Biotechnological Hub of the NIB (BTH-NIB)

The purpose of the investment project BTH-NIB is the assurance of the appropriate infrastructural conditions for the use of research and developmental opportunities in the fields of operation of the NIB.

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Dr. Žiga Ogorelec

Working place: Research Assistant

Telephone number: +386 (0)59 23 27 38
Department: Department of Organisms and Ecosystems Research

Dr Žiga Ogorelec is a biologist working on freshwater ecosystems. He is interested in both basic research and applied projects. His work is guided by a better understanding of limnological processes, improving the water quality of lakes and rivers, reducing fish kills and making aquaculture more sustainable. Due to anthropogenic influences, many water bodies are now in need of revitalization and measures to preserve the biodiversity of native species in Slovenia and worldwide.

Scientific and research activities and interests:

  • Limnology
  • Food chains and interspecies interactions
  • Ichthyology
  • Zooplankton communities and their seasonal dynamics
  • Eutrophication and re-oligotrophication processes
  • Bioremediation of water bodies
  • Negative impacts of invasive species
  • Sustainable aquaculture

Work abroad and international cooperation:

  • Prof. Dr. Bernd Sures, University of Duisburg-Essen, Aquatic Ecology, Essen, Germany
  • PD Dr. Dietmar Straile, University of Konstanz, Limnological Institute, Konstanz, Germany
  • Prof. Dr. Lars Gosta Rudstam, Cornell University, Department of Natural Resources and the Environment, Ithaca, NY, ZDA
  • Dr. Maria Stockenreiter, Ludwig Maximilian University of Munich, Aquatic Ecology, Munich, Germany

Selected publications:

  • Ogorelec, Ž., Rudstam, L. G., & Straile, D. (2022). Can young-of-the-year invasive fish keep up with young-of-the-year native fish? A comparison of feeding rates between invasive sticklebacks and whitefish. Ecology and Evolution 12, 1–10. doi: 10.1002/ece3.8486
  • Ogorelec, Ž., Wunsch, C., Kunzmann, A. J., Octorina, P., & Navarro, J. I. (2021). Large daphniids are keystone species that link fish predation and phytoplankton in trophic cascades. Fundamental and Applied Limnology 194(4), 297–309. doi: 10.1127/fal/2020/1344