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Dr Tamsin Runnalls

Dr Tamsin Runnalls
LiME Hub Manager

Halsbury Building 142



  • 2005: PhD Pharmaceuticals in the Environment: Effects of Clofibric acid on fish. Brunel University.
  • 1998: MSc Applied Fish Biology, Plymouth University.
  • 1996: BSc (Hons) Fisheries Studies, Plymouth University.


1998-2000 Research Technician

I was originally employed at Brunel as a research technician in the Fish Physiology Research group (as it was then) for 2 years, (1998-2000) under John Sumpter, where I was helping to developing a pair breeding assay for assessing the effects of estrogenic chemicals on fish.

Harries, J.E., Runnalls, T, Hill, E., Harris, C.A., Maddix, S, Sumpter, J.P., Tyler, C.R. (2000) Development of a reproductive performance test for endocrine disrupting chemicals using pair-breeding fathead minnows (Pimephales promelas). Environmental Science and Technology, 34: 3003-3011.

2000-2004 PhD

After this I started my PhD (2000-2004) entitled 'Pharmaceuticals in the Environment: The effects of Clofibric acid on fihs.' In which I was examining the effects of a lipid lowering drug metabolite (Clofibric acid) on fhis. Some of the results can be seen in my publication in Aquatic Toxicology:

Runnalls, T. J., Hala, D.N., and Sumpter, J.P. (2007) Preliminary studies into the effects of the human pharmaceutical Clorfibric acid on sperm parameters in adult Fathead minnow. Aquatic Toxicology, 84 111-118.

The media were also interested in the results:

Steve Farrar (2004) Cast-off drugs harm wildlife. The Times Higher Education Supplement. 21st May 2004.

2003-2004 Post Doc

Whilst working on my PhD thesis I was also involved (December 2003 - September 2004) in a large EU grant project: 'ACE', where I was covering a Post doc position (Dr Cath Harris who was on maternity leave). The project aimed to contribute to the hazard assessment of endocrine disrupting chemicals by analysing the response of biological systems (both in vitro and in aquatic species in vivo) to mixtures of xenoestrogens.

Jayne V. Brian, Catherine A. Harris, Martin Scholze, Thomas Backhaus, Petra Booy, Marja Lamoree, Giulio Pojana, Niels Jonkers, Tamsin Runnalls, Angela Bonf‡, Antonio Marcomini, and John P. Sumpter (2005). Accurate Prediction of the Response of Freshwater Fish to a Mixture of Estrogenic Chemicals. Environmental Health Perspectives, 113: 6.

2004-2007 Post Doc

From October 2004 - May 2007 I was involved in another big EU funded grant called EDEN - where I was trying to develop a biomarker for detecting estrogenic chemicals in the aquatic environment, (by making an estrogen responsive glowing fish).

2007-2008 Post Doc

From March 2007 - November 2008 I was been involved with the EDCAT project, (Endocrine Disruption in Catchments). This is an inter-disciplinary research programme designed to measure the effects of endocrine-active pollutants on fish populations.

2008- present Post Doc

A new project I am involved in (Nov 2008 - ) is looking into the effects of progestogens on fish, a grant funded by DEFRA: Intelligent Ecotoxicology: Synthetic progestogens as a test case.