{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T15:03:59Z","timestamp":1775487839580,"version":"3.50.1"},"reference-count":76,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,2,28]],"date-time":"2020-02-28T00:00:00Z","timestamp":1582848000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"RCN","award":["SpitsEco"],"award-info":[{"award-number":["SpitsEco"]}]},{"name":"RCN","award":["Arctic ABC"],"award-info":[{"award-number":["Arctic ABC"]}]},{"name":"the State budgetary theme","award":["0218-2019-0076"],"award-info":[{"award-number":["0218-2019-0076"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>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\u2019s 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).<\/jats:p>","DOI":"10.3390\/biom10030368","type":"journal-article","created":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T07:35:30Z","timestamp":1583134530000},"page":"368","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["Tiny but Fatty: Lipids and Fatty Acids in the Daubed Shanny (Leptoclinus maculatus), a Small Fish in Svalbard Waters"],"prefix":"10.3390","volume":"10","author":[{"given":"Svetlana A.","family":"Murzina","sequence":"first","affiliation":[{"name":"Environmental biochemistry lab, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya st., 11, 185910 Petrozavodsk, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8706-731X","authenticated-orcid":false,"given":"Svetlana N.","family":"Pekkoeva","sequence":"additional","affiliation":[{"name":"Environmental biochemistry lab, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya st., 11, 185910 Petrozavodsk, Russia"}]},{"given":"Ekaterina A.","family":"Kondakova","sequence":"additional","affiliation":[{"name":"Biological faculty of the St. Petersburg State University, University Embankment 7\/9, 199034 St. Petersburg, Russia"},{"name":"Federal State Scientific Establishment \u201cBerg State Research Institute on Lake and River Fisheries\u201d (GosNIORH), St. Petersburg branch of VNIRO, Russian Federal Research Institute of Fisheries and Oceanography, Makarova Embankment 26, 199053 St. Petersburg, Russia"}]},{"given":"Zinaida A.","family":"Nefedova","sequence":"additional","affiliation":[{"name":"Environmental biochemistry lab, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya st., 11, 185910 Petrozavodsk, Russia"}]},{"given":"Kseniia A.","family":"Filippova","sequence":"additional","affiliation":[{"name":"Environmental biochemistry lab, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya st., 11, 185910 Petrozavodsk, Russia"}]},{"given":"Nina N.","family":"Nemova","sequence":"additional","affiliation":[{"name":"Environmental biochemistry lab, Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences, Pushkinskaya st., 11, 185910 Petrozavodsk, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0877-2553","authenticated-orcid":false,"given":"Alexei M.","family":"Orlov","sequence":"additional","affiliation":[{"name":"Russian Federal Research Institute of Fisheries and Oceanography, Verhnyaya Krasnosel\u2019skaya, 17, 107140 Moscow, Russia"},{"name":"A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 33, Leninsky Prospekt, 119071 Moscow, Russia"},{"name":"Department of ichthyology and hydrobiology, Biological Institute, Tomsk State University, 36, Lenina St., 634050 Tomsk, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0900-5679","authenticated-orcid":false,"given":"Jorgen","family":"Berge","sequence":"additional","affiliation":[{"name":"Faculty of Biosciences, Fisheries and Economics, University of Troms\u00f8, N-9037 Troms\u00f8, Norway"}]},{"given":"Stig","family":"Falk-Petersen","sequence":"additional","affiliation":[{"name":"Akvaplan-niva, Fram Centre, Hjalmar Johansensgt. 14, NO-9296 Troms\u00f8, Norway"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,28]]},"reference":[{"key":"ref_1","unstructured":"Kreps, E.M. (1981). 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