Articles | Volume 12, issue 12
Biogeosciences, 12, 3819–3830, 2015
https://doi.org/10.5194/bg-12-3819-2015
Biogeosciences, 12, 3819–3830, 2015
https://doi.org/10.5194/bg-12-3819-2015
Research article
23 Jun 2015
Research article | 23 Jun 2015

The stable isotopic composition of Daphnia ephippia reflects changes in δ13C and δ18O values of food and water

J. Schilder et al.

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We show that the stable (C, N, O) isotopic composition of the water flea Daphnia pulicaria is strongly related to that of its diet (C, N) and the water they live in (O). We also show that the stable isotopic composition of the sheaths of Daphnia resting eggs (ephippia) is indicative of the isotopic composition of Daphnia that produced them. This implies that stable isotope ratios of fossil Daphnia ephippia can provide information on past ecological and climatic developments in and around lakes.
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