Very long chain polyunsaturated fatty acids in the blubber of ringed seals ( Phoca hispidasp.) from Lake Saimaa, Lake Ladoga, the Baltic Sea, and Spitsbergen

Abstract Blubbers of four ringed seal subspecies from Lake Saimaa, Lake Ladoga, the Baltic Sea, and Spitsbergen were analyzed for very long chain polyunsaturated fatty acids (VLCPUFA; >C 22 ) using gas‐liquid chromatography and gas chromatography/mass spectrometry. The VLCPUFA of the blubber oils...

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Bibliographic Details
Published in:Lipids
Main Authors: Käkelä, Reijo, Ackman, Robert G., Hyvärinen, Heikki
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1995
Subjects:
ringed seal
Spitsbergen
Online Access:http://dx.doi.org/10.1007/bf02537799
https://onlinelibrary.wiley.com/doi/full/10.1007/BF02537799
Description
Summary:Abstract Blubbers of four ringed seal subspecies from Lake Saimaa, Lake Ladoga, the Baltic Sea, and Spitsbergen were analyzed for very long chain polyunsaturated fatty acids (VLCPUFA; >C 22 ) using gas‐liquid chromatography and gas chromatography/mass spectrometry. The VLCPUFA of the blubber oils were mainly n−3 polyunsaturated fatty acids—23∶5n−3, 24∶3n−3, 24∶4n−3, 24∶5n−3, 24∶6n−3, 26∶5n−3, 26∶6n−3, and 28∶7n−3. The largest VLCPUFA components in all populations were 24∶5n−3 (0.1–0.2 wt% of total fatty acids) and 24∶6n−3 (0.1%), but 24∶4n−3 (0.1%) was also prominent in the Baltic specimens. The blubber oils of the freshwater species contained considerably more 24∶4n−6 and 24∶5n−6 than the blubbers of the marine species. The differences among the VLCPUFA in these subspecies appear to be mainly due to different dietary VLCPUFA.

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