Hjem
Gunnar Bratbaks bilde

Gunnar Bratbak

Professor
  • E-postGunnar.Bratbak@uib.no
  • Telefon+47 55 58 26 58+47 970 18 791
  • Besøksadresse
    Thormøhlensgt. 53 A/B
  • Postadresse
    Postboks 7803
    5020 Bergen

Forskningen min omfatter følgende tema

  • Struktur og funksjon av marine mikrobielle økosystemer
  • Karbon og næringsomsetting i mikrobielle næringsnett
  • Mikrobiell populasjonsdynamikk og diversitet
  • Den økologiske betydningen av virus i havet
Vitenskapelig artikkel
  • Vis forfatter(e) 2020. Reproducing the virus-to-copepod link in Arctic mesocosms using host fitness optimization. Limnology and Oceanography.
  • Vis forfatter(e) 2020. Bioorthogonal Non-canonical Amino Acid Tagging Combined With Flow Cytometry for Determination of Activity in Aquatic Microorganisms. Frontiers in Microbiology. 11 sider.
  • Vis forfatter(e) 2018. Spatiotemporal dynamics of ammonia-oxidizing Thaumarchaeota in Distinct Arctic water masses. Frontiers in Microbiology. 13 sider.
  • Vis forfatter(e) 2018. Seasonality of the physical and biogeochemical hydrography in the inflow to the Arctic Ocean through Fram Strait. Frontiers in Marine Science. 1-16.
  • Vis forfatter(e) 2018. Seasonality drives microbial community structure, shaping both eukaryotic and prokaryotic host–viral relationships in an Arctic marine ecosystem. Viruses. 1-22.
  • Vis forfatter(e) 2018. Seasonal and annual variability in the phytoplankton community of the Raunefjord, west coast of Norway from 2001-2006. Marine Biology Research. 421-435.
  • Vis forfatter(e) 2018. Is the virus important? And some other questions. Viruses. 1-4.
  • Vis forfatter(e) 2018. Bacterial response to permafrost derived organic matter input in an Arctic fjord. Frontiers in Marine Science. 1-12.
  • Vis forfatter(e) 2018. Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal. 2694-2705.
  • Vis forfatter(e) 2017. Viruses on the menu: The appendicularian Oikopleura dioica efficiently removes viruses from seawater. Limnology and Oceanography. S244-S253.
  • Vis forfatter(e) 2017. Viruses on the menu: The appendicularian Oikopleura dioica efficiently removes viruses from seawater. Limnology and Oceanography.
  • Vis forfatter(e) 2017. Seasonal variations in C:N:Si:Ca:P:Mg:S:K:Fe relationships of seston from Norwegian coastal water: Impact of extreme offshore forcing during winter-spring 2010. Marine Chemistry. 1-12.
  • Vis forfatter(e) 2017. Seasonal dynamics of haptophytes and dsDNA algal viruses suggest complex virus-host relationship. Viruses. 18 sider.
  • Vis forfatter(e) 2017. High-Flow-Rate Impinger for the Study of Concentration, Viability, Metabolic Activity, and Ice-Nucleation Activity of Airborne Bacteria. Environmental Science and Technology. 11224-11234.
  • Vis forfatter(e) 2017. Dampened copepod-mediated trophic cascades in a microzooplankton-dominated microbial food web: A mesocosm study. Limnology and Oceanography. 1031-1044.
  • Vis forfatter(e) 2017. Changes in marine prokaryote composition with season and depth over an Arctic polar year. Frontiers in Marine Science.
  • Vis forfatter(e) 2016. Synechococcus in the Atlantic Gateway to the Arctic Ocean. Frontiers in Marine Science.
  • Vis forfatter(e) 2015. Tsv-N1: A novel DNA algal virus that infects tetraselmis striata. Viruses. 3937-3953.
  • Vis forfatter(e) 2015. On the progress of understanding algal viruses. Perspectives in Phycology. 65-67.
  • Vis forfatter(e) 2015. Contrasting response to nutrient manipulation in Arctic mesocosms are reproduced by a minimum microbial food web model. Limnology and Oceanography. 360-374.
