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Fatty acids of the female horseshoe crabXiphosura (Limulus) polyphemus

✍ Scribed by D. J. Horst; R. C. H. M. Oudejans; A. G. Plug; I. Sluis


Publisher
Springer-Verlag
Year
1973
Tongue
English
Weight
533 KB
Volume
20
Category
Article
ISSN
0025-3162

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✦ Synopsis


The fatty acid composition of 9 different tissues and organs of the female horseshoe crab Xiphosura (Limulus) polyphemus -one of the very few recent representatives of the ancient arthropod class Merostomata --was investigated in reference to the distribution of fatty acids through the marine food web. Fatty acid spectra, in which polyunsaturated fatty acids are predominant, especially eicosapentaenoic acid (20:5 co3), revealed features characteristic of marine lipids. However, rather large quantities of monoenoic fatty acids also occur in all organs. In the saturated fatty acid fractions, the high content of branched-chain components is worth noticing, particularly in the gills and the carapace (35%); in all probability, the high amount of the branched-chain fatty acids is associated with their protective function in surface lipids. Isoprenoid fatty acids such as pristanie and phytanic acid were absent.


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