Manganese Concentrations in Tissues and Skin of Three Dolphin Species Stranded in the Croatian Waters of the Adriatic Sea from 1995 to 2013 |
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| Authors: | Maja ?oki? Nina Biland?i? Marija Sedak Martina ?uras Tomislav Gomer?i? Miroslav Beni? Tomislav Bolan?a |
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| Institution: | 1.Laboratory for Residue Control, Department of Veterinary Public Health,Croatian Veterinary Institute,Zagreb,Croatia;2.Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine,University of Zagreb,Zagreb,Croatia;3.Department of Biology, Faculty of Veterinary Medicine,University of Zagreb,Zagreb,Croatia;4.Laboratory for Mastitis and Raw Milk Quality, Department for Bacteriology and Parasitology,Zagreb,Croatia;5.Faculty of Chemical Engineering and Technology,University of Zagreb,Zagreb,Croatia |
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| Abstract: | Manganese concentrations were determined in muscle, kidney, liver, spleen, lung and fat tissues and skin of three cetacean species, the bottlenose (Tursiops truncatus), striped (Stenella coeruleoalba) and Risso’s (Grampus griseus) dolphins, stranded along the Croatian Adriatic coast between 1995 and 2013. Mean ranges determined in tissues were (mg/kg, ww): muscle 0.23–0.27, liver 2.87–4.00, kidney 0.66–1.26, spleen 0.37–0.79, lung 0.18–0.57, skin 0.11–0.97, fat 0.06–0.42. The highest Mn mean levels in tissues were measured in species (mg/kg, ww): T. truncates lung 0.41, skin 0.97, fat 0.42; S. coeruleoalba muscle 0.26; G. griseus kidney 1.26, liver 4.00, spleen 0.64. Significant differences of Mn concentrations in the liver (p?=?0.034), spleen (p?=?0.037) and skin (p?=?0.013) were found among the three dolphin species. Significant differences in Mn levels were found between young and adult T. truncates in kidney (p?=?0.042), lung (p?=?0.0040) and skin (p?=?0.0034). |
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