  • Vis forfatter(e) 2015. Characterisation of three novel giant viruses reveals huge diversity among viruses infecting Prymnesiales (Haptophyta). Virology. 180-188.
  • Vis forfatter(e) 2013. Maximum in the middle : nonlinear response of microbial plankton to ultraviolet radiation and phosphorus. PLOS ONE. 11 sider.
  • Vis forfatter(e) 2013. Genomic sequence and analysis of EhV-99B1, a new coccolithovirus from the Norwegian fjords. Intervirology. 60-66.
  • Vis forfatter(e) 2013. Effect of increased pCO(2) on phytoplankton-virus interactions. Biogeochemistry. 391-397.
  • Vis forfatter(e) 2012. Mg2+ as an indicator of nutritional status in marine bacteria. The ISME Journal. 524-530.
  • Vis forfatter(e) 2012. An unaccounted fraction of marine biogenic CaCO3 particles. PLOS ONE. 6 sider.
  • Vis forfatter(e) 2011. Virus infection disturbs cyclin expression, leading to cell cycle arrest in the unicellular marine algae Emiliania huxleyi and Chrysochromulina ericina. African Journal of Microbiology Research. 1801-1807.
  • Vis forfatter(e) 2011. Two new subfamilies of DNA mismatch repair proteins (MutS) specifically abundant in the marine environment. The ISME Journal. 1143-1151.
  • Vis forfatter(e) 2011. The plankton community in Norwegian coastal waters-abundance, composition, spatial distribution and diel variation. Continental Shelf Research. 1500-1514.
  • Vis forfatter(e) 2011. Effects of virus infection on expression of cell cycle regulatory proteins in the unicellular marine algae Emiliania huxleyi. Acta Oceanologica Sinica. 89-95.
  • Vis forfatter(e) 2011. Diversity of airborne bacteria in samples collected using different devices for aerosol collection. Aerobiologia. 107-120.
  • Vis forfatter(e) 2011. Characterisation of the coccolithovirus intein. Marine Genomics. 1-7.
  • Vis forfatter(e) 2008. Response of marine viral populations to a nutrient induced phytoplankton bloom at different pCO2 levels. Biogeosciences. 523-533.
  • Vis forfatter(e) 2008. Phylogenetic analysis of members of the Phycodnaviridae virus family, using amplified fragments of the major capsid protein gene. Applied and Environmental Microbiology. 3048-3057.
  • Vis forfatter(e) 2008. Marine mimivirus relatives are probably large algal viruses. Virology Journal. 8 sider.
  • Vis forfatter(e) 2008. Counterintuitive carbon-to-nutrient coupling in an Arctic pelagic ecosystem. Nature. 387-391.
  • Vis forfatter(e) 2007. Phaeocystis and its interaction with viruses. Biogeochemistry. 201-215.
  • Vis forfatter(e) 2007. Molecular dynamics of Emiliania huxleyi and cooccurring viruses during two separate mesocosm studies. Applied and Environmental Microbiology. 554-562.
  • Vis forfatter(e) 2006. Variability in microbial population dynamics between similarly perturbed mesocosms. Journal of Plankton Research. 783-791.
  • Vis forfatter(e) 2005. The marine algal virus PpV01 has an icosahedral capsid with T=219 quasisymmetry. Journal of Virology. 9236-9243.
  • Vis forfatter(e) 2004. Spring phytoplankton bloom dynamics in Norwegian coastal waters: Microbial community succession and diversity. Limnology and Oceanography. 180-190.
  • Vis forfatter(e) 2004. Spring phytoplankton bloom dynamics in Norwegian coastal waters: Microbial community succession and diversity. Limnology and Oceanography. 180-190.
  • Vis forfatter(e) 2004. Discovery of a dsRNA virus infecting the marine photosynthetic protist Micromonas pusilla. Virology. 280-291.
  • Vis forfatter(e) 2004. Abundance and dynamics of free flagellate scales in marine costal ecosystems. Aquatic Microbial Ecology. 55-62.
