1.50±1.01^ab
Zn*	31.89±27.58^a	21.49±7.39^a	19.93±10.45^a	19.62±15.36^a
Cd	0.26±0.13^a	0.18±0.17^a	0.29±0.25^a	0.34±0.26^a
Pb*	0.12±0.11^a	0.04±0.05^a	0.14±0.05^a	0.08±0.09^a

Equal or common letters indicate lack of significant difference between data in the same row (one-way ANOVA, 𝛼=0.05). a ≤ ab ≤ b and a < b. *Nonparametric test.