Metal Bioaccumulation of Mytilaster lineatus (Gmelin, 1791) Collected From Sinop Coast in the Southern Black Sea

Abstract

Objective: Metal bioaccumulation of the bivalve Mytilaster lineatus, based on different seasons and stations was investigated in Sinop Peninsula of the Black Sea. Soft tissues of mussels from Gazibey Rock and Içliman were taken during the spring and the summer of the year 2016 and were analyzed for Hg, Cd, Pb, Cu and Zn. Methods: The soft tissues of the mussels digested with Suprapur® HNO3 (nitric acid) using a Milestone Systems, Start D 260 microwave digestion system. The accuracy and precision of the method was verified by the simultaneous analysis of the certified reference materials NIST 2976 (mussel tissue) for the samples. The Inductively Coupled Plasma-Mass Spectrometer (ICP-MS), Agilent Technologies, 7700x was used for metal analyses. Results: Results showed that higher concentrations of almost all metals in Içliman than those in Gazibey Rock. However, no significant differences were detected between seasons except for both Cu and Zn. The metal amounts of M. lineatus ranged between 0.

Contamination levels and habitat use influence Hg accumulation and stable isotope ratios in the European seabass Dicentrarchus labrax

“…However, recent literature has shown that the amount of freshwater discharge of particulate Hg in this locality, and its bioaccumulation in marine biota, is negligible compared to other trace elements (e.g. < 50 ng.g -1 ww in fish liver, < DL in invertebrates) (Bat et al, 2019(Bat et al, , 2018. Therefore, our Black Sea sampling site can be considered as a relatively unpolluted area with regards to Hg (Table 1), excluding the hypothesis of a particular point source of anthropogenic origin.…”