Professor Graham Underwood
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Email
gjcu@essex.ac.uk -
Telephone
+44 (0) 1206 873337
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Location
3SW.5.33A, Colchester Campus
Profile
Biography
I am a marine and freshwater biologist, particularly interested in the interactions between microbes (algae - mainly diatoms, and bacteria), dissolved organic matter (DOC, DOM), nutrient cycling, biogeochemistry, and responses to environmental pressures (climate change, pollution). My research interests range from microbial diversity and function, primary production and organic carbon fluxes, through to whole catchment functioning, natural capital and ecosystem services, and approaches to seascape restoration. With a particular focus on estuaries and coasts, I am working with a wide body of partners (Government, statutory and environment NGOs) on how we can create sustainable and resilient coastal seascapes in the face of climate change, biodiversity crisis and sea level rise pressures.
Qualifications
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D.Phil University of Sussex, (1989)
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BSc. Hons. 1st Class, Zoology with Microbiology University of Reading, (1986)
Appointments
糖心Vlog
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Executive Dean, Faculty of Science and Health, 糖心Vlog (2013 - 2019)
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Acting Executive Dean, Faculty of Science and Health, 糖心Vlog, 2024 - 2025, 糖心Vlog (1/8/2024 - 31/7/2025)
Other academic
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Professor, School of Life Sciences, 糖心Vlog (1992 - present)
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Senior Fellow, Zukunftkolleg, University of Konstanz (1/7/2021 - present)
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Chair, NERC Research Committee, Natural Environment Research Council (1/11/2019 - 31/12/2022)
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Chair, UK Blue Carbon Evidence Partnership, Department for Environment Food and Rural Affairs (1/3/2023 - 31/3/2025)
Research and professional activities
Research interests
Microalgae (diatom) biofilm ecology and physiology
Estuarine ecology and functioning (fish, shellfish and invertebrates)
sea ice microbiology and organic carbon cycling
The ecology of microphytobenthos (benthic microalgae) in coastal ecosystems,
Current research
Salt marsh and estuarine ecology,looking at marsh fragmentation, food resources and habitat use
The importance of water quality and environmental factors in the ecology of , and management measures to enhance, the biodiversity and ecosystem functioning of coastal seascapes.
Ecology of microalgal biofilms
Managed realignment, saltmarsh restoration and rising sea levels
Conferences and presentations
Jan 2019 Thin films of Life, and the challenges of changing environments.
Keynote presentation, British Phycological Society, Presidential lecture., Plymouth, Plymouth, United Kingdom, 5/1/2020
Oct 2019 鈥� Invited speaker. Local impact of climate change on coastal areas.
Invited presentation, Environmental Agency Regional Flood and Coastal Committee RFCC symposium. Norwich, Norwich, 1/10/2019
Oct 2017 鈥� Invited speaker. Understanding the value of natural capital on our coast and estuaries
Invited presentation, Suffolk Coast Forum Annual conference, 1/11/2017
Invited speaker. Carbon fluxes in microalgal biofilms: the flows through dissolved organic matter and extracellular polymeric substances (EPS).
Brit. Phyc. Soc. Annual Meeting, School of Ocean Sciences, Bangor, United Kingdom, 5/1/2017
Nov. 2013. Invited speaker.
DOM in freshwater and coastal systems, International workshop, Finland, Tvarminne Zoological Station,, Helsinki, Finland, 1/11/2013
August 2012. Plenary Speaker. International Diatom Symposium, Ghent, Belgium.
Ghent, Belgium, 2012
Jun 2011 Plenary speaker. International Symposium on the trophic significant of MPB biofilms. La Rochelle, France.
La Rochelle, France, 2011
Jan 2011 British Phycologcial Society, invited lecture. Special session Algae in estuaries
2011
Sept 2010 Plenary Lecturer: Coastal Diatoms indicators or just opportunists. All at Sea? - synergies between past and present coastal processes & ecology, 9-10th Sept 2010, University of Loughborough. U.K.
Loughborough, United Kingdom, 2010
Sept 2009. Society of General Microbiology, Herriot Watt, Scotland. Invited Lecture, Polar Microbiology HW14. Exopolymer (EPS) production by diatoms in sea ice.
Edinburgh, United Kingdom, 2009
July 2007. European Phycological Congress, Oviedo, Spain. Invited lecture: Response of diatoms to light and salinity stress.
Oviedo, Spain, 2007
April 2006 North East Algal Symposium, New York, USA Plenary speaker,. Biofilms.
New York, United States, 2006
June 2005 American Society for Limnology and Oceanography meeting, Santiago, Spain, June 19-24. Invited keynote speaker, special session Biogeochemistry of tidal flats.June 2005,
Santiago, Spain, 2005
April 2005 European Geophysical Union Congress, Vienna, 25-29th April 2005. Invited keynote speaker in a special Biofilms session, co-organised by the biogeochemistry section of the EGU and the International Society for Microbial Ecology. Cell-specific activity, photosynthesis and exopolymer dynamics in transient marine diatom biofilms.
