Skip to content
Norsk A A A
Scientist profile

Tron Frede Thingstad


Department of Biology

Marine microbiology

Title: Professor

Phone: +47 55 58 26 83

Cellphone: +47 907 12 022 SMS


Visiting address: Thormøhlensgt. 53 A/B

Interested in the system of micro-organisms in the pelagic: phytoplankton, protozoa, bacteria, archaea, and their viruses. Working on the theoretical aspects of how organism strategies for competition and defense generates pattern in the complexity of this "invisible" ecosystem. Has worked in particular with the microbial P-cycle. Work with laboratory model ecosystems, mesocosm experiments and field/cruise observations together with mathematical modelling.

Cand.real in Biophysics (1973) Univ of Oslo

Dr.philos (1987) Univ. of Bergen

Publications in Cristin

ISI statistics(May, 2014): 112 articles, 8030 citations, h-index 42, 72 citations/article. Listed by ISI as "Highly cited in the field of Plant and Animal Sciences"

Thingstad, TF, Vage, S, Storesund, J. Sandaa R.A, and Giske J (2014) A theoretical analysis of how strain-specific viruses can control microbial species diversity. PNAS. Early on-line edition May 13 2014

Mitra, A; Flynn, KJ; Burkholder, JM; Berge, T; Calbet, A; Raven, JA; Graneli, E; Glibert, PM; Hansen, PJ; Stoecker, DK; Thingstad, F; Tillmann, U; Vage, S; Wilken, S; Zubkov, MV; Mitra, A.; Flynn, K. J.; Burkholder, J. M.; Berge, T.; Calbet, A.; Raven, J. A.; Graneli, E.; Glibert, P. M.; Hansen, P. J.; Stoecker, D. K.; Thingstad, F.; Tillmann, U.; Vage, S.; Wilken, S.; Zubkov, M. V. (2014) The role of mixotrophic protists in the biological carbon pump. BIOGEOSCIENCES. 11:995-1005


Pagarete, A.; Chow, C. -E. T.; Johannessen, T.; Fuhrman, J. A.; Thingstad, T. F.; Sandaa, R. A.(2013) Strong Seasonality and Interannual Recurrence in Marine Myovirus Communities. APPLIED AND ENVIRONMENTAL MICROBIOLOGY. 79: 6253-6259


Moore, CM; Mills, MM; Arrigo, KR; Berman-Frank, I; Bopp, L; Boyd, PW; Galbraith, ED; Geider, RJ; Guieu, C; Jaccard, SL; Jickells, TD; La Roche, J; Lenton, TM; Mahowald, NM; Maranon, E; Marinov, I; Moore, JK; Nakatsuka, T; Oschlies, A; Saito, MA; Thingstad, TF; Tsuda, A; Ulloa, O (2013) Processes and patterns of oceanic nutrient limitation. NATURE GEOSCIENCE. 6: 701-710


Vage, S; Castellani, M; Giske, J; Thingstad, T. F. (2013) Successful strategies in size structured mixotrophic food webs AQUATIC ECOLOGY. 47:329-347


Vage, S. ; Storesund, J. E.; Thingstad, T. F. (2013) Adding a cost of resistance description extends the ability of virus-host model to explain observed patterns in structure and function of pelagic microbial communities ENVIRONMENTAL MICROBIOLOGY. 15: 1842-1852


Castellani, M.; Vage, S.; Strand, E.; Thingstad, T. F.; Giske, J. (2013) The Scaled Subspaces Method: A new trait-based approach to model communities of populations with largely inhomogeneous density. ECOLOGICAL MODELLING. 251: 173-186


Riebesell, U.; Gattuso, J. -P.; Thingstad, T. F.; Middelburg, J. J. (2013) "Arctic ocean acidification: pelagic ecosystem and biogeochemical responses during a mesocosm study" Preface. BIOGEOSCIENCES. 10: 5619-5626


