People > Dr James Clark

Dr James Clark

Marine Ecosystem Modeller

Contact Details

+44 (0)1752 633100 (switchboard)


James Clark is a research scientist who works within the Marine Ecosystem Modelling Group at PML. He has a Masters degree in Physics with Astrophysics from the University of York, and a PhD in Environmental Science from the University of East Anglia.

Since moving to PML in 2013, he has worked on a variety of projects, including the UK Shelf Seas Biogeochemistry Programme, which is co-funded by NERC and Defra, and a NERC funded project on the bioavailability of microplastic debris in the marine environment. As part of the latter project, he has written an offline particle tracking tool (PyLag) to help understand the movement and fate of microplastics in the marine environment.

His research interests span a range of topics, including evolutionary adaptation and acclimation in phytoplankton, marine ecology and biogeochemistry, and marine pollution.


The Economics of Marine Plastic Pollution: What are the Benefits of International Cooperation
The Economics of Marine Plastic Pollution: What are the Benefits of International Cooperation

Contact: Dr James Clark

The Economics of Marine Plastic Pollution: What are the Benefits of International Cooperation? project is calculating the economic costs of the...

Pathways Of Dispersal for Cholera And Solution Tools (PODCAST)

Contact: Dr Marie-Fanny Racault

Image courtesy of the World Health Organization.Focusing on the northern Indian Ocean, a multidisciplinary team of scientists from India, Japan and...

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Other key projects

UK National Capability in Marine System Modelling (NERC)

Selected key publications

Kreft, J.-U., Plugge, C. M., Grimm, V., Prats, C., Leveau, J. H. J., Banitz, T., Baines, S., Clark, J. R., Ros, A., Klapper, I., Topping, C. J., Field, A. J., Schuler, A., Litchman, E., & Hellweger, F. L. Mighty small: Observing and modeling individual microbes becomes big science Proceedings of the National Academy of Sciences, 2013, 110, 18027-18028

Toseland, A., Daines, S., Clark, J. R,, Kirkham, A., Strauss, J., Uhlig, C., Lenton, T., Valentin, K., Pearson, G., Moulton, V., Mock, T., The impact of temperature on marine phytoplankton resource allocation and metabolism. Nature Climate Change 2013 10.1038 / nclimate1989

Clark, J. R., Daines S., Williams, H. T. P., Lenton T. M., 2013. Environmental selection and resource allocation determine spatial patterns in picophytoplankton cell size. Limnology and Oceanography, 58, 1008-1022.

Boyle, R. A., Clark, J. R., Poulton, S. W., Shields-Zhou, G., Canfield, D. E., Lenton, T. M., 2013. Nitrogen cycle feedbacks as a control on euxinia in the mid-Proterozoic ocean. Nature Communications, 4, 1533

Clark, J. R.,  Daines S., Lenton T. M., Watson A. J., Williams, H. T. P., 2011. Individual-based modelling of adaptation in marine microbial populations using genetically defined physiological parameters. Ecological Modelling. 222(23-24), 3823-3837.