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Nils Risgaard-Petersen

Associate professor

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Nils Risgaard-Petersen

Associate professor

  • Department of Bioscience - Center for Geomicrobiology
  • Department of Bioscience - Arctic Research Centre
  • Department of Bioscience - Center for Electromicrobiology
  • Department of Bioscience - Microbiology
  • Department of Bioscience - WATEC Aarhus University Centre for Water Technology, Ny Munkegade
Postal address:
Ny Munkegade 116
1540, 133
8000
Aarhus C
Denmark
Postal address:
Ny Munkegade 114
1535, 115
8000
Aarhus C
Denmark
Postal address:
Ny Munkegade 116
8000
Aarhus C
Denmark

Email: nils.risgaard-petersen@bios.au.dk

Mobile: +4529656325

Phone: +4587156542, +4587156508

Research outputs

On the evolution and physiology of cable bacteria

Kjeldsen, K. U., Schreiber, L., Thorup, C. A., Boesen, T., Bjerg, J. T., Yang, T., Dueholm, M. S., Larsen, S., Risgaard-Petersen, N., Nierychlo, M., Schmid, M., Bøggild, A., van de Vossenberg, J., Geelhoed, J. S., Meysman, F. J. R., Wagner, M., Nielsen, P. H., Nielsen, L. P. & Schramm, A., 17 Sep 2019, In : Proceedings of the National Academy of Sciences of the United States of America. 116, 38, p. 19116-19125 10 p.

Methylotrophic methanogenesis fuels cryptic methane cycling in marine surface sediment

Xiao, K-Q., Beulig, F., Røy, H., Jørgensen, B. B. & Risgaard-Petersen, N., 9 Feb 2018, In : Limnology and Oceanography. 63, 4, p. 1519-1527 9 p.

Cable Bacteria Stimulate Sulfate Reduction in Freshwater Sediments

Sandfeld, T., Thøgersen, N. B., Marzocchi, U., Petro, C., Schramm, A. & Risgaard-Petersen, N., 2018.

Cable bacteria promote DNRA through iron sulfide dissolution

Kessler, A. J., Wawryk, M., Marzocchi, U., Roberts, K. L., Wong, W. W., Risgaard-Petersen, N., Meysman, F. J. R., Glud, R. N. & Cook, P. L. M., 2018, In : Limnology and Oceanography. 64, 3, p. 1228-1238 11 p.

Dissimilatory nitrate reduction in freshwater cable bacteria

Marzocchi, U., Dam, A-S., Thorup, C., Schramm, A. & Risgaard-Petersen, N., 2018.

Dissimilatory nitrate reduction in freshwater cable bacteria

Marzocchi, U., Thorup, C., Dam, A-S., Schramm, A. & Risgaard-Petersen, N., 2018.

Transient bottom water oxygenation creates a niche for cable bacteria in long-term anoxic sediments of the Eastern Gotland Basin

Marzocchi, U., Bonaglia, S., van de Velde, S., Hall, P. O. J., Schramm, A., Risgaard-Petersen, N. & Meysman, F. J. R., 2018, In : Environmental Microbiology. 20, 8, p. 3031-3041 11 p.

Methylotrophic methanogenesis fuels cryptic methane cycling in marine surface sediment (Aarhus Bay, Denmark)

Xiao, K-Q., Beulig, F., Røy, H., Jørgensen, B. B. & Risgaard-Petersen, N., 28 Aug 2017.

Methylotrophic methanogenesis fuels cryptic methane cycling in marine surface sediment (Aarhus Bay, Denmark) (Oral)

Xiao, K-Q., Beulig, F., Røy, H., Jørgensen, B. B. & Risgaard-Petersen, N., 16 Aug 2017.

Effect of a nitrogen pulse on ecosystem N processing at different temperatures: A mesocosm experiment with 15NO3 addition

Olsen, S., Cao, Y., Florencia Gutierrez, M., Brucet Balmana, S., Landkildehus, F., Lauridsen, T. L., Davidson, T. A., Søndergaard, M., Jeppesen, E. & Risgaard-Petersen, N., 1 Jul 2017, In : Freshwater Biology Online. 62, 7, p. 1232-1243 12 p.

Concurrent Methane Production and Oxidation in Surface Sediment from Aarhus Bay, Denmark

Xiao, K-Q., Beulig, F., Kjeldsen, K. U., Jørgensen, B. B. & Risgaard-Petersen, N., 30 Jun 2017, In : Frontiers in Microbiology. 8, 12 p., 1198.

Electrostatic potential measurements as proxies for cable bacteria activity – potentials and resistances

Damgaard, L. R., Risgaard-Petersen, N., Giao, D. & Nielsen, L. P., 2017.

