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Fisheries Management and Marine Ecology Lecturer


  • Over 15 years’ experience working in the fisheries industry and studying the biology and management of fish
  • Worked on a variety of commercially important marine and freshwater fish and invertebrate species in the UK and overseas in partnerships with a range of organisations, including the Environmental Agency and Cefas
  • PhD examined the ecological impact of non-native parasites introduced through aquaculture on native British fish
  • Recent projects range from studies on the use of ecological networks in invasion biology to assessments of river restoration on sport fish populations



  • Publications

    Sana, S., Williams, C.F., Hardouin, E.A., Blake, A., Davison, P., Pegg, J., Paley, R., Zhang, T., Andreou, D., 2018. Phylogenetic and environmental DNA insights into emerging aquatic parasites: implications for risk management. International Journal of Parasitology

    Pegg, J., Andreou, D., Williams, C.F. and Britton, J.R., 2017. Consistent patterns of trophic niche specialization in host populations infected with a non-native copepod parasite. Parasitology, 144(7), pp.945-953.

    Copp, G.H., Britton, J.R., Guo, Z., Edmonds-Brown, V.R., Pegg, J., Vilizzi, L. and Davison, P.I., 2017. Trophic consequences of non-native pumpkinseed Lepomis gibbosus for native pond fishes. Biological invasions, 19(1), pp.25-41.

    Herbert, R.J., Collins, K., Mallinson, J., Hall, A.E., Pegg, J., Ross, K., Clarke, L. and Clements, T., 2017. Epibenthic and mobile species colonisation of a geotextile artificial surf reef on the south coast of England. PloS one, 12(9), p.e0184100.

    Laverty, C., Green, K.D., Dick, J.T., Barrios-O’Neill, D., Mensink, P.J., Médoc, V., Spataro, T., Caffrey, J.M., Lucy, F.E., Boets, P., Britton, J.R., Pegg, J. and Gallagher, C., 2017. Assessing the ecological impacts of invasive species based on their functional responses and abundances. Biological Invasions, 19(5), pp.1653-1665.

    Médoc, V., Firmat, C., Sheath, D.J., Pegg, J., Andreou, D. and Britton, J.R., 2017. Parasites and biological invasions: predicting ecological alterations at levels from individual hosts to whole networks. In Advances in Ecological Research (Vol. 57, pp. 1-54). Academic Press.

    Pegg, J., Andreou, D., Williams, C.F., and Britton J.R. 2015. Temporal changes in growth, condition and trophic niche in juvenile Cyprinus carpio infected with a non-native parasite. Parasitology. doi:10.1017/S0031182015001237

    Pegg, J., Andreou, D., Williams, C.F., and Britton J.R. 2015. Functional morphology and piscivory of the European eel Anguilla anguilla predicts their infection by the invasive parasite Anguillicoloides crassus. Freshwater Biology. DOI: 10.1111/fwb.12624

    Pegg, J. and Britton, J.R., 2014. Fisheries studies should consider the effects of fish parasites. Integrated Environmental Assessment and Management, 10 (3), 477-478.

    Jackson, M.C., Allen, R., Pegg, J. and Britton, J.R., 2013. Do trophic subsidies affect the outcome of introductions of a non-native freshwater fish? Freshwater Biology, 58 (10), 2144-2153.

    Britton, J.R., Pegg, J. and Davies, G.D., 2013. Spatial variation in the somatic growth rates of European barbel Barbus barbus: A UK perspective. Ecology of Freshwater Fish, 22 (1), 21-29.

    Pegg,J., Steer, M., Belle, E.M.S., 2013 A survey of cardinal fish (Apogonidae) of Antsiranana Bay, northern Madagascar. Madagascar Conservation & Development 7 (3), 120-125

    Britton, J.R., Pegg, J., Baker, D. and Williams, C.F., 2012. Do lower feeding rates result in reduced growth of a cyprinid fish infected with the Asian tapeworm? Ecology of Freshwater Fish, 21 (2), 172-175.

    Pegg, J., Williams, C., Cucherousset, J. and Britton, J.R., 2011. What are the consequences of infection by the introduced parasite Philometroides sanguineus for threatened crucian carp Carassius carassius populations in England? Ecology Of Freshwater Fish.

    Britton, J.R. and Pegg, J., 2011. Ecology of European barbel Barbus barbus: implications for river, fishery and conservation management. Reviews in Fisheries Science, 19, 321-330.

    Pegg, J. and Britton, J.R., 2011. Effects of inter- and intra-specific competition on the growth rates of juvenile European barbel Barbus barbus used in the stock enhancement of UK fisheries. Fisheries Research, 112, 8-12.

    Britton, J.R., Pegg, J. and Williams, C.F., 2011. Pathological and ecological host consequences of infection by an introduced fish parasite. PLoS One, 6.

    Britton, J.R., Pegg, J. and Gozlan, R.E., 2011. Quantifying imperfect detection in an invasive pest fish and the implications for conservation management. Biological Conservation, 144, 2177-2181.

    Britton, J.R., Pegg, J., Sedgwick, R. and Page, R., 2007. Investigating the catch returns and growth rate of Wels catfish, Silurus Glanis, using mark-recapture. Fisheries Management and Ecology, 14, 263-268.

    Britton, J.R., Pegg, J., Shepherd, J.S. and Toms, S., 2006. Revealing the Prey Items of the Otter Lutra Lutra in South West England Using Stomach Contents Analysis. Folia Zoologica, 55, 167-174.