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Research

Publications: Prof Mark Trimmer

Ouyang L, Thamdrup B, Trimmer M ( 2021 ) . Coupled nitrification and N<inf>2</inf> gas production as a cryptic process in oxic riverbeds . Nature Communications vol. 12 , ( 1 )
Heathwaite AL, Heppell C, Binley A, Byrne P, Lansdown K, Trimmer M, Ullah S, 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 vol. 35 , ( 4 )
Barneche DR, Hulatt CJ, Dossena M, Padfield D, Woodward G, Trimmer M, Yvon-Durocher G ( 2021 ) . Warming impairs trophic transfer efficiency in a long-term field experiment . Nature vol. 592 , ( 7852 ) 76 - 79 .
Tsola SL, Zhu Y, Ghurnee O, Economou CK, Trimmer M, Eyice Ö ( 2021 ) . Diversity of dimethylsulfide-degrading methanogens and sulfate-reducing bacteria in anoxic sediments along the Medway Estuary, UK . Environmental Microbiology
Trimmer M, Zhu Y, Purdy K, Eyice Ö, Shen L, Harpenslager S, Yvon-Durocher G, Dumbrell A ( 2020 ) . Disproportionate increase in freshwater methane emissions induced by experimental warming . Nature Climate Change
Clark DR, McKew BA, Dong LF, Leung G, Dumbrell AJ, Stott A, Grant H, Nedwell DB et al. ( 2020 ) . Mineralization and nitrification: Archaea dominate ammonia-oxidising communities in grassland soils . Soil Biology and Biochemistry vol. 143 ,
Aspin TWH, Hart K, Khamis K, Milner AM, O'Callaghan MJ, Trimmer M, Wang Z, Williams GMD et al. ( 2019 ) . Drought intensification alters the composition, body size, and trophic structure of invertebrate assemblages in a stream mesocosm experiment . Freshwater Biology vol. 64 , ( 4 ) 750 - 760 .
Sampson A, Ings N, Shelley F, Tuffin S, Grey J, Trimmer M, Woodward G, Hildrew AG ( 2019 ) . Geographically widespread <sup>13</sup> C-depletion of grazing caddis larvae: A third way of fuelling stream food webs? . Freshwater Biology vol. 64 , ( 4 ) 787 - 798 .
Guignard MS, Crawley MJ, Kovalenko D, Nichols RA, Trimmer M, Leitch AR, Leitch IJ ( 2019 ) . Interactions between plant genome size, nutrients and herbivory by rabbits, molluscs and insects on a temperate grassland . Proceedings. Biological sciences vol. 286 , ( 1899 )
Shen LD, Ouyang L, Zhu Y, Trimmer M ( 2019 ) . Active pathways of anaerobic methane oxidation across contrasting riverbeds . ISME Journal vol. 13 , ( 3 ) 752 - 766 .
Shen L-D, Ouyang L, Zhu Y, Trimmer M ( 2019 ) . Spatial separation of anaerobic ammonium oxidation and nitrite-dependent anaerobic methane oxidation in permeable riverbeds . Environ Microbiol
Aspin TWH, Khamis K, Matthews TJ, Milner AM, O¿Callaghan MJ, Trimmer M, Woodward G, Ledger ME ( 2019 ) . Extreme drought pushes stream invertebrate communities over functional thresholds . Global Change Biology vol. 25 , ( 1 ) 230 - 244 .
Rovelli L, Attard KM, Heppell CM, Binley A, Trimmer M, Glud RN ( 2018 ) . Headwater gas exchange quantified from O2 mass balances at the reach scale . Limnol Oceanogr Methods vol. 16 , ( 10 ) 696 - 709 .
Cavan EL, Giering SLC, Wolff GA, Trimmer M, 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 .
Shelley F, Klaar M, Krause S, 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 .
Yvon-Durocher G, Schaum CE, Trimmer M ( 2017 ) . The temperature dependence of phytoplankton stoichiometry: Investigating the roles of species sorting and local adaptation . Frontiers in Microbiology vol. 8 , ( OCT )
HEPPELL CM ( 2017 ) . Hydrological controls on DOC:nitrate resources stoichiometry in a lowland, agricultural catchment, southern UK . Hydrology and Earth System Sciences
Leitch AR, Trimmer M, Guignard M, Eizaguirre C, Woodward G, Acquisti C, elser JJ, hessen D et al. ( 2017 ) . Impacts of Nitrogen and Phosphorus: From Genomes to Natural Ecosystems and Agriculture . Frontiers in Ecology and Evolution vol. 5 , ( 70 ) 1 - 9 .