Lignell, R.; Haario, H.; Laine, M.; Thingstad, T. F. (2013) Getting the "right" parameter values for models of the pelagic microbial food web. LIMNOLOGY AND OCEANOGRAPHY 58:301-313


Topper, B.; Thingstad, T.F.; Sandaa, R.-A. (2013) Effects of differences in organic supply on bacterial diversity subject to viral lysis. FEMS MICROBIOLOGY ECOLOGY. 83: 202-213


Ray, JL; Topper, B; An, S; Silyakova, A; Spindelbock, J; Thyrhaug, R; DuBow, MS; Thingstad, TF; Sandaa, RA(2013) Effect of increased pCO2 on bacterial assemblage shifts in response to glucose addition in Fram Strait seawater mesocosms. FEMS MICROBIOLOGY ECOLOGY. 82: 713-723


Heldal, M; Norland, S; Erichsen, ES; Thingstad, TF; Bratbak, G (2012) An Unaccounted Fraction of Marine Biogenic CaCO3 Particles. PLOS ONE . 7 (10) e47887 10.1371


Sebastian, M; Pitta, P; Gonzalez, JM; Thingstad, TF; Gasol, JM (2012) Bacterioplankton groups involved in the uptake of phosphate and dissolved organic phosphorus in a mesocosm experiment with P-starved Mediterranean waters ENVIRONMENTAL MICROBIOLOGY. 14:2334-2347


Heldal, M; Norland, S; Erichsen, ES; Sandaa, RA; Larsen, A; Thingstad, F; Bratbak, G (2012) Mg2+ as an indicator of nutritional status in marine bacteria. ISME JOURNAL. 2:1751-7362


Haraldsson, M; Tonnesson, K; Tiselius, P; Thingstad, TF; Aksnes, DL (2012) Relationship between fish and jellyfish as a function of eutrophication and water clarity. MARINE ECOLOGY PROGRESS SERIES. 471:73-85


Cuevas, LA; Egge, JK; Thingstad, TF; Topper, B (2011) Organic carbon and mineral nutrient limitation of oxygen consumption, bacterial growth and efficiency in the Norwegian Sea POLAR BIOLOGY. 34: 871-882


Tanaka, T; Thingstad, TF; Christaki, U; Colombet, J; Cornet-Barthaux, V; Courties, C; Grattepanche, JD; Lagaria, A; Nedoma, J; Oriol, L; Psarra, S; Pujo-Pay, M; Van Wambeke, F (2011) Lack of P-limitation of phytoplankton and heterotrophic prokaryotes in surface waters of three anticyclonic eddies in the stratified Mediterranean Sea BIOGEOSCIENCES. 8:525-538


Topper, B; Larsen, A; Thingstad, TF; Thyrhaug, R; Sandaa, RA (2011) Bacterial community composition in an Arctic phytoplankton mesocosm bloom: the impact of silicate and glucose POLAR BIOLOGY. 33:1557-1565

Beltran Rodriguez-Brito, LinLin Li, Linda Wegley, Mike Furlan, Florent Angly, Mya Breitbart, John Buchanan, Christelle Desnues, Elizabeth Dinsdale, Robert Edwards, Ben Felts, Matthew Haynes, Hong Liu, David Lipson, Joseph Mahaffy, Anna Belen Martin-Cuadrado, Alex Mira5, Jim Nulton, Lejla Pasˇic´, Steve Rayhawk, Jennifer Rodriguez-Mueller, Francisco Rodriguez-Valera, Peter Salamon, Shailaja Srinagesh, Tron Frede Thingstad, Tuong Tran, Rebecca Vega Thurber, Dana Willner, Merry Youle and Forest Rohwer (2010) Viral and microbial community dynamics in four aquatic environments. The ISME Journal , 1–13

Winter C, Bouvier T, Weinbauer MG, Thingstad TF (2010) Trade-Offs between Competition and Defense Specialists among Unicellular Planktonic Organisms: the "Killing the Winner" Hypothesis Revisited. Microbiology and Molecular Biology Reviews 74:42-57

