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Keywords = the Varzuga River

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12 pages, 565 KB  
Article
Lipids and Fatty Acids of the White Sea Herring Clupea pallasi marisalbi Berg (Clupeiformes, Clupeidae) from Different Habitats of the White Sea
by Svetlana A. Murzina, Zinaida A. Nefedova, Svetlana N. Pekkoeva, Tatiana R. Ruokolainen, Pauli O. Ripatti, Andrey V. Semushin and Nina N. Nemova
Fishes 2016, 1(1), 65-76; https://doi.org/10.3390/fishes1010065 - 13 Oct 2016
Cited by 3 | Viewed by 4497
Abstract
Habitation conditions significantly affect the physiological and biochemical state of aquatic organisms, including the balance of lipids that performs important functions in cellular metabolism. The lipid and fatty acid profiles of White Sea herring in Dvina, Kandalaksha, and Onega bays, and in the [...] Read more.
Habitation conditions significantly affect the physiological and biochemical state of aquatic organisms, including the balance of lipids that performs important functions in cellular metabolism. The lipid and fatty acid profiles of White Sea herring in Dvina, Kandalaksha, and Onega bays, and in the waters of Tersky Shore (the mouth of the Varzuga River) in autumn (after the fattening period) were studied. Different methods—thin-layer, high-performance liquid and gas chromatography—were used for this purpose. Determined heterogeneity on studied parameters of lipid metabolism of fish from different habitats is associated with differences in trophic and hydrological conditions in these bays. Variations of lipid compositions of herring groups can be a reflection of qualitative and quantitative strategies of biochemical adaptations, aimed at compensating the lipid metabolism of fish under different trophic–ecological conditions of habitation in the White Sea. Full article
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10 pages, 209 KB  
Article
Age-Specific Lipid and Fatty Acid Profiles of Atlantic Salmon Juveniles in the Varzuga River
by Svetlana A. Murzina, Zinaida A. Nefedova, Svetlana N. Pekkoeva, Alexey E. Veselov, Denis A. Efremov and Nina N. Nemova
Int. J. Mol. Sci. 2016, 17(7), 1050; https://doi.org/10.3390/ijms17071050 - 30 Jun 2016
Cited by 11 | Viewed by 4878
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Fish Molecular Biology)
11 pages, 1015 KB  
Article
Features in the Lipid Status of Two Generations of Fingerlings (0+) of Atlantic Salmon (Salmo salar L.) Inhabiting the Arenga River (Kola Peninsula)
by Nina N. Nemova, Svetlana A. Murzina, Zinaida A. Nefedova and Alexey E. Veselov
Int. J. Mol. Sci. 2015, 16(8), 17535-17545; https://doi.org/10.3390/ijms160817535 - 30 Jul 2015
Cited by 4 | Viewed by 4135
Abstract
The present research focused on determining the lipid status of salmon fingerlings (0+) in early development after dispersal form groups of spawning nests in biotopes of different hydrological conditions. The revealed qualitative and quantitative differences in the levels of phospholipids and fatty acids [...] Read more.
The present research focused on determining the lipid status of salmon fingerlings (0+) in early development after dispersal form groups of spawning nests in biotopes of different hydrological conditions. The revealed qualitative and quantitative differences in the levels of phospholipids and fatty acids among two generations of Atlantic salmon fingerlings (0+) living in different biotopes of the Arenga River (a tributary of the Varzuga River) may be associated with the peculiarities of their genetically determined processes of the biosynthesis and modification of individual lipid classes and trophoecological factors (food spectrum, quality and availability of food objects, and hydrological regime). The research was organized to observe the dynamics of these developmental changes from ages 0+ to 2+. Full article
(This article belongs to the Section Biochemistry)
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