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Ural M.,Tunceli University | Arca S.,Aquaculture Research Institute | Ornekci G.N.,Aquaculture Research Institute | Demirol F.,Aquaculture Research Institute | And 5 more authors.
Toxicological and Environmental Chemistry | Year: 2012

Metal concentrations were determined in water, sediment, and freshwater fish samples (Squalus cephalus, Barbus esocinus, and Barbus xanthopterus) collected from Karakaya Dam Lake, Turkey, to estimate the risk of human consumption and pollution. Metal concentrations differed between the species (p & 0.05) even as they were living in similar habitats. Metal analyses were performed by inductively coupled plasma optical emission spectroscopy (ICP-OES). Cd and Hg were not detected in water, sediment, and fish samples. Also, Mn, Ni, and Se were not determined in water. The accumulation order of the metals were found to be Fe > Zn = Cu in water and Fe > Zn > Mn > Ni > Cu in sediment. In general, the accumulation order of elements in the tissues all of the species sampled were found as Fe > Zn > Se > Mn > Cu > Ni > Cd in muscle, Zn > Fe > Mn > Se > Cu > Ni > Cd in gills, Fe > Zn > Se > Mn > Cu > Ni > Cd in liver and gonad, and Zn > Fe > Cu > Mn > Se > Ni > Cd in kidney. It was concluded that the fish from the dam lake are not heavily burdened with metals, but they should be controlled periodically to avoid excessive intake of trace metals by humans, and to monitoring the pollution of aquatic environment. © 2011 Taylor and Francis Group, LLC.


Ural M.,Tunceli University | Uysal K.,University of Science and Arts of Iran | Cicek A.,Anadolu University | Kose E.,University of Science and Arts of Iran | And 5 more authors.
Fresenius Environmental Bulletin | Year: 2011

Trace element concentrations were determined in water, sediment and fish samples (Carassius auratus, Capoeta trutta and Cyprinus carpio) collected from Atatürk Dam Lake which is the largest dam lake in Turkey. Trace element analyses were measured with ICP-OES. Cd and Hg were not detected in water, sediment and fish samples. Also, Mn and Ni concentrations were not determined in water. In Atatürk Dam Lake, the accumulation orders of trace elements were found to be Fe >Zn >Cu=Se in water, and Fe >Mn >Ni >Zn >Cu>Se in sediment. In general, the accumulation orders of elements in the tissues of the species were nearly similar to each other. The highest bioaccumulation factors (BAFs) were determined for Zn, in water and in all tissues of the species, except for Fe in the liver of Capoeta trutta. The BAFs calculated in sediment area were generally lower than 1. Mean concentrations for all trace element levels in species muscles were found at permissible levels set by FAO and Turkish legislation. As a result, trace element concentrations of water, sediment and fish samples in Atatürk Dam Lake were not found at the risk levels. But it may be said that some steps should be taken in order to protect the present situation. © by PSP.

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