Freshwater ostracods (Crustacea) and environmental variability of polygon ponds in the tundra of the Indigirka Lowland, north-east Siberia

  • Andrea Schneider Department of Geology/Centre for Arctic Gas Hydrate, Environment and Climate (CAGE), The Arctic University of Norway, Dramsveien 201, 9037 Tromsø, Norway and Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden
  • Sebastian Wetterich Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
  • Lutz Schirrmeister Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
  • Ulrike Herzschuh Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
  • Hanno Meyer Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
  • Lyudmila A. Pestryakova Department for Geography and Biology, North Eastern Federal University Yakutsk, ul. Belinskogo 58, 677000 Yakutsk, Russia
Keywords: Arctic limnology, permafrost, patterned ground, ecological indication, freshwater ostracods

Abstract

Freshwater ostracods (Crustacea, Ostracoda) are valuable biological indicators. In Arctic environments, their habitat conditions are barely known and the abundance and diversity of ostracods is documented only in scattered records with incomplete ecological characterization. To determine the taxonomic range of ostracod assemblages and their habitat conditions in polygon ponds in the Indigirka Lowland, north-east Siberia, we collected more than 100 living ostracod individuals per site with a plankton net (mesh size 65 µm) and an exhaustor system from 27 water bodies and studied them in the context of substrate and hydrochemical data. During the summer of 2011, a single pond site and its ostracod population was selected for special study. This first record of the ostracod fauna in the Indigirka Lowland comprises eight species and three additional taxa. Fabaeformiscandona krochini and F. groenlandica were documented for the first time in continental Siberia. Repeated sampling of a low-centre polygon pond yielded insights into the population dynamics of F. pedata. We identified air temperature and precipitation as the main external drivers of water temperatures, water levels, ion concentrations and water stable isotope composition on diurnal and seasonal scales.

Keywords: Arctic limnology; permafrost; patterned ground; ecological indication; freshwater ostracods.

(Published: 1 March 2016)

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Citation: Polar Research 2016, 35, 25225, http://dx.doi.org/10.3402/polar.v35.25225

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Author Biographies

Andrea Schneider, Department of Geology/Centre for Arctic Gas Hydrate, Environment and Climate (CAGE), The Arctic University of Norway, Dramsveien 201, 9037 Tromsø, Norway and Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden
PhD student
Sebastian Wetterich, Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
researcher
Lutz Schirrmeister, Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
researcher
Ulrike Herzschuh, Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
Prof.
Hanno Meyer, Department of Periglacial Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany
researcher
Lyudmila A. Pestryakova, Department for Geography and Biology, North Eastern Federal University Yakutsk, ul. Belinskogo 58, 677000 Yakutsk, Russia
Prof.
Published
2016-03-01
How to Cite
Schneider, A., Wetterich, S., Schirrmeister, L., Herzschuh, U., Meyer, H., & Pestryakova, L. (2016). Freshwater ostracods (Crustacea) and environmental variability of polygon ponds in the tundra of the Indigirka Lowland, north-east Siberia. Polar Research, 35. https://doi.org/10.3402/polar.v35.25225
Section
Research/review articles