  • Vis forfatter(e) 2003. Virioplankton community structure along a salinity gradient in a solar saltern. Extremophiles. 347-351.
  • Vis forfatter(e) 2003. Stable coexistence in marine algal host-virus systems. Marine Ecology Progress Series. 27-35.
  • Vis forfatter(e) 2003. Effects of ultraviolet radiation on marine virus–phytoplankton interactions. FEMS Microbiology Ecology. 279-289.
  • Vis forfatter(e) 2002. Isolation and characterization of a virus that infects Emiliania huxleyi (Haptophyceae). Journal of Phycology. 767-774.
  • Vis forfatter(e) 2002. Flow cytometric Analysis of an E. Huxleyi bloom terminated by viral infection. Aquatic Microbial Ecology. 110-124.
  • Vis forfatter(e) 2002. Elemental composition (C,N,P)and cell volume of exponentially growing and nutrient limited bacterioplankton. Applied and Environmental Microbiology. 2965-2971.
  • Vis forfatter(e) 2002. Cell cycle dependent virus production in marine phytoplankton. Journal of Phycology. 338-343.
  • Vis forfatter(e) 2001. Population dynamics and diversity of phytoplankton, bacteria and viruses in a seawater enclosure. Marine Ecology Progress Series. 47-57.
  • Vis forfatter(e) 2001. Microbial population dynamics and diversity during a bloom of the marine coccolithophorid Emiliania huxleyi (Haptophyta). Marine Ecology Progress Series. 39-46.
  • Vis forfatter(e) 2001. Isolation and characterization of two viruses with large genome size infecting Chrysochromulina ericina (Prymneriophyceae) and Pyramimonas orientalis (Prasinophyceae). Virology. 272-280.
  • Vis forfatter(e) 2001. Flow cytometric analysis of phytoplankton viability following viral infection. Aquatic Microbial Ecology. 157-166.
  • Vis forfatter(e) 2001. Effects of concentrated viral communities on photosynthesis and community composition of cooccurring benthic microalgae and phytoplankton. Aquatic Microbial Ecology. 1-10.
  • Vis forfatter(e) 2000. Virus rule the waves - the smallest and most abundant members of marine ecosystems. Microbiology Today. 171-173.
  • Vis forfatter(e) 2000. Temporal variability of viruses, bacteria, phytoplankton and zooplankton in the western English Channel off Plymouth. MANGLER.
  • Vis forfatter(e) 2000. Flow cytometric detection of viruses. Journal of Virological Methods. 175-182.
  • Vis forfatter(e) 1999. Flow cytometric analysis of virus infection in two marine phytoplankton species, Micromonas pusilla (Prasinophyceae) and Phaeocystis pouchetii (Prymnesiophyceae). Journal of Phycology. 941-948.
  • Vis forfatter(e) 1999. Enumeration of Marine Viruses in Culture and Natural Samples by Flow Cytometry. Applied and Environmental Microbiology. 45-52.
  • Vis forfatter(e) 1998. Virus production in Phaeocystis pouchetii and its relation to host cell growth and nutrition. Aquatic Microbial Ecology. 1-9.
  • Vis forfatter(e) 1998. Virus production in Phaeocystis pouchetii and its relation to host cell growth and nutrition. Aquatic Microbial Ecology. 1-9.
  • Vis forfatter(e) 1998. Viral lysis of Phaeocystis pouchetii and bacterial secondary production. Aquatic Microbial Ecology. 11-16.
  • Vis forfatter(e) 1998. Viral lysis of Phaeocystis pouchetii and bacterial secondary production. Aquatic Microbial Ecology. 11-16.
  • Vis forfatter(e) 1998. Elevated production of dimethylsulfide resulting from viral infection of cultures of <EM>Phaeocystis pouchetii</EM>. Limnology and Oceanography. 1389-1393.
  • Vis forfatter(e) 1997. Occurrence of virus-like particles in the Dead Sea. Extremophies. 143-149.
  • Vis forfatter(e) 1997. Bacterial population dynamics in a meromictic lake. Applied and Environmental Microbiology. 2181-2188.
