Tilapia nilotica L 1758 nin Solungac ve Karaciger Dokularindaki Mangan Demir ve Cinko Duzeyleri Uzerine Bakirin Etkisi
Kalay Mustafa | Dönmez Ahmet Erdem | Koyuncu Cafer Erkin
Tilapia nilotica (L., 1758) 7 ve 14 günlük sürelerle 2,0 ve 4,0 ppm bakır ortam derişimlerinde tutularak, batarın karaciğer ve solungaç dokularındaki mangan, demir ve çinko elementleri düzeyine etkisi belirlenmiştir. Yaş yakma yöntemi ile analize hazırlanan doku örneklerinin element düzeyleri, atomik absorpsiyon spektrofotometresi yardımıyla kuru ağırlık olarak hesaplanmıştır. Batar, solungaç dokusuna göre karaciğer dokusu element düzeyini daha fazla etkilemiştir. Ancak solungaç dokusu demir düzeyi 14. günde 4 ppm ortam derişiminde, çinko düzeyi ise 7. günde aynı ortam derişiminde istatistik ayrım gösterecek şekilde değişmiştir. Genel anlamda batar karaciğer dokusundaki mangan, demir ve çinko elementleri düzeyinde artışa neden olmuştur.
Effects of Medium Concentration and Exposure Period on the Mercury Accumulation in Tissues of Cyrinus carpio L 1758
Mustafa Kalay, Ahmet Erdem Dönmez, Cafer Erkin Koyuncu
Mercury accumulation in different tissues of Cyprinus carpio was measured after exposing the fish to 25 and 50 ppb mercury for 15 and 30 days. At the end of experiments, gill, liver, spleen and brain tissues of fish were dissected separately. Dissected tissue samples were prepared with wet digestion for mercury analysis. Mercury concentration of samples was determined by cold vapor atomic absorption spectrophotometry. For all the tissues analyzed, mercury accumulation level displayed an increase, depending on the medium mercury content and exposure period. When compared to the other tissues, a more evident increase was reported in the mercury level of spleen tissue, especially in the 50 ppb medium mercury content. Among all the tissues analyzed, mercury level in the liver tissue is the l...
Effects of medium concentration and exposure period on the mercury accumulation in tissues of Cyprinus carpio (L.1758)
Mustafa Kalay, Ahmet Erdem Dönmez, Cafer Erkin Koyuncu
Mercury accumulation in different tissues of Cyprinus carpio was measured after exposing the fish to 25 and 50 ppb mercury for 15 and 30 days. At the end of experiments, gill, liver, spleen and brain tissues of fish were dissected separately. Dissected tissue samples were prepared with wet digestion for mercury analysis. Mercury concentration of samples was determined by cold vapor atomic absorption spectrophotometry. For all the tissues analyzed, mercury accumulation level displayed an increase, depending on the medium mercury content and exposure period. When compared to the other tissues, a more evident increase was reported in the mercury level of spleen tissue, especially in the 50 ppb medium mercury content. Among all the tissues analyzed, mercury level in the liver tissue is the low...