Iron oxide reduction in methane-rich deep Baltic Sea sediments

Egger, M., Hagens, M., Sapart, C. J., Dijkstra, Van Helmond, N. A. G. M., Mogollón, J. M., Risgaard-Petersen, N., van der Veen, C., Kasten, S., Riedinger, N., Bottcher, Rockmann, T., Jørgensen, B. B. & Slomp, C. P., 2017, In : Geochimica et Cosmochimica Acta. 207, p. 256-276

Nitrogen Retention in Coastal Marine Sediments—a Field Study of the Relative Importance of Biological and Physical Removal in a Danish Estuary

Laurentius Nielsen, S., Risgaard-Petersen, N. & Banta, G., 2017, In : Estuaries and Coasts. 40, 5, p. 1276-1287

Sediment Biogeochemistry After the Entrance of Cable Bacteria

Risgaard-Petersen, N., 2017.

Sinks and Sources of Intracellular Nitrate in Gromiids

Høgslund, S., Cedhagen, T., Bowser, S. & Risgaard-Petersen, N., 2017, In : Frontiers in Microbiology. 8, 11 p., 617.

Evidence of active methanogenesis in surface sediment from Aarhus Bay, Denmark

Xiao, K-Q., Beulig, F., Kjeldsen, K. U., Røy, H., Jørgensen, B. B. & Risgaard-Petersen, N., Aug 2016.

Electrogenic sulfur oxidation in a northern saltmarsh (St. Lawrence Estuary, Canada)

Rao, A., Risgaard-Petersen, N. & Neumeier, U., 2016, In : Canadian Journal of Microbiology. 62, 6, p. 530-537

Nitrate metabolism in the gromiid microbial universe

Høgslund, S., Risgaard-Petersen, N. & Cedhagen, T., 23 Feb 2015.

Cable Bacteria in Freshwater Sediments

Risgaard-Petersen, N., Kristiansen, M., Frederiksen, R., Lindequist Dittmer, A., Bjerg, J. J., Trojan, D., Schreiber, L., Damgaard, L. R., Schramm, A. & Nielsen, L. P., 2015, In : Applied and Environmental Microbiology. 81, 17, p. 6003-6011 9 p.

Nitrate storage and dissimilatory nitrate reduction by eukaryotic microbes

Kamp, A., Høgslund, S., Risgaard-Petersen, N. & Stief, P., 2015, In : Frontiers in Microbiology. 6, 1492.

Rethinking Sediment Biogeochemistry After the Discovery of Electric Currents

Nielsen, L. P. & Risgaard-Petersen, N., 2015, In : Annual Review of Marine Science. 7, 1, p. 425-442 18 p.

The geochemical fingerprint of microbial long-distance electron transport in the seafloor

Meysmann, F. J. R., Risgaard-Petersen, N., Malkin, S. Y. & Nielsen, L. P., 2015, In : Geochimica et Cosmochimica Acta. 152, p. 122-142 21 p.

Electric potential microelectrode for studies of electrobiogeophysics

Damgaard, L. R., Risgaard-Petersen, N. & Nielsen, L. P., 26 Sep 2014, In : Journal of Geophysical Research: Biogeosciences. 119, 9, p. 1906-1917 12 p.

Foraminiferal species responses to in situ, experimentally induced anoxia in the Adriatic Sea

Langlet, D., Baal, C., Geslin, E., Metzger, E., Zuschin, M., Riedel, B., Risgaard-Petersen, N., Stachowitsch, M. & Jorissen, F. J., 4 Apr 2014, In : Biogeosciences. 11, p. 1775–1797

Succession of cable bacteria and electric currents in marine sediment

Schauer, R., Risgaard-Petersen, N., Kjeldsen, K. U., Bjerg, J. J., Jørgensen, B. B., Schramm, A. & Nielsen, L. P., 23 Jan 2014, In : I S M E Journal. 8, p. 1314-1322

Electric coupling between distant nitrate reduction and sulfide oxidation in marine sediment

Marzocchi, U., Trojan, D., Larsen, S., Meyer, R. L., Revsbech, N. P., Schramm, A., Nielsen, L. P. & Risgaard-Petersen, N., 2014, In : I S M E Journal. 8, 8, p. 1682-1690 9 p.

Mapping electron sources and sinks in a marine biogeobattery

Risgaard-Petersen, N., Damgaard, L. R., Revil, A. & Nielsen, L. P., 2014, In : Journal of Geophysical Research: Biogeosciences. 119, 8, p. 1475–1486 12 p.

Changes in N cycling induced by Ulva detritus enrichment of sediments

Garcia-Robledo, E., Revsbech, N. P., Risgaard-Petersen, N. & Corzo, A., 2013, In : Aquatic Microbial Ecology. 69, p. 113-122

Hotspots of anaerobic ammonia oxidation in land - freshwater interfaces

Zhu, G., Wang, S., Wang, W., Wang, Y., Zhou, L., Jiang, B., Op den Camp, H., Risgaard-Petersen, N., Schwark, L., Peng, Y., Hefting, M., Jetten, M. & Yin, C., 2013, In : Nature Geoscience. 6, p. 103-107 5 p.

