Keban Baraj Gölü Örencik Mevkiinden (Elazığ) Yakalanan Capoeta trutta’nın Kas Dokusundaki Bazı Ağır Metal Düzeylerinin Karşılaştırılması

Keban Baraj Gölü ülkemizin en büyük ikinci baraj gölüdür. Bunun yanı sıra gerek su ürünleri potansiyeli gerekse elektrik üretimi açısından ülkemizin en önemli baraj göllerinden biri olma özelliğine de sahiptir. Bu çalışmada, Keban Baraj Gölü Örencik mevkiinden yakalanan Capoeta trutta balık örnekleri kullanılmıştır. Bazı ağır metallerin (bakır, demir, çinko, krom, nikel, kadmiyum, arsenic ve civa) Capoeta trutta’nın kas dokusundaki konsantrasyonları ile bu balığın insanlar tarafından tüketilmesi durumunda sağlık riski oluşturup oluşturmadığı araştırılmıştır. Ayrıca, ağır metal birikimi ile balığın bazı biyolojik özellikleri (ağırlık, uzunluk, cinsiyet) arasındaki ilişki de belirlenmiştir. Çalışma sonucunda Capoeta trutta’nın kas dokusunda en fazla birkim gösteren ağır metalin çinko, en az birikim gösteren ağır metalin ise kadmiyum olduğu tespit edilmiştir. Capoeta trutta’nın kas dokusundaki ağır metal konsantrasyonlarının balığın ağırlığına, uzunluğuna ve cinsiyetine bağlı olarak değişiklik gösterdiği bulunmuştur. Capoeta trutta’nın kas dokusundaki ağır metal düzeylerinin EPA, WHO ve FAO tarafından önerilen değerlerin altında olduğu, dolayısıyla bu balığın insanlar tarafından tüketilmesi durumunda sağlık riski oluşturmayacağı tespit edilmiştir.

Comparison of Some Heavy Metal Levels in the Muscle Tissue of Capoeta trutta Captured from Örencik Region of Keban Dam Lake (Elazığ)

Keban Dam Lake is the second largest dam lake in Turkey. In addition, it has the feature of being one of the most important dam lakes in our country in terms of both aquaculture potential and electricity generation. In this study, fish samples belong to Capoeta trutta caught from Örencik region of Keban Dam Lake were used. The concentrations of some heavy metals (copper, iron, zinc, chromium, nickel, cadmium, arsenic and mercury) in muscle of Capoeta trutta and the potential health risk from consumption of this fish species were examined. In addidion, the relationship between the heavy metal levels and some biological aspects of fish (weight, length and sex) were determined. As a result of the study, it was determined that the most and the least accumulated heavy metals in the muscle tissue of Capoeta trutta were zinc and cadmium respectively. The concentration of heavy metals showed differences according to weight, length and sex of fish. The results were found indicated that heavy metal levels in the muscle tissue of Capoeta trutta are below the tolerable values recommended by EPA, WHO and FAO. Therefore, there is not any risk for human consumption of this fish species.

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