People > Dr Glen Tarran

Dr Glen Tarran

Marine microbial ecologist



Contact Details

+44 (0)1752 633100 (switchboard)

gat02/08/2021 19:10:14@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.

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 100 peer-reviewed research papers and book chapters and has also published many data sets.

Projects

PETRA
Pathways and emissions of climate-relevant trace gases in a changing Arctic Ocean (PETRA)

Contact: Dr Andy Rees

The Arctic Ocean is a rapidly changing environment, with rising temperatures leading to an ongoing decline in sea ice and shifting conditions for...

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...

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Selected key publications

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 50°N to 50°S. Deep-Sea Research I, 45: 1339-1355. doi: 10.1016/S0967-0637(98)00015-6

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. doi: 10.1016/j.dsr2.2006.05.004

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

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. doi: 10.1021/es801884r

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

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

Other activities

ICES Working Group on Phytoplankton and Microbial Ecology