Prof Mark Trimmer
Professor of Biogeochemistry
School of Biological and Behavioural Sciences
Queen Mary University of London
Queen Mary University of London
Research
Biogeochemistry, Anammox, Methane cycling, Nitrogen cycling, Microbial ecology, Climate warming
Interests
I apply cutting-edge tracer techniques and molecular approaches to unravel the biogeochemistry and underpinning microbial ecology of a diverse array of aquatic ecosystems. From headwater streams in the Arctic, to the open-ocean Pacific and carefully controlled experimental systems to link cause to effect through climate warming. I also purse the unorthodox to reveal both new and unexpected biogeochemical cycling occurrences, where previously they would have been dismissed – i.e., anaerobic ammonia and methane oxidation in riverbed sediments would have seemed fanciful only 10-years ago and we now know that some ecosystems use the greenhouse gas nitrous oxide as a nitrogen source, changing our perception of ecosystem functioning.Publications
Publications of specific relevance to the Centre for Biodiversity and Sustainability2024
Jackson MC, O'Gorman EJ, Gallo B, Harpenslager SF, Randall K, Harris DN, Prentice H, Trimmer M, Sanders I, Dumbrell AJ, Cameron TC, Layer‐Dobra K, Bespalaya Y, Aksenova O, Friberg N, Cachazo LM, Brooks SJ and Woodward G (2024). Warming reduces trophic diversity in high‐latitude food webs. Global Change Biology, Wiley vol. 30 (10) 01-10-2024
da Silva SSM, Faizullah L, Guignard MS, Orcen N, Ruban AV, Rudall PJ, Trimmer M, Nichols RA, Leitch IJ and Leitch AR (2024). Nitrogen and phosphorus interactions at a 21 nitrogen:1 phosphorus Redfield‐like ratio impact growth and seed yield in wheat (Triticum aestivum L.). Food and Energy Security, Wiley vol. 13 (4) 30-07-2024
2023
Hemsley V, Füssel J, Duret MT, Rayne RR, Iversen MH, Henson SA, Sanders R, Lam P and Trimmer M (2023). Suspended particles are hotspots of microbial remineralization in the ocean's twilight zone. Deep Sea Research Part II Topical Studies in Oceanography, Elsevier vol. 212, 105339-105339. 01-12-2023
Si Y, Zhu Y, Sanders I, Kinkel DB, Purdy KJ and Trimmer M (2023). Direct biological fixation provides a freshwater sink for N2O. Nature Communications, Springer Nature vol. 14 (1), 6775-6775. 25-10-2023
Kleber GE, Hodson AJ, Magerl L, Mannerfelt ES, Bradbury HJ, Zhu Y, Trimmer M and Turchyn AV (2023). Groundwater springs formed during glacial retreat are a large source of methane in the high Arctic. Nature Geoscience, Springer Nature vol. 16 (7), 597-604. 01-07-2023
Kleber G, Hodson A, Magerl L, Schytt Mannerfelt E, Bradbury H, Zhu Y, Trimmer M and Turchyn A (2023). Glacial retreat driving enhanced methane emissions in the high Arctic. 15-05-2023
Zhu Y, Purdy KJ, Rodríguez AM and Trimmer M (2023). A rationale for higher ratios of CH17-04-2023
2022
Zhu Y, Jones JI, Collins AL, Zhang Y, Olde L, Rovelli L, Murphy JF, Heppell CM and Trimmer M (2022). Separating natural from human enhanced methane emissions in headwater streams. Nature Communications, Springer Nature vol. 13 (1) 01-07-2022
Clark DR, McKew BA, Binley A, Heppell CM, Whitby C and Trimmer M (2022). Hydrological properties predict the composition of microbial communities cycling methane and nitrogen in rivers. ISME Communications vol. 2 (1), 5-5. 21-01-2022
2021
Rovelli L, Olde LA, Heppell CM, Binley A, Yvon‐Durocher G, Glud RN and Trimmer M (2021). Contrasting biophysical controls on carbon dioxide and methane outgassing from streams. Journal of Geophysical Research Biogeosciences vol. 127 (1) 21-12-2021
