Olivia Simmons

PhD Student

Olivia SimmonsEmail: osimmons@gwct.org.uk

  • Doctor of Philosophy (Ph.D.), Bournemouth University, (2018-present)
  • Masters of Resource Management (M.R.M.), University Centre of the Westfjords (2016-2018)
  • Bachelor of Science (B.Sc. Hons), Memorial University of Newfoundland, (2012-2016)

Short biography

I am a PhD student with Bournemouth University and the Game & Wildlife Conservation Trust. The focus of my research is to test the hypothesis that contemporary population declines in anadromous salmonids are a function of changes in their migration phenology.

External links and affiliations

Scientific publications

Peer-reviewed articles

Simmons, O.M., Gregory, S.D., Gillingham, P.K., Riley, W.D., Scott, L.J., Britton, J.R. (accepted). Biological and environmental influences on the migration phenology of Atlantic salmon Salmo salar smolts in a chalk stream in southern England. Freshwater Biology.

 Marsh, J.M., Lauridsen, R.B., Riley, W.D., Simmons, O.M., Artero, C., Scott, L.J., Beaumont, W.R.C., Beaumont, W.A., Davy-Bowker, J., Lecointre, T., Roberts, D.E., Gregory, S.D. (2021). Warm winters and cool springs negatively influence recruitment of Atlantic salmon (Salmo salar L.) in southern England. Journal of Fish Biologyhttps://doi.org/10.1111/jfb.14760 

Simmons, O.M., Britton, J.R., Gillingham, P.K., & Gregory, S.D. (2020) Influence of environmental and biological factors on the overwinter growth rate of Atlantic salmon Salmo salar in a UK chalk stream. Ecology of Freshwater Fishhttps://doi.org/10.1111/eff.12542

Simmons, O.M., Thorsteinsson, M., & Ólafsdóttir, G.Á (2019) Trophic dynamics of anadromous brown trout and Arctic charr in NW Iceland and their correlation to salmon lice infestation. Polar Biology, 42, 2119–2130. https://doi.org/10.1007/s00300-019-02586-1

Gregory, S.D., Ibbotson, A.T.,  Riley, W.D., Nevoux, M., Lauridsen, R.B., Russel, I.C., Britton, J.R., Gillingham, P.K., Simmons, O.M., Rivot, E. (2019). Atlantic salmon return rate increases with smolt length. ICES Journal of Marine Science, 76, 1702–1712. https://doi.org/10.1093/icesjms/fsz066


  • Simmons, O.M. (2018) An Assessment of the Ecology of Escaped Farmed Rainbow Trout (Oncorhynchus mykiss) in the Westfjords, Iceland, MRM thesis, University Centre of the Westfjords, Iceland. http://hdl.handle.net/1946/31327
  • Simmons, O.M. (2016) Progression of an alien invasion: The European green crab, Carcinus maenas (Linnaeus, 1758), in Bonne Bay, Newfoundland, BSc. (Hons) thesis, Memorial University of Newfoundland, Canada

Selected oral and poster presentations

  • Predicting the effects of environmental factors and juvenile body length on adult marine return rates of Atlantic salmon Salmo salar. NoWPaS Workshop 2021, virtual meeting.
  • Timing is Everything: factors that affect Atlantic salmon smolt migration phenology. NoWPaS Workshop 2020, University of Iceland, Laugarvatn, Iceland.
  • Climate Effects Overwinter Growth Rate of Juvenile Atlantic Salmon (Salmo salar). 5th Annual Post Graduate Researcher Conference 2019, Bournemouth University, UK. Awarded third place for poster presentation.
  • Predicting the implications of changes in migration phenology for the conservation of Atlantic Salmon (Salmo salar). NoWPaS Workshop 2019, Scottish Centre for Ecology and the Natural Environment, Rowardennan, Scotland.
  • An Assessment of the Ecology of Escaped Farmed Rainbow Trout (Oncorhynchus mykiss) in the Westfjords, Iceland. The 7th Ecological Society of Iceland conference 2018, Reykjavík, Iceland.
  • The European Green Crab (Carcinus maenas) in Bonne Bay, Newfoundland. Science Atlantic Aquaculture and Fisheries Conference 2016, Halifax, Canada.


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