Fatty acid composition in liver and blubber of the Saimaa ringed seal (Phoca hispida saimensis) compared with that of the ringed seal (Phoca hispida botnica) and grey seal (Halichoerus grypus from the Baltic.
1. The main differences in fatty acid composition of blubber between the Saimaa seal (Phoca hispida saimensis) and the Baltic seals (Phoca hispida botnica and Halichoerus grypus) were, that in fresh water the proportions of polyunsaturated C18 acids and arachidonic acid (20:4 omega 6) were high. 2. The trend became more evident when data on ringed seals from northern oceans were compared with the present data. 3. The proportions of exogenous 20:1 and 22:1 were extremely low in ringed seals from Lake Saimaa and in Baltic seals compared with seals living in oceans.
Käkelä
R
R
Department of Biology, University of Joensuu, Finland.
Hyvärinen
H
H
Vainiotalo
P
P
D000273:Adipose Tissue / Q000737:chemistry*; D000818:Animals; D016718:Arachidonic Acid / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis*; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D005618:Fresh Water; D008099:Liver / Q000737:chemistry*; D046048:Seals, Earless; D012623:Seawater; D013045:Species Specificity
D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated; D016718:Arachidonic Acid