The survey accumulation of Zinc with chemical compositions in muscle of eight fish species, Iran

A comparative study were conducted on concentration of Zinc and Protein, Lipid, Ash and Moisture in eight fish species of Cyprinus carpio, Oncorhynchus mykiss, Aristichthys nobilis, Hypophthalmichthys molitrix, Ctenopharyngodon idella, Scomberomorus commerson, Scomberomorus guttatus and Otolithes ruber. Metals were extracted from the tissues using wet digestion method and concentration of the heavy metals were measured by atomic absorption spectrophotometer. Data were analyzed with SPSS17 software in terms of t-test which determine presence or nonpresence of the significant difference in confidence level of 95% (P=0.05). Data were normalized Smirnov-Kolmogorof test. The relationship between heavy metal concentrations found in fish muscle and the chemical composition of the Pearson correlation test was used. The results of this study showed concentration of Zn in the muscle of fishes was 7.73±0.45 mg/Kg/ww. Also content of protein, lipid, ash in the muscle of fishes were 19.67±0.78, 2.45±0.45, 1.49±0.23 g/100g and level of moisture was 78±1.89 %. Results showed accumulation of Zn in musle of fishes with levels of protein, lipid, ash and moisture significant difference between them (P<0.05).