Thingstad TF, Strand E, Larsen A (2010) Stepwise building of plankton functional type (PFT) models: A feasible route to complex models? Progress in Oceanography 84:6-15

Tanaka T, Thingstad TF, Gasol JM, Cardelus C, Jezbera J, Sala MM, Simek K, Unrein F (2009) Determining the availability of phosphate and glucose for bacteria in P-limited mesocosms of NW Mediterranean surface waters. Aquatic Microbial Ecology 56:81-91

Tambi H, Flaten GAF, Egge JK, Bodtker G, Jacobsen A, Thingstad TF (2009) Relationship between phosphate affinities and cell size and shape in various bacteria and phytoplankton. Aquatic Microbial Ecology 57:311-320

Sandaa RA, Gomez-Consarnau L, Pinhassi J, Riemann L, Malits A, Weinbauer MG, Gasol JM, Thingstad TF (2009) Viral control of bacterial biodiversity - evidence from a nutrient-enriched marine mesocosm experiment. Environmental Microbiology 11:2585-2597

Rodriguez-Valera F, Martin-Cuadrado AB, Rodriguez-Brito B, Pasic L, Thingstad TF, Rohwer F, Mira A (2009) OPINION Explaining microbial population genomics through phage predation. Nature Reviews Microbiology 7:828-836

Fox C, Harris R, Sundby S, Achterberg E, Allen JI, Allen J, Baker A, Brussaard CPD, Buckley P, Cook EJ, Dye SR, Edwards M, Fernand L, Kershaw P, Metcalfe J, Osterhus S, Potter T, Sakshaug E, Speirs D, Stenevik E, John MS, Thingstad F, Wilson B (2009) Transregional Linkages in the North-Eastern Atlantic - an 'End-to-End' Analysis of Pelagic Ecosystems. In: Oceanography and Marine Biology: an Annual Review, Vol 47, Vol 47, p 1-75

Egge JK, Thingstad TF, Larsen A, Engel A, Wohlers J, Bellerby RGJ, Riebesell U (2009) Primary production during nutrient-induced blooms at elevated CO2 concentrations. Biogeosciences 6:877-885

Thingstad TF, Bratbak G, Heldal M (2008) Ch. 10: Aquatic phage ecology In: Abedon ST (ed) Bacteriophage Ecology. Cambridge

Thingstad TF, Bellerby RGJ, Bratbak G, Borsheim KY, Egge JK, Heldal M, Larsen A, Neill C, Nejstgaard J, Norland S, Sandaa RA, Skjoldal EF, Tanaka T, Thyrhaug R, Topper B (2008) Counterintuitive carbon-to-nutrient coupling in an Arctic pelagic ecosystem. Nature 455:387-U337

Tanaka T, Thingstad TF, Lovdal T, Grossart HP, Larsen A, Allgaier M, Meyerhofer M, Schulz KG, Wohlers J, Zollner E, Riebesell U (2008) Availability of phosphate for phytoplankton and bacteria and of glucose for bacteria at different pCO(2) levels in a mesocosm study. Biogeosciences 5:669-678

Riebesell U, Bellerby RGJ, Grossart HP, Thingstad F (2008) Mesocosm CO2 perturbation studies: from organism to community level. Biogeosciences 5:1157-1164

Lovdal T, Skjoldal EF, Heldal M, Norland S, Thingstad TF (2008) Changes in morphology and elemental composition of Vibrio splendidus along a gradient from carbon-limited to phosphate-limited growth. Microbial Ecology 55:152-161

Lovdal T, Eichner C, Grossart HP, Carbonnel V, Chou L, Martin-Jezequel V, Thingstad TF (2008) Competition for inorganic and organic forms of nitrogen and phosphorous between phytoplankton and bacteria during an Emiliania huxleyi spring bloom. Biogeosciences 5:371-383

Larsen A, Tanaka T, Zubkov MV, Thingstad TF (2008) P-affinity measurements of specific osmotroph populations using cell-sorting flow cytometry. Limnology and Oceanography-Methods 6:355-363

