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Вид документа : Статья из журнала
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Автор(ы) : Gladyshev, Michail, I, Gladysheva, Elena E., Sushchik, Nadezhda N.
Заглавие : Preliminary estimation of the export of omega-3 polyunsaturated fatty acids from aquatic to terrestrial ecosystems in biomes via emergent insects
Колич.характеристики :6 с
Коллективы : Siberian Federal University [6.1504.2017/PCh]; Russian Federal Tasks of Fundamental Research [51.1.1]
Место публикации : Ecol. Complex.: ELSEVIER, 2019. - Vol. 38. - С. 140-145. - ISSN 1476-945X, DOI 10.1016/j.ecocom.2019.03.007. - ISSN 1476-9840(eISSN)
Примечания : Cited References:84. - The work was supported by the project of Siberian Federal University, carried out according to Federal Tasks of Ministry of Education and Science of the Russian Federation No. 6.1504.2017/PCh and by Russian Federal Tasks of Fundamental Research (project No. 51.1.1). We are grateful to two anonymous Reviewers for their kind help to significantly improve the manuscript.
Предметные рубрики: BENTHIC SECONDARY PRODUCTION
RECIPROCAL SUBSIDIES
FRESH-WATER
Аннотация: Some terrestrial consumers may be limited by food quality, namely by contents of essential polyunsaturated fatty acids (PUFA), eicosapentaenoic acid (20:5n - 3, EPA) and docosahexaenoic acid (22:6n - 3, DHA) in their food. Since EPA and DHA are mainly produced in aquatic ecosystems, for future estimating of the potential limitation by food quality in global scale, the water-land fluxes of these PUFA with the biomass of emergent aquatic insects in several biomes were calculated. The water /land area ratios for each biome were calculated by dividing the water area of each biome by its terrestrial area. Data on insect emergence from water bodies (g of dry mass m(-2) year(-1)), were summarized and averaged for each biome. From available data, EPA and DHA contents (mg g(-1) dry mass), in the biomass of emergent aquatic insects were calculated first so that annual fluxes of PUFA to land area via aquatic insect emergence could be estimated for each biome. PUFA fluxes occurred between the biomes, ranging from 0.04 to 4.39 mg m(-2) year(-1). In this study, the aquatic PUFA supply to land area appeared to be significantly lower than estimated earlier. This suggests that terrestrial consumers may experience food quality limitations mediated by shortage of PUFA compounds.
WOS,
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