Journals / Journal of Aquaculture Engineering and Fisheries Research / 2017 / Cilt: 3 - Sayı: 3
HEAVY METAL CONCENTRATIONS IN FISH SPECIES CAPTURED IN MERSIN BAY
- Pages
- 141–150
- DOI
- —
Abstract
In this study we aimed to determine of heavy metal levels in gills, liver, kidney, spleen and muscle tissues of various fish species, Scomber japonicus, Caranx rhoncus, Pegusa lascaris, consumed as nutrients and sampled from Mersin Bay. These species of fish were chosen since they have high economic value and consumed as a protein source. Levels of Cd, Cr, Cu, Pb and Zn in the tissues were determined using atomic absorption techniques. Heavy metal concentrations in sampled fish changed with different tissues, metals, seasons and habitat. The highest accumulation rate of Zn was observed in spleen tissue whereas Cu were found to be accumulated highest in liver tissue samples. In addition it was observed that Cd was mainly accumulated in liver tissue whereas Pb was detected in gill tissue samples. Metal levels investigated in muscle tissue of the species are very low for human consumption, it has been determined that they are acceptable levels according to the Turkish Food Codex.
Özet
Bu araştırmada Mersin Körfezinden örneklenen, tüketime sunulan ve ekonomik öneme sahip Scomber japonicus, Caranx rhoncus, Pegusa lascaris türlerinin solungaç, karaciğer, böbrek, dalak ve kas dokularındaki Zn, Cu, Pb ve Cd düzeylerinin belirlenmesi amaçlanmıştır. Doku metal düzeylerinin belirlenmesinde Atomik Absorbsiyon Spektrofotometrik yöntem uygulanmıştır. İncelenen metal düzeyleri dokulara, metale, mevsime ve yaşam alanlarına bağlı olarak değişim göstermiştir. Zn için en yüksek düzey dalak, Cu ve Cd için karaciğer, Pb için ise Solungaç dokusunda olurken, en düşük birikimin kas dokusunda olduğu belirlenmiştir. Söz konusu türlerin kas dokusunda incelenen metal düzeyleri insan tüketimi için çok düşük olduğundan, Türk Gıda Kodeks'ine göre kabul edilebilir düzeylerde olduğu saptanmıştır.