Brussaard CPD, Wilhelm SW, Thingstad F, Weinbauer MG, Bratbak G, Heldal M, Kimmance SA, Middelboe M, Nagasaki K, Paul JH, Schroeder DC, Suttle CA, Vaque D, Wommack KE (2008) Global-scale processes with a nanoscale drive: the role of marine viruses. Isme Journal 2:575-578

Thingstad TF, Havskum H, Zweifel UL, Berdalet E, Sala MM, Peters F, Alcaraz M, Scharek R, Perez M, Jacquet S, Flaten GAF, Dolan JR, Marrase C, Rassoulzadegan F, Hagstrom A, Vaulot D (2007) Ability of a "minimum" microbial food web model to reproduce response patterns observed in mesocosms manipulated with N and P, glucose, and Si. Journal of Marine Systems 64:15-34

Tanaka T, Zohary T, Krom MD, Law CS, Pitta P, Psarra S, Rassoulzadegan F, Thingstad TF, Tselepides A, Woodward EMS, Flaten GAF, Skjoldal EF, Zodiatis G (2007) Microbial community structure and function in the Levantine Basin of the eastern Mediterranean. Deep-Sea Research Part I-Oceanographic Research Papers 54:1721-1743

Lovdal T, Tanaka T, Thingstad TF (2007) Algal-bacterial competition for phosphorus from dissolved DNA, ATP, and orthophosphate in a mesocosm experiment. Limnology and Oceanography 52:1407-1419

Conan P, Sondergaard M, Kragh T, Thingstad F, Pujo-Pay M, Williams P, Markager S, Cauwet G, Borch NH, Evans D, Riemann B (2007) Partitioning of organic production in marine plankton communities: The effects of inorganic nutrient ratios and community composition on new dissolved organic matter. Limnology and Oceanography 52:753-765

Thingstad TF, Law CS, Krom MD, Mantoura RFC, Pitta P, Psarra S, Rassoulzadegan F, Tanaka T, Wassmann P, Riser CW, Zohary T (2006) Response to comment on "Nature of phosphorus limitation in the ultraoligotrophic Eastern Mediterranean". Science 312

Tanaka T, Henriksen P, Lignell R, Olli K, Seppala J, Tamminen T, Thingstad TF (2006) Specific affinity for phosphate uptake and specific alkaline phosphatase activity as diagnostic tools for detecting phosphorus-limited phytoplankton and bacteria. Estuaries and Coasts 29:1226-1241

Martinez-Martinez J, Norland S, Thingstad TF, Schroeder DC, Bratbak G, Wilsow WH, Larsen A (2006) Variability in microbial population dynamics between similarly perturbed mesocosms. Journal of Plankton Research 28:783-791

Zohary T, Herut B, Krom MD, Mantoura RFC, Pitta P, Psarra S, Rassoulzadegan F, Stambler N, Tanaka T, Thingstad TF, Woodward EMS (2005) P-limited bacteria but N and P co-limited phytoplankton in the Eastern Mediterranean - a microcosm experiment. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:3011-3023

Thingstad TF, Ovreas L, Egge JK, Lovdal T, Heldal M (2005) Use of non-limiting substrates to increase size; a generic strategy to simultaneously optimize uptake and minimize predation in pelagic osmotrophs? Ecology Letters 8:675-682

Thingstad TF, Mantoura RFC (2005) Titrating excess nitrogen content of phosphorous-deficient eastern Mediterranean surface water using alkaline phosphatase activity as a bio-indicator. Limnology and Oceanography-Methods 3:94-100

Thingstad TF, Krom MD, Mantoura RFC, Flaten GAF, Groom S, Herut B, Kress N, Law CS, Pasternak A, Pitta P, Psarra S, Rassoulzadegan F, Tanaka T, Tselepides A, Wassmann P, Woodward EMS, Riser CW, Zodiatis G, Zohary T (2005) Nature of phosphorus limitation in the ultraoligotrophic eastern Mediterranean. Science 309:1068-1071