Rovelli L, Attard KM, Binley A, Heppell CM, Stahl H, Trimmer M, Glud RN ( 2017 ) . Reach-scale river metabolism across contrasting sub-catchment geologies: Effect of light and hydrology . Limnology and Oceanography
Shelley F, Ings N, Hildrew AG, Trimmer M, Grey J ( 2017 ) . Bringing methanotrophy in rivers out of the shadows . Limnology and Oceanography
Trimmer M, Shelley FC, Purdy KJ, Maanoja ST, Chronopoulou P-M, Grey J ( 2017 ) . Riverbed methanotrophy sustained by high carbon conversion efficiency . England , vol. 11 , is. 4 , pp. 1058 - 1058 .
Cavan EL, Trimmer M, Shelley F, Sanders R ( 2017 ) . Remineralization of particulate organic carbon in an ocean oxygen minimum zone . Nature Communications vol. 8 , Article 14847 ,
Schaum C-E, Barton S, Bestion E, Buckling A, Garcia-Carreras B, Lopez P, Lowe C, Pawar S et al. ( 2017 ) . Adaptation of phytoplankton to a decade of experimental warming linked to increased photosynthesis . Nature Ecology & Evolution vol. 1 , ( 4 ) 0094 - 0094 .
Chronopoulou PM, Shelley F, Pritchard WJ, Maanoja ST, Trimmer M ( 2017 ) . Origin and fate of methane in the Eastern Tropical North Pacific oxygen minimum zone . The ISME Journal
Gabriel Yvon-Durocher Y, Hulatt CJ, Woodward G, TRIMMER M ( 2017 ) . Long-term warming amplifies shifts in the carbon cycle of experimental ponds . Nature Climate Change
Thompson MSA, Bankier C, Bell T, Dumbrell AJ, Gray C, Ledger ME, Lehmann K, McKew BA et al. ( 2016 ) . Gene-to-ecosystem impacts of a catastrophic pesticide spill: testing a multilevel bioassessment approach in a river ecosystem . Freshwater Biology vol. 61 , ( 12 ) 2037 - 2050 .
TRIMMER M ( 2016 ) . Nitrous oxide as a function of oxygen and archaeal gene abundance in the north pacific . Nature Communications
TRIMMER M ( 2016 ) . Importance and controls of anaerobic ammonium oxidation influenced by riverbed geology . Nature Geoscience
Jin L, Whitehead PG, Heppell CM, Lansdown K, Purdie DA, 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 .
Guignard MS, Nichols RA, Knell RJ, Macdonald A, Romila C-A, Trimmer M, Leitch IJ, LEITCH AR ( 2016 ) . Genome size and ploidy influence angiosperm species’ biomass under nitrogen and phosphorus limitation . New Phytologist
Hamilton RL, Trimmer M, Bradley C, Pinay G ( 2016 ) . Deforestation for oil palm alters the fundamental balance of the soil N cycle . Soil Biology and Biochemistry vol. 95 , 223 - 232 .
Sanders RJ, Henson SA, Martin AP, Anderson TR, Bernardello R, Enderlein P, Fielding S, Giering SLC et al. ( 2016 ) . Controls over ocean mesopelagic interior carbon storage (COMICS): Fieldwork, synthesis, and modeling efforts . Frontiers in Marine Science vol. 3 , ( AUG )
Klaar M, Shelley F, Trimmer M, Hannah D, Bridgeman J, Krause S, Webb JA, Costelloe JF et al. ( 2016 ) . INSTREAM WOOD AS A DRIVER OF NUTRIENT ATTENUATION IN A LOWLAND SANDY STREAM . 11TH INTERNATIONAL SYMPOSIUM ON ECOHYDRAULICS .
Yvon-Durocher G, Allen AP, Cellamare M, Dossena M, Gaston KJ, Leitao M, Montoya JM, Reuman DC et al. ( 2015 ) . Five Years of Experimental Warming Increases the Biodiversity and Productivity of Phytoplankton . PLoS Biology vol. 13 , ( 12 )
Trimmer M, Shelley FC, Purdy KJ, Maanoja ST, Chronopoulou P-M, Grey J ( 2015 ) . Riverbed methanotrophy sustained by high carbon conversion efficiency . ISME J vol. 9 , ( 10 ) 2304 - 2314 .
Huygens D, Trimmer M, Rütting T, Müller C, Heppell CM, Lansdown K, Boeckx P ( 2015 ) . Biogeochemical nitrogen cycling in wetland ecosystems: Nitrogen-15 isotope techniques . Methods in Biogeochemistry of Wetlands ,
Byrne P, Zhang H, Ullah S, Binley A, Heathwaite AL, Heppell CM, Lansdown K, 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 .