Tsola SL, Zhu Y, Ghurnee O, Economou CK, Trimmer M and Eyice Ö (2021). Diversity of dimethylsulfide‐degrading methanogens and sulfate‐reducing bacteria in anoxic sediments along the Medway Estuary, UK. Environmental Microbiology, Wiley vol. 23 (8), 4434-4449. 17-06-2021
Heathwaite AL, Heppell C, Binley A, Byrne P, Lansdown K, Trimmer M, Ullah S and Zhang H (2021). Spatial and temporal dynamics of nitrogen exchange in an upwelling reach of a groundwater‐fed river and potential response to perturbations changing rainfall patterns under UK climate change scenarios. Hydrological Processes, Wiley vol. 35 (4) 01-04-2021
Barneche DR, Hulatt CJ, Dossena M, Padfield D, Woodward G, Trimmer M and Yvon-Durocher G (2021). Warming impairs trophic transfer efficiency in a long-term field experiment. Nature, Nature Research vol. 592 (7852), 76-79. 01-03-2021
Ouyang L, Thamdrup B and Trimmer M (2021). Coupled nitrification and N2 gas production as a cryptic process in oxic riverbeds. Nature Communications, Springer Nature vol. 12 (1) 22-02-2021
2020
Trimmer M, Zhu Y, Purdy K, Eyice Ö, Shen L, Harpenslager S, Yvon-Durocher G and Dumbrell A (2020). Disproportionate increase in freshwater methane
emissions induced by experimental warming., Editors: Findlay A. Nature Climate Change, Nature Research 29-06-2020
Clark DR, McKew BA, Dong LF, Leung G, Dumbrell AJ, Stott A, Grant H, Nedwell DB, Trimmer M and Whitby C (2020). Mineralization and nitrification: Archaea dominate ammonia-oxidising communities in grassland soils. Soil Biology and Biochemistry, Elsevier vol. 143 01-04-2020
2019
Guignard MS, Crawley MJ, Kovalenko D, Nichols RA, Trimmer M, Leitch AR and Leitch IJ (2019). Interactions between plant genome size, nutrients and herbivory by rabbits, molluscs and insects on a temperate grassland. Proceedings of the Royal Society B, The Royal Society vol. 286 (1899) 20-03-2019
Sampson A, Ings N, Shelley F, Tuffin S, Grey J, Trimmer M, Woodward G and Hildrew AG (2019). Geographically widespread 13C‐depletion of grazing caddis larvae: A third way of fuelling stream food webs? Freshwater Biology, Wiley vol. 64 (4), 787-798. 13-02-2019
Shen L-D, Ouyang L, Zhu Y and Trimmer M (2019). Spatial separation of anaerobic ammonium oxidation and nitrite-dependent anaerobic methane oxidation in permeable riverbeds. Environ Microbiol 06-02-2019
Aspin TWH, Hart K, Khamis K, Milner AM, O'Callaghan MJ, Trimmer M, Wang Z, Williams GMD, Woodward G and Ledger ME (2019). Drought intensification alters the composition, body size, and trophic structure of invertebrate assemblages in a stream mesocosm experiment. Freshwater Biology, Wiley vol. 64 (4), 750-760. 06-02-2019
2018
Aspin TWH, Khamis K, Matthews TJ, Milner AM, O’Callaghan MJ, Trimmer M, Woodward G and Ledger ME (2018). Extreme drought pushes stream invertebrate communities over functional thresholds. Global Change Biology, Wiley vol. 25 (1), 230-244. 14-11-2018
Shen L-D, Ouyang L, Zhu Y and Trimmer M (2018). Active pathways of anaerobic methane oxidation across contrasting riverbeds. The ISME Journal: Multidisciplinary Journal of Microbial Ecology, Oxford University Press (OUP) vol. 13 (3), 752-766. 30-10-2018
Rovelli L, Attard KM, Heppell CM, Binley A, Trimmer M and Glud RN (2018). Headwater gas exchange quantified from O2 mass balances at the reach scale. Limnol Oceanogr Methods vol. 16 (10), 696-709. 28-09-2018
Cavan EL, Giering SLC, Wolff GA, Trimmer M and Sanders R (2018). Alternative Particle Formation Pathways in the Eastern Tropical North Pacific's Biological Carbon Pump. Journal of Geophysical Research: Biogeosciences vol. 123 (7), 2198-2211. 01-07-2018
2017