Thingstad TF (2005) Simulating the response to phosphate additions in the oligotrophic eastern Mediterranean using an idealized four-member microbial food web model. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:3074-3089

Tanaka T, Rassoulzadegan F, Thingstad TF (2005) Analyzing the trophic link between the mesopelagic microbial loop and zooplankton from observed depth profiles of bacteria and protozoa. Biogeosciences 2:9-13

Psarra S, Zohary T, Krom MD, Mantoura RFC, Polychronaki T, Stambler N, Tanaka T, Tselepides A, Thingstad TF (2005) Phytoplankton response to a Lagrangian phosphate addition in the Levantine Sea (Eastern Mediterranean). Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:2944-2960

Law CS, Abraham ER, Woodward EMS, Liddicoat MI, Fileman TW, Thingstad TF, Kitidis V, Zohary T (2005) The fate of phosphate in an in situ Lagrangian addition experiment in the Eastern Mediterranean. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:2911-2927

Krom MD, Woodward EMS, Herut B, Kress N, Carbo P, Mantoura RFC, Spyres G, Thingstad TF, Wassmann P, Wexels-Riser C, Kitidis V, Law CS, Zodiatis G (2005) Nutrient cycling in the south east Levantine basin of the eastern Mediterranean: Results from a phosphorus starved system. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:2879-2896

Krom MD, Thingstad TF, Brenner S, Carbo P, Drakopoulos P, Fileman TW, Flaten GAF, Groom S, Herut B, Kitidis V, Kress N, Law CS, Liddicoat MI, Mantoura RFC, Pasternak A, Pitta P, Polychronaki T, Psarra S, Rassoulzadegan K, Skjoldal EF, Spyres G, Tanaka T, Tselepides A, Wassmann P, Riser CW, Woodward EMS, Zodiatis G, Zohary T (2005) Summary and overview of the CYCLOPS P addition Lagrangian experiment in the Eastern Mediterranean. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:3090-3108

Kress N, Thingstad TF, Pitta P, Psarra S, Tanaka T, Zohary T, Groom S, Herut B, Mantoura RFC, Polychronaki T, Rassoulzadegan F, Spyres G (2005) Effect of P and N addition to oligotrophic Eastern Mediterranean waters influenced by near-shore waters: A microcosm experiment. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:3054-3073

Herut B, Zohary T, Krom MD, Mantoura RFC, Pitta P, Psarra S, Rassoulzadegan F, Tanaka T, Thingstad TF (2005) Response of East Mediterranean surface water to Saharan dust: On-board microcosm experiment and field observations. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:3024-3040

Flaten GAF, Skjoldal EF, Krom MD, Law CS, Mantoura RFC, Pitta P, Psarra S, Tanaka T, Tselepides A, Woodward EMS, Zohary T, Thingstad TF (2005) Studies of the microbial P-cycle during a Lagrangian phosphate-addition experiment in the Eastern Mediterranean. Deep-Sea Research Part Ii-Topical Studies in Oceanography 52:2928-2943

Tanaka T, Rassoulzadegan F, Thingstad TF (2004) Orthophosphate uptake by heterotrophic bacteria, cyanobacteria, and autotrophic nanoflagellates in Villefranche Bay, northwestern Mediterranean: Vertical, seasonal, and short-term variations of the competitive relationship for phosphorus. Limnology and Oceanography 49:1063-1072

Metcalfe AM, Pedley TJ, Thingstad TF (2004) Incorporating turbulence into a plankton foodweb model. Journal of Marine Systems 49:105-122

Thyrhaug R, Larsen A, Thingstad TF, Bratbak G (2003) Stable coexistence in marine algal host-virus systems. Marine Ecology-Progress Series 254:27-35

Tanaka T, Rassoulzadegan F, Thingstad TF (2003) Measurements of phosphate affinity constants and phosphorus release rates from the microbial food web in Villefranche Bay, northwestern Mediterranean. Limnology and Oceanography 48:1150-1160