Vienna, Austria, 2005
Aug 2003, Invited speaker, Microphytobenthos functioning colloquium, Royal Netherlands Academy of Arts and Sciences, Amsterdam.
Amsterdam, Netherlands, 2003
Teaching and supervision
Current teaching responsibilities
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Professional skills for Ecological and Marine Scientists (BS257)
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Estuarine and Coastal Ecology Field Module (Assessed in Following Year) (BS417)
Current supervision
Previous supervision
Degree subject: Environmental Biology
Degree type: Doctor of Philosophy
Awarded date: 3/11/2020
Degree type: Doctor of Philosophy
Awarded date: 4/2/2019
Degree subject: Microbiology
Degree type: Doctor of Philosophy
Awarded date: 2/1/2018
Degree subject: Biological Sciences
Degree type: Doctor of Philosophy
Awarded date: 27/6/2017
Degree subject: Biological Sciences
Degree type: Doctor of Philosophy
Awarded date: 1/6/2017
Degree subject: Biological Sciences
Degree type: Doctor of Philosophy
Awarded date: 16/5/2016
Degree subject: Environmental Sciences
Degree type: Master of Science (by Dissertation)
Awarded date: 24/1/2011
Publications
Journal articles (113)
Lapointe, A., Kocademir, M., Bergman, P., Ragupathy, IC., Laumann, M., Underwood, GJC., Zumbusch, A., Spiteller, D. and Kroth, PG., (2024). . Journal of Phycology. 60 (3), 624-638
Slee, NJD., Gardiner, T. and Underwood, GJC., (2023). . Estuarine, Coastal and Shelf Science. 294, 108544-108544
Ye, N., Han, W., Toseland, A., Wang, Y., Fan, X., Xu, D., van Oosterhout, C., Aslam, SN., Barry, K., Beszteri, B., Brussaard, C., Clum, A., Copeland, A., Daum, C., Duncan, A., Eloe-Fadrosh, E., Fong, A., Foster, B., Foster, B., Ginzburg, M., Huntemann, M., Ivanova, NN., Kyrpides, NC., Martin, K., Moulton, V., Mukherjee, S., Palaniappan, K., Reddy, TBK., Roux, S., Schmidt, K., Strauss, J., Timmermans, K., Tringe, SG., Underwood, GJC., Valentin, KU., van de Poll, WH., Varghese, N., Grigoriev, IV., Tagliabue, A., Zhang, J., Zhang, Y., Ma, J., Qiu, H., Li, Y., Zhang, X. and Mock, T., (2022). The role of zinc in the adaptive evolution of polar phytoplankton. Nature Ecology & Evolution. 6 (7), 965-978
Clark, DR., Underwood, GJC., McGenity, TJ. and Dumbrell, AJ., (2021). . Global Ecology and Biogeography. 30 (4), 811-825
Redzuan, NS. and Underwood, GJC., (2021). . Estuarine, Coastal and Shelf Science. 251, 107190-107190
Allison, S., Hardy, M., Hayward, K., Cameron, TC. and Underwood, GJC., (2020). . The Journal of the Marine Biological Association of the United Kingdom. 100 (1), 27-36
Legge, O., Johnson, M., Hicks, N., Jickells, T., Diesing, M., Aldridge, J., Andrews, J., Artioli, Y., Bakker, DCE., Burrows, MT., Carr, N., Cripps, G., Felgate, SL., Fernand, L., Greenwood, N., Hartman, S., Kr枚ger, S., Lessin, G., Mahaffey, C., Mayor, DJ., Parker, R., Queir贸s, AM., Shutler, JD., Silva, T., Stahl, H., Tinker, J., Underwood, GJC., Van Der Molen, J., Wakelin, S., Weston, K. and Williamson, P., (2020). . Frontiers in Marine Science. 7
Redzuan, NS. and Underwood, GJC., (2020). . Frontiers in Marine Science. 7
Passarelli, C., Cui, X., Valsami-Jones, E. and Underwood, GJC., (2020). . Environmental Science: Nano. 7 (10), 3020-3035
Booty, JM., Underwood, GJC., Parris, A., Davies, RG. and Tolhurst, TJ., (2020). . Frontiers in Marine Science. 7
Booty, JM., Underwood, GJC., Parris, A., Davies, RG. and Tolhurst, TJ., (2020). Corrigendum: Shorebirds Affect Ecosystem Functioning on an Intertidal Mudflat. Frontiers in Marine Science. 7
Underwood, G., Michel, C., Meisterhans, G., Niemi, A., Belzile, C., Witt, M., Dumbrell, AJ. and Koch, BP., (2019). . Nature Climate Change. 9 (2), 170-176
Alzarhani, AK., Clark, DR., Underwood, GJC., Ford, H., Cotton, TEA. and Dumbrell, A., (2019). . ISME Journal. 13 (5), 1330-1344
Aslam, SN., Strauss, J., Thomas, DN., Mock, T. and Underwood, GJC., (2018). . The ISME Journal. 12 (5), 1237-1251