Shelley F, Klaar M, Krause S and Trimmer M (2017). Enhanced hyporheic exchange flow around woody debris does not increase nitrate reduction in a sandy streambed. Biogeochemistry vol. 136 (3), 353-372. 01-12-2017
Yvon-Durocher G, Schaum CE and Trimmer M (2017). The temperature dependence of phytoplankton stoichiometry: Investigating the roles of species sorting and local adaptation. Frontiers in Microbiology vol. 8 (OCT) 23-10-2017
HEPPELL CM (2017). Hydrological controls on DOC:nitrate resources stoichiometry in a lowland, agricultural catchment, southern UK. Hydrology and Earth System Sciences, Copernicus Publications 27-09-2017
Leitch AR, Trimmer M, Guignard M, Eizaguirre C, Woodward G, Acquisti C, elser JJ, hessen D, Jeyasingh PD, Neiman M, Richardson AE, Soltis PS, Soltis DE, Stevens CJ, Weider LJ and Leitch IJ (2017). Impacts of Nitrogen and Phosphorus: From Genomes to Natural Ecosystems and Agriculture. Frontiers in Ecology and Evolution vol. 5 (70), 1-9. 06-07-2017
Rovelli L, Attard KM, Binley A, Heppell CM, Stahl H, Trimmer M and Glud RN (2017). Reach-scale river metabolism across contrasting sub-catchment geologies: Effect of light and hydrology. Limnology and Oceanography 05-07-2017
Shelley F, Ings N, Hildrew AG, Trimmer M and Grey J (2017). Bringing methanotrophy in rivers out of the shadows. Limnology and Oceanography 26-04-2017
Trimmer M, Shelley FC, Purdy KJ, Maanoja ST, Chronopoulou P-M and Grey J (2017). Riverbed methanotrophy sustained by high carbon conversion efficiency. ISME J vol. 11 (4), 1058-1058. 01-04-2017
Cavan EL, Trimmer M, Shelley F and Sanders R (2017). Remineralization of particulate organic carbon in an ocean oxygen minimum zone. Nature Communications, Nature Publishing Group vol. 8 21-03-2017
Schaum C-E, Barton S, Bestion E, Buckling A, Garcia-Carreras B, Lopez P, Lowe C, Pawar S, Smirnoff N, Trimmer M and Yvon-Durocher G (2017). Adaptation of phytoplankton to a decade of experimental warming linked to increased photosynthesis. Nature Ecology & Evolution vol. 1 (4), 0094-0094. 20-03-2017
Chronopoulou PM, Shelley F, Pritchard WJ, Maanoja ST and Trimmer M (2017). Origin and fate of methane in the Eastern Tropical
North Pacific oxygen minimum zone. The ISME Journal, Nature Publishing Group 28-02-2017
Gabriel Yvon-Durocher Y, Hulatt CJ, Woodward G and TRIMMER M (2017). Long-term warming amplifies shifts in the carbon
cycle of experimental ponds. Nature Climate Change, Nature Publishing Group 20-02-2017
2016
TRIMMER M (2016). Nitrous oxide as a function of oxygen and archaeal gene abundance in the north pacific. Nature Communications, Nature Publishing Group: Nature Communications 01-12-2016
Sanders RJ, Henson SA, Martin AP, Anderson TR, Bernardello R, Enderlein P, Fielding S, Giering SLC, Hartmann M, Iversen M, Khatiwala S, Lam P, Lampitt R, Mayor DJ, Moore MC, Murphy E, Painter SC, Poulton AJ, Saw K, Stowasser G, et al. (2016). Controls over Ocean Mesopelagic Interior Carbon Storage (COMICS): Fieldwork, Synthesis, and Modeling Efforts. Frontiers in Marine Science, Frontiers vol. 3 05-08-2016
TRIMMER M (2016). Importance and controls of anaerobic ammonium oxidation influenced by riverbed geology. Nature Geoscience, Nature Publishing Group 28-03-2016
Jin L, Whitehead PG, Heppell CM, Lansdown K, Purdie DA and Trimmer M (2016). Modelling flow and inorganic nitrogen dynamics on the Hampshire Avon: Linking upstream processes to downstream water quality. Sci Total Environ vol. 572, 1496-1506. 05-03-2016
Guignard MS, Nichols RA, Knell RJ, Macdonald A, Romila C-A, Trimmer M, Leitch IJ and LEITCH AR (2016). Genome size and ploidy influence angiosperm species’ biomass under nitrogen and phosphorus limitation. New Phytologist, John Wiley & Sons, Inc 15-02-2016
