Transfer efficiency of carbon, nutrients, and polyunsaturated fatty acids in planktonic food webs under different environmental conditions
| Autor: | Nadezhda N. Sushchik, Michail I. Gladyshev, Maciej Karpowicz, Andrzej Górniak, O. V. Anishchenko, Andrew R. Dzialowski, Irina Feniova, Jolanta Ejsmont-Karabin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
zooplankton food quality 010603 evolutionary biology 01 natural sciences Zooplankton 03 medical and health sciences Nutrient Phytoplankton Ecosystem Ecology Evolution Behavior and Systematics QH540-549.5 030304 developmental biology Nature and Landscape Conservation Trophic level Original Research chemistry.chemical_classification 0303 health sciences Ecology Chemistry fungi Plankton biogeochemical cycle essential substances eutrophication Environmental chemistry phytoplankton Eutrophication dystrophication Polyunsaturated fatty acid |
| Zdroj: | Ecology and Evolution Ecology and Evolution, Vol 11, Iss 12, Pp 8201-8214 (2021) |
| ISSN: | 2045-7758 |
| Popis: | The trophic transfer efficiency (TTE) is an important indicator of ecosystem functioning. However, TTE data from freshwater food webs are ambiguous due to differences in time scales and methods. We investigated the transfer of essential substances (carbon, nutrients, and polyunsaturated fatty acids) through plankton communities in 30 Polish lakes with different trophic status in the middle of summer. The results of our study revealed that different essential substances were transferred from phytoplankton to zooplankton with varying efficiencies. The average TTE of C, N, P, and the sum of ω‐3 PUFA were 6.55%, 9.82%, 15.82%, and 20.90%, respectively. Our results also show a large mismatch between the elemental and biochemical compositions of zooplankton and their food during the peak of the summer stagnation, which may further promote the accumulation of essential substances. There were also large differences in TTEs between trophic conditions, with the highest efficiencies in oligotrophic lakes and the lowest in dystrophic and eutrophic lakes. Therefore, our study indicates that disturbances like eutrophication and dystrophication similarly decrease the TTE of essential substances between phytoplankton and zooplankton in freshwater food webs. The results of our study revealed that different essential substances (C, N, P, and polyunsaturated fatty acids) were transferred from phytoplankton to zooplankton with varying efficiencies. There were also large differences in TTEs between trophic conditions, with the highest efficiencies in oligotrophic lakes and the lowest in dystrophic and eutrophic lakes. Therefore, our study indicates that disturbances like eutrophication and dystrophication similarly decrease the TTE of essential substances between phytoplankton and zooplankton in freshwater food webs. |
| Databáze: | OpenAIRE |
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