Long distance electron transport in marine sediments: Microbial and geochemical implications

Risgaard-Petersen, N., Larsen, S., Pfeffer, C., Meyer, R. L., Schramm, A., Dong, M., Song, J., Revil, A., Meister, P. & Nielsen, L. P., 2013. 1 p.

Filamentous bacteria transport electrons over centimetre distances

Pfeffer, C., Larsen, S., Song, J., Dong, M., Besenbacher, F., Meyer, R. L., Kjeldsen, K. U., Schreiber, L., Gorby, Y. A., El-Naggar, M. Y., Leung, K. M., Schramm, A., Risgaard-Petersen, N. & Nielsen, L. P., 8 Nov 2012, In : Nature. 491, p. 218-221 4 p.

Long distance electron transmission in marine sediment

Risgaard-Petersen, N. & Nielsen, L. P., Apr 2012.

Denitrification: an ecosystem service provided by salt marshes

Sousa, A., Lillebø, A., Risgaard-Petersen, N., Pardal, M. & Caçador, I., 2012, In : Marine Ecology - Progress Series. 448, p. 79–92

Distant electric coupling between nitrate reduction and sulphide oxidation investigated by an improved nitrate microscale biosensor

Marzocchi, U., Revsbech, N. P., Nielsen, L. P. & Risgaard-Petersen, N., 2012.

Sulfur, iron-, and calcium cycling associated with natural electric currents running through marine sediment

Risgaard-Petersen, N., Revil, A., Meister, P. & Nielsen, L. P., 2012, In : Geochimica et Cosmochimica Acta. 92, p. 1-13

Anaerobic ammonia oxidation in a fertilized paddy soil

Zhu, G., Wang, S., Wang, Y., Wang, C., Risgaard-Petersen, N., Jetten, M. SM. J. & Yin, C., Dec 2011, In : I S M E Journal. 5, 12, p. 1905–1912 7 p.

Biogeoelectric networks in marine sediments – a ‘first cut’ study

Pfeffer, C., Risgaard-Petersen, N. & Nielsen, L. P., Aug 2011.

Long distance electron transmission couples sulphur, iron, calcium and oxygen cycling in marine sediment

Risgaard-Petersen, N. & Nielsen, L. P., Aug 2011.

Electric shortcuts of biogeochemical processes

Nielsen, L. P., Risgaard-Petersen, N., Fossing, H., Christensen, P. B. & Sayama, M., 2 May 2011. 1 p.

Electric fields and nanowires associated with biogeoelectricity in marine sediment

Risgaard-Petersen, N., Nielsen, L. P., Gorby, Y., Wanger, G., Revil, A., El-Naggar, M., Yuzvinsky, T. & Pfeffer, C., Apr 2011.

Single cell ammonium and carbon assimilation in a marine sediment measured by secondary ion mass spectrometry (nanoSIMS)

Gribsholt, B., Risgaard-Petersen, N., Musat, N., Vagner, T., Adam, B., Kuypers, M. & Jørgensen, B. B., 18 Jan 2011.

A multi-proxy study of anaerobic ammonium oxidation in marine sediments of the Gullmar Fjord, Sweden

Brandsma, J., van de Vossenberg, Risgaard-Petersen, N., Schmid, M. C., Engström, P., Eurenius, K., Hulth, S., Jaeschke, A., Abbas, B., Hopmans, E., Strous, M., Schouten, S., Jetten, M. & Sinninghe Damsté, J. S., 2011, In : Environmental Microbiology Reports. 3, 3, p. 360-366 6 p.

Biogeochemical effects of natural electric currents in marine sediment

Nielsen, L. P., Risgaard-Petersen, N. & Fossing, H., 2011. 1 p.

Coupled organic and inorganic carbon cycling in the deep subseafloor sediment of the northeastern Bering Sea Slope (IODP Exp. 323)

Wehrmann, L. M., Risgaard-Petersen, N., Schrum, H., Walsh, E. A., Huh, Y., Ikehara, M., Pierre, C., D’Hondt, S., Ferdelman, T. G., Ravelo, A. C., Takahashi, K. & Zarikian, C. A., 2011, In : Chemical Geology. 284, 3-4, p. 251-261

Nitrate reduction drives distant sulfide oxidation

Marzocchi, U., Risgaard-Petersen, N., Revsbech, N. P. & Nielsen, L. P., 2011.

Oxygen respiration rates of benthic foraminifera as measured with oxygen microsensors

Geslin, E., Risgaard-Petersen, N., Lombard, F., Metzger, E., Langlet, D. & Jorissen, F., 2011, In : Journal of Experimental Marine Biology and Ecology. 396, p. 108-114

Rapid and Sensitive Nitrosomonas europaea Biosensor Assay for Quantification of Bioavailable Ammonium Sensu Strictu in Soil

Dong, N. M., Risgaard-Petersen, N., Sørensen, J. & Brandt, K. K., 2011, In : Environmental Science & Technology (Washington). 45 , p. 1048–1054 6 p.