  • Vis forfatter(e) 1996. Viral control of Emiliania huxleyi blooms? Journal of Marine Systems. 75-81.
  • Vis forfatter(e) 1996. The elemental composition of bacteria: a signature of growth conditions? Marine Pollution Bulletin. 3-9.
  • Vis forfatter(e) 1996. Isolation and characterization of a virus infecting Phaeocystis pouchetii (Prymnesiophyceae). Journal of Phycology. 923-927.
  • Vis forfatter(e) 1996. Isolation and characterisation of a virus infecting Phaeocystis pouchetii (Haptophyceae). Journal of Phycology. 923-927.
  • Vis forfatter(e) 1996. Factors influencing the loss of bacteria in preserved seawater samples. Marine Ecology Progress Series. 305-310.
  • Vis forfatter(e) 1996. Dynamics of virus abundance in coastal seawater. FEMS Microbiology Ecology. 263-269.
  • Vis forfatter(e) 1995. Viral activity in relation to Emiliania huxleyi blooms: a possible mechanism of DMSP release? Marine Ecology Progress Series. 133-142.
  • Vis forfatter(e) 1995. Viral activity in relation to Emiliania huxleyi blooms: a possible mechanism of DMSP release? Marine Ecology Progress Series. 133-142.
  • Vis forfatter(e) 1995. Nutritional enrichment of a microbial community: The effects on activity, elemental composition, community structure and virus production. FEMS Microbiology Ecology. 123-134.
  • Vis forfatter(e) 1994. Determination of bacterial cell number and cell volume by means of flow cytometer, transmission electron microscopy, and epifluorescene microscopy. Journal of Microbiological Methods.
  • Vis forfatter(e) 1993. Viral mortality of the marine algae Emiliania huxleyi (Haptophyceae) and termination of algal blooms. Marine Ecology Progress Series. 39-48.
  • Vis forfatter(e) 1993. Viral mortality of the marine alga Emiliania huxleyi (Haptophyceae) and termination of algal blooms. Marine Ecology Progress Series. 39-48.
  • Vis forfatter(e) 1993. Are viruses important partners in pelagic food webs? Trends in Ecology & Evolution. 209-213.
  • Vis forfatter(e) 1992. Roles of virus/phage in marine microbial ECOSYSTEMS. Short Communications of the 1991 International Biotechnology Conferense. 146-150.
  • Vis forfatter(e) 1992. Incorporation of viruses into the budget of microbial C-transfer. A first approach. Mar.Ecol.Prog.. 273-280.
  • Vis forfatter(e) 1991. Production and decay of viruses in aquatic environments. Marine Ecology Progress Series. 205-212.
  • Vis forfatter(e) 1990. Viruses as Partners in Spring Bloom Microbial Trophodynamics. Applied and Environmental Microbiology. 1400-1405.
  • Vis forfatter(e) 1990. Virus: Spiller de noen økologisk rolle? Naturen. 148-152.
  • Vis forfatter(e) 1990. Enumeration and biomass estimation on planktonic bacteria and viruses by transmission electron microscopy. Applied and Environmental Microbiology. 352-356.
  • Vis forfatter(e) 1989. High abundance of viruses found in aquatic environments. Nature. 467-468.
  • Vis forfatter(e) 1989. High abundance of viruses found in aquatic environments. Nature. 6233-6234.
Faglig foredrag
  • Vis forfatter(e) 2017. A year in the microbial life of a changing Arctic Ocean.
  • Vis forfatter(e) 2010. Use of flow cytometry in air and marine microbiological research.
Populærvitenskapelig foredrag
  • Vis forfatter(e) 1994. Viruses - the new players in the game...
  • Vis forfatter(e) 1994. Virus og bakterier sin økologiske rolle i akvatiske miljøer.
  • Vis forfatter(e) 1994. Virus i vann.
  • Vis forfatter(e) 1994. The possible impact of viruses on marine food webs.
  • Vis forfatter(e) 1994. The ecological role of virus.
  • Vis forfatter(e) 1994. Oppdagelsen av marine virus.