Perkins DM, Bailey RA, Dossena M, Gamfeldt L, Reiss J, Trimmer M, Woodward G ( 2015 ) . Higher biodiversity is required to sustain multiple ecosystem processes across temperature regimes . Glob Chang Biol vol. 21 , ( 1 ) 396 - 406 .
Shelley F, Abdullahi F, Grey J, 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 .
Yvon-Durocher G, Dossena M, Trimmer M, Woodward G, Allen AP ( 2015 ) . Temperature and the biogeography of algal stoichiometry . Global Ecology and Biogeography
Lansdown K, Heppell CM, Trimmer M, Binley A, Heathwaite AL, Byrne P, Zhang H ( 2015 ) . The interplay between transport and reaction rates as controls on nitrate attenuation in permeable, streambed sediments . Journal of Geophysical Research G: Biogeosciences vol. 120 , ( 6 ) 1093 - 1109 .
Byrne P, Binley A, Heathwaite AL, Ullah S, Heppell CM, Lansdown K, Zhang H, Trimmer M et al. ( 2014 ) . Control of river stage on the reactive chemistry of the hyporheic zone . Hydrological Processes vol. 28 , ( 17 ) 4766 - 4779 .
Leitch AR, Leitch IJ, Trimmer M, Guignard MS, Woodward G ( 2014 ) . Impact of genomic diversity in river ecosystems . Trends Plant Sci vol. 19 , ( 6 ) 361 - 366 .
Shelley F, Grey J, Trimmer M ( 2014 ) . Widespread methanotrophic primary production in lowland chalk rivers . Proc Biol Sci vol. 281 , ( 1783 )
Lansdown K, Heppell CM, Dossena M, Ullah S, Heathwaite AL, Binley A, Zhang H, 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 .
Ullah S, Zhang H, Heathwaite AL, Heppell C, Lansdown K, Binley A, Trimmer M ( 2014 ) . Influence of emergent vegetation on nitrate cycling in sediments of a groundwater-fed river . BIOGEOCHEMISTRY vol. 118 , ( 1-3 ) 121 - 134 .
Heppell C, Heathwaite AL, Binley A, Byrne P, Ullah S, Lansdown K, Keenan P, Trimmer M et al. ( 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 .
Krause S, Klaar MJ, Hannah DM, Mant J, Bridgeman J, Trimmer M, Manning¿Jones S ( 2014 ) . The potential of large woody debris to alter biogeochemical processes and ecosystem services in lowland rivers . Wiley Interdisciplinary Reviews Water vol. 1 , ( 3 ) 263 - 275 .
Byrne P, Zhang H, Ullah S, Binley A, Heathwaite AL, Heppell CM, Lansdown K, 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
Shelley F, Abdullahi F, Grey J, 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
Trimmer M, Engström P, 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 .
Neubacher EC, Parker RE, 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 .
Stewart RIA, Dossena M, Bohan DA, Jeppesen E, Kordas RL, Ledger ME, Meerhoff M, Moss B et al. ( 2013 ) . Chapter Two Mesocosm Experiments as a Tool for Ecological Climate-Change Research . Global Change in Multispecies Systems: Part 3 , vol. 48 ,
Byrne P, Binley A, Heathwaite AL, Ullah S, Heppell CM, Lansdown K, Zhang H, Trimmer M et al. ( 2013 ) . Control of river stage on the reactive chemistry of the hyporheic zone . Hydrological Processes
Stewart RIA, Dossena M, Bohan DA, Jeppesen E, Kordas RL, Ledger ME, Meerhoff M, Moss B et al. ( 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 .
Byrne P, Zhang H, Heathwaite L, Binley A, Ullah S, Kaeser D, Heppell K, Lansdown K et al. ( 2013 ) . PASSIVE PORE WATER SAMPLING PROVIDES EVIDENCE OF SUPPRESSION OF HYPORHEIC EXCHANGE AND NITRATE TRANSFORMATION IN A GROUNDWATER-FED RIVER . PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND TECHNOLOGY .
Binley A, Ullah S, Heathwaite AL, HEPPELL CM, Byrne P, Lansdown K, Trimmer M, Zhang H ( 2013 ) . Revealing the spatial variability of water fluxes at the groundwater-surface water interface . Water Resources Research vol. 49 , ( 7 ) 3978 - 3992 .
Trimmer M, Grey J, Heppell CM, Hildrew AG, Lansdown K, Stahl H, 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 .
Trimmer M, Grey J, Heppell CM, Hildrew AG, Lansdown K, Stahl H, Yvon-Durocher G ( 2012 ) . River bed carbon and nitrogen cycling: state of play and some new directions . Sci Total Environ vol. 434 , 143 - 158 .
