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Comparison of Heavy Metal Levels of Grey Mullet (Mugil cephalus L.) and Sea Bream (Sparus aurata L.) Caught in İskenderun Bay (Turkey)

2005; Scientific and Technological Research Council of Turkey (TUBITAK); Volume: 29; Issue: 2 Linguagem: Inglês

1303-6181

Ayfle Bahar Yilmaz,

Heavy metals in environment

In this study Fe, Cu, Ni, Cr, Pb and Zn contents were determined in muscle, skin and gonads of two fish species (Mugil cephalus L. and Sparus aurata L.) caught at three stations in the ‹skenderun Bay of the Eastern Mediterranean coast of Turkey. Heavy metal concentrations varied significantly depending on the type of the tissue, fish species, and location of stations. Generally, M. cephalus showed higher levels of metal concentrations than S. aurata in two of the stations in the inner bay; which might have resulted from the difference in foraging habits of the two species. Cu, Zn, Fe, Pb, Ni and Cr concentrations were found to be the highest in M. cephalus with 1.39, 47.25, 66.38, 10.02, 1.34 and 1.71 µg g -1 w. wt. in muscle, and 44.50, 269.06, 332.56, 90.97, 9.17 and 8.68 µg g -1 w. wt. in gonads, respectively. The least amount of contamination was found to be at the station in the opening of the bay. This station does not receive significant levels of effluents from the industrial and domestic sources in ‹skenderun city when compared to the other two stations. ‹skenderun Korfezi'nden Avlanan Has Kefal (Mugil cephalus L.) ve Cipura (Sparus aurata L.)'da A¤›r Metal Duzeylerinin Karfl›laflt›r›lmas› Ozet: Bu cal›flmada; Turkiye'nin Dou Akdeniz k›y›s›nda yer alan, ‹skenderun Korfezi'nde uc istasyonda avlanan has kefal (Mugil cephalus) ve cipura'n›n (Sparus aurata) ureme organlar›, deri ve kas dokular›nda Fe, Cu, Ni, Cr, Pb ve Zn duzeyleri belirlenmifltir. A¤›r metal duzeylerinin, istasyonlara, bal›k turlerine ve doku tiplerine gore deiflim gosterdii saptanm›flt›r. Genelde has kefal'deki (M. cephalus) metal birikimlerinin cipura'dan (Sparus aurata) daha yuksek olduu ve bu durumun turlerin beslenme al›flkanl›klar›n›n farkl›l›¤›ndan kaynaklanabilecei soylenebilir. Has kefal'in kas›nda en yuksek Cu, Zn, Fe, Pb, Ni ve Cr duzeyleri s›ras›yla 1,39, 47,25, 66,38, 10,02, 1,34 ve 1,71 µg/g yafl a¤›rl›k ve gonad›nda 44,50, 269,06, 332,56, 90,97, 9,17 ve 8,68 µg/g yafl a¤›rl›k olarak bulunmufltur. Korfez icindeki dier iki istasyonla karfl›laflt›r›ld›¤›nda, Iskenderun'un evsel ve endustriyel at›klar›n›n en az etkisinde kalan korfez az›ndaki istasyonun, korfezin en az kirlenmifl bolgesi olduu belirlenmifltir.