Cousins, LJ., Cousins, MS., Gardiner, T. and Underwood, GJC., (2017). . Ocean and Coastal Management. 143, 96-104
Boh贸rquez, J., McGenity, TJ., Papaspyrou, S., Garc铆a-Robledo, E., Corzo, A. and Underwood, GJC., (2017). . Frontiers in Microbiology. 8 (245), 245-
Clark, DR., Mathieu, M., Mourot, L., Underwood, GJC., Dufoss茅, L., Dumbrell, AJ. and McGenity, TJ., (2017). . Global Ecology and Biogeography. 26 (12), 1435-1446
Osburn, CL., Anderson, NJ., Stedmon, CA., Giles, ME., Whiteford, EJ., McGenity, TJ., Dumbrell, AJ. and Underwood, GJC., (2017). . Journal of Geophysical Research: Biogeosciences. 122 (12), 3431-3445
Aslam, SN., Dumbrell, AJ., Sabir, JS., Mutwakil, MHZ., Baeshen, MMN., Abo鈥怉ba, SEM., Clark, DR., Yates, SA., Baeshen, NA., Underwood, GJC. and McGenity, TJ., (2016). . Environmental Microbiology. 18 (12), 5048-5062
Aslam, SN., Michel, C., Niemi, A. and Underwood, GJC., (2016). . Limnology and Oceanography. 61 (3), 919-937
McMellor, S. and Underwood, GJC., (2014). . Marine Pollution Bulletin. 81 (1), 200-209
Steele, DJ., Franklin, DJ. and Underwood, GJC., (2014). . Biofouling. 30 (8), 987-998
Van Colen, C., Underwood, GJC., Ser么dio, J. and Paterson, DM., (2014). . Journal of Sea Research. 92, 2-5
Poulin, M., Underwood, GJC. and Michel, C., (2014). . Diatom Research. 29 (2), 213-221
Cousins, LJ., McMellor, S., Underwood, GJC. and Hepburn, LJ., (2014). . In Practice. 83, 24-27
(2014). Underwood, Prof. Graham James Charles, (born 31 March 1964), Professor of Marine and Freshwater Biology, since 2004, and Executive Dean, Faculty of Science and Health, since 2013, 糖心Vlog
McKew, BA., Dumbrell, AJ., Taylor, JD., McGenity, TJ. and Underwood, GJC., (2013). . FEMS Microbiology Ecology. 84 (3), 495-509
Chronopoulou, P., Fahy, A., Coulon, F., Pa茂ss茅, S., Go帽i鈥怳rriza, M., Peperzak, L., Acu帽a Alvarez, L., McKew, BA., Lawson, T., Timmis, KN., Duran, R., Underwood, GJC. and McGenity, TJ., (2013). . Environmental Microbiology. 15 (1), 242-252
Taylor, JD., McKew, BA., Kuhl, A., McGenity, TJ. and Underwood, GJC., (2013). . Limnology and Oceanography. 58 (4), 1463-1480
Underwood, GJC., Aslam, SN., Michel, C., Niemi, A., Norman, L., Meiners, KM., Laybourn-Parry, J., Paterson, H. and Thomas, DN., (2013). . Proceedings of the National Academy of Sciences. 110 (39), 15734-15739
M眉ller, S., V盲h盲talo, AV., Stedmon, CA., Granskog, MA., Norman, L., Aslam, SN., Underwood, GJC., Dieckmann, GS. and Thomas, DN., (2013). . Marine Chemistry. 155, 148-157
Coulon, F., Chronopoulou, P-M., Fahy, A., Pa茂ss茅, S., Go帽i-Urriza, M., Peperzak, L., Acu帽a Alvarez, L., McKew, BA., Brussaard, CPD., Underwood, GJC., Timmis, KN., Duran, R. and McGenity, TJ., (2012). . Applied and Environmental Microbiology. 78 (10), 3638-3648
Green, BC., Smith, DJ., Grey, J. and Underwood, GJC., (2012). . Oecologia. 168 (1), 245-255
Aslam, SN., Cresswell鈥怣aynard, T., Thomas, DN. and Underwood, GJC., (2012). . Journal of Phycology. 48 (6), 1494-1509
McLachlan, DH., Underwood, GJC., Taylor, AR. and Brownlee, C., (2012). . Journal of Phycology. 48 (3), 675-681
Green, BC., Smith, DJ. and Underwood, GJC., (2012). . Marine Ecology Progress Series. 466, 177-192
Aslam, SN., Underwood, GJC., Kaartokallio, H., Norman, L., Autio, R., Fischer, M., Kuosa, H., Dieckmann, GS. and Thomas, DN., (2012). . Polar Biology. 35 (5), 661-676
Suphan, S., Peerapornpisal, Y. and Underwood, GJC., (2012). Benthic diatoms of Mekong River and its tributaries in northern and north-eastern Thailand and their application to water quality monitoring. Maejo International Journal of Science and Technology. 6 (1), 28-46
McKew, BA., Taylor, JD., McGenity, TJ. and Underwood, GJC., (2011). . The ISME Journal. 5 (1), 30-41
Waring, J., Klenell, M., Bechtold, U., Underwood, GJC. and Baker, NR., (2010). . Journal of Phycology. 46 (6), 1206-1217
Underwood, GJC., (2010). . Marine Pollution Bulletin. 61 (1-3), 83-91
Hinojosa-Garro, D., Mason, CF. and Underwood, GJC., (2010). . Fundamental and Applied Limnology. 177 (1), 19-37
