We are studying the biology of toxic metals by investigating their ecophysiology and ecotoxicological significance.
Biodynamic modelling and the significance of trace metal concentrations in invertebrates
Different aquatic organisms have very different accumulated metal concentrations. The application of biodynamic modelling and an understanding of the processes of detoxification are key to understanding the ecophysiology and ecotoxicology of trace metals.
Trophic transfer of trace metals along marine and estuarine food chains
This research is seeking an explanation of the fundamental principles that control the dietary availability of metals in food to invertibrate suspension feeders and to carnivores feeding on invertebrate prey.
Biomonitoring of trace metal contamination in aquatic environments
We are developing a suite of cosmopolitan biomonitors of known biology to decipher the different sources of bioavailable toxic metals to aquatic organisms, with case studies in the Baltic Sea, Brazil, Montana (USA), New Zealand, Silesia (Poland) and SW England.
Reactivity and toxicity of engineered nanoparticles: risks to the aquatic environment
Commercially engineered nanoparticles containing toxic metals are on the market and therefore entering aquatic environments, with unknown potential ecotoxicological consequences. We are assessing the ecotoxicity of well-defined nanoparticles to assess the hazard potential of these nanoparticles in aquatic environments.
A biomonitor is an organism which accumulates trace metals in its tissues, the accumulated metal concentration of which provides a relative measure of the total amount of metal taken up by all routes by that organism, integrated over a preceding time period. Biomonitoring is the most direct method of measuring temporal and spatial variation of trace metal bioavailabilities to aquatic organisms caused by metal contamination.
Retired; former Head of the Life Sciences Department, focusing on the biology of trace metals in aquatic invertebrates.