Trimmer M, 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 .
Dossena M, Yvon-Durocher G, Grey J, Montoya JM, Perkins DM, Trimmer M, Woodward G ( 2012 ) . Warming alters community size structure and ecosystem functioning . Proc Biol Sci vol. 279 , ( 1740 ) 3011 - 3019 .
Yvon-Durocher G, Caffrey JM, Cescatti A, Dossena M, Giorgio PD, Gasol JM, Montoya JM, Pumpanen J et al. ( 2012 ) . Reconciling the temperature dependence of respiration across timescales and ecosystem types . Nature vol. 487 , ( 7408 ) 472 - 476 .
Yvon-Durocher G, Caffrey JM, Cescatti A, Dossena M, del Giorgio P, Gasol JM, Montoya JM, Pumpanen J et al. ( 2012 ) . Reconciling the temperature dependence of respiration across timescales and ecosystem types . Nature vol. 487 , ( 7408 ) 472 - 476 .
Perkins DM, Yvon-Durocher G, Demars BOL, Reiss J, Pichler DE, Friberg N, Trimmer M, Woodward G ( 2012 ) . Consistent temperature dependence of respiration across ecosystems contrasting in thermal history . Global Change Biology vol. 18 , ( 4 ) 1300 - 1311 .
Rooks C, Schmid MC, Mehsana W, 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 .
Lansdown K, Trimmer M, Heppell CM, Sgouridis F, Ullah S, Heathwaite AL, Binley A, 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 .
Perkins DM, Yvon-Durocher G, Demars BO, Reiss J, Pichler DE, Friberg N, Trimmer M, Woodward G ( 2012 ) . Consistent temperature dependence of respiration across ecosystems contrasting in thermal history . Global Change Biology
Ullah S, Zhang H, Heathwaite AL, Binley A, Lansdown K, HEPPELL CM, 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 .
Sgouridis F, Heppell CM, Wharton G, Lansdown K, Trimmer M ( 2011 ) . Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) in a temperate re-connected floodplain . Water Res vol. 45 , ( 16 ) 4909 - 4922 .
Yvon-Durocher G, Montoya JM, Trimmer M, 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 .
Neubacher EC, Parker RE, Trimmer M ( 2011 ) . Short-term hypoxia alters the balance of the nitrogen cycle in coastal sediments . LIMNOL OCEANOGR vol. 56 , ( 2 ) 651 - 665 .
Yvon-Durocher G, Montoya JM, Woodward G, Jones JI, Trimmer M ( 2011 ) . Warming increases the proportion of primary production emitted as methane from freshwater mesocosms . GLOBAL CHANGE BIOL vol. 17 , ( 2 ) 1225 - 1234 .
Friberg N, Bonada N, Bradley DC, Dunbar MJ, Edwards FK, Grey J, Hayes RB, Hildrew AG et al. ( 2011 ) . Biomonitoring of Human Impacts in Freshwater Ecosystems: The Good, the Bad and the Ugly . ADV ECOL RES vol. 44 , 1 - 68 .
TRIMMER M, Engstrom P ( 2011 ) . Distribution, activity, and ecology of anammox bacteria in aquatic environments . Nitrification , Editors: Ward, BB, Arp, DJ, Klotz, MG , ASM Press ( Washington DC ),
Purdy KJ, Hurd PJ, Moya-Laraño J, Trimmer M, Oakley BB, Woodward G ( 2010 ) . Systems biology for ecology. From molecules to ecosystems .
Yvon-Durocher G, Allen AP, Montoya JM, Trimmer M, Woodward G ( 2010 ) . The temperature dependence of the carbon cycle in aquatic ecosystems .
Yvon-Durocher G, Jones JI, Trimmer M, Woodward G, Montoya JM ( 2010 ) . Warming alters the metabolic balance of ecosystems . Philos Trans R Soc Lond B Biol Sci vol. 365 , ( 1549 ) 2117 - 2126 .
Trimmer M, Maanoja S, Hildrew AG, Pretty JL, Grey J ( 2010 ) . Potential carbon fixation via methane oxidation in well-oxygenated riverbed gravels . LIMNOL OCEANOGR vol. 55 , ( 2 ) 560 - 568 .
Purdy KJ, Hurd PJ, Moya-Laraño J, Trimmer M, Oakley BB, Woodward G ( 2010 ) . Chapter 3 Systems Biology for Ecology From Molecules to Ecosystems . Integrative Ecology: From Molecules to Ecosystems , vol. 43 ,
Purdy KJ, Hurd PJ, Moya-Larano J, Trimmer M, Oakley BB, Woodward G ( 2010 ) . Systems Biology for Ecology: From Molecules to Ecosystems . ADV ECOL RES vol. 43 , 87 - 149 .