Hamilton RL, Trimmer M, Bradley C and Pinay G (2016). Deforestation for oil palm alters the fundamental balance of the soil N cycle. Soil Biology and Biochemistry vol. 95, 223-232. 13-01-2016
Klaar M, Shelley F, Trimmer M, Hannah D, Bridgeman J and Krause S (2016). INSTREAM WOOD AS A DRIVER OF NUTRIENT ATTENUATION IN A LOWLAND SANDY STREAM. 01-01-2016
2015
Yvon-Durocher G, Allen AP, Cellamare M, Dossena M, Gaston KJ, Leitao M, Montoya JM, Reuman DC, Woodward G and Trimmer M (2015). Five Years of Experimental Warming Increases the Biodiversity and Productivity of Phytoplankton. PLOS Biology, Public Library of Science (PLoS) vol. 13 (12) 17-12-2015
Thompson MSA, Bankier C, Bell T, Dumbrell AJ, Gray C, Ledger ME, Lehmann K, McKew BA, Sayer CD, Shelley F, Trimmer M, Warren SL and Woodward G (2015). Gene‐to‐ecosystem impacts of a catastrophic pesticide spill: testing a multilevel bioassessment approach in a river ecosystem. Freshwater Biology, Wiley vol. 61 (12), 2037-2050. 24-09-2015
Trimmer M, Shelley FC, Purdy KJ, Maanoja ST, Chronopoulou P-M and Grey J (2015). Riverbed methanotrophy sustained by high carbon conversion efficiency. ISME J vol. 9 (10), 2304-2314. 09-06-2015
Lansdown K, Heppell CM, Trimmer M, Binley A, Heathwaite AL, Byrne P and Zhang H (2015). The interplay between transport and reaction rates as controls on nitrate attenuation in permeable, streambed sediments. Journal of Geophysical Research Biogeosciences, American Geophysical Union (AGU) vol. 120 (6), 1093-1109. 01-06-2015
Yvon-Durocher G, Dossena M, Trimmer M, Woodward G and Allen AP (2015). Temperature and the biogeography of algal stoichiometry. Global Ecology and Biogeography vol. 24 (5), 562-570. 01-05-2015
Byrne P, Zhang H, Ullah S, Binley A, Heathwaite AL, Heppell CM, Lansdown K and Trimmer M (2015). Diffusive equilibrium in thin films provides evidence of suppression of hyporheic exchange and large-scale nitrate transformation in a groundwater-fed river. Hydrological Processes vol. 29 (6), 1385-1396. 15-03-2015
Shelley F, Abdullahi F, Grey J and Trimmer M (2015). Microbial methane cycling in the bed of a chalk river: Oxidation has the potential to match methanogenesis enhanced by warming. Freshwater Biology vol. 60 (1), 150-160. 01-01-2015
Perkins DM, Bailey RA, Dossena M, Gamfeldt L, Reiss J, Trimmer M and Woodward G (2015). Higher biodiversity is required to sustain multiple ecosystem processes across temperature regimes. Glob Chang Biol vol. 21 (1), 396-406. 01-01-2015
2014
Shelley F, Abdullahi F, Grey J and Trimmer M (2014). Microbial methane cycling in the bed of a chalk river: oxidation has the potential to match methanogenesis enhanced by warming. Freshwater Biology, Wiley vol. 60 (1), 150-160. 08-10-2014
Byrne P, Binley A, Heathwaite AL, Ullah S, Heppell CM, Lansdown K, Zhang H, Trimmer M and Keenan P (2014). Control of river stage on the reactive chemistry of the hyporheic zone. Hydrological Processes vol. 28 (17), 4766-4779. 15-08-2014
Byrne P, Zhang H, Ullah S, Binley A, Heathwaite AL, Heppell CM, Lansdown K and Trimmer M (2014). Diffusive equilibrium in thin films provides evidence of suppression of hyporheic exchange and large‐scale nitrate transformation in a groundwater‐fed river. Hydrological Processes, Wiley vol. 29 (6), 1385-1396. 15-07-2014
Leitch AR, Leitch IJ, Trimmer M, Guignard MS and Woodward G (2014). Impact of genomic diversity in river ecosystems. Trends Plant Sci vol. 19 (6), 361-366. 01-06-2014
