title: Age-Specific Lipid and Fatty Acid Profiles of Atlantic Salmon Juveniles in the Varzuga River.
abstract: The age-specific lipid and fatty acid profiles of juvenile Atlantic salmon at different ages (0+, 1+, and 2+ years) after hatching from nests located in the mainstream of a large Arctic River, the Varzuga River, and resettling to the favorable Sobachji shoal in autumn before overwinter are herein presented. The contemporary methods of the lipid analysis were used: thin layer chromatography and gas chromatography. The results show that the stability of the regulation of important functions in developing organisms is maintained through structural alterations in lipids. These alterations can be considered as a sequence of the modifications and changes in the ratios of certain lipid classes and fatty acids constituents. In general, changes in the lipids and fatty acids (FAs) maintained the physiological limits and controls through the adaptive systems of the organism. The mechanisms of juvenile fish biochemical adaptation to the environmental conditions in the studied biotope include the modification of the energy metabolism and anabolism, and here belongs to the energy characteristics of metabolic processes.
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. murzina.svetlana@gmail.com.
authors.forename: Svetlana A
authors.initials: SA
authors.lastname: Murzina
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. znefed@krc.karelia.ru.
authors.forename: Zinaida A
authors.initials: ZA
authors.lastname: Nefedova
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. pek-svetlana@mail.ru.
authors.forename: Svetlana N
authors.initials: SN
authors.lastname: Pekkoeva
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. veselov@krc.karelia.ru.
authors.forename: Alexey E
authors.initials: AE
authors.lastname: Veselov
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. denisefremov@list.ru.
authors.forename: Denis A
authors.initials: DA
authors.lastname: Efremov
authors.affiliation: Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences, Petrozavodsk 185910, Russia. nemova@krc.karelia.ru.
authors.forename: Nina N
authors.initials: NN
authors.lastname: Nemova
mesh_terms: D000818:Animals; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D005227:Fatty Acids / Q000032:analysis*; D008055:Lipids / Q000032:analysis*; D045483:Rivers; D020317:Salmo salar / Q000254:growth & development / Q000378:metabolism*
chemical_list: D005227:Fatty Acids; D008055:Lipids
keywords: Arctic Rivers; Atlantic salmon; fatty acids; lipids; ontogenesis; the Varzuga River