Determination of heavy metal levels in water, sediment and tissues of tench (Tinca tinca L., 1758) from Beyşehir Lake (Turkey)

Abstract

In the present study, some heavy metals (Cu, Fe, Zn and Mn) were seasonally determined in water, sediment and some tissues of fish Tinca tinca from Beyşehir Lake, which is an important bird nesting and visiting area, a water source for irrigation and drinking. In the water, Fe has the highest concentrations among the studied metals. Generally, the metal concentrations increased in the hottest period decreased in warm seasons. Results for levels in water were compared with national and international water quality guidelines, as well as literature data reported for the lakes. Fe was the highest in sediment samples, also Cu and Zn were the highest in spring, while Fe and Mn were in autumn. Among the heavy metals studied, Cu and Mn were below the detection limits in some tissues. Generally, higher concentrations of the tested metals were found in the summer and winter, compared with those during the autumn and spring seasons. High levels of heavy metals were found in liver of T. tinca, while low levels in muscle samples. Metal concentrations in the muscle of examined fish were within the safety permissible levels for human consumption. The present study shows that precautions need to be taken in order to prevent further heavy metal pollution.

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“…Zn concentration ranged from 8.20 to 23.75 mg kg -1 in this study. These values match with results of Tekin-Özan and Kir (2006) and Tekin-Özan (2008) who have determined Zn content for S. lucioperca, C. carpio and L. cephalus in Beyşehir Lake. Zn concentrations in all fish specimens of this study were lower than all guidelines limits in Table 4, but were inacceptable level with regard to diet.…”

“…Heavy metal content of Cyprinus carpio, Leuciscus cephalus and Stizostedion lucioperca were studied by Tekin-Özan andKir (2006 and2008). Tekin-Özan (2008) and Aktumsek and Gezgin (2011) reported heavy metal content in water, sediment and tissues of Tinca tinca.…”

Human health risk and ecological risk assessment of metals in fishes, shrimps and sediment from a tropical river

“…This observation was similar to the observation of other workers for many species of fish in different aquatic systems (Tekin-Ozan 2008;Yilmaz and Dogan 2008). This can be attributed to the fact that Zn is present in many enzymes (Karadede and Unlu 2000;Alhas et al 2009).…”

The Investigation of Heavy Metal Levels in Water and Sediment From Işikli Lake (Turkey) in Relation to Seasons and Physico-Chemical Parameters

“…Among the analyzed metals, the highest and lowest metals were Fe and Cd. Similar results were reported in Beyler Reservoir (Fındık, 2013), Hazar Lake (Karadede-Akın, 2009), Karataş Lake (Başyiğit and Tekin-Özan, 2013), Kızılırmak River (Akbulut and Akbulut, 2010), Beyşehir Lake (Tekin-Özan, 2008). Ghaffar et al (2008), reported that Fe facilities the precipitation of other metals and found at low levels when precipitation occurs.…”

“…Cd, Cu and Mo levels varied significantly (p<0.05) from season to season. Tekin-Özan (2008) reported that the Cu and Zn levels were highest in spring, while Fe and Mn were in autumn in Beyşehir Lake's sediment. In Beyler reservoir sediment, Fe, Al, Zn, Cu, Mn and B were highest in summer, while Cr, Ni, Cd and Pb were in spring (Fındık and Turan, 2012).…”