Ovreas L, Bourne D, Sandaa RA, Casamayor EO, Benlloch S, Goddard V, Smerdon G, Heldal M, Thingstad TF (2003) Response of bacterial and viral communities to nutrient manipulations in seawater mesocosms. Aquatic Microbial Ecology 31:109-121

Heldal M, Scanlan DJ, Norland S, Thingstad F, Mann NH (2003) Elemental composition of single cells of various strains of marine Prochlorococcus and Synechococcus using X-ray microanalysis. Limnology and Oceanography 48:1732-1743

Havskum H, Thingstad TF, Scharek R, Peters F, Berdalet E, Sala MM, Alcaraz M, Bangsholt JC, Zweifel UL, Hagstrom A, Perez M, Dolan JR (2003) Silicate and labile DOC interfere in structuring the microbial food web via algal-bacterial competition for mineral nutrients: Results of a mesocosm experiment. Limnology and Oceanography 48:129-140

Hansen AS, Nielsen TG, Levinsen H, Madsen SD, Thingstad TF, Hansen BW (2003) Impact of changing ice cover on pelagic productivity and food web structure in Disko Bay, West Greenland: a dynamic model approach. Deep-Sea Research Part I-Oceanographic Research Papers 50:171-187

Flaten GAF, Castberg T, Tanaka T, Thingstad TF (2003) Interpretation of nutrient-enrichment bioassays by looking at sub-populations in a marine bacterial community. Aquatic Microbial Ecology 33:11-18

Torsvik V, Ovreas L, Thingstad TF (2002) Prokaryotic diversity - Magnitude, dynamics, and controlling factors. Science 296:1064-1066

Thingstad TF, Nielsen TG, Hansen AS, Levinsen H (2002) Control of bacterial production in cold waters. A theoretical analysis of mechanisms relating bacterial production and zooplankton biomass in Disko Bay, Western Greenland. Marine Ecology-Progress Series 228:15-24

Moutin T, Thingstad TF, Van Wambeke F, Marie D, Slawyk G, Raimbault P, Claustre H (2002) Does competition for nanomolar phosphate supply explain the predominance of the cyanobacterium Synechococcus? Limnology and Oceanography 47:1562-1567

Joint I, Henriksen P, Fonnes GA, Bourne D, Thingstad TF, Riemann B (2002) Competition for inorganic nutrients between phytoplankton and bacterioplankton in nutrient manipulated mesocosms. Aquatic Microbial Ecology 29:145-159

Jacquet S, Havskum H, Thingstad TF, Vaulot D (2002) Effects of inorganic and organic nutrient addition on a coastal microbial community (Isefjord, Denmark). Marine Ecology-Progress Series 228:3-14

Benlloch S, Lopez-Lopez A, Casamayor EO, Ovreas L, Goddard V, Daae FL, Smerdon G, Massana R, Joint I, Thingstad F, Pedros-Alio C, Rodriguez-Valera F (2002) Prokaryotic genetic diversity throughout the salinity gradient of a coastal solar saltern. Environmental Microbiology 4:349-360

Thingstad TF (2000) Elements of a theory for the mechanisms controlling abundance, diversity, and biogeochemical role of lytic bacterial viruses in aquatic systems. Limnology and Oceanography 45:1320-1328

Thingstad TF, Rassoulzadegan F (1999) Conceptual models for the biogeochemical role of the photic zone microbial food web, with particular reference to the Mediterranean Sea. Progress in Oceanography 44:271-286

Thingstad TF, Perez M, Pelegri S, Dolan J, Rassoulzadegan F (1999) Trophic control of bacterial growth in microcosms containing a natural community from northwest Mediterranean surface waters. Aquatic Microbial Ecology 18:145-156

Thingstad TF, Havskum H (1999) Bacteria-protist interactions and organic matter degradation under P-limited conditions: Analysis of an enclosure experiment using a simple model. Limnology and Oceanography 44:62-79

