NINA BEDNARŠEK - Multiple-Stressor Scientist


Ph.D., Biological Oceanography, University of East Anglia, Cambridge, UK, 2007-2010

M.Sc., Environmental Diagnostic, Cranfield University, UK, 2006

B.Sc., Interdepartmental Study of Microbiology University of Ljubljana, Slovenia, 2005


Nina Bednarsek is a scientist studying the impact of multiple stressors on pelagic zooplankton. She specializes in ocean acidification and the impacts on pelagic calcifiers known as pteropods. Her present research efforts focus on determining biological thresholds for a variety of organisms exposed to the combined effect of ocean acidification and hypoxia in the Southern California Bight, as well as along the entire U.S. West Coast, up to the Arctic.


Scientist, Southern California Coastal Water Research Project Authority. Costa Mesa, CA. 2017-Present

Senior Research Scientist, Alfred-Wegener-Institut, Germany. 2016- 2017

Research Scientist, University of Washington. 2016

Science-Policy Specialist, Washington Ocean Acidification Centre at the University of Washington. 2014-2016

National Research Council Post-doctoral Fellowship, National Oceanographic and Atmospheric Administration (NOAA), Pacific Marine Environment Laboratory. 2012 – 2014

Visiting Professor at Angers University, Angers University, France. 2012

Research Associate and Lecturer, University of Nova Gorica, Slovenia. 2011 – 2013

Visiting Fellow at the Tyndall Centre for Climate Change Research, MARine Ecosystem Model Intercomparison Project (MAREMIP), University of East Anglia, School of Environmental Sciences. UK 2011

Marie Curie Early Stage Fellowship, Laboratory for Global Marine and Atmospheric Chemistry, UK. 2007-2010

Visiting Fellow at Woods Hole Oceanographic Institution, Woods Hole Oceanographic Institution, Woods Hole, USA. 2008

Zois Fellowship for Talented Early Career Stage Researchers, Cranfield University, UK for M.Sc. Programme Environmental Diagnostics. 2005-2006


Best Oral Scientific Presentation Award, PICES, 2014

National Research Council Fellowship, 2012 (awarded for excellence in research).

Edith Fanta Award for the Most Prominent Young Researcher and the Best Oral Presentation, 2009

Best Oral Presentation Award, British Antarctic Survey Ph.D., 2009

Marie Curie Doctoral Fellowship for Excellence in Science, 2007.


1. Bednaršek, N., Tarling, G. A., Bakker, D. C. E., Fielding, S., Jones, E.M., Venables, H. J., Ward, P., Kuzirian, A., Lézé, B., Feely, R. A. Murphy, E.J. 2012. Extensive dissolution of live pteropods in the Southern Ocean. Nature Geoscience 5, 881-885.

2. Bednaršek, N.; Harvey, C.J., McCabe, R.M., Tolimieri, N., Klinger, T. 2017. New Ocean, New Needs: Application of Pteropod Shell Dissolution as a Biological Indicator for Marine Resource Management, Ecological Indicators, 76, 240-244.

3. Bednaršek, N., Harvey, C.J., Kaplan, I.C., Feely, R.A., Možina, J. 2016. Pteropods on the edge: Cumulative effects of ocean acidification, warming, and deoxygenation. Progress in Oceanography, 145, 1-24.

4. Bednaršek, N., Johnson, J., Feely, R.A. 2016. Vulnerability of pteropod (Limacina helicina) to ocean acidification: shell dissolution occurs despite an intact organic layer. Deep Sea Research Part II: Topical Studies in Oceanography 127: 53-56.

5. Bednaršek, N., Ohman, M.D. Changes in pteropod vertical distribution, abundance and species richness in the California Current System due to ocean acidification. 2015. Marine Ecology Progress Series, doi: 10.3354/meps11199.

6. Bednaršek, N., Feely, R.A., Peterson, W., Reum, J., Alin S.R., Hales, B. 2014. Limacina helicina shell dissolution as an indicator of declining habitat suitability owing to ocean acidification in the California Current Ecosystem. Proceedings to the Royal Society B, 281, 1785.

7. Bednaršek, N., Tarling, G. A., Bakker, D. C. E., Fielding, S., Feely, R.A. 2014. Dissolution Dominating Calcification Process in Polar Pteropods Close to the Point of Aragonite Undersaturation. PloS one, 9(10), e109183.

