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Fatty acid profiles in different fish species in Lake Baikal

2011; Inter-Research; Volume: 13; Issue: 1 Linguagem: Inglês

10.3354/ab00355

2195-2744

Otto Grahl‐Nielsen, Elena B. Averina, N. M. Pronin, Л. Д. Раднаева, Reijo Käkelä,

Aquaculture Nutrition and Growth

AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections AB 13:1-10 (2011) - DOI: https://doi.org/10.3354/ab00355 FEATURE ARTICLE Fatty acid profiles in different fish species in Lake Baikal O. Grahl-Nielsen1,*, E. Averina2, N. Pronin3, L. Radnaeva2,4, R. Käkelä5 1Department of Chemistry, University of Bergen, 5007 Bergen, Norway 2Baikal Institute of Natural Management SB RAS, 630033 Ulan-Ude, Russia 3Institute of General and Experimental Biology SB RAS, 630033 Ulan-Ude, Russia 4Buryat State University, 630000 Ulan-Ude, Russia 5Department of Biosciences, University of Helsinki, PO Box 65, 00014 Helsinki, Finland *Email: otto.grahl-nielsen@kj.uib.no ABSTRACT: The fatty acid (FA) composition in the heart tissue and white muscle of 13 species/ecoforms of Lake Baikal fish was determined. All the FAs usually found in freshwater or marine fish were detected in both tissues of all species studied. White muscle contained lower levels of saturated and monounsaturatedÊFAs (SAFAs and MUFAs), and higher levels of poly­unsaturated FAs (PUFAs) than heart tissue. The n3/n6 PUFA ratio ranged between 1.3 and 3.2 in heart tissue and 1.4 and 6.6 in white muscle, typical for freshwater fish. The most prominent n3 PUFAs, 20:5n3 and 22:6n3, occurred at levels comparable to those found in corresponding species in other freshwater lakes and rivers and also in marine fish. The FA compositions were species specific, following the taxonomic distinction between the species. Apparently, dietary FAs are modified significantly through the metabolism of the fish to produce the species-specific FA composition necessary for the structural lipids of heart tissue and white muscle. KEY WORDS: Heart · White muscle · Thirteen species/ecoforms · Fatty acid composition · Taxonomy Full text in pdf format Information about this Feature Article Supplementary material NextCite this article as: Grahl-Nielsen O, Averina E, Pronin N, Radnaeva L, Käkelä R (2011) Fatty acid profiles in different fish species in Lake Baikal. Aquat Biol 13:1-10. https://doi.org/10.3354/ab00355 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AB Vol. 13, No. 1. Online publication date: June 30, 2011 Print ISSN: 1864-7782; Online ISSN: 1864-7790 Copyright © 2011 Inter-Research.