Thingstad TF, Zweifel UL, Rassoulzadegan F (1998) P limitation of heterotrophic bacteria and phytoplankton in the northwest Mediterranean. Limnology and Oceanography 43:88-94

Thingstad TF (1998) A theoretical approach to structuring mechanisms in the pelagic food web. Hydrobiologia 363:59-72

Mostajir B, Fagerbakke KM, Heldal M, Thingstad TF, Rassoulzadegan F (1998) Elemental composition of individual pico- and nano-sized marine detrital particles in the northwestern Mediterranean Sea. Oceanologica Acta 21:589-596

Bratbak G, Jacobsen A, Heldal M, Nagasaki K, Thingstad F (1998) Virus production in Phaeocystis pouchetii and its relation to host cell growth and nutrition. Aquatic Microbial Ecology 16:1-9

Thingstad TF, Lignell R (1997) Theoretical models for the control of bacterial growth rate, abundance, diversity and carbon demand. Aquatic Microbial Ecology 13:19-27

Thingstad TF, Hagstrom A, Rassoulzadegan F (1997) Accumulation of degradable DOC in surface waters: Is it caused by a malfunctioning microbial loop? Limnology and Oceanography 42:398-404

Bratbak G, Thingstad TF (1997) Untitled. Aquatic Microbial Ecology 13:1-1

Thingstad TF, Riemann B, Havskum H, Garde K (1996) Incorporation rates and biomass content of C and P in phytoplankton and bacteria in the Bay of Aarhus (Denmark) June 1992. Journal of Plankton Research 18:97-121

Thingstad TF, Havskum H, Garde K, Riemann B (1996) On the strategy of ''eating your competitor'': A mathematical analysis of algal mixotrophy. Ecology 77:2108-2118

Thingstad TF, Dolan JR, Fuhrman JA (1996) Loss rate of an oligotrophic bacterial assemblage as measured by H-3-thymidine and (PO4)-P-32: Good agreement and near-balance with production. Aquatic Microbial Ecology 10:29-36

Heldal M, Norland S, Fagerbakke KM, Thingstad F, Bratbak G (1996) The elemental composition of bacteria: a signature of growth conditions? Marine Pollution Bulletin 33:3-9

Bratbak G, Heldal M, Thingstad TF, Tuomi P (1996) Dynamics of virus abundance in coastal seawater. Fems Microbiology Ecology 19:263-269

Thingstad TF, Rassoulzadegan F (1995) Nutrient Limitations, Microbial Food Webs, and Biological C-Pumps - Suggested Interactions in a P-Limited Mediterranean. Marine Ecology-Progress Series 117:299-306

Dolan JR, Thingstad TF, Rassoulzadegan F (1995) Phosphate Transfer between Microbial Size-Fractions in Villefranche Bay (Nw Mediterranean-Sea), France in Autumn 1992. Ophelia 41:71-85

Thingstad F, Billen G (1994) Microbial-Degradation of Phaeocystis Material in the Water Column. Journal of Marine Systems 5:55-65

Kristiansen S, Thingstad TF, Vanderwal P, Farbrot T, Skjoldal EF (1994) An Emiliania-Huxleyi Dominated Subsurface Bloom in Samnangerfjorden, Western Norway - Importance of Hydrography and Nutrients. Sarsia 79:357-368

Bratbak G, Thingstad F, Heldal M (1994) Viruses and the Microbial Loop. Microbial Ecology 28:209-221

Thingstad TF, Skjoldal EF, Bohne RA (1993) Phosphorus Cycling and Algal-Bacterial Competition in Sandsfjord, Western Norway. Marine Ecology-Progress Series 99:239-259

Thingstad TF, Heldal M, Bratbak G, Dundas I (1993) Are Viruses Important Partners in Pelagic Food Webs. Trends in Ecology & Evolution 8:209-213

Bratbak G, Heldal M, Thingstad TF, Riemann B, Haslund OH (1992) Incorporation of Viruses into the Budget of Microbial C-Transfer - a 1st Approach. Marine Ecology-Progress Series 83:273-280

