Abstract
The lipid class composition and the fatty acid composition of total lipids of the cysts, newly hatched nauplii and 24-h-old metanauplii of a Spanish parthenogenetic diploid strain ofArtemia sp. were studied. Substantial differences in the total lipid level occurred among these stages, with a marked increase from the cyst to the nauplii being followed by a decrease in the metanaupliar stages. This variation affected the absolute levels (mg/g dry wt) of the total lipid classes and individual fatty acids, although the percent composition of the fatty acids in total lipid was essentially unchanged. An exception occurred during hatching in that the percentages of 16:0 and 16:1n-7 in total lipid decreased whereas that of 20: 5n-3 increased. The lipid classes showed higher variation than the fatty acids both in absolute and in relative terms, and in particular, the ratio of phosphatidylcholine:phosphatidylethanolamine decreased progressively from cysts to nauplii and metanauplii. The implications of these findings for the use ofArtemia sp. as a larval feed in aquaculture are considered.
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Communicated by J. Mauchline, Oban
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Navarro, J.C., Amat, F. & Sargent, J.R. A study of the variations in lipid levels, lipid class composition and fatty acid composition in the first stages ofArtemia sp.. Mar. Biol. 111, 461–465 (1991). https://doi.org/10.1007/BF01319419
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DOI: https://doi.org/10.1007/BF01319419