Underwood, GJC., Fietz, S., Papadimitriou, S., Thomas, DN. and Dieckmann, GS., (2010). . Marine Ecology Progress Series. 404, 1-19
Chin, JP., Megaw, J., Magill, CL., Nowotarski, K., Williams, JP., Bhaganna, P., Linton, M., Patterson, MF., Underwood, GJC., Mswaka, AY. and Hallsworth, JE., (2010). . Proceedings of the National Academy of Sciences. 107 (17), 7835-7840
Underwood, GJC., (2010). Microphytobenthos and phytoplankton in the Severn estuary, UK: Present situation and possible consequences of a tidal energy barrage. Marine Pollution Bulletin. 61 (1-3, S), 83-91
McLachlan, DH., Brownlee, C., Taylor, AR., Geider, RJ. and Underwood, GJC., (2009). . Journal of Phycology. 45 (3), 592-599
Green, BC., Smith, DJ., Earley, SE., Hepburn, LJ. and Underwood, GJC., (2009). . Estuarine, Coastal and Shelf Science. 85 (2), 247-256
Hofmann, T., Hanlon, ARM., Taylor, JD., Ball, AS., Osborn, AM. and Underwood, GJC., (2009). . Marine Ecology Progress Series. 379, 45-58
Bellinger, BJ., Underwood, GJC., Ziegler, SE. and Gretz, MR., (2009). . Aquatic Microbial Ecology. 55 (2), 169-187
Apoya-Horton, MD., Underwood, GJC. and Gretz, MR., (2009). . Journal of Phycology. 45, creators-Underwood=3AGraham_J_C=3A=3A
Hinojosa-Garro, D., Mason, CF. and Underwood, GJC., (2008). . Fundamental and Applied Limnology. 172 (4), 325-337
WARING, JEN., BAKER, NR. and UNDERWOOD, GJC., (2007). Responses of estuarine intertidal microphytobenthic algal assemblages to enhanced ultraviolet B radiation. Global Change Biology. 13 (7), 1398-1413
Haynes, K., Hofmann, TA., Smith, CJ., Ball, AS., Underwood, GJC. and Osborn, AM., (2007). Diatom-Derived Carbohydrates as Factors Affecting Bacterial Community Composition in Estuarine Sediments. Applied and Environmental Microbiology. 73 (19), 6112-6124
Thornton, DCO., Dong, LF., Underwood, GJC. and Nedwell, DB., (2007). Sediment聳water inorganic nutrient exchange and nitrogen budgets in the Colne Estuary, UK. Marine Ecology Progress Series. 337, 63-77
Nizzoli, D., Bartoli, M., Cooper, M., Welsh, DT., Underwood, GJC. and Viaroli, P., (2007). Implications for oxygen, nutrient fluxes and denitrification rates during the early stage of sediment colonisation by the polychaete Nereis spp. in four estuaries. Estuarine, Coastal and Shelf Science. 75 (1-2), 125-134
WARING, JEN., UNDERWOOD, GJC. and BAKER, NR., (2006). Impact of elevated UV鈥怋 radiation on photosynthetic electron transport, primary productivity and carbon allocation in estuarine epipelic diatoms. Plant, Cell & Environment. 29 (4), 521-534
Hanlon, ARM., Bellinger, B., Haynes, K., Xiao, G., Hofmann, TA., Gretz, MR., Ball, AS., Osborn, AM. and Underwood, GJC., (2006). Dynamics of extracellular polymeric substance (EPS) production and loss in an estuarine, diatom-dominated, microalgal biofilm over a tidal emersio-immersion period. Limnology and Oceanography. 51 (1), 79-93
Abdullahi, AS., Underwood, GJC. and Gretz, MR., (2006). EXTRACELLULAR MATRIX ASSEMBLY IN DIATOMS (BACILLARIOPHYCEAE). V. ENVIRONMENTAL EFFECTS ON POLYSACCHARIDE SYNTHESIS IN THE MODEL DIATOM, PHAEODACTYLUM TRICORNUTUM1. Journal of Phycology. 42 (2), 363-378
Schuwerack, P-MM., Jones, PW., Underwood, GJC. and Barnes, RSK., (2006). Gender and Species Differences in Sentinel Crabs (Macrophthalmus) Feeding on an Indonesian Mudflat. Journal of Crustacean Biology. 26 (2), 119-123
Apoya鈥怘orton, MD., Yin, L., Underwood, GJC. and Gretz, MR., (2006). MOVEMENT MODALITIES AND RESPONSES TO ENVIRONMENTAL CHANGES OF THE MUDFLAT DIATOM CYLINDROTHECA CLOSTERIUM (BACILLARIOPHYCEAE)1. Journal of Phycology. 42 (2), 379-390
Hanlon, ARM., Bellinger, B., Haynes, K., Xiao, G., Hofmann, TA., Gretz, MR., Ball, AS., Osborn, AM. and Underwood, GJC., (2006). Dynamics of extracellular polymeric substance (EPS) production and loss in an estuarine, diatom-dominated, microalgal biofilm over a tidal emersion-immersion period. Limnology and Oceanography. 51 (1 I), 79-93
