FATTY ACIDS IN THE BLUBBER OF THE MEDITERRANEAN MONK SEAL, MONACHUS MONACHUS (HERMANN, 1779)

Fatty acids in the blubber of the Mediterranean monk seal, Monachus monachus (Hermann, 1779)

Zeliha Yazıcı, Bayram Öztürk

Cerrahpaşa Faculty of Medicine,  University of Istanbul, Istanbul, TURKEY
Faculty of Fisheries, University of Istanbul, Istanbul, TURKEY

Abstract

In this study Mediterranean monk seal, Monachus monachus oil has been examined for the first time, using capillary gas chromatography twenty-two fatty acids(FAs) were identified from monk seal oiI. Oleic ( 18: 1n-9, 24.7 %), palmitoleic (16: 1n-7, 23 %), palmitic ( 16:0, 20.8 %), miristic (14:0, 6.2 %), cis-vacsenic (18: 1n-7, 5.7 %), docosahexaenoic (22: 6n-3, 4.7 %) and erusic (22: 1 n-7, 3.1 %),eicosapentaenoic (20:5n-3, 1.3 % ) and docosapentaenoic ( 22: 5n-3. 1.2 %) acids were prominent. Combained amount of the unsaturated FAs were 133% higher then saturated. The blubber oil of the Mediterranean monk seal contained considerably less 20: 5n-3, and 22: 6n-3 than the blubbers of ringed seals (Phoca hispida) from the Baltık Sea, Spitsbergen, Lake Ladoga and Lake Saimaa. The differences among the FAs in these species could be due to different dietary factors and species.

Keywords: Fatty acids, monk seal blubber, Monachus monachus