8. Bednaršek, N., Možina, J., Vogt, M., O'Brien, C., Tarling, G.A. 2012. The global distribution of pteropods and their contribution to carbonate and carbon biomass in the modern ocean. Earth Syst. Sci. Data, 4, 167-186.

9. Bednaršek, N., Tarling, G. A., Bakker, D. C., Fielding, S., Cohen, A., Kuzirian, A., McCorkle, D., Lézé, B. and Montagna, R. 2012. Description and quantification of pteropod shell dissolution: a sensitive bioindicator of ocean acidification. Global Change Biology, 18, 2378–2388.

10. Bednaršek, N., Tarling G., Bakker D., Fielding, S. 2012. Population dynamics and biogeochemical significance of Limacina helicina ant. in the Scotia Sea (Southern Ocean). Deep Sea Research II, 59-60, 105-116.

11. Feely, R., Alin, S., Carter, B., Bednaršek, N. 2016: Chemical and biological impact of ocean acidification off the West Coast of North America. Estuarine, Coastal and Shelf Science.

12. Weisberg, S., Bednaršek, N., Feely, R., Chan, F., Boehm, A., Sutula, M., Ruesink, J., Hales, B., Largier, J., Newton, J. 2016. Water quality criteria for an acidifying ocean: Challenges and opportunities for improvement. Ocean & Coastal Management, 126, 31-41.

13. Reum, J. C., Alin, S. R., Harvey, C. J., Bednaršek, N., Evans, W., Feely, R. A., Sabine, C. L. 2015. Interpretation and design of ocean acidification experiments in upwelling systems in the context of carbonate chemistry co-variation with temperature and oxygen. ICES Journal of Marine Science: Journal du Conseil

14. Andersson, A.J, Kline, D.I, Edmunds, P.J, Archer, S.D, Bednaršek, N., Carpenter, R.C. et al. 2015. Understanding ocean acidification impacts on organismal to ecological scales. Oceanography. 28(2).

15. Alin, S.R., Brainard, R.E, Price, N.N, Newton, J.A, Cohen, A.L, Peterson, W.T, Bednaršek, N. et al. 2015. Characterizing the natural system: toward sustained, integrated coastal ocean acidification observing networks to facilitate resource management and decision support. Oceanography. 28(2).

16. Howes, E. L., Bednaršek N., et al. 2014. Sink and swim, a status review of thecosome pteropod culture techniques. Journal of Plankton Research, doi: 10.1093/plankt/fbu002.

17. Buitenhuis E. T., Vogt M., Moriarty R., Swan C., Bednaršek N. et al. 2013. MAREDAT: Towards a world ocean atlas of marine ecosystem data, Earth System Science Data Discussions, 5, 1077-1106.

18. Hunt, B., Strugnell, J., Bednaršek, N. et al. 2010. Poles Apart: The “Bipolar” Pteropod species Limacina helicina is genetically distinct between the Arctic and Antarctic Oceans. PLoS ONE 5,3, e9835.


Bednaršek, N.: Exposure history determining pteropod vulnerability to ocean acidification (ASLO, USA, 2016)

Bednaršek, N.: Pteropods in the California Current System: Indicators for ocean acidification across different upwelling regimes (co-chair of IMBER workshop, also invited talk, Italy, 2015).

Bednaršek, N. The application of pteropod for ocean acidification monitoring in Norwegian Waters (invited talk by Norwegian Governmental Agency, 2015).

Bednaršek, N., et al. From science to management: using pteropods as indicators for ocean acidification monitoring, Our Common Future, 2015 (oral presentation).

Bednaršek, N.: Pteropod as indicators from scientific, policy and management perspective (invited talk at the Pteropod International Workshop, UK, 2015 (oral presentation).

Bednaršek, N.: Pteropod as indicators for ocean acidification (invited talk at Royal Society OA Workshop, UK, 2015).

Bednaršek, N., et al. Pteropod vulnerability to ocean acidification and hypoxia in the California Current System, 2nd International Ocean Research Conference, IOC UNESCO, 2014 (oral presentation).

Bednaršek, N., et al. Loss of calcification and survival scope under current conditions in pteropods in the California Current System, PICES, 2014 (oral talk; selected for the best oral presentation.