We investigated the activities of superoxide dismutase (SOD), catalase (CAT),
glutathione peroxidase (GSH-Px), glutathione reductase (GR) and the phase II
biotransformation enzyme glutathione S-transferase (GST) in the whole body
of fire salamander larvae (Salamandra salamandra) from two localities on Mt.
Avala (AVS and ABP) and one locality on Mt. Vrsacki Breg (VSB), Serbia. We
also determined the total glutathione (GSH) and sulfhydryl group (SH)
contents, as well as the concentrations of manganese (Mn), copper (Cu), zinc
(Zn), selenium (Se), arsenic (As), cadmium (Cd), lead (Pb) and uranium (U).
The obtained results show that animals from VSB had significantly lower
weights and lengths than animals from AVS and ABP. The activities of all
investigated enzymes were significantly higher, while the SH content was
significantly lower in animals from VSB compared to those from AVS and ABP.
No correlations between trace-element concentrations in water and animal
tissue were observed. We concluded that the obtained results were more
likely a consequence of the combination of developmental differences and the
effects of different habitat conditions, environmental and anthropogenic
influences than of concentrations of trace elements in the water alone.
[Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 451-03-68/2020-14/200007]