  • Vis forfatter(e) 1993. Carbon budget in the microbial/viral loop.
Vitenskapelig foredrag
  • Vis forfatter(e) 2020. Interactions between the filter-feeding appendicularian Oikopleura dioica and the abundance and fate of marine viruses​.
  • Vis forfatter(e) 2017. from light to dark and shallow to deep: Metagenomic analysis of total virus assemblages from arctic seawater provides a first glance of season- and depth-driven virus diversity and dynamics.
  • Vis forfatter(e) 2017. Synechococcus in the Arctic Ocean.
  • Vis forfatter(e) 2017. Protist community structure in Atlantic Arctic through the year as revealed by high throughput sequencing.
  • Vis forfatter(e) 2017. Protist community structure in Atlantic Arctic through the year as revealed by high throughput sequencing.
  • Vis forfatter(e) 2017. Microbial Food web structure in a changing Arctic.
  • Vis forfatter(e) 2017. Light and depth - main drivers of marine virus diversity and dynamics in the Arctic - Metagenomic analysis of total viral assemblages from surface to the deep .
  • Vis forfatter(e) 2016. Role of appendicularians in aquatic viral ecology: particle trapping, ingestion and consequences for the marine microbial food web.
  • Vis forfatter(e) 2016. Development of a semi-automated method for metagenomic characterization of total virus assemblages from seasonal high-latitude seawater samples.
  • Vis forfatter(e) 2014. Diversity and seasonal dynamics of marine haptophytes and their viruses.
  • Vis forfatter(e) 2013. Diversity and dynamics of marine haptophytes and their viruses.
  • Vis forfatter(e) 2011. Geographic segregation and mechanisms of genetic evolution between coccolithovirus populations: a genomic study.
  • Vis forfatter(e) 2008. Increased level of CO2 in the ecosphere may modify the structure of marine plankton.
  • Vis forfatter(e) 2007. Virus in aquatic ecosystems: Who are they and what are they doing?
  • Vis forfatter(e) 2007. Virus Ecology.
  • Vis forfatter(e) 2007. Total numbers and activity of environmental airborne bacteria.
  • Vis forfatter(e) 2006. The global role of viruses in bloom termination, biodiversity and marine ecology.
  • Vis forfatter(e) 2006. Algal Viruses –a Diverse Group with Ecological Impact.
  • Vis forfatter(e) 2005. X-ray microanalyses of bacteria at the single cell level: Does elemental composition of cells relate to activity and nutritional status of cells?
  • Vis forfatter(e) 2005. Single cell analysis: X-ray microanalysis in TEM.
  • Vis forfatter(e) 2005. Single cell analysis: X-ray microanalysis in TEM.
  • Vis forfatter(e) 2005. Methods in viral ecology.
  • Vis forfatter(e) 2005. An overview of algal viruses.
  • Vis forfatter(e) 2004. Viral diversity in solar saltern.
  • Vis forfatter(e) 2003. Vyer for Fremtiden?
  • Vis forfatter(e) 2003. Counting and Characterization of Microalgae, Bacteria and Virus in Marine Ecosystems.
  • Vis forfatter(e) 2002. Marine phytoplankton viruses - ecology, physiology and host virus interactions.
  • Vis forfatter(e) 2002. Marine Phytoplankton Viruses-Ecology, Physiology and Host Virus Interactions.
  • Vis forfatter(e) 2002. MICROALGAL VIRUS ECOLOGY.
  • Vis forfatter(e) 2002. Large Algal Viruses, Characterization.
  • Vis forfatter(e) 2000. Virus detection and enumeration using flow cytometry.
  • Vis forfatter(e) 2000. Population dynamics in the virioplankton community during marine algal blooms.
  • Vis forfatter(e) 2000. Persistent virus infection in marine phytoplankton.
  • Vis forfatter(e) 2000. Isolation and characterization of two marine viruses infecting Chrysochromulina ericina and Pyramimonas orientalis.
