Temporal Changes in Concentrations of Some Trace Elements in Muscle Tissue of Crayfish, Astacus leptodactylus (Eschscholtz, 1823), from Keban Dam Lake.
Crayfish (Astacus leptodactylus Eschscholtz, 1823) is the native crayfish species in Turkey. It was exported regularly to Western Europe. In this study, bioaccumulation and temporal trends of some trace elements (arsenic: As, cadmium: Cd, copper: Cu, mercury: Hg, lead: Pb, and zinc: Zn) in edible abdomen muscle of crayfish from Keban Dam Lake (Elazığ, Turkey) were investigated for the 2006-2012 period. Sequence of metal concentration levels was Zn > Cu > Hg > Pb > Cd > As in muscle tissues. The highest concentration of Zn (21.69 mg kg(-1)) was detected in 2006, while the lowest (4.35 mg kg(-1)) in 2009. In general, it was found that the concentrations of trace elements investigated were lower than the maximum permissible limits of the food regulations of the Ministry of Food, Agriculture, and Livestock (MFAL), the Turkish Food Codex and Commission Regulation (EC). If the crayfish selected for the study are recognized as bioindicators of environmental pollution, then it is possible to conclude that the changes in studied trace elements concentrations in the Keban Dam Lake are being steady.
Fisheries Faculty, University of Tunceli, 62000 Tunceli, Turkey.
Onder
O
Aksu
Department of Chemical Engineering, Faculty of Engineering, University of Tunceli, 62000 Tunceli, Turkey.
Ragip
R
Adiguzel
Department of Bioengineering, Faculty of Engineering, University of Tunceli, 62000 Tunceli, Turkey.
Veysel
V
Demir
Department of Environmental Engineering, Faculty of Engineering, University of Tunceli, 62000 Tunceli, Turkey.
Numan
N
Yildirim
Fisheries Faculty, University of Tunceli, 62000 Tunceli, Turkey.
Durali
D
Danabas
Department of Environmental Engineering, Faculty of Engineering, University of Ardahan, 75000 Ardahan, Turkey.
Sebahat
S
Seker
Department of Bioengineering, Faculty of Engineering, University of Tunceli, 62000 Tunceli, Turkey.
Safak
S
Seyhaneyildiz Can
Vocational School of Tunceli, University of Tunceli, 62000 Tunceli, Turkey.
Mustafa
M
Ates