Shelley F, Grey J and Trimmer M (2014). Widespread methanotrophic primary production in lowland chalk rivers. Proc Biol Sci vol. 281 (1783) 22-05-2014
Lansdown K, Heppell CM, Dossena M, Ullah S, Heathwaite AL, Binley A, Zhang H and Trimmer M (2014). Fine-scale in situ measurement of riverbed nitrate production and consumption in an armored permeable riverbed. Environ Sci Technol vol. 48 (8), 4425-4434. 15-04-2014
Krause S, Klaar MJ, Hannah DM, Mant J, Bridgeman J, Trimmer M and Manning‐Jones S (2014). The potential of large woody debris to alter biogeochemical processes and ecosystem services in lowland rivers. Wiley Interdisciplinary Reviews Water, Wiley vol. 1 (3), 263-275. 22-02-2014
Ullah S, Zhang H, Heathwaite AL, Heppell C, Lansdown K, Binley A and Trimmer M (2014). Influence of emergent vegetation on nitrate cycling in sediments of a groundwater-fed river. BIOGEOCHEMISTRY vol. 118 (1-3), 121-134. 01-01-2014
Heppell C, Heathwaite AL, Binley A, Byrne P, Ullah S, Lansdown K, Keenan P, Trimmer M and Zhang H (2014). Interpreting spatial patterns in redox and coupled water-nitrogen fluxes in the streambed of a gaining river reach. BIOGEOCHEMISTRY vol. 117 (2-3), 491-509. 01-01-2014
2013
Trimmer M, Engström P and Thamdrup B (2013). Stark contrast in denitrification and anammox across the deep Norwegian trench in the Skagerrak. Appl Environ Microbiol vol. 79 (23), 7381-7389. 01-12-2013
Huygens D, Trimmer M, Rütting T, Müller C, Heppell CM, Lansdown K and Boeckx P (2013). Biogeochemical Nitrogen Cycling in Wetland Ecosystems: Nitrogen‐15 Isotope Techniques. Methods in Biogeochemistry of Wetlands 553-591. 18-10-2013
Neubacher EC, Parker RE and Trimmer M (2013). The potential effect of sustained hypoxia on nitrogen cycling in sediment from the southern North Sea: a mesocosm experiment. BIOGEOCHEMISTRY vol. 113 (1-3), 69-84. 01-01-2013
Binley A, Ullah S, Heathwaite AL, HEPPELL CM, Byrne P, Lansdown K, Trimmer M and Zhang H (2013). Revealing the spatial variability of water fluxes at the groundwater-surface water interface. Water Resources Research, Wiley Online vol. 49 (7), 3978-3992. 01-01-2013
Stewart RIA, Dossena M, Bohan DA, Jeppesen E, Kordas RL, Ledger ME, Meerhoff M, Moss B, Mulder C, Shurin JB, Suttle B, Thompson R, Trimmer M and Woodward G (2013). Mesocosm Experiments as a Tool for Ecological Climate-Change Research. ADVANCES IN ECOLOGICAL RESEARCH, VOL 48: GLOBAL CHANGE IN MULTISPECIES SYSTEMS, PT 3 vol. 48, 71-181. 01-01-2013
Byrne P, Binley A, Heathwaite AL, Ullah S, Heppell CM, Lansdown K, Zhang H, Trimmer M and Keenan P (2013). Control of river stage on the reactive chemistry of the hyporheic zone. Hydrological Processes 01-01-2013
Byrne P, Zhang H, Heathwaite L, Binley A, Ullah S, Kaeser D, Heppell K, Lansdown K and Trimmer M (2013). PASSIVE PORE WATER SAMPLING PROVIDES EVIDENCE OF SUPPRESSION OF HYPORHEIC EXCHANGE AND NITRATE TRANSFORMATION IN A GROUNDWATER-FED RIVER. 01-01-2013
Stewart RIA, Dossena M, Bohan DA, Jeppesen E, Kordas RL, Ledger ME, Meerhoff M, Moss B, Mulder C, Shurin JB, Suttle B, Thompson R, Trimmer M and Woodward G (2013). Chapter Two Mesocosm Experiments as a Tool for Ecological Climate-Change Research. Global Change in Multispecies Systems: Part 3 71-181. 01-01-2013
2012
Trimmer M, Grey J, Heppell CM, Hildrew AG, Lansdown K, Stahl H and Yvon-Durocher G (2012). River bed carbon and nitrogen cycling: state of play and some new directions. Sci Total Environ vol. 434, 143-158. 15-09-2012
Trimmer M, Grey J, Heppell CM, Hildrew AG, Lansdown K, Stahl H and Yvon-Durocher G (2012). River bed carbon and nitrogen cycling: State of play and some new directions. Science of the Total Environment vol. 434, 143-158. 15-09-2012