Electric currents couple spatially separated biogeochemical processes in marine sediment

Nielsen, L. P., Risgaard-Petersen, N., Fossing, H., Christensen, P. B. & Sayama, M., 2010, In : Nature. 463, 7284, p. 1071-1074 4 p.

Extracellular Electron Transport Coupling Biogeochemical Processes Centimeters

Risgaard-Petersen, N., Fossing, H., Christensen, P. B., Sayama, M. & Nielsen, L. P., 2010, In : Geochimica et Cosmochimica Acta. 12, p. A872 1 p.

Single cell ammonium and carbon assimilation in a marine sediment measured by secondary ion mass spectrometry (nanoSIMS)

Gribsholt, B., Risgaard-Petersen, N., Musat, N., Vagner, T., Adam, B., Kuypers, M. & Jørgensen, B. B., 2010.

Survival and life strategy of the foraminiferan Globobulimina turgida through nitrate storage and denitrification

Ochoa, E. P., Koho, K., Geslin, E. & Risgaard-Petersen, N., 2010, In : Marine Ecology - Progress Series. 417, p. 39–49 10 p.

Survival of Benthic Foraminifera ( Globobulimina turgida ) Through Intracellular Nitrate Respiration: A Laboratory Experiment

Koho, K., Ochoa, E. P., Geslin, E. & Risgaard-Petersen, N., 2010, In : Geochimica et Cosmochimica Acta. 12, p. A528 1 p.

Vertical migration, nitrate uptake and denitri¢cation: survival mechanisms of foraminifers (Globobulimina turgida)under low oxygen conditions

Koho, K., Ochoa, E. P., Geslin, E. & Risgaard-Petersen, N., 2010, In : F E M S Microbiology Ecology. 75, p. 273–283 10 p.

Widespread occurrence of nitrate storage and denitrification among Foraminifera and Gromiida

Ochoa, E. P., Høgslund, S., Geslin, E., Cedhagen, T., Revsbech, N. P., Nielsen, L. P., Magali Schweizer, M., Jorissen, F., Rysgaard, S. & Risgaard-Petersen, N., 2010, In : Proceedings of the National Academy of Sciences of the United States of America. 107, 3, p. 1148-1153 6 p.

Decomposition of macroalgae affects N-cycling in intertidal sediments

García-Robledo, E., Revsbech, N. P., Risgaard-Petersen, N. & Corzo, A., 2009.

Annual changes in abundance of non-indigenous marine benthos on a very large spatial scale

Thomsen, M. S., Wernberg, T., Stæhr, P. A., Silliman, B. R., Josefson, A. B., Krause-Jensen, D. & Risgaard-Petersen, N., 2008, In : Aquatic Invasions. 3, 2, p. 133-140

Electric currents in marine sediment

Nielsen, L. P., Risgaard-Petersen, N., Fossing, H., Christensen, P. B. & Sayama, M., 2008.

Eukaryotic denitrification in benthic marine environments

Høgslund, S., Nielsen, L. P., Revsbech, N. P., Cedhagen, T., Risgaard-Petersen, N. & Gallardo, V. A., 2008.

Alien macroalgae in Denmark - A broad-scale national perspective

Thomsen, M. S., Wernberg, T., Stæhr, P., Krause-Jensen, D., Risgaard-Petersen, N. & Silliman, B. R., 2007, In : Marine Biology Research. 3, 2, p. 61-72

Anaerobic ammonium-oxidizing bacteria in marine environments: widespread occurrence but low diversity

Schmid, M. C., Risgaard-Petersen, N., van de Vossenberg, J., Kuypers, M. M. M., Lavik, G., Petersen, J., Hulth, S., Thamdrup, B., Canfield, D., Dalsgaard, T., Rysgaard, S., Sejr, M. K., Strous, M., Op den Camp, H. J. M. & Jetten, M. S. M., 2007, In : Environmental Microbiology. 9, 6, p. 1476-1484

Benthic Marine Non-Indigenous Species (BM-NIS) increasing in abundance in Denmark?

Thomsen, M. S., Wernberg, T., Stæhr, P. A., Krause-Jensen, D., Josefson, A. B., Risgaard-Petersen, N. & Silliman, B. R., 2007.

Fate of pelagic organic carbon and importance of pelagic-benthic coupling in a shallow cove in Disko Bay, West Greenland

Sejr, M. K., Nielsen, T. G., Rysgaard, S., Risgaard-Petersen, N., Sturluson, M. & Blicher, M. E., 2007, In : Marine Ecology - Progress Series. 341, p. 75-88

Direct measurement of anaerobic ammonium oxidation (Anammox) and denitrification in intact sediment cores

Trimmer, M., Risgaard-Petersen, N., Nicholls, J. C. & Engström, P., 2006, In : Marine Ecology - Progress Series. 326, p. 37-47

Dyr der ånder uden ilt

Risgaard-Petersen, N., Nielsen, L. P., Christensen, P. B. & Holbech, J., 2006, In : D M U Nyt (Online). 10, 11, 2 p.

