Ecological role of lipids and fatty acids in the early postembryonic development of the daubed shanny, Leptoclinus maculatus (Fries, 1838) from Kongsfjorden, West Spitsbergen in winter

Ecological role of lipids and fatty acids in the early postembryonic development of the daubed... The dynamics of lipid and fatty acid composition of the muscles (flesh) and lipid sac in L. maculatus early life stages of different age collected in Kongsfjorden (Svalbard, Norway), in winter, during the polar night was studied. We showed that the total lipid content in the muscles increases on account of energetic triacylglycerols derived from the lipid sac, which is resorbed in juveniles as they switch to a demersal mode of life. The fatty acid spectrum directly reflects age-dependent and seasonal features of L. maculatus early life stages. The results of the study elucidate the specific role of lipids and fatty acids in the ecological and biochemical mechanisms related to ontogenic development of fish from the family Stichaeidae, particularly arctic-boreal L. maculatus, which assumed to become increasingly frequent in the Spitsbergen water area. They are important for understanding the ability of organisms to maintain and preserve the functional stability of ecosystems as a whole, especially under conditions of climate change in the Arctic. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Ecological role of lipids and fatty acids in the early postembryonic development of the daubed shanny, Leptoclinus maculatus (Fries, 1838) from Kongsfjorden, West Spitsbergen in winter

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413617030134
Publisher site
See Article on Publisher Site

Abstract

The dynamics of lipid and fatty acid composition of the muscles (flesh) and lipid sac in L. maculatus early life stages of different age collected in Kongsfjorden (Svalbard, Norway), in winter, during the polar night was studied. We showed that the total lipid content in the muscles increases on account of energetic triacylglycerols derived from the lipid sac, which is resorbed in juveniles as they switch to a demersal mode of life. The fatty acid spectrum directly reflects age-dependent and seasonal features of L. maculatus early life stages. The results of the study elucidate the specific role of lipids and fatty acids in the ecological and biochemical mechanisms related to ontogenic development of fish from the family Stichaeidae, particularly arctic-boreal L. maculatus, which assumed to become increasingly frequent in the Spitsbergen water area. They are important for understanding the ability of organisms to maintain and preserve the functional stability of ecosystems as a whole, especially under conditions of climate change in the Arctic.

Journal

Russian Journal of EcologySpringer Journals

Published: May 24, 2017

References

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