Abstract
The fatty acids of 3 samples of Euphausia superba, 7 samples of E. crystallorophias, and 12 samples of phytoplankton collected in the Ross Sea, Antarctica, during Eltanin Cruise 51 were examined. The fatty acid profiles of the samples of E. superba resembled each other closely. The fatty acid profiles of the E. crystallorophias samples were also similar to each other but different quantitatively from those of E. superba. Phytoplankton fatty acid patterns varied with the geographical location and species composition of the samples. The fatty acids of euphausiids were compared to those of the phytoplankton from the corresponding locations. Rather similar fatty acid patterns in phytoplankton and E. superba corroborate the herbivorous nature of this euphausiid. On the other hand, phytoplankton and E. crystallorophias showed quite different fatty acid patterns. The differences were mostly due to the presence of waxes among the lipids of E. crystallorophias. It is not clear whether these waxes are of dietary origin or are synthesized endogenously.
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Bottino, N.R. The fatty acids of antarctic phytoplankton and euphausiids. Fatty acid exchange among trophic levels of the Ross Sea. Marine Biology 27, 197–204 (1974). https://doi.org/10.1007/BF00391944
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DOI: https://doi.org/10.1007/BF00391944