Evidence for complete denitrification in a benthic foraminifer

Risgaard-Petersen, N., Langezaal, A. M., Ingvardsen, S., Schmid, M. C., Jetten, M. S. M., Op den Camp, H. J. M., Derksen, J. W. M., Pina-Ochoa, E., Eriksson, S. P., Nielsen, L. P., Revsbech, N. P., Cedhagen, T. & van der Zwaan, G. J., 2006, In : Nature. 443, p. 93-96

Nitrogen transformations in stratified aquatic microbial ecosystems

Revsbech, N. P., Risgaard-Petersen, N., Schramm, A. & Nielsen, L. P., 2006, In : Antonie van Leeuwenhoek: Journal of Microbiology. 90, 4, p. 361-375

Anaerobic ammonium oxidation and the micro distribution of nitrite in sediments

Risgaard-Petersen, N., Meyer, R. L., Schramm, A. & Revsbech, N. P., 2005.

Benthic N2 production through anammox and denitrification - a seasonal study on the importance of anammox coupled to sediment mineralization rates

Engström, P., Risgaard-Petersen, N. & Hulth, S., 2005.

Correlation between Anammox Activity and Microscale Distribution of Nitrite in a Subtropical Mangrove Sediment

Meyer, R. L., Risgaard-Petersen, N. & Allen, D. E., 2005, In : Applied and Environmental Microbiology. 71, 10, p. 6142-6149

Denitrification and anaerobic ammonium oxidation in sediments: effects of microphytobenthos and NO3-

Risgaard-Petersen, N., Meyer, R. L. & Revsbech, N. P., 2005, In : Aquatic Microbial Ecology. 40, p. 67-76

Fremmede tangarter i Danmark: Hvilke, hvornår og hvor udbredte?

Thomsen, M. S., Krause-Jensen, D., Wernberg, T., Stæhr, P. & Risgaard-Petersen, N., 2005, In : URT. 29, 3, p. 110-115

Impact of Bacterial NO3- Transport on Sediment Biogeochemistry

Sayama, M., Risgaard-Petersen, N., Nielsen, L. P., Fossing, H. & Christensen, P. B., 2005, In : Applied and Environmental Microbiology. 71, 11, p. 7575-7577

Anaerobic ammonium oxidation in an estuarine sediment

Risgaard-Petersen, N., Meyer, R. L., Schmid, M., Jetten, M. S. M., Enrich-Prast, A., Rysgaard, S. & Revsbech, N. P., 2004, In : Aquatic Microbial Ecology. 36, p. 293-304

Competition between Ammonia-Oxidizing Bacteria and Benthic Microalgae

Risgaard-Petersen, N., Nicolaisen, M. H., Revsbech, N. P. & Lomstein, B. A., 2004, In : Applied and Environmental Microbiology. 70, 9, p. 5528-5537

Denitrification

Risgaard-Petersen, N., Nielsen, S. L. (ed.), Banta, G. T. (ed.) & Pedersen, M. F. (ed.), 2004, In : Aquatic Ecology. Vol. 2, p. 263-280

Denitrification and anammox activity in Arctic marine sediments

Rysgaard, S., Glud, R. N., Risgaard-Petersen, N. & Dalsgaard, T., 2004, In : Limnology and Oceanography. 49, 5, p. 1493-1502

Erratum: Application of the isotope pairing technique in sediments where anammox and denitrification co-exist (vol.1, pg.69, 2003)

Risgaard-Petersen, N., Nielsen, L. P., Rysgaard, S., Dalsgaard, T. & Meyer, R. L., 2004, In : Limnology and Oceanography: Methods. 2, p. 315

Marine områder 2003 - Miljøtilstand og udvikling: NOVA-2003

Ærtebjerg, G. (ed.), Andersen, J. H. (ed.), Bendtsen, J., Carstensen, J., Christiansen, T., Dahl, K., Dahllöf, I., Ellermann, T., Fossing, H., Greve, T. M., Gustafsson, K., Hansen, J. L. S., Henriksen, P., Josefson, A. B., Krause-Jensen, D., Larsen, M. M., Markager, S. S., Nielsen, T. G., Ovesen, N. B., Petersen, J. K., Riemann, B., Risgaard-Petersen, N., Skjøth, C. A., Stedmon, C., Strand, J., Nielsen, S. P., Jensen, J. B. & Madsen, H. B., 2004, Danmarks Miljøundersøgelser, Aarhus Universitet. 97 p. (Faglig rapport fra DMU; No. 513).

