People > Dr Glen Tarran

Dr Glen Tarran

Marine Ecologist



Contact Details

+44 (0)1752 633100 (switchboard)

gat16/08/2018 18:28:28@pml.ac.uk

Dr Glen Tarran is interested in the use and development of technology to automate the analysis of plankton community structure through flow cytometry. He manages the PML flow cytometry facility and has a great deal of experience of using flow cytometry in a wide range of marine, freshwater and other applications involving plankton and many other particles suspended in water. He currently characterises and quantifies microbial communities with the NERC National Capability programmes of the Western (English) Channel Observatory and the Atlantic Meridional Transect and is involved in the commissioning of the Single Cell Genomics Facility at PML.

His published papers relate to plankton community composition and dynamics, particularly in the open ocean, as well as a range of papers associated with the application of flow cytometry in aquatic ecology.

Flow cytometry is a generic technique for optically analysing and quantifying particles suspended in a medium. The analysis is multi-parametric, each particle can have two light scattering and 3 fluorescence properties measured simultaneously at rates up to 5000 particles per second. The PML's flow cytometers can also pick out (sort) sub-populations from samples to give pure samples, either for culturing, verification or rate measurements on specific components of a community. The flow cytometers at PML have been used to analyse phytoplankton, bacteria, viruses, silt, blood, beads, paint particles, squid ink, detergent bubbles, metazoan tissue cell suspensions, milk, oil and so on. Basically, if it's in suspension it can be measured.

Glen has over 70 peer-reviewed research papers and book chapters.

Projects

S-3 EUROHAB - Sentinel products for detecting EUtROphication and Harmful Algal Bloom events

S-3 EUROHAB - Sentinel products for detecting EUtROphication and Harmful Algal Bloom events

Contact: Dr Gavin Tilstone

S-3 EUROHAB will use the latest satellite technology to improve the way water quality and harmful algal blooms (HABs) are monitored in the English...

Ocean color and biogeochemistry

Ocean color and biogeochemistry (CBIOMES)

Contact: Dr Shubha Sathyendranath

Earth observation of ocean color remains our only window into the pelagic ecosystem at synoptic scales. It is a rich source of data, and...

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Recent publications

  • Mayers, KMJ; Poulton, AJ; Daniels, CJ; Wells, SR; Woodward, EMS ; Tarran, GA; Widdicombe, S; Atkinson, A; Giering, SLC. 2018 Growth and mortality of coccolithophores during spring in a temperate Shelf Sea (Celtic Sea, April 2015). Progress in Oceanography. 10.1016/j.pocean.2018.02.024
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  • Lange, PK; Brewin, RJW; Dall’Olmo, G ; Tarran, GA; Sathyendranath, S; Zubkov, MV; Bouman, HA. 2018 Scratching beneath the surface: a model to predict the vertical distribution of Prochlorococcus using remote sensing.. Remote Sensing, 10, rs10060847. 847-866. /10.3390/rs10060847
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  • García-Martín, EE; Daniels, CJ; Davidson, K; Davis, CE; Mahaffey, C; Mayers, KMJ; McNeill, S; Mitchell, E; Poulton, AJ; Purdie, DA; Tarran, GA; Robinson, C. 2017 Seasonal changes in plankton respiration and bacterial metabolism in a temperate Shelf Sea.. Progress in Oceanography. 10.1016/j.pocean.2017.12.002 (In Press)
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  • Poulton, AJ; Davis, CE; Daniels, CJ; Mayers, KMJ; Harris, C; Tarran, GA; Widdicombe, CE; Woodward, EMS. 2017 Seasonal phosphorus and carbon dynamics in a temperate shelf sea (Celtic Sea): uptake, partitioning, release, turnover and stoichiometry.. Progress in Oceanography. https://doi.org/10.1016/j.pocean.2017.11.001 (In Press)
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  • García-Martín, EE; Daniels, CJ; Davidson, K; Lozano, J; Mayers, KMJ; McNeill, S; Mitchell, E; Poulton, AJ; Purdie, DA; Tarran, GA; Whyte, C; Robinson, C. 2017 Plankton community respiration and bacterial metabolism in a North Atlantic Shelf Sea during spring bloom development (April 2015) [in special issue: UK Shelf Seas Biogeochemistry] Progress in Oceanography. 10, pp. 10.1016/j.pocean.2017.11.002
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  • Rees, AP ; Nightingale, PD; Poulton, AJ; Smyth, TJ; Tarran, GA; Tilstone, GH. 2017 The Atlantic Meridional Transect Programme (1995 – 2016). Progress in Oceanography. 10.1016/j.pocean.2017.05.004
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Selected key publications

Tarran, G.A. and Bruun, J.T. (2015). Nanoplankton and picoplankton in the Western English Channel: seasonality and variability from 2007-2013. Progress in Oceanography (Part B), 137,446-455. doi:10.1016/j.pocean.2015.04.024

Schattenhofer, M., B.M. Fuchs, R. Amann, M.V. Zubkov, G.A. Tarran & J. Pernthaler (2009). Latitudinal distribution of prokaryotic picoplankton populations in the Atlantic Ocean. Environmental Microbiology, doi:10.1111/j.1462-2920.2009.01929.x.

Mawji, E., Gledhill, M., Milton, J.A., Tarran, G.A., Ussher, S., Thompson, A., Wolff, G.A., Worsfold, P.J. and Eric P. Achterberg, E.P. (2008). Hydroxamate siderophores: occurrence and importance in the Atlantic Ocean. Environmental Science and Technology 42 (23), 8675-8680.

Zubkov, M.V. and Tarran, G.A. (2008). High bacterivory by the smallest phytoplankton in the temperate North Atlantic Ocean. Nature, 455, 224-226. doi:10.1038/nature07236

Tarran, G.A., Heywood, J.L. and Zubkov, M.V. (2006) Latitudinal changes in the standing stocks of eukaryotic nano- and picophytoplankton in the Atlantic Ocean. Deep-Sea Research II, 53(14-16): 1516-1529.

Zubkov, M. V., Sleigh, M. A., Tarran, G.A., Burkill, P. H. and Leakey, R. J. L. (1998) Picoplanktonic community structure on an Atlantic transect from 50oN to 50oS. Deep-Sea Research I, 45: 1339-1355.

Other activities

ICES Working Group on Phytoplankton and Microbial Ecology