Underwood, GJC., Perkins, RG., Consalvey, MC., Hanlon, ARM., Oxborough, K., Baker, NR. and Paterson, DM., (2005). Patterns in microphytobenthic primary productivity: Species鈥恠pecific variation inmigratory rhythms and photosynthetic efficiency in mixed鈥恠pecies biofilms. Limnology and Oceanography. 50 (3), 755-767
Bellinger, BJ., Abdullahi, AS., Gretz, MR. and Underwood, GJC., (2005). Biofilm polymers: relationship between carbohydrate biopolymers from estuarine mudflats and unialgal cultures of benthic diatoms. Aquatic Microbial Ecology. 38 (2), 169-180
Consalvey, M., Perkins, RG., Paterson, DM. and Underwood, GJC., (2005). PAM FLUORESCENCE: A BEGINNERS GUIDE FOR BENTHIC DIATOMISTS. Diatom Research. 20 (1), 1-22
Underwood, GJC., Boulcott, M., Raines, CA. and Waldron, K., (2004). . Journal of Phycology. 40 (2), 293-304
Consalvey, M., Paterson, DM. and Underwood, GJC., (2004). THE UPS AND DOWNS OF LIFE IN A BENTHIC BIOFILM: MIGRATION OF BENTHIC DIATOMS. Diatom Research. 19 (2), 181-202
Consalvey, M., Jesus, B., Perkins, RG., Brotas, V., Underwood, GJC. and Paterson, DM., (2004). Monitoring Migration and Measuring Biomass in Benthic Biofilms: The Effects of Dark/far-red Adaptation and Vertical Migration on Fluorescence Measurements. Photosynthesis Research. 81 (1), 91-101
Mason, CF., Underwood, GJC., Baker, NR., Davey, PA., Davidson, I., Hanlon, A., Long, SP., Oxborough, K., Paterson, DM. and Watson, A., (2003). The role of herbicides in the erosion of salt marshes in eastern England. Environmental Pollution. 122 (1), 41-49
Underwood, GJC. and Paterson, DM., (2003). The importance of extracellular carbohydrate productionby marine epipelic diatoms. Advances in Botanical Research. 40, 183-240
Nedwell, DB., Sage, AS. and Underwood, GJC., (2002). Rapid assessment of macro algal cover on intertidal sediments in a nutrified estuary. Science of The Total Environment. 285 (1-3), 97-105
Dong, LF., Nedwell, DB., Underwood, GJC., Thornton, DCO. and Rusmana, I., (2002). Nitrous Oxide Formation in the Colne Estuary, England: the Central Role of Nitrite. Applied and Environmental Microbiology. 68 (3), 1240-1249
Nedwell, DB., Dong, LF., Sage, A. and Underwood, GJC., (2002). Variations of the Nutrients Loads to the Mainland U.K. Estuaries: Correlation with Catchment Areas, Urbanization and Coastal Eutrophication. Estuarine, Coastal and Shelf Science. 54 (6), 951-970
Perkins, RG. and Underwood, GJC., (2002). Partial recovery of a eutrophic reservoir through managed phosphorus limitation and unmanaged macrophyte growth. Hydrobiologia. 481 (1/3), 75-87
UNDERWOOD, GJC., (2002). Adaptations of tropical marine microphytobenthic assemblages along a gradient of light and nutrient availability in Suva Lagoon, Fiji. European Journal of Phycology. 37 (3), 449-462
Kocum, E., Underwood, GJC. and Nedwell, DB., (2002). Simultaneous measurement of phytoplanktonic primary production, nutrient and light availability along a turbid, eutrophic UK east coast estuary (the Colne Estuary). Marine Ecology Progress Series. 231, 1-12
Perkins, RG., Oxborough, K., Hanlon, ARM., Underwood, GJC. and Baker, NR., (2002). Can chlorophyll fluorescence be used to estimate the rate of photosynthetic electron transport within microphytobenthic biofilms?. Marine Ecology Progress Series. 228, 47-56
Thornton, DCO., Dong, LF., Underwood, GJC. and Nedwell, DB., (2002). Factors affecting microphytobenthic biomass, species composition and production in the Colne Estuary (UK). Aquatic Microbial Ecology. 27 (3), 285-300
Kocum, E., Nedwell, DB. and Underwood, GJC., (2002). Regulation of phytoplankton primary production along a hypernutrified estuary. Marine Ecology Progress Series. 231, 13-22
Perkins, RG. and Underwood, GJC., (2001). The potential for phosphorus release across the sediment鈥搘ater interface in an eutrophic reservoir dosed with ferric sulphate. Water Research. 35 (6), 1399-1406