Nitrification-denitrification dynamics and community structure of ammonia ozidizing bacteria in a high yield irrigated Philippine rice field

Haubjerg Nicolaisen, M., Risgaard-Petersen, N., Revsbech, N. P., Reichardt, W. & Ramsing, N. B., 2004, In : F E M S Microbiology Ecology. 49, p. 359-369

Teknisk anvisning for marin overvågning. 5.1 Intern belastning: NOVANA

Fossing, H., Christensen, P. B., Dalsgaard, T., Rysgaard, S. & Risgaard-Petersen, N., 2004, Danmarks Miljøundersøgelser, Aarhus Universitet. 54 p. (Teknisk anvisning fra DMU's Marine Fagdatacenter).

Erratum: The importance of sulfate reduction associated with Ulva lactuca thalli during decomposition: A mesocosm experiment (Journal of Experimental Marine Biology and Ecology (2002) 275 (15-29) PII: S0022098102002113)

Nedergaard, R. I., Risgaard-Petersen, N. & Finster, K., 15 Jan 2003, In : Journal of Experimental Marine Biology and Ecology. 283, 1-2, 1 p.

Application of the isotope pairing technique in sediments where anammox and denitrification coexist

Risgaard-Petersen, N., Nielsen, L. P., Rysgaard, S., Dalsgaard, T. & Meyer, R. L., 2003, In : Limnology and Oceanography. 1, p. 63-73

Coupled nitrification-denitrification in autotrophic and heterotrophic estuarine sediments: On the influence of benthic microalgae

Risgaard-Petersen, N., 2003, In : Limnology and Oceanography. 48, 1, p. 93-105

Degradation of organic matter in estuarine sediments

Christensen, P. B., Risgaard-Petersen, N., Fossing, H., Ærtebjerg, G. (ed.), Andersen, J. H. (ed.) & Schou Hansen, O. (ed.), 2003, Nutrients and Eutrophication in Danish Marine Waters: A Challenge for Science and Management. Ærtebjerg, G., Andersen, J. H. & Schou Hansen, O. (eds.). National Environmental Research Institute, p. 62-67

In situ measurements of photosynthetic activity and respiration of intertidal benthic microalgal communities undergoing vertical migration

Brotas, V., Risgaard-Petersen, N., Serôdio, J., Ottosen, L. D. M., Dalsgaard, T. & Ribeiro, L., 2003, In : Ophelia. 57, 1, p. 13-26

Marine områder 2002 - Miljøtilstand og udvikling: NOVA 2003

Rasmussen, M. B. (ed.), Andersen, J. H. (ed.), Ærtebjerg, G., Carstensen, J., Krause-Jensen, D., Greve, T. M., Petersen, J. K., Hansen, J. L. S., Josefson, A. B., Christiansen, T., Gustafsson, K., Ovesen, N. B., Ambelas Skjøth, C., Ellermann, T., Henriksen, P., Markager, S., Schou Hansen, O., Dahl, K., Fossing, H., Risgaard-Petersen, N., Larsen, M. M., Pedersen, B., Dahllöf, I., Strand, J., Christensen, P. B., Conley, D. J., Axe, P., Druon, J-N. & Hansen, J. W., 2003, Danmarks Miljøundersøgelser, Aarhus Universitet. 106 p. (Faglig rapport fra DMU, Vol. 467).

Kvælstofbudget for de indre farvande

Markager, S., Ærtebjerg, G., Christiansen, T., Carstensen, J., Risgaard-Petersen, N., Rysgaard, S., Ærtebjerg, G. (ed.), Andersen, J. (ed.), Carstensen, J. (ed.), Christiansen, T. (ed.), Dahl, K. (ed.), Dahllöf, I. (ed.), Fossing, H. (ed.), Greve, T. M. (ed.), Hansen, J. L. S. (ed.), Henriksen, P. (ed.), Josefson, A. (ed.), Krause-Jensen, D. (ed.), Larsen, M. M. (ed.), Markager, S. (ed.), Nielsen, T. G. (ed.), Pedersen, B. (ed.), Petersen, J. K. (ed.), Risgaard-Petersen, N. (ed.), Rysgaard, S. (ed.), Strand, J. (ed.), Ovesen, N. B. (ed.), Ellermann, T. (ed.), Hertel, O. (ed.) & Skjøth, C. A. (ed.), 2002, Faglig rapport fra DMU. Danmarks Miljøundersøgelser, Aarhus Universitet, p. 71-80 (Faglig rapport fra DMU, Vol. 419).

Marine områder 2001 - Miljøtilstand og udvikling: NOVA-2003

Ærtebjerg, G., Andersen, J., Carstensen, J., Christiansen, T., Dahl, K., Dahllöf, I., Fossing, H., Greve, T. M., Hansen, J. L. S., Henriksen, P., Josefson, A. B., Krause-Jensen, D., Larsen, M. M., Markager, S., Nielsen, T. G., Pedersen, B., Petersen, J. K., Risgaard-Petersen, N., Rysgaard, S., Strand, J., Ovesen, N. B., Ellermann, T., Hertel, O. & Ambelas Skjøth, C., 2002, Danmarks Miljøundersøgelser, Aarhus Universitet. 94 p. (Faglig rapport fra DMU, Vol. 419).

