Abstract
Abstract The fatty acid composition of intestinal mucosa of two Antarctic teleosts, Chionodraco hamatus and Trematomus bernacchii , was investigated in comparison with two temperate water species: Anguilla anguilla and Dicentrarchus labrax . Higher amounts of unsaturated and monounsaturated fatty acids were present in the Antarctic species, while the polyunsaturated fatty acid levels were not significantly different in all fish species. A higher content of phosphatidylethanolamine (a phospholipid rich in unsaturated fatty acids and with a relatively low melting point) and a lower content of sphingomyelin (a phospholipid rich in saturated fatty acids and with relatively high melting point) were observed in T. bernacchii in comparison with A. anguilla .
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