Meta-analysis of factors associated with omega-3 fatty acid contents of wild fish : научное издание | Научно-инновационный портал СФУ

Meta-analysis of factors associated with omega-3 fatty acid contents of wild fish : научное издание

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1007/s11160-017-9511-0

Ключевые слова: Docosahexaenoic acid, Ecomorphological factors, Eicosapentaenoic acid, Nutritive value, Phylogenetic factors

Аннотация: Fish are recognized as the main source of physiologically important omega-3 long-chain polyunsaturated fatty acids, namely, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), for human nutrition. However, muscle tissue contents of these fatty acids in diverse fish species, i.e., their nutritive value for humans, varied within two orders of magnitude. We reviewed contents of EPA and DHA, measured by similar methods using an internal standard during chromatography as mg per g of wet mass in 172 fish species belonging to 16 orders, to evaluate probable variations in phylogenetic and ecological drivers. EPA + DHA content varied from 25.6 mg g(-1) of wet mass (Sardinops sagax) to 0.12 mg g(-1) (Gymnura spp.). Multidimensional redundancy analysis revealed that among phylogenetic, ecomorphological and abiotic environmental factors, the highest proportion of variation contribution belonged to the shared contribution of sets of phylogenetic and ecomorphological factors. Specifically, the highest values of EPA + DHA content were characteristic of fish belonging to the orders Clupeiformes or Salmoniformes, were pelagic fast swimmers, ate zooplankton and inhabited marine waters or migrated from fresh to marine waters (anadromous migrations). High EPA and DHA content in muscle tissues of the above species appeared to be a metabolic adaptation for fast continuous swimming. In contrast to common beliefs, our meta-analysis did not support the significant influence of higher trophic levels (piscivory) and cold environments (homeoviscous adaptation) on EPA and DHA content in fish. However, many causes of high and low levels of physiologically important fatty acids in certain fish species remained unexplained and require evaluation in future studies.

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Издание

Журнал: REVIEWS IN FISH BIOLOGY AND FISHERIES

Выпуск журнала: Vol. 28, Is. 2

Номера страниц: 277-299

ISSN журнала: 09603166

Место издания: DORDRECHT

Издатель: SPRINGER

Авторы

  • Gladyshev Michail I. (Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)
  • Sushchik Nadezhda N. (Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)
  • Tolomeev Alexander P. (Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia)
  • Dgebuadze Yury Yu (Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Leninsky Prospect 33, Moscow 119071, Russia; Lomonosov Moscow State Univ, Moscow 119899, Russia)

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