Ranim Othman^*(1)Mohamad Galiya⁽¹⁾Hussam Eddin Laika⁽²⁾ Zouher Almajid ⁽¹⁾

(1). Department of Zoology, College of Sciences, Tishreen University, Lattakia, Syria.

(2). High Institute of Marine Research, Tishreen University, Lattakia, Syria.

(*Corresponding author: Ranim Othman, E-mail:  ranim.mr.othman@gmail.com)        

Received: 28/06/2023                                 Accepted:10/07/2023

Abstract: 

 This research aims to determine the traces of some heavy metals in tissues of liver and muscles of two marine commercial fish species caught from the Ras Albasit (Lattakia city beach – Syria) using Atomic Absorption Spectroscopy (Flame-AAS). The results showed the accumulation of the studied metal elements was higher in Little tunny Euthynnus alletteratus than their accumulation in Bullet tuna Auxis rochei. The concentrations of these element were higher in liver of the first species (Cd: 0.615 ± 0.05 mg/kg and Pb: 3.83  ± 0.349 mg/kg) than their concentration in the liver of second species (Cd: 0.531 ± 0.062 mg/kg and Pb:  3.683 ±  0.591 mg/kg ). The same issue applies to the muscles of both species respectively: (Cd: 0.162 ± 0.024 mg/kg & Pb: 1.553 ± 0.129 mg/kg) and ( Cd: 0.152 ± 0.012 mg/kg & Pb: 1.484 ± 0.170 mg/kg). The difference in the concentrations of these elements between the two studied fish species can be attributed to the different morphometric (Weight, Length) and age characteristics.

Keywords: Heavy metals, Auxis rochei, Euthynnus alletteratus, Syrian marine waters, Ras Al-Basit.

Full paper in English: pdf