People > Dr Jacqueline Maud

Dr Jacqueline Maud

Plankton Ecologist

Contact Details


I am a Plankton Ecologist, and recently completed my PhD thesis. My recent research has focused on the marine copepod Calanus helgolandicus in the English Channel and its population dynamics, particularly mortality rates and sources.

Key findings include that;

  • C. helgolandicus at this site is showing little response to ocean warming;
  • that consumptive sources (predation) are usually the most frequent source of mortality and gelatinous zooplankton (including ctenophores, siphonophores, medusae and chaetognaths) tend to be the most important predators;
  • however, non-consumptive mortality sources can also be significant, for example high winds (during storm events) also contributed to mortality rates.

Prior to my PhD research I worked as a biologist in the Ocean Technologies Lab. at Bath University on an international project to develop a robot fish with an artificial lateral line (FILOSE). My contribution involved measuring and analysing rainbow trout swimming behaviour and kinematics.

I have also worked for the UK Environment Agency in a number of roles including Climate Change Scientist, Marine Scientist and Pesticides Scientist. I returned to academia in 2011 as I felt the calling of hands-on scientific research.

I have a MSc. Marine Biology (with Distinction) from Bangor University and a BSc. (Hons.) Environmental Sciences from Newcastle University.


Marine Ecosystems Research Programme (MERP)

Marine Ecosystems Research Programme (MERP)

Contact: Dr Paul Somerfield

The Marine Ecosystems Research Programme (MERP) will address key knowledge gaps in marine ecosystem research. By bringing together existing data...

Western Channel Observatory (WCO)

Western Channel Observatory (WCO)

Contact: Dr Tim Smyth

The Western Channel Observatory (WCO) is an oceanographic time-series and marine biodiversity reference site in the Western English Channel. In...

Recent publications

  • Maud, JL. 2017 Calanus helgolandicus in the Western English Channel: population dynamics and the role of mortality. Queen Mary University of London, School of Biological and Chemical Sciences, PhD Thesis.
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  • Maud, JL; Hirst, AG; Atkinson, A; Lindeque, PK; McEvoy, AJ. 2018 Mortality of Calanus helgolandicus: Sources, differences between the sexes and consumptive and nonconsumptive processes. Limnology and Oceanography, 63 (4). 1741-1761.
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  • Maud, JL; Atkinson, A; Hirst, AG; Lindeque, PK; Widdicombe, CE; Harmer, RA; McEvoy, AJ; Cummings, DG. 2015 How does Calanus helgolandicus maintain its population in a variable environment? Analysis of a 25-year time series from the English Channel. Progress in Oceanography, 137. 513-523.
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  • Atkinson, A; Harmer, RA; Widdicombe, CE; McEvoy, AJ; Smyth, TJ; Cummings, DG; Somerfield, PJ; Maud, JL; McConville, K. 2015 Questioning the role of phenology shifts and trophic mismatching in a planktonic food web. Progress in Oceanography, 137. 498-512.
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  • White, DA; Widdicombe, CE; Somerfield, PJ; Airs, RL; Tarran, GA; Maud, JL; Atkinson, A. 2015 The combined effects of seasonal community succession and adaptive algal physiology on lipid profiles of coastal phytoplankton in the western English channel. Marine Chemistry, 177 (4). 638-652.
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Selected key publications

  • Sheahan, D., Maud, J. L., Wither, A., Moffat, C. and Engelke, C. (2013). Impacts of climate change on pollution (estuarine and coastal). MCCIP Science Review 2013, 244-251.