LIPID AND FATTY-ACID COMPOSITION OF INTESTINAL-MUCOSA OF 2 ANTARCTIC TELEOSTS

The fatty acid composition oi intestinal mucosa oi two Antarctic teleo sts, Chionodraco hamatus and Trematomus bernacchii, was investigated i n comparison with two temperate water species: Anguilia anguilla and D icentrarchus labrax. Higher amounts oi unsaturated and monounsaturated fatty acids were present in the Antarctic species, while the polyunsa turated fatty acid levels were not significantly different in all fish species. A higher content oi phosphatidylethanolamine (a phospholipid rich in unsaturated fatty acids and with a relatively low melting poi nt) and a lower content oi sphingomyelin (a phospholipid rich in satur ated fatty acids and with relatively high melting point) were observed in T. bernacchii in comparison with A. anguilla. Copyright (C) 1996 E lsevier Science Inc.