Perkins, RG., Underwood, GJC., Brotas, V., Snow, GC., Jesus, B. and Ribeiro, L., (2001). Responses of microphytobenthos to light: primary production and carbohydrate allocation over an emersion period. Marine Ecology Progress Series. 223, 101-112
Smith, DJ. and Underwood, GJC., (2000). The production of extracellular carbohydrates by estuarine benthic diatoms: the effects of growth phase and light and dark treatment. Journal of Phycology. 36 (2), 321-333
Dong, LF., Thornton, DCO., Nedwell, DB. and Underwood, GJC., (2000). Denitrification in sediments of the River Colne estuary, England. Marine Ecology Progress Series. 203, 109-122
Oxborough, K., Hanlon, ARM., Underwood, GJC. and Baker, NR., (2000). In vivo estimation of the photosystem II photochemical efficiency of individual microphytobenthic cells using high鈥恟esolution imaging of chlorophyll a fluorescence. Limnology and Oceanography. 45 (6), 1420-1425
Perkins, R., (2000). Gradients of chlorophyll a and water chemistry along an eutrophic reservoir with determination of the limiting nutrient by in situ nutrient addition. Water Research. 34 (3), 713-724
Underwood, G. and Provot, L., (2000). Determining the environmental preferences of four estuarine epipelic diatom taxa: growth across a range of salinity, nitrate and ammonium conditions. European Journal of Phycology. 35 (2), 173-182
Wulff, A., W盲ngberg, SK., Sundb盲ck, K., Nilsson, C. and Underwood, GJC., (2000). Effects of UVB radiation on a marine microphytobenthic community growing on a sand鈥恠ubstratum under different nutrient conditions. Limnology and Oceanography. 45 (5), 1144-1152
(2000). Gradients of chlorophyll a and water chemistry along an eutrophic reservoir with determination of the limiting nutrient by in situ nutrient addition. R.G. Perkins and G.J.C. Underwood. [Water Research 1999; 34(3), 713鈥�724]. Water Research. 34 (14), 3690-3690
Perkins, RG. and Underwood, GJC., (2000). Gradients of chlorophyll a and water chemistry along an eutrophic reservoir with determination of the limiting nutrient by in situ nutrient addition (vol 34, pg 713, 1999). WATER RESEARCH. 34 (14), 3690-3690
UNDERWOOD, GJC. and PROVOT, L., (2000). Determining the environmental preferences of four estuarine epipelic diatom taxa: growth across a range of salinity, nitrate and ammonium conditions. European Journal of Phycology. 35 (2), 173-182
Thornton, DCO., Underwood, GJC. and Nedwell, DB., (1999). Effect of illumination and emersion period on the exchange of ammonium across the estuarine sediment-water interface. Marine Ecology Progress Series. 184, 11-20
Underwood, GJC., Nilsson, C., Sundb盲ck, K. and Wulff, A., (1999). SHORT鈥怲ERM EFFECTS OF UVB RADIATION ON CHLOROPHYLL FLUORESCENCE, BIOMASS, PIGMENTS, AND CARBOHYDRATE FRACTIONS IN A BENTHIC DIATOM MAT. Journal of Phycology. 35 (4), 656-666
Underwood, GJC. and Kromkamp, J., (1999). Primary Production by Phytoplankton and Microphytobenthos in Estuaries. ADVANCES IN ECOLOGICAL RESEARCH, VOL 29. 29 (C), 93-153
Underwood, GJC. and Smith, DJ., (1998). Predicting Epipelic Diatom Exopolymer Concentrations in Intertidal Sediments from Sediment Chlorophyll a. Microbial Ecology. 35 (2), 116-125
Smith, DJ. and Underwood, GJC., (1998). Exopolymer production by intertidal epipelic diatoms. Limnology and Oceanography. 43 (7), 1578-1591
Underwood, G., Phillips, J. and Saunders, K., (1998). Distribution of estuarine benthic diatom species along salinity and nutrient gradients. European Journal of Phycology. 33 (2), 173-183
Underwood, GJC. and Smith, DJ., (1998). In situ measurements of exopolymer production by intertidal epipelic diatom-dominated biofilms in the Humber estuary. Geological Society, London, Special Publications. 139 (1), 125-134
Ellison, JC., (1998). Natural history of Bramble Cay, Torres Strait. Atoll Research Bulletin. 455 (567), 1-31
UNDERWOOD, GJC., PHILLIPS, J. and SAUNDERS, K., (1998). Distribution of estuarine benthic diatom species along salinity and nutrient gradients. European Journal of Phycology. 33 (2), 173-183
