ArticleOecologia2016
Fractionation of the stable carbon isotope ratio of essential fatty acids in zebrafish Danio rerio and mud snails Bellamya chinensis.
Article in Oecologia, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 24 citations in OpenAlex.
- Exploring the use of fish as indicators of eicosapentaenoic and docosahexaenoic supply in lake ecosystems.Oecologia · 2023Article
- Compound-specific stable hydrogen isotope (δRapid communications in mass spectrometry : RCM · 2021Article
- The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters,Marine drugs · 2021Article
- Article
- The potential of fatty acid isotopes to trace trophic transfer in aquatic food-webs.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Origin of Carbon and Essential Fatty Acids in Higher Trophic Level Fish in Headwater Stream Food Webs.Biomolecules · 2019Article
- Transfer of cyanobacterial carbon to a higher trophic-level fish community in a eutrophic lake food web: fatty acid and stable isotope analyses.Oecologia · 2018Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
Fractionation of stable carbon (C) isotopes in the essential fatty acids 18:2n-6, 18:3n-3, 20:4n-6, 20:5n-3, and 22:6n-3 was investigated in the zebrafish Danio rerio and the mud snail Bellamya chinensis fed the same two diets. These diets differed in essential fatty acid compositions: (1) TetraMin contained all five fatty acids, and (2) Chlorella contained only two, 18:2n-6 and 18:3n-3. On average, the isotopic fractionation was -0.5 ± 0.9 ‰ for 18:2n-6 and 18:3n-3 for all experiments, indicating that the fractionation of these essential fatty acids was negligible. However, the isotopic fractionation of 20:4n-6, 20:5n-3, and 22:6n-3 varied greatly between species and between diets. The isotopic fractionation of the Chlorella diet was -0.2 and -6.9 ‰ for zebrafish and mud snail, but 4.2 and -1.3 ‰, respectively, when these consumers were fed TetraMin. This variation could be explained by the different amount of assimilation and the biosynthesis of these fatty acids from their precursors (i.e., 18:2n-6 and 18:3n-3). These results indicate that the isotopic composition of C20 and C22 essential fatty acids was strongly influenced by the fatty acid composition in the diets. Thus the stable C isotope ratios of C18 essential fatty acids in consumers are more useful as dietary tracers in food web studies.
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