Ecology of freshwater ostracods from Northern Patagonia and their potential application in paleo-environmental reconstructions

  • Corina Coviaga
  • Gabriela Cusminsky
  • Patricia Pérez


In order to generate a database of the auto-ecology and distribution of Argentinian North Patagonian ostracods (Argentina), a survey in 40 aquatic systems has been carried out. For this purpose, we report the ostracod diversity and assess the relationships between ostracod occurrence and abundance considering abiotic environmental variables. Twenty-two ostracod species have been found, three of which first record for Neotropical region and one for Argentina. Conductivity, temperature, and energy level have significantly explained ostracod distribution and abundance. Based on host waters features, three ostracod assemblages have been recognized: (1) temperate waters with moderate to high conductivity have presented in Sarscypridopsis aculeata, Potamocypris unicaudata, Heterocypris hyalinus, and Cypridopsis vidua as typical fauna; (2) environments with flowing waters were dominated by Ilyocypris ramirezi and Heterocypris incongruens, whereas (3) in cold and low conductivity environments, Tonnacypris lutaria, Eucypris virens, and Bradleystrandesia fuscata were the characteristic taxa. Our data indicate that Patagonian ostracods are largely influenced by host waters features, mainly conductivity and temperature. Likewise, due to the fact that eight of the twenty-two identified taxa in this survey were recovered in Holocene sequences from Patagonia, this study provides valuable information for future paleo-environmental reconstructions in North Patagonia.


Lacustrine Ostracoda Biodiversity Auto-ecology Paleoproxies Argentina South America 



The authors wish to thank to Lic. Lorena Y. Ramos for her advice with UPGMA analysis and Prof. María de los Angeles Contreras and Adriana Alfonso for their help with the English revision. We are very grateful to the owners and workers of the many properties where we visited during these sampling seasons. We are also grateful to the reviewers and the editors for their valuable comments that helped us to greatly improve the manuscript. This work was supported by the National Council of Science and Technology of Argentina, CONICET under Grant PIP 00819, PIP 0021; the National Agency of Scientific and Technologic Promotion under Grant PICT 0082, PICT 2014-1271; the National University of Comahue under Grant UNCo 04/B166 and 4/B194.


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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  • Corina Coviaga
    • 1
  • Gabriela Cusminsky
    • 1
  • Patricia Pérez
    • 2
  1. 1.INIBIOMA, CONICET-Universidad Nacional Del ComahueSan Carlos de BarilocheArgentina
  2. 2.Photobiology LaboratoryINIBIOMA, CONICET-Universidad Nacional Del ComahueSan Carlos de BarilocheArgentina

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