Investigating the relationship between some element concentrations in liver and muscle of Vimba persa and growth indices during different seasons in the southwest coasts of the Caspian Sea

      In this study, in order to determine the amount of 36 elements contamination in muscle and liver tissues Vimba persa in the southwestern coast of the Caspian Sea (Guilan Province), its relationship with growth indices (length and weight, condition factor and hepatosomatic index) were investigated. This study was conducted to determine the element concentrations in muscle and liver tissues of Vimba persa from autumn 2017 through spring 2018 in the southwestern part of the Caspian Sea (Astara, Anzali and Kiashahr beaches). Samplings were carried out on the seasonal basis using a beach seine, and a total of 82 Vimba persa were caught. Measurements of metals were measured using inductively coupled plasma- optical emission spectrometry (ICP-OES). The higher element concentration reported in the fish muscle and liver belonged to P. The average concentration of metals in the muscle and liver tissues were in the order of S, K, Na and Ca respectively. The relationship between the amount of some elements with growth indices were significant (P<0.05). The results exhibited that the Ag، Ba، Be، Bi، Ce، La، Li، Mn، Mo، Sc، Sn، Th، Ti، W، Y in all three seasons were below detectable levels.