Articles | Volume 18, issue 5
Biogeosciences, 18, 1543–1557, 2021
https://doi.org/10.5194/bg-18-1543-2021
Biogeosciences, 18, 1543–1557, 2021
https://doi.org/10.5194/bg-18-1543-2021

Research article 04 Mar 2021

Research article | 04 Mar 2021

Stable isotopic composition of top consumers in Arctic cryoconite holes: revealing divergent roles in a supraglacial trophic network

Tereza Novotná Jaroměřská et al.

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Latest update: 14 May 2021
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Short summary
Cryoconite holes are ponds on the glacier surface that play an important role in glacier nutrient pathways. This paper presents the first description of the carbon and nitrogen isotopic composition of cryoconite consumers (tardigrades and rotifers) and their potential food. We showed that consumers differ in nitrogen isotopes and carbon isotopes vary between taxa and between glaciers. The study contributes to improving knowledge about cryoconite hole functioning and cryoconite trophic networks.
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