The Importance of Sulfate Reduction Associated with Ulva lactuca Thalli during Decomposition: A Mesocosm Experiment

Nedergaard, R. I., Risgaard-Petersen, N. & Finster, K., 2002, In : Journal of Experimental Marine Biology and Ecology. 275, p. 15-29

Denitrification in Exposed Intertidal Mud-Flats, Measured with a New 15N-Ammonium Spray Technique

Ottosen, L. D. M., Risgaard-Petersen, N., Nielsen, L. P. & Dalsgaard, T., 2001, In : Marine Ecology - Progress Series. 209, p. 35-42

Marine områder 2000 - Miljøtilstand og udvikling: NOVA 2003

Henriksen, P., Andersen, J., Carstensen, J., Christiansen, T., Conley, D. J., Dahl, K., Dahllöf, I., Hansen, J. L. S., Josefson, A. B., Larsen, M. M., Lundsgaard, C., Markager, S., Nielsen, T. G., Pedersen, B., Rasmussen, B., Strand, J., Ærtebjerg, G., Fossing, H., Krause-Jensen, D., Middelboe, A-L., Risgaard-Petersen, N., Ellermann, T., Hertel, O., Ambelas Skjøth, C., Ovesen, N. B., Glasius, M., Pritzl, G. & Gustafson, B. G., 2001, Danmarks Miljøundersøgelser, Aarhus Universitet. 110 p. (Faglig rapport fra DMU, Vol. 375).

Benthic Carbon Mineralization in a High-Arctic Sound (Young Sound, NE Greenland)

Glud, R. N., Risgaard-Petersen, N., Thamdrup, B., Fossing, H. & Rysgaard, S., 2000, In : Marine Ecology - Progress Series. 206, p. 59-71

Nitrogen Cycling in two temperate Zostera marina bed: seasonal variation

Risgaard-Petersen, N. & Ottosen, L. D. M., 2000, In : Marine Ecology - Progress Series. 198, p. 93-107 15 p.

Nitrogen cycling in two temperate Zostera marina beds: Seasonal variations

Risgaard-Petersen, N. & Ottesen, L. D. M., 2000, In : Marine Ecology-Progress Series. 198, p. 93-107

Denitrification in a soft bottom lake measured in field enclosures and sampled core tubes

Risgaard-Petersen, N., Skårup, S. & Nielsen, L. P., 1999, In : Aquatic Microbial Ecology. 17, p. 279-287

Direct and indirect measurements of nitrification and denitrification in the rhizosphere of aquatic macrophytes

Ottosen, L. D. M., Risgaard-Petersen, N. & Nielsen, L. P., 1999, In : Aquatic Microbial Ecology. 19, p. 81-91 11 p.

Kvælstoffjernelse i danske kystnære farvande: Betydning og regulering

Dalsgaard, T., Christensen, P. B., Rysgaard, S., Risgaard-Petersen, N. & Lomstein, B. A. (ed.), 1999, Havmiljøet ved årtusindskiftet. Lomstein, B. A. (ed.). Fredensborg: Olsen, p. 102-118

Potential and direct measurements of nitrification and denitrification in the rhizosphere of aquatic plants

Ottesen, L. D., Risgaard-Petersen, N. & Nielsen, L. P., 1999, In : Aquatic Microbial Ecology. 19, p. 81-91

Denitrifikation i danske fjorde

Risgaard-Petersen, N., Rysgaard, S., Christensen, P. B. & Dalsgaard, T., 1998.

Interpretation of Measured Concentration Profiles in Sediment Pore Water

Berg, P., Risgaard-Petersen, N. & Rysgaard, S., 1998, In : Limnology and Oceanography. 43, 7, p. 1500-1510

Nitrogen Balance of Temperate Eelgrass Zostera marina Bed

Risgaard-Petersen, N., Dalsgaard, T., Rysgaard, S., Christensen, P. B., Borum, J., McGlathery, K. & Nielsen, L. P., 1998, In : Marine Ecology - Progress Series. 174, p. 281-291

Seasonal Carbon and Nutrient Mineralization in a High-Arctic Coastal Marine Sediment, Young Sound, Northeast Greenland

Rysgaard, S., Thamdrup, B., Risgaard-Petersen, N., Fossing, H., Berg, P., Christensen, P. B. & Dalsgaard, T., 1998, In : Marine Ecology - Progress Series. 175, p. 261-276

Simultaneous measurements of benthic denitrification with the isotope pairing technique and the N2 flux method in a continuous flow through system