Thingstad TF, Martinussen I (1991) Are Bacteria Active in the Cold Pelagic Ecosystem of the Barents Sea. Polar Research 10:255-266

Thingstad TF, Sakshaug E (1990) Control of Phytoplankton Growth in Nutrient Recycling Ecosystems - Theory and Terminology. Marine Ecology-Progress Series 63:261-272

Bratbak G, Heldal M, Norland S, Thingstad TF (1990) Viruses as Partners in Spring Bloom Microbial Trophodynamics. Applied and Environmental Microbiology 56:1400-1405

Nygaard K, Borsheim KY, Thingstad TF (1988) Grazing Rates on Bacteria by Marine Heterotrophic Microflagellates Compared to Uptake Rates of Bacterial-Sized Monodisperse Fluorescent Latex Beads. Marine Ecology-Progress Series 44:159-165

Thingstad TF (1987) Utilization of N, P, and Organic C by Heterotrophic Bacteria .1. Outline of a Chemostat Theory with a Consistent Concept of Maintenance Metabolism. Marine Ecology-Progress Series 35:99-109

Pengerud B, Skjoldal EF, Thingstad TF (1987) The Reciprocal Interaction between Degradation of Glucose and Ecosystem Structure - Studies in Mixed Chemostat Cultures of Marine-Bacteria, Algae, and Bacterivorous Nanoflagellates. Marine Ecology-Progress Series 35:111-117

Martinussen I, Thingstad TF (1987) Utilization of Organic-N, Organic-P and Organic-C by Heterotrophic Bacteria .2. Comparison of Experiments and a Mathematical-Model. Marine Ecology-Progress Series 37:285-293

Thingstad TF, Pengerud B (1985) Fate and Effect of Allochthonous Organic Material in Aquatic Microbial Ecosystems - an Analysis Based on Chemostat Theory. Marine Ecology-Progress Series 21:47-62

Bratbak G, Thingstad TF (1985) Phytoplankton-Bacteria Interactions - an Apparent Paradox - Analysis of a Model System with Both Competition and Commensalism. Marine Ecology-Progress Series 25:23-30

Pengerud B, Thingstad F, Tjessem K, Aaberg A (1984) Photoinduced Toxicity of North-Sea Crude Oils toward Bacterial-Activity. Marine Pollution Bulletin 15:142-146

Thingstad T, Pengerud B (1983) The Formation of Chocolate Mousse from Statfjord Crude-Oil and Seawater. Marine Pollution Bulletin 14:214-216

Azam F, Fenchel T, Field JG, Gray JS, Meyerreil LA, Thingstad F (1983) The Ecological Role of Water-Column Microbes in the Sea. Marine Ecology-Progress Series 10:257-263

Skjoldal HR, Dale T, Haldorsen H, Pengerud B, Thingstad TF, Tjessem K, Aaberg A (1982) Oil Pollution and Plankton Dynamics .1. Controlled Ecosystem Experiment During the 1980 Spring Bloom in Lindaspollene, Norway. Netherlands Journal of Sea Research 16:511-523

Gottschal JC, Thingstad TF (1982) Mathematical-Description of Competition between 2 and 3 Bacterial Species under Dual Substrate Limitation in the Chemostat - a Comparison with Experimental-Data. Biotechnology and Bioengineering 24:1403-1418

Bakke T, Dale T, Thingstad TF (1982) Structural and Metabolic Responses of a Subtidal Sediment Community to Water Extracts of Oil. Netherlands Journal of Sea Research 16:524-537

Thingstad TF (1976) Connection between Bacterial-Growth and Division. Bulletin of Mathematical Biology 38:415-423

Thingstad TF, Langeland TI (1974) Dynamics of Chemostat Culture - Effect of a Delay in Cell Response. Journal of Theoretical Biology 48:149-159

Hanssen JF, Thingstad TF, Goksoyr J (1974) Evaluation of Hyphal Lengths and Fungal Biomass in Soil by a Membrane-Filter Technique. Oikos 25:102-107