Seasonal Changes of Oxidative Stress Biomarkers in White Muscle of Longfin Gurnard (Chelidonychthys obscurus) from the Adriatic Sea

Abstract

The aim of this study was to investigate the activity of oxidative stress biomarkers (total superoxide dismutase- Tot SOD, manganese containing superoxide dismutase-Mn SOD, copper zinc containing superoxide dismutase-CuZn SOD, catalase-CAT, glutathione peroxidase-GSH-Px and glutathione reductase-GR), as well as biotransformation phase II enzyme glutathione-S-transferase (GST) in the white muscle of longfin gurnard (Chelidonychthys obscurus) at two localities: Platamuni (PL) and the Estuary of the River Bojana (EB) in the south-eastern Adriatic Sea (Montenegro) in winter and spring seasons. Our study represents the first investigation of this kind in the white muscle of longfin gurnard from the south-eastern Adriatic Sea and shows site specific differences between some investigated enzymes, with seasonal effects being the main influencing factor on investigated enzymes at both localities PL and EB.