Sterrenburg, FAS. and Underwood, GJC., (1997). Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). The marine "Gyrosigma spenceri" records: Gyrosigma limosum Sterrenburg et Underwood nov. sp.. Proceedings of the Academy of Natural Sciences of Philadelphia. 148, 165-169
Underwood, GJC., (1997). Microalgal Colonization in a Saltmarsh Restoration Scheme. Estuarine, Coastal and Shelf Science. 44 (4), 471-481
Underwood, GJC., Paterson, DM. and Parkes, RJ., (1995). The measurement of microbial carbohydrate exopolymers from intertidal sediments. Limnology and Oceanography. 40 (7), 1243-1253
Underwood, GJC. and Yallop, ML., (1994). NAVICULA PARGEMINASP. NOV.鈥擜 SMALL EPIPELIC SPECIES FROM THE SEVERN ESTUARY, U.K.. Diatom Research. 9 (2), 473-478
Underwood, GJC., (1994). SEASONAL AND SPATIAL VARIATION IN EPIPELIC DIATOM ASSEMBLAGES IN THE SEVERN ESTUARY. Diatom Research. 9 (2), 451-472
Underwood, GJC. and Paterson, DM., (1993). Recovery of intertidal benthic diatoms after biocide treatment and associated sediment dynamics. Journal of the Marine Biological Association of the United Kingdom. 73 (1), 25-45
Underwood, GJC. and Paterson, DM., (1993). Seasonal changes in diatom biomass, sediment stability and biogenic stabilization in the Severn Estuary. Journal of the Marine Biological Association of the United Kingdom. 73 (4), 871-887
UNDERWOOD, GJC. and PATERSON, DM., (1993). RECOVERY OF INTERTIDAL BENTHIC DIATOMS AFTER BIOCIDE TREATMENT AND ASSOCIATED SEDIMENT DYNAMICS. JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM. 73 (1), 25-45
UNDERWOOD, GJC. and PATERSON, DM., (1993). SEASONAL-CHANGES IN DIATOM BIOMASS, SEDIMENT STABILITY AND BIOGENIC STABILIZATION IN THE SEVERN ESTUARY. JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM. 73 (4), 871-887
Underwood, GJC., Thomas, JD. and Baker, JH., (1992). An experimental investigation of interactions in snail-macrophyte-epiphyte systems. Oecologia. 91 (4), 587-595
Paterson, DM. and Underwood, GJC., (1992). The mudflat ecosystem and epipelic diatoms. The coast of Avon, 74-82
Underwood, GJC., (1991). Note: Colonization and invasion of leaves of the aquatic macrophyteCeratophyllum demersum L. by epiphytic bacteria. Microbial Ecology. 21 (1), 267-275
UNDERWOOD, GJC., (1991). Growth enhancement of the macrophyte Ceratophyllum demersum in the presence of the snail Planorbis planorbis: the effect of grazing and chemical conditioning. Freshwater Biology. 26 (2), 325-334
Underwood, GJC. and Baker, JH., (1991). The effect of various aquatic bacteria on the growth and senescence of duckweed (Lemna minor). Journal of Applied Bacteriology. 70 (3), 192-196
UNDERWOOD, GJC. and THOMAS, JD., (1990). Grazing interactions between pulmonate snails and epiphytic algae and bacteria. Freshwater Biology. 23 (3), 505-522
Book chapters (4)
Underwood, G., (2024). . In: Diatom Photosynthesis: From High Value Molecules to Primary Production. Editors: Goessling, J., Ser么dio, J. and Lavaud, J., . Wiley-Scrivener. 303- 326. 9781119842088
Underwood, GJC., Dumbrell, AJ., McGenity, TJ., McKew, BA. and Whitby, C., (2022). . In: The Marine Microbiome. Editors: Stal, LJ. and Cretoiu, MS., . Springer International Publishing. 479- 534. 9783030903824
Nedwell, DB., Underwood, GJC., McGenity, TJ., Whitby, C. and Dumbrell, AJ., (2016). . In: Advances in Ecological Research. Elsevier. 227- 281. 978-0-08-100935-2
Underwood, GJC., (2001). Microphytobenthos. In: Encyclopedia of Ocean Sciences. Elsevier. 807- 814. 9780123744739
Conferences (3)
LWarren, S., Mckew, BA., Whitby, C. and Underwood, GJC., (2015). LIGHT AND DISSOLVED ORGANIC CARBON DRIVE INTERACTIONS WITHIN RIVER MICROPHYTOBENTHIC COMMUNITIES
Underwood, GJC. and Aslam, SN., (2015). ADAPTATION OF DIATOM EXTRACELLULAR POLYMERIC SUBSTANCE (EPS) PRODUCTION IN RESPONSE TO TEMPERATURE AND SALINITY STRESS IN SEA ICE ENVIRONMENTS
Paterson, DM., Perkins, R., Consalvey, M. and Underwood, GJC., (2003). Ecosystem function, cell micro-cycling and the structure of transient biofilms.