Risgaard-Petersen, N., Nielsen, L. P. & Blackburn, T. H., 1998, In : Water Research. 32, p. 3371-3377

Temporal and Spatial Variation in Nitrogen Fixation Activity in the Eelgrass Zostera marina Rhizosphere

McGlathery, K. J., Risgaard-Petersen, N. & Christensen, P. B., 1998, In : Marine Ecology - Progress Series. 168, p. 245-258

Denitrification and microphytobenthic NO3- consumption in a danish lowland stream; Diurnal and seasonal variation

Pind, A., Risgaard-Petersen, N. & Revsbech, N. P., 1997, In : Aquatic Microbial Ecology. 12, p. 275-284

Nitrification and denitrification in the rhizosphere of the submerged aquatic macrophyte Lobelia dortmanna

Risgaard-Petersen, N. & Jensen, K., 1997, In : Limnology and Oceanography. 42, p. 529-537

Nutrient Dynamics in North-East Greenland Waters and Sediments

Rysgaard, S., Berg, P., Christensen, P. B., Dalsgaard, T., Fossing, H., Glud, R. N., Holby, O., Jensen, T., Lund-Hansen, L., Revsbech, N. P., Risgaard-Petersen, N., Thamdrup, B., Meltofte, H. (ed.) & Thing, H. (ed.), 1997, Zackenberg Ecological Research Operations, 2nd Annual Report 1996. Meltofte, H. & Thing, H. (eds.). Danish Polar Center, p. 59-64

Kvælstofomsætning i ålegræsbede

Christensen, P. B., Risgaard-Petersen, N., Dalsgaard, T., Rysgaard, S., Borum, J. & Hansen, J. W., 1996, Miljøforskning. p. 22-26 (Miljøforskning, Vol. 23).

Nitrate Fluxes and Understanding of Benthic Denitrification: Reply to the note by Middelburg et al.

Nielsen, L. P., Risgaard-Petersen, N., Rysgaard, S. & Blackburn, T. H., 1996, In : Limnology and Oceanography. 41, 8, p. 1845-1846

Nitrification, Denitrification, and Nitrate Ammonification in Sediments of Two Coastal Lagoons in Southern France

Rysgaard, S., Risgaard-Petersen, N. & Sloth, N. P., 1996, In : Hydrobiologia. 329, p. 133-141

Combined Microdiffusion - Hypobromite Oxidation Method for determining Nitrogen-15 Isotope in Ammonium

Risgaard-Petersen, N., Rysgaard, S. & Revsbech, N. P., 1995, In : Soil Science Society of America Journal. 59, p. 1077-1080

Nitrate Reduction in Sediments and Waterlogged Soil Measured by 15N Techniques

Risgaard-Petersen, N., Rysgaard, S., Alef, K. (ed.) & Nannipieri, P. (ed.), 1995, Methods in Applied Soil Microbiology and Biochemistry. Alef, K. & Nannipieri, P. (eds.). Academic Press, p. 287-295

Nitrogen Cycling in Sediments with Different Organic Loading

Sloth, N. P., Blackburn, H., Stenvang Hansen, L., Risgaard-Petersen, N. & Lomstein, B. A., 1995, In : Marine Ecology - Progress Series. 116, p. 163-170 8 p.

Diurnal Variation of Denitrification and Nitrification in Sediments Colonized by Benthic Microphytes

Risgaard-Petersen, N., Rysgaard, S., Nielsen, L. P. & Revsbech, N. P., 1994, In : Limnology and Oceanography. 39, 3, p. 573-579

Estimation of Nitrification and Denitrification from Microprofiles of Oxygen and Nitrate in Model Sediment Systems

Jensen, K., Sloth, P. N., Risgaard-Petersen, N., Rysgaard, S. & Revsbech, N. P., 1994, In : Applied and Environmental Microbiology. 6, p. 2094-2100

Oxygen Regulation of Nitrification and Denitrification in Sediments

Rysgaard, S., Risgaard-Petersen, N., Sloth, N. P., Jensen, K. & Nielsen, L. P., 1994, In : Limnology and Oceanography. 39, 7, p. 1643-1652

Simulation model of the coupling between denitrification and nitrification in a freshwater sediment

Blackburn, T. H., Blackburn, N. D., Jensen, K. & Risgaard-Petersen, N., 1994, In : Applied Environmental Microbiology. 60, p. 3089-3095

A Sensitive Assay for Determination of 14N/15N Isotope Distribution in NO3-

Risgaard-Petersen, N., Rysgaard, S. & Revsbech, N. P., 1993, In : Journal of Microbiological Methods. 17, p. 155-164

Nitrification and Denitrification in Lake and Estuarine Sediments Measured by the 15N Dilution Technique and Isotope Pairing

Rysgaard, S., Risgaard-Petersen, N., Nielsen, L. P. & Revsbech, N. P., 1993, In : Applied and Environmental Microbiology. 59, 7, p. 2093-2098