Do planktonic rotifers rely on terrestrial organic matter as a food source in reservoir ecosystems?
| Autor: | Antoni Amirowicz, Michał Gąsiorowski, Elżbieta Wilk-Woźniak, Joanna Gadzinowska, Agnieszka Pociecha |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
geography Microbial food web geography.geographical_feature_category biology δ13C Ecology Rotifer Aquatic Science Particulates Plankton biology.organism_classification chemistry Environmental chemistry Tributary Environmental science Organic matter Ecosystem Ecology Evolution Behavior and Systematics |
| Zdroj: | International Review of Hydrobiology. 99:157-160 |
| ISSN: | 1434-2944 |
| DOI: | 10.1002/iroh.201301717 |
| Popis: | We studied the effect of input of allochthonous organic matter on rotifers in a medium-sized (9.8 km2) reservoir correlating rotifer abundance to values of δ13C in a sestonic fraction of ≥10 µm. Total density of rotifers during the study period was significantly correlated with tributary inflow during the time preceding the sampling date, with a delay of about 10–13 days. Concomitant with elevated tributary inflow, the δ13C value in the sestonic fraction of plankton samples decreased approaching a level typical of terrestrial material. Thus, the response in rotifer production might be due to the input of energy in the form of dissolved and/or particulate allochthonous organic matter that becomes available to the rotifers through the microbial food web. |
| Databáze: | OpenAIRE |
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