  • Vis forfatter(e) 2000. Is Virus Production in Marine Algae Cell-cycle Dependent?
  • Vis forfatter(e) 2000. Infection of Micromonas pusilla (Prasinophyceae) by a dsRNA virus.
  • Vis forfatter(e) 2000. Extracellular Release of DNA During High-Dose PBCV-1 Infection of Chlorella.
  • Vis forfatter(e) 2000. Diversity and succession of algae, virus and bacteria in nutrient enriched seawater enclosures.
  • Vis forfatter(e) 2000. Bacterial population dynamics and diversity after viral lysis of three different algal species.
  • Vis forfatter(e) 2000. Bacterial population dynamics and diversity after viral lysis of three different algal species.
  • Vis forfatter(e) 1999. Viral control of phytoplankton blooms.
  • Vis forfatter(e) 1999. Phytoplankton Viruses - Ecology And Host Virus Interactions.
  • Vis forfatter(e) 1999. Flow Cytometric Analysis Of Virus Infected Phytoplankton.
  • Vis forfatter(e) 1999. Algal Viruses - Characterization of new viruses and Quantification by Flow Cytometry and Pulsefield Gelelectrophoresis.
  • Vis forfatter(e) 1998. Isolates of marine bacteria: elemental content relates to growth conditions [poster].
  • Vis forfatter(e) 1998. Enumeration of viruses in marine samples by flow cytometry [poster].
  • Vis forfatter(e) 1998. Elevated production of dimethylsulfide resulting from viral infection of cultures of <EM>Phaeocystis pouchetii</EM>.
  • Vis forfatter(e) 1998. Ecology of algal host-virus interactions.
  • Vis forfatter(e) 1998. Ecology of Phaeocystis host-virus interactions.
  • Vis forfatter(e) 1998. Ecology of <EM>Phaeocystis</EM> host-virus interactions.
  • Vis forfatter(e) 1998. Detection of <EM>Phaeocytus</EM>-virus by PCR.
  • Vis forfatter(e) 1998. Characterization of virus infected phytoplankton cells by FCN.
  • Vis forfatter(e) 1998. Bacterial activity measured by different single-cell methods.
  • Vis forfatter(e) 1998. Algevirus.
  • Vis forfatter(e) 1998. A PCR approach to specific quantification of <EM>Phaeocytis</EM> virus.
  • Vis forfatter(e) 1997. Viral impact on algal blooms.
  • Vis forfatter(e) 1997. Trophic interactions controlling the diversity in pelagic microbial food webs.
  • Vis forfatter(e) 1997. The marine microbial ecology revised.
  • Vis forfatter(e) 1997. Hutchinson's paradox reversed? Is the bacterioplankton diversity lower than predicted by steady state models?
  • Vis forfatter(e) 1996. Viral lysis and bacterivory as prokaryotic loss factors along a salinity gradient.
  • Vis forfatter(e) 1996. Preliminary analysis of structural proteins and DNA of PpV-1, a large dsDNA virus which is infectious to Phaeocystis pouchetii.
  • Vis forfatter(e) 1996. Oceanic Dimethyl sulphide: Elevated Production During Virus Infection of Phaeocystis pouchetii (Hariot) Lagerheim.
  • Vis forfatter(e) 1996. Isolation of a virus infecting Phaeocystis pouchetii (Haptophyceae).
  • Vis forfatter(e) 1996. Bacterial population dynamics in a meromictic lake Sælenvatnet.
  • Vis forfatter(e) 1995. Quantitative analysis of carbon, nitrogen, oxygen and phosphorous in single bacteria by use of X-ray - TEM.
  • Vis forfatter(e) 1995. Analytical use of Transmission Electron Microscope (TEM) in aquatic microbial ecology.
  • Vis forfatter(e) 1995. Algevirus - kontrollerer de oppblomstringer?
  • Vis forfatter(e) 1993. Virus and the Microbial Loop, Paradigms and Paradoxes in the microbial loop.
  • Vis forfatter(e) 1993. Decay and fate of aquatic viruses.
Leder
  • Vis forfatter(e) 2008. Global-scale processes with a nanoscale drive: the role of marine viruses. The ISME Journal. 575-578.
Anmeldelse
