Lipids in Fish
A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Biology".
Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 7480
Special Issue Editor
2. Siberian Federal University, Russia
Interests: fatty acids; food webs; trophic transfer; fish; aquatic invertebrates; fatty acid metabolism; lipid biochemistry; biomarker fatty acids
Special Issue Information
Dear Colleagues,
Fish are considered as the most important source of long-chain polyunsaturated fatty acids of the omega-3 family (omega-3 LC-PUFA) in the human diet. These substances provide the normal functioning of the cardiovascular and neural systems, immunity and metabolism in general. The content of omega-3 LC-PUFAs in fish depends on a number of factors and, as a result, varies widely. The needs of the different fishes in LC-PUFA are not the same. Some species efficiently synthesize eicosapentaenoic (20:5n-3, EPA) and docosahexaenoic (22:6n-3, DHA) acids from their precursors, while others obtain these PUFAs mainly from food. Anyway, omega-3 LC-PUFAs play an important role in the metabolism of all fish species. Very often omega-6 LC-PUFAs, which are no less important in the metabolism of some fish, are unfairly ignored. A shortage of EPA, DHA and arachidonic (20:4n-6, ARA) acids in fish food leads to the appearance of various pathologies in fish: myocarditis, obesity of the liver and intestines, fin erosion, gill bleeding, curvature of the spine, decreased reproductive potential, etc. At the population level, there is a decrease in growth rate and an increase in fish mortality. Species-specific features of lipid metabolism in fish, e.g., lipid synthesis in different tissues, intestinal lipid absorption and their assimilation, oxylipins synthesis and their role, the relationship of fish lipid composition with their life strategy, etc., are of particular interest. Additionally, the composition of fish lipids contains information about their diet, which helps to determine positions of fish species in trophic webs of natural ecosystems. Evaluation of lipid metabolism in fish allows more efficient and sustainable exploitation of wild fish resources as well as aquaculture development.
Dr. Olesia N. Makhutova
Guest Editor
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Keywords
- fatty acid metabolism
- enzymes
- lipid absorption
- lipid assimilation
- lipid content and composition
- fish diseases
- fish diet
- aquaculture
- trophic transfer
- food webs
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