Grants and funding
2024
Roberts Bank Terminal 2 project. Western sandpiper follow-up program technical input
Vancouver Frazer Port Authority
Study of Salt Marsh Restoration Approaches
NERC Centre for Ecology and Hydrology
Advancing Resilience and Innovation for Sustainability in the East of England
Economic and Social Research Council
Blackwater Colne Estuaries Natural Capital Assessment
Department for Environment Food & Rural Affairs
MSD Salt Marsh Restoration in the Stour and Orwell estuaries
Harwich Haven Authority
Seabed Carbon Review Consultancy
Centre for Environment Fisheries and Aquaculture Science
Seasonal seagrass growth - 糖心Vlog region
Environment Agency
2023
Engaging with communities in Jaywick around issues of climate change
INSTAR
To assess the potential for restoration of saltmarsh, seagrass and native oyster beds at Sandwich and Pegwell Bay NNR
EXO Environmental Ltd
REWilding and restoration inteRtIdal sedimenT Ecosystem for carbon sequestration, climate adaptation and biodiversity support
European Commission
Engaging with communities in Jaywick around issues of climate change
INSTAR
2022
Re-Embrace: Restoring Estuarine Ecosystems for Mitigation to Build Resilience Against Coastal Climate Change Effects
糖心Vlog (CPPE)
Seascapes: the evidence and vision for a joined up approach to coastal habitat restoration
NERC Centre for Ecology and Hydrology
2021
Investigating the role of light and endogenous rhythms on the motility behaviour of benthic diatoms
Universit锟絫 Konstanz (Funder)
KE Fellowship: Resilient and productive sustainable coastlines
Natural Environment Research Council
2020
EMBRACE - Ecosystem Management: Building Resilience and Adaptability to Coastal Climate Change Effects
糖心Vlog (GCRF)
Understanding microalgal biofilm contributions to sediment 锟絙lue carbon锟� in contrasting salt marsh habitats in the U.S. and Europe
The Royal Society
EPStromNet - Extant Peritidal Stromatolite Network
Natural Environment Research Council
Substrate-mediated interactions between diatoms and bacteria in marine biofilms
FWO Flanders
Ecosystem Management: Building Resilience and Adaptability to Coastal Climate Change Effects
Economic and Social Research Council
2018
Suffolk Marine Pioneer - Deben salt marsh status
Suffolk County Council
2016
NanoBioCar - Impacts of Nanoparticles on microphytobenthic Biofilms and consequences on the Carbon cycle
European Commission (H2020)
2014
Colne Estuary Partnership Conference
Brightlingsea Harbour Commissioners
Data Synthesis and Management of Marine and Coastal Carbon
Natural Environment Research Council
The Role of Lateral Exchange in Modulating the Seaward Flux of C.N.P
Natural Environment Research Council
2013
Salt Marsh Berm Surveys
Environment Agency
2012
A hierarchical approach to the examination of the relationship between biodiversity and ecosystem
Natural Environment Research Council
The Role of Lateral Echange in Modulating the Seaward Flux of CNP
Natural Environment Research Council
The key role of DOM in regulating microbial diversity, community structure and
Natural Environment Research Council
2011
Environmental meta-genomics and biotechnology of Rhazya
King Abdulaziz University
WFD status in TraC waters..
Environment Agency
2010
Colne Estuary Partnerships
Brightlingsea Harbour Commissioners
2009
Research Support for the CEP
Brightlingsea Harbour Commissioners
2008
Lobster Feeding Project
Colchester Oyster Fisheries