  • Vis forfatter(e) 2016. Microbial Oceanography. Viral strategies at sea. Nature. 454-455.
Fagbok
  • Vis forfatter(e) 1995. Viruses - the new players in the game; their ecologial role and could they mediate genetic exchange by transduction? Springer, Berlin.
Kompendium
  • Vis forfatter(e) 2001. BIO 101 Basal Biologi Laboratorieøvelser i Cellebiologi.
  • Vis forfatter(e) 1997. Program and group reports from course in Microbial activity and diversity in aquatic interphases.
Doktorgradsavhandling
  • Vis forfatter(e) 2017. Microbial dynamics in high latitude ecosystems. Responses to mixing, runoff and seasonal variation a rapidly changing environment.
  • Vis forfatter(e) 1988. Production, amount and fate of bacterial biomass in marine waters : a discussion of field methods and results in a laboratory perspective.
Intervju
  • Vis forfatter(e) 2002. En Munnfull Virus.
  • Vis forfatter(e) 2001. Stråler algene til døde.
  • Vis forfatter(e) 2001. Strålende våpen avliver dødsalger.
Dokumentar
  • Vis forfatter(e) 2018. Samler alger, bakterier og virus. Blogg: Arven etter Nansen.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vis forfatter(e) 2008. Aquatic phage ecology.
  • Vis forfatter(e) 2003. X-ray microanalysis of native aquatic bacteria. 7 sider.
  • Vis forfatter(e) 1993. Total Counts of Viruses in Aquatic Environments.
  • Vis forfatter(e) 1993. Microscope methods for measuring bacterial biovolume: epifluorescence microscopy, scanning electron microscopy and transmission electron microscopy.
Poster
  • Vis forfatter(e) 2019. Trophic interactions between filter-feeding mesozooplankton and the Emiliania huxleyi virus.
  • Vis forfatter(e) 2019. Biological drivers of bacterial communities in the Arctic water inflow region .
  • Vis forfatter(e) 2018. Bacterial Viability and Vitality: Application of Click Chemistry in Flow Cytometry.
  • Vis forfatter(e) 2017. How permafrost organic matter input in an Arctic fjord alters the bacterial community structure.
  • Vis forfatter(e) 2016. Marine viral diversity in the Arctic - from surface to deep waters through the long polar night and day.
  • Vis forfatter(e) 2016. A year in the microbial life of a changing Arctic Ocean.
  • Vis forfatter(e) 2005. Mg2+ plays an important role in marine bacteria.
  • Vis forfatter(e) 2005. Bacterial physiology at the single cell level: do elemental composition reveals any signatures related to growth, dormancy or death?
  • Vis forfatter(e) 2003. Dynamics and succession during the spring bloom in the Norwegian coastal current, with emphasis on the smallest participants.
  • Vis forfatter(e) 2002. Can UV C-radiation restrict toxic algal blooms? Experimental studies for the determination of suitable radiation dose and fractions of water treated.
  • Vis forfatter(e) 2001. The Structure of PpV01, a Marine Algal Virus With a T=219 Capsid.
  • Vis forfatter(e) 2001. Dynamics and succession during the spring bloom in Norwegian coastal current, with emphasis on the smallest participants.
  • Vis forfatter(e) 2000. Vedvarende virusinfeksjon i marint fytoplankton.
  • Vis forfatter(e) 2000. A method for diversity analysis of viruses in small volumes of seawater.
  • Vis forfatter(e) 1999. Virus i Havet.
  • Vis forfatter(e) 1995. Viral control of algal blooms?
  • Vis forfatter(e) 1995. Detection of polyphosphate bodies in bacteria: fluorescens microscopy and X-ray microanalysis.
Vitenskapelig oversiktsartikkel/review
  • Vis forfatter(e) 2018. Simple models combining competition, defence and resource availability have broad implications in pelagic microbial food webs. Ecology Letters. 1440-1452.