Trimmer M and Purdy KJ (2012). Evidence for the direct oxidation of organic nitrogen to N2 gas in the Arabian Sea. ISME J vol. 6 (9), 1798-1800. 01-09-2012
Dossena M, Yvon-Durocher G, Grey J, Montoya JM, Perkins DM, Trimmer M and Woodward G (2012). Warming alters community size structure and ecosystem functioning. Proc Biol Sci vol. 279 (1740), 3011-3019. 07-08-2012
Yvon-Durocher G, Caffrey JM, Cescatti A, Dossena M, del Giorgio P, Gasol JM, Montoya JM, Pumpanen J, Staehr PA, Trimmer M, Woodward G and Allen AP (2012). Reconciling the temperature dependence of respiration across timescales and ecosystem types. Nature vol. 487 (7408), 472-476. 26-07-2012
Yvon-Durocher G, Caffrey JM, Cescatti A, Dossena M, Giorgio PD, Gasol JM, Montoya JM, Pumpanen J, Staehr PA, Trimmer M, Woodward G and Allen AP (2012). Reconciling the temperature dependence of respiration across timescales and ecosystem types. Nature vol. 487 (7408), 472-476. 26-07-2012
Rooks C, Schmid MC, Mehsana W and Trimmer M (2012). The depth-specific significance and relative abundance of anaerobic ammonium-oxidizing bacteria in estuarine sediments (Medway Estuary, UK). FEMS Microbiol Ecol vol. 80 (1), 19-29. 01-04-2012
Perkins DM, Yvon-Durocher G, Demars BOL, Reiss J, Pichler DE, Friberg N, Trimmer M and Woodward G (2012). Consistent temperature dependence of respiration across ecosystems contrasting in thermal history. Global Change Biology vol. 18 (4), 1300-1311. 01-04-2012
Perkins DM, Yvon-Durocher G, Demars BO, Reiss J, Pichler DE, Friberg N, Trimmer M and Woodward G (2012). Consistent temperature dependence of respiration across ecosystems contrasting in thermal history. Global Change Biology 01-01-2012
Lansdown K, Trimmer M, Heppell CM, Sgouridis F, Ullah S, Heathwaite AL, Binley A and Zhang H (2012). Characterization of the key pathways of dissimilatory nitrate reduction and their response to complex organic substrates in hyporheic sediments. LIMNOLOGY AND OCEANOGRAPHY vol. 57 (2), 387-400. 01-01-2012
Ullah S, Zhang H, Heathwaite AL, Binley A, Lansdown K, HEPPELL CM and Trimmer M (2012). In situ measurement of redox sensitive solutes at high spatial resolution in a riverbed using Diffusive Equilibrium in Thin Films (DET). Ecological Engineering vol. 49, 18-26. 01-01-2012
2011
Sgouridis F, Heppell CM, Wharton G, Lansdown K and Trimmer M (2011). Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) in a temperate re-connected floodplain. Water Res vol. 45 (16), 4909-4922. 15-10-2011
Trimmer M and Engström P (2011). Distribution, Activity, and Ecology of Anammox Bacteria in Aquatic Environments. Nitrification 14-05-2011
Yvon-Durocher G, Montoya JM, Trimmer M and Woodward G (2011). Warming alters the size spectrum and shifts the distribution of biomass in freshwater ecosystems. GLOBAL CHANGE BIOL vol. 17 (4), 1681-1694. 01-04-2011
Neubacher EC, Parker RE and Trimmer M (2011). Short-term hypoxia alters the balance of the nitrogen cycle in coastal sediments. LIMNOL OCEANOGR vol. 56 (2), 651-665. 01-03-2011
Yvon-Durocher G, Montoya JM, Woodward G, Jones JI and Trimmer M (2011). Warming increases the proportion of primary production emitted as methane from freshwater mesocosms. GLOBAL CHANGE BIOL vol. 17 (2), 1225-1234. 01-02-2011
TRIMMER M and Engstrom P (2011). Distribution, activity, and ecology of anammox bacteria in aquatic environments. Nitrification , Editors: Ward BB, Arp DJ and Klotz MG. 01-01-2011
Friberg N, Bonada N, Bradley DC, Dunbar MJ, Edwards FK, Grey J, Hayes RB, Hildrew AG, Lamouroux N, Trimmer M and Woodward G (2011). Biomonitoring of Human Impacts in Freshwater Ecosystems: The Good, the Bad and the Ugly. ADV ECOL RES vol. 44, 1-68. 01-01-2011
