Abstract
In this study, we investigated the differences between the gilthead bream fishes that live in cages and feed by fish feed (CF), had escaped from the cages and started to live in their natural medium (EF), and live in their natural medium and do not feed by fish feed (NF). We would like to demonstrate the micro pollutants and heavy metal residues in CF, EF and NF and reveal out the diversity in living in three different ambient conditions. We analyzed Mn, Cr, Zn, Sn, Ag, Hg, Cd, Cu, Ni and Pb residues and p-p’-DDE, α-BHC, endosulfan-sulfate, endrin, heptachlor, heptachlor epoxide, methoxychlor, p-p’-DDD, p-p’-DDT, β-BHC, aldrin, cypermethrin, dieldrin ve endosulfan pesticides in three types of gilthead bream (CF, EF and NF) and also researched the heavy metal residues in the marine sample that provided from Guvercinlik Cove in three different time intervals by gas chromatography-mass spectroscopy (GC-MS) and Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). Physical and chemical parameters of sea water samples were studied to reveal out the effect of fish feed between the regions. Heavy metal and organochlorine pesticides residues of gilthead bream muscle tissues from CF are remarkable higher than other regions when we evaluate the all results. The results show an indication of the significant health risks associated with the consumption of these contaminated fish in the cages. The morphology of gilthead bream fish liver tissue samples were studied by using scanning electron microscopy (SEM).
Highlights
Today, the effects of heavy metals have a great importance for human health and the environment, especially in aquatic food products
Toxicity levels of some heavy metals and pesticides in gilthead bream fishes endrin, aldrin, methoxychlor, cypermethrin, and endosulfan pesticides in three types of gilthead bream (CF, EF and NF) and researched the heavy metal residues in the sea water sample that provided from Guvercinlik cove
We investigated the physical and chemical parameters of Guvercinlik Cove’s sea water samples that collected in three different time intervals, firstly (Table 3). pH of sea water samples did not change seriously between three different time intervals from each sea sampling area, CF, EF and NF
Summary
The effects of heavy metals have a great importance for human health and the environment, especially in aquatic food products. Organochlorine pesticides (OCPs), which have been used extensively since the 1940s, are a major risk factor for human health. This type of pesticide is used for industrial and agricultural purposes and causes environmental pollution (Parrino et al, 2021; Witczak et al, 2018). OCPs are used in Turkey since 1945; the use of them has been restricted since 1983. The data that obtained by other researchers demonstrated the widespread use of these compounds in Turkey
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