In the present study, the heavy metal concentration (Cd, Cu, Pb, Ag, Co, Cr, Fe, Mn, Ni & Zn)

In the present study, the heavy metal concentrations in different organs (skin and muscle tissue) were studied in Lessepsian suez puffer (Lagocephalus suezensis Clark and Gohar, 1953) collected from Iskenderun Bay, Northeastern Mediterranean. Heavy metals (Cd, Cu, Pb, Co, Cr, Fe, Mn, Ni & Zn) were analyzed in different organs for the above mentioned species. The maximum heavy metals concentrations in muscle tissues of the species were Cu 1.750 mg/kg, Fe 18.096 mg/kg, Mn 0.606 mg/kg, Zn 228.571 mg/kg, Cd 2.00 mg/kg, Co 3.571 mg/kg, Cr 0.952 mg/kg, Ni 1.500 mg/kg and Pb 18.095 mg/kg. Zn was detected higher in all the samples followed by Fe, Pb, Co, Cd, Cu, Ni, Cr and Mn. In the present study, heavy metal concentrations were found high in muscle tissues when compared to skin. The Pb, Cd and Zn concentration over the recommended limits was found in Lagocephalus suezensis. Further, this is the first report on distribution of heavy metals and proximate compositions of commercialized important edible pufferfishes from Iskenderun Bay, Turkey.

Efforts are paid to increase production to meet the high demands in the growing aquaculture sector, which is included in agricultural activities. Here, wastewater from aquaculture production contains pollutants. Fish feces and pollutants formed by unconsumed feeds, that constitute the majority of the wastewater, cause an increase in the amount of suspended solids, nitrogenous wastes and phosphorus in the water. Conventional wastewater treatment is often used in aquaculture systems. However, sustainable solutions are needed for the protection of aquatic ecosystems and the reuse of water resources. The bioremediation method includes the removal, reduction and conversion of contaminated compounds by initiating the biological process. In this review, bioremediation methods that can be used in aquaculture, water quality management, treatment of waste and sludge originating from aquaculture systems are discussed. In addition, the importance of bioremediation in terms of sustainability in aquaculture and managing environmental effects was evaluated.