2010
Purdy KJ, Hurd PJ, Moya-Laraño J, Trimmer M, Oakley BB and Woodward G (2010). Systems biology for ecology. From molecules to ecosystems. 30-11-2010
Yvon-Durocher G, Jones JI, Trimmer M, Woodward G and Montoya JM (2010). Warming alters the metabolic balance of ecosystems. Philos Trans R Soc Lond B Biol Sci vol. 365 (1549), 2117-2126. 12-07-2010
Trimmer M, Maanoja S, Hildrew AG, Pretty JL and Grey J (2010). Potential carbon fixation via methane oxidation in well-oxygenated riverbed gravels. LIMNOL OCEANOGR vol. 55 (2), 560-568. 01-03-2010
Purdy KJ, Hurd PJ, Moya-Larano J, Trimmer M, Oakley BB and Woodward G (2010). Systems Biology for Ecology: From Molecules to Ecosystems. ADV ECOL RES vol. 43, 87-149. 01-01-2010
Yvon-Durocher G, Allen AP, Montoya JM, Trimmer M and Woodward G (2010). The Temperature Dependence of the Carbon Cycle in Aquatic Ecosystems. ADV ECOL RES vol. 43, 267-313. 01-01-2010
Purdy KJ, Hurd PJ, Moya-Laraño J, Trimmer M, Oakley BB and Woodward G (2010). Chapter 3 Systems Biology for Ecology From Molecules to Ecosystems. Integrative Ecology: From Molecules to Ecosystems 87-149. 01-01-2010
2009
Trimmer M, Hildrew AG, Jackson MC, Pretty JL and Grey J (2009). Evidence for the role of methane-derived carbon in a free-flowing, lowland river food web. LIMNOL OCEANOGR vol. 54 (5), 1541-1547. 01-09-2009
Aldridge JN and Trimmer M (2009). Modelling the distribution and growth of 'problem' green seaweed in the Medway estuary, UK. 01-08-2009
Trimmer M, Sanders IA and Heppell CM (2009). Carbon and nitrogen cycling in a vegetated lowland chalk river impacted by sediment. 15-07-2009
Jaeschke A, Rooks C, Trimmer M, Nicholls JC, Hopmans EC, Schouten S and Damste JSS (2009). Comparison of ladderane phospholipid and core lipids as indicators for anaerobic ammonium oxidation (anammox) in marine sediments. GEOCHIM COSMOCHIM AC vol. 73 (7), 2077-2088. 01-04-2009
Trimmer M and Nicholls JC (2009). Production of nitrogen gas via anammox and denitrification in intact sediment cores along a continental shelf to slope transect in the North Atlantic. LIMNOL OCEANOGR vol. 54 (2), 577-589. 01-03-2009
Trimmer M, Sanders IA and HEPPELL C (2009). Carbon and nitrogen cycling in a vegetated lowland chalk river impacted by sediment. Hydrological Processes, Wiley Online vol. 23 (15), 2225-2238. 01-01-2009
Nicholls JC and Trimmer M (2009). Widespread occurrence of the anammox reaction in estuarine sediments. AQUAT MICROB ECOL vol. 55 (2), 105-113. 01-01-2009
Jia W, Tovell N, Clegg S, Trimmer M and Cole J (2009). A single channel for nitrate uptake, nitrite export and nitrite uptake by Escherichia coli NarU and a role for NirC in nitrite export and uptake. Biochem J vol. 417 (1), 297-304. 01-01-2009
Aldridge JN and Trimmer M (2009). Modelling the distribution and growth of ‘problem’ green seaweed in the Medway estuary, UK. Eutrophication in Coastal Ecosystems 107-122. 01-01-2009
2008
Weston K, Fernand L, Nicholls J, Marca-Bell A, Mills D, Sivyer D and Trimmer M (2008). Sedimentary and water column processes in the Oyster Grounds: A potentially hypoxic region of the North Sea. MAR ENVIRON RES vol. 65 (3), 235-249. 01-04-2008
2007
Sanders IA, Heppell CM, Cotton JA, Wharton G, Hildrew AG, Flowers EJ and Trimmer M (2007). Emission of methane from chalk streams has potential implications for agricultural practices. Freshwater Biology vol. 52 (6), 1176-1186. 01-06-2007