Yvon-Durocher G, Allen AP, Montoya JM, Trimmer M, Woodward G ( 2010 ) . The Temperature Dependence of the Carbon Cycle in Aquatic Ecosystems . ADV ECOL RES vol. 43 , 267 - 313 .
Trimmer M, Hildrew AG, Jackson MC, Pretty JL, 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 .
Aldridge JN, Trimmer M ( 2009 ) . Modelling the distribution and growth of 'problem' green seaweed in the Medway estuary, UK . HYDROBIOLOGIA . vol. 629 , 107 - 122 .
Trimmer M, Sanders IA, Heppell CM ( 2009 ) . Carbon and nitrogen cycling in a vegetated lowland chalk river impacted by sediment . HYDROLOGICAL PROCESSES . vol. 23 , 2225 - 2238 .
Jaeschke A, Rooks C, Trimmer M, Nicholls JC, Hopmans EC, Schouten S, 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 .
Trimmer M, 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 .
Jia W, Tovell N, Clegg S, Trimmer M, 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 .
Trimmer M, Sanders IA, HEPPELL C ( 2009 ) . Carbon and nitrogen cycling in a vegetated lowland chalk river impacted by sediment . Hydrological Processes vol. 23 , ( 15 ) 2225 - 2238 .
Aldridge JN, Trimmer M ( 2009 ) . Modelling the distribution and growth of ‘problem’ green seaweed in the Medway estuary, UK . Eutrophication in Coastal Ecosystems ,
Nicholls JC, Trimmer M ( 2009 ) . Widespread occurrence of the anammox reaction in estuarine sediments . AQUAT MICROB ECOL vol. 55 , ( 2 ) 105 - 113 .
Weston K, Fernand L, Nicholls J, Marca-Bell A, Mills D, Sivyer D, 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 .
Sanders IA, Heppell CM, Cotton JA, Wharton G, Hildrew AG, Flowers EJ, Trimmer M ( 2007 ) . Emission of methane from chalk streams has potential implications for agricultural practices . Freshwater Biology vol. 52 , ( 6 ) 1176 - 1186 .
Nicholls JC, Davies CA, 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 .
Wharton G, Cotton JA, Wotton RS, Bass JAB, Heppell CM, Trimmer M, Sanders IA, 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 .
Pretty JL, Hildrew AG, 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 .
Sanders IA, 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 .
Trimmer M, Purdy KJ, Nedwell DB ( 2006 ) . 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 vol. 24 , ( 4 ) 333 - 342 .
Trimmer M, Risgaard-Petersen N, Nicholls JC, Engstrom P ( 2006 ) . Direct measurement of anaerobic ammonium oxidation (anammox) and denitrification in intact sediment cores . MAR ECOL-PROG SER vol. 326 , 37 - 47 .
Trimmer M, Nicholls JC, Morley N, Davies CA, Aldridge J ( 2005 ) . Biphasic behavior of anammox regulated by nitrite and nitrate in an estuarine sediment . Appl Environ Microbiol vol. 71 , ( 4 ) 1923 - 1930 .
Trimmer M, Petersen J, Sivyer DB, Mills C, Young E, 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 .
Trimmer M, Nicholls JC, Deflandre B ( 2003 ) . Anaerobic ammonium oxidation measured in sediments along the Thames estuary, United Kingdom . Appl Environ Microbiol vol. 69 , ( 11 ) 6447 - 6454 .
Trimmer M, Gowen RJ, Stewart BM ( 2003 ) . Changes in sediment processes across the western Irish Sea Front . ESTUAR COAST SHELF S vol. 56 , ( 5-6 ) 1011 - 1019 .
TRIMMER M, Aldridge J ( 2003 ) . Investigation of factors controlling the presence of macroalgae in some estuaries of the Southern Water Region . report no. CEFAS C1642 ,
TRIMMER M, Warr K, Sivyer D, Kershaw P, Meadows B, Hewer A, Parker R ( 2003 ) . Preliminary report on the effect of disturbance on sediment biogeochemistry . report no. CEFAS AE1224 ,
Hughes R, TRIMMER M, Winder J, Furse H, Gunn I, Luckes S, Monteith D, May L et al. ( 2002 ) . Nutrient Conditions for Different Levels of Ecological Status and Biological Quality in Surface Waters (Phase I) .
Kelly-Gerreyn BA, Trimmer M, 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 .
Gowen RJ, Mills DK, Trimmer M, 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 .