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Tiny but fatty: Lipids and fatty acids in the daubed shanny (Leptoclinus maculatus), a small fish in Svalbard waters

Permanent link
https://hdl.handle.net/10037/18571
DOI
https://doi.org/10.3390/biom10030368
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Date
2020-02-28
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Murzina, Svetlana; Pekkoeva, Svetlana N.; Kondakova, Ekaterina A.; Nefedova, Zinaida A.; Filippova, Kseniia A.; Nemova, Nina N.; Orlov, Alexei M.; Berge, Jørgen; Falk-Petersen, Stig
Abstract
The seasonal dynamic of lipids and their fatty acid constituents in the lipid sac and muscles of pelagic postlarval Leptoclinus maculatus, an ecologically important fish species in the Arctic food nets, in Kongsfjord, Svalbard waters was studied. The determination of the qualitative and quantitative content of the total lipids (TLs), total phospholipids (PLs), triacylglycerols (TAGs), cholesterol (Chol), cholesterol esters (Chol esters) and wax esters was analyzed by TLC, the phosphatidylserine (PS), phosphatidylethanolamine (PE), phosphatidylinositol (PI), phosphatidylcholine (PC), lysophosphatidylcholine (LPC) and sphingomyelin (SM) were determined by HPLC, and fatty acids of total lipids using GC. The lipid sac is a system of cavities filled with lipids, and it is not directly connected to organs of the digestive system. The wall’s inner layer is a multinuclear symplast that has a trophic function. The results provide additional knowledge on the role of lipids in the biochemical and physiological adaptation of fish to specific environments and clarify the relationship between fatty acids and the food specialization of postlarvae. Analysis of the fatty acid (FA) profile of TLs in the muscles and lipid sac of daubed shanny pelagic postlarvae showed it to be tissue- and organ-specific, and tightly associated with seasonal variations of environmental factors (temperature conditions and trophic resources).
Publisher
MDPI
Citation
Murzina S, Pekkoeva SN, Kondakova, Nefedova ZA, Filippova, Nemova NN, Orlov AM, Berge J, Falk-Petersen S. Tiny but fatty: Lipids and fatty acids in the daubed shanny (Leptoclinus maculatus), a small fish in Svalbard waters. Biomolecules. 2020;10:368(3):1-24
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