Comparative Study of Glutathione-s-transferase Activity in Tissues of Some Black Sea Teleosts

The activity of glutathione-S-transferase (GST) in blood cells, liver, spleen and gonads in five Black Sea fish species horse mackerel Trachurus mediterraneus (Staindachner), high body pickarel Spicara flexuosa (Rafinesque), shore rockling Gaidropsarus mediterraneus (L.), round goby Neogobius melanostomus (Pallas), scorpion fish Scorpaena porcus (L.) caught in coastal area of Sevastopol (Black Sea, Ukraine) was studied. All the examined tissues had GST activity. The high enzyme activity was shown in spleen and in the liver. The interspecies differences of GST activity associated with the specific fish biology and ecology were demonstrated. The different ways of physiological adaptation for effective xenobiotics biotransformation and detoxification in fish tissues are discussed.