People > Dr Andy Rees

Dr Andy Rees


Contact Details

+44 (0)1752 633100 (switchboard)


Dr Andrew Rees is a senior scientist at PML. He has a wide experience within the field of marine nutrient cycling and phytoplankton productivity, initially on extensive field surveys of the estuarine and oceanic distribution of denitrification and nitrous oxide and, more recently, on the pelagic uptake and flux of nitrogen with respect to bacterial and phytoplankton productivity. His published papers relate to expertise in the use of relevant analytical procedures, including stable isotope mass spectrometry, gas chromatography and nutrient autoanalysis.

Andy leads the nutrient cycling group at PML and is manager of the Atlantic Meridional Transect (AMT) programme (2007–present). Current research projects include the impact of ocean acidification on the marine nitrogen cycle, the activity and distribution of nitrogen fixing organisms and the sea-air flux of nitrous oxide and methane in ocean and coastal waters.

Andy has written over 50 peer reviewed research papers.


Atlantic Ecosystem Assessment, Forecasting and Sustainability (AtlantECO)

Contact: Dr Andy Rees

AtlantECO is working to understand the human impacts on the marine ecosystems and processes in the Atlantic. The main focus of the project is to...

Detection and Attribution of Regional greenhouse gas Emissions in the UK

Contact: Dr Yuri Artioli

DARE-UK is developing systems to estimate greenhouse gas emissions to improve the accuracy of the UK’s greenhouse gas emissions inventory...

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Other key projects

Radiatively Active Gases from the N. Atlantic Region and Climate Change (RAGNARoCC) – (2013 – 2016)

Carbon/Nutrient dynamics and fluxes over shelf systems (CANDYFLOSS) – (2013 – 2016)

Mediterranean Sea Acidifcation under changing climate (2010–2014)

Ocean Acidification impacts on sea-surface, biology, biogeochemistry and climate (2010–2014)

The impact of coastal upwellings on air-sea exchange of climatically important gases (2006–2010)

UK Carbon Capture and Storage Consortium (2004–2007)

The impact of ocean acidifcation on the biodiversity, function and health of coastal marine sediment systems (2004–2007)

Selected key publications

N. J. Wyatt, A. Milne, E.M.S. Woodward, A.P. Rees, T.J. Browning, H.A. Bouman, P.J. Worsfold, M.C. Lohan (2014)  Biogeochemical cycling of dissolved zinc along the GEOTRACES South Atlantic transect GA10 at 40o S. Global Biogeochemical Cycles 01/2014; DOI:10.1002/2013GB004637

Clark, D. R., Brown, I. J., Rees, A. P., Somerfield, P. J., and Miller, P. I.: The influence of ocean acidification on nitrogen regeneration and nitrous oxide production in the North-West European shelf sea, Biogeosciences Discuss., 11, 3113-3165, doi:10.5194/bgd-11-3113-2014, 2014.

Brown, I.J., Torres, R., and Rees A.P. (2014) The origin of sub-surface source waters define the sea-air flux of methane in the Mauritanian Upwelling, NW Africa. Dynamics of Oceans and Atmospheres, Volume 67, 39–46. DOI: 10.1016/j.dynatmoce.2014.06.001

Rees, A.P. (2012). Pressures on the marine environment and the changing climate of ocean biogeochemistry. Phil. Trans. R. Soc. A 2012 370, 5613-5635. doi: 10.1098/rsta.2012.0399

Rees, A. P., I. J.Brown, D. R. Clark, and R. Torres. 2011. The Lagrangian progression of nitrous oxide within filaments formed in the Mauritanian upwelling, Geophys. Res. Lett., 38, L21606, doi:10.1029/2011GL049322.)

Clark, D.R., P.I.  Miller, E.M.S. Woodward, A.P. Rees. 2011. Inorganic nitrogen assimilation and regeneration in the coastal upwelling region of the Iberian Peninsula. Limnol. Oceanogr., 56(5), 2011, 1689–1702)

K.A. Turk, A.P. Rees, J.P. Zehr, N. Pereira, P. Swift, R. Shelley, M. Lohan, E.M.S. Woodward and J. Gilbert. 2011. Nitrogen fixation and nitrogenase (nifH) expression in tropical waters of the eastern North Atlantic. The ISME Journal , (13 January 2011) | doi:10.1038/ismej.2010.205)

M.J. Whitehouse A. Atkinson, A.P. Rees. 2011. Close coupling between ammonium uptake by phytoplankton and excretion by Antarctic krill, Euphausia superba. Deep-Sea Research I 58 (2011) 725–732.)

B.B. Ward, A.P. Rees, P.J. Somerfield, I. Joint. 2011. Linking phytoplankton community composition to seasonal changes in f ratio. The ISME Journal, 5, 1759-1770. doi:10.1038/ismej.2011.50)

Wyatt NJ, Kitidis V, Woodward EMS, Rees AP, Widdicombe S, Lohan M. 2010. Effects of high CO2 on the fixed nitrogen inventory of the Western English Channel. Journal of Plankton Research, 32(5), 631–641.)

Rees AP, Dixon JL, Widdicombe S, Wyatt N. 2009. Observations of nitrogen chemistry and fluxes under high CO2 conditions: implications for the Mediterranean Sea. In: Briand F (editor). CIESM, 2008. Impacts of acidification on biological, chemical and physicalsystems in the Mediterranean and Black Seas. CIESM Workshop Monographs 36, 43–50.)

Rees AP, Gilbert JA, Kelly-Gerreyn BA. 2009. Nitrogen fixation in the western English Channel (NE Atlantic Ocean). Marine Ecology Progress Series, 374, 7–12.)

Rees AP, Hope SB, Widdicombe CE, Dixon JL, Woodward EMS, Fitzsimons MF. 2009. Alkaline phosphatase activity in the western English Channel: Elevations induced by high summertime rainfall. Estuarine, Coastal and Shelf Science, 81(4), 569–574.)

Robinson C, Tilstone GH, Rees AP, Smyth TJ, Fishwick JR, Tarran GA, Luz B, Barkan E, David E. 2009. Comparison of in vitro and in situ plankton production determinations. Aquatic Microbial Ecology, 54(1), 13–34.

Other activities

Challenger Society for Marine Science Council (2005–2008)

NERC Peer Review College (2008–2011) 

Member of the NERC Marine Facilities Advisory Panel