Nicholls JC, Davies CA and Trimmer M (2007). High-resolution profiles and nitrogen isotope tracing reveal a dominant source of nitrous oxide and multiple pathways of nitrogen gas formation in the central Arabian Sea. LIMNOL OCEANOGR vol. 52 (1), 156-168. 01-01-2007
2006
Pretty JL, Hildrew AG and Trimmer M (2006). Nutrient dynamics in relation to surface-subsurface hydrological exchange in a groundwater fed chalk stream. J HYDROL vol. 330 (1-2), 84-100. 30-10-2006
Wharton G, Cotton JA, Wotton RS, Bass JAB, Heppell CM, Trimmer M, Sanders IA and Warren LL (2006). Macrophytes and suspension-feeding invertebrates modify flows and fine sediments in the Frome and Piddle catchments, Dorset (UK). J HYDROL vol. 330 (1-2), 171-184. 30-10-2006
Sanders IA and Trimmer M (2006). In situ application of the (NO3-)-N-15 isotope pairing technique to measure denitrification in sediments at the surface water-groundwater interface. LIMNOL OCEANOGR-METH vol. 4, 142-152. 01-05-2006
Trimmer M, Risgaard-Petersen N, Nicholls JC and Engstrom P (2006). Direct measurement of anaerobic ammonium oxidation (anammox) and denitrification in intact sediment cores. MAR ECOL-PROG SER vol. 326, 37-47. 01-01-2006
2005
Trimmer M, Nicholls JC, Morley N, Davies CA and Aldridge J (2005). Biphasic behavior of anammox regulated by nitrite and nitrate in an estuarine sediment. Appl Environ Microbiol vol. 71 (4), 1923-1930. 01-04-2005
Trimmer M, Petersen J, Sivyer DB, Mills C, Young E and Parker ER (2005). Impact of long-term benthic trawl disturbance on sediment sorting and biogeochemistry in the southern North Sea. MAR ECOL-PROG SER vol. 298, 79-94. 01-01-2005
2003
Trimmer M, Nicholls JC and Deflandre B (2003). Anaerobic ammonium oxidation measured in sediments along the Thames estuary, United Kingdom. Appl Environ Microbiol vol. 69 (11), 6447-6454. 01-11-2003
Trimmer M, Gowen RJ and Stewart BM (2003). Changes in sediment processes across the western Irish Sea Front. ESTUAR COAST SHELF S vol. 56 (5-6), 1011-1019. 01-04-2003
TRIMMER M and Aldridge J (2003). Investigation of factors controlling the presence of macroalgae in some estuaries of the Southern Water Region. 01-01-2003
TRIMMER M, Warr K, Sivyer D, Kershaw P, Meadows B, Hewer A and Parker R (2003). Preliminary report on the effect of disturbance on sediment biogeochemistry. 01-01-2003
2002
Hughes R, TRIMMER M, Winder J, Furse H, Gunn I, Luckes S, Monteith D, May L, Johnston A, Maitland P, Taylor R, Dawson H, Carvalho L and Bennion H (2002). Nutrient Conditions for Different Levels of Ecological Status and Biological Quality in Surface Waters (Phase I). 01-01-2002
2001
Kelly-Gerreyn BA, Trimmer M and Hydes DJ (2001). A diagenetic model discriminating denitrification and dissimilatory nitrate reduction to ammonium in a temperate estuarine sediment. MAR ECOL-PROG SER vol. 220, 33-46. 01-01-2001
2000
Gowen RJ, Mills DK, Trimmer M and Nedwell DB (2000). Production and its fate in two coastal regions of the Irish Sea: the influence of anthropogenic nutrients. MAR ECOL-PROG SER vol. 208, 51-64. 01-01-2000
1997
Trimmer M, Purdy KJ and Nedwell DB (1997). Process measurement and phylogenetic analysis of the sulfate reducing bacterial communities of two contrasting benthic sites in the upper estuary of the Great Ouse, Norfolk, UK. FEMS Microbiology Ecology, Oxford University Press (OUP) vol. 24 (4), 333-342. 01-12-1997
Grants
Grants of specific relevance to the Centre for Biodiversity and SustainabilityFlocculation in cyanobacteria: from mechanism to ecologyConrad Mullineaux and Mark Trimmer
£201,021 Leverhulme Trust (01-05-2020 - 10-04-2024)
Temperature and nitrogen modulated nitrous oxide fixationMark Trimmer
£333,448 Leverhulme Trust (01-10-2019 - 31-07-2023)