Se fullstendig oversikt over publikasjoner i CRIStin.

Sandaa R.-A., Storesund JE, Olesin E, Paulsen ML, Larsen A, Bratbak G and Ray JL. Seasonality drives microbial community structure, shaping both eukaryotic and prokaryotic host-viral relationships in an Arctic marine ecosystem. Viruses 2018, 10(12), 715; https://doi.org/10.3390/v10120715

Sandaa R.-A. and Bratbak G 2018. Is the Virus Important? And Some Other Questions viruses 2018, 10, 442; doi:10.3390/v10080442

Våge S, Bratbak G, Egge J, Heldal M, Larsen A, Norland S, Paulsen ML Pree B. Sandaa, R-A. Skjoldal EF, Tsagaraki T, Øvreås L, Thingstad TF. 2018. Simple models combining competition, defence and resource availability have broad implications in pelagic microbial food webs. Ecology Letters. doi: 10.1111/ele.13122

Müller O, Seuthe L, Bratbak G, Paulsen ML. Bacterial response to permafrost derived organic matter input in an Arctic fjord.  Front. Mar. Sci., 06 August 2018 doi: 10.3389/fmars.2018.00263

Tsagaraki TM, Pree B, Leiknes Ø, Larsen A, Bratbak G, Øvreås L, Egge JK, Spanek R, Paulsen ML, Olsen Y, Vadstein O and Thingstad TF. 2018. Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. ISME J DOI: 10.1038/s41396-018-0217-7

Achim Randelhoff, Marit Reigstad, Melissa Chierici, Arild Sundfjord, Vladimir Ivanov, Mattias Cape, Maria Vernet, Jean-Eric Tremblay, Gunnar Bratbak, Svein Kristiansen. 2018. Seasonality of the Physical and Biogeochemical Hydrography of the Fram Strait Branch. Front. Mar. Sci. 5:224. doi: 10.3389/fmars.2018.00224

Oliver Müller, Bryan Wilson, Maria L. Paulsen, Agnieszka Rumińska, Hilde R. Armo, Gunnar Bratbak, Lise Øvreås. 2018. Spatiotemporal dynamics of ammonia-oxidizing Thaumarchaeota in distinct Arctic water masses. Front. Microbiol. 9:24. doi: 10.3389/fmicb.2018.00024

Ana I. Paulino, J.K. Egge, A. Larsen, S. R. Erga, G. Bratbak, D. Evensen 2018. Seasonal and annual variability in the phytoplankton community of raunefjord, westcoast of Norway from 2001-2006. Marine Biology Research doi: 10.1080/17451000.2018.1426863

Lawrence J, Töpper J, Petelenz-Kurdziel E, Bratbak G, Larsen A , Thompson E, Troedsson C, Ray JL. 2017. Viruses on the menu: The appendicularian Oikopleura dioica efficiently removes viruses from seawater. Limnology and Oceanography. doi: 10.1002/lno.10734

Tina Šantl-Temkiv, Pierre Amato, Ulrich Gosewinkel, Runar Thyrhaug, Anaïs Charton, Benjamin Chicot, Kai Finster, Gunnar Bratbak, and Jakob Löndahl. (2017) A high-flow-rate impinger for the study of concentration, viability, activity, and ice nucleation activity of airborne bacteria. Environmental Science & Technology. 2017, 51, 11224−11234.  10.1021/acs.est.7b01480

Svein Rune Erga, Stig Bjarte Haugen, Gunnar Bratbak, Jorun Karin Egge, Mikal Heldal, Kjell Arne Mork, Svein Norland. 2017. Seasonal variations in C:N:Si:Ca:P:Mg:S:K:Fe relationships of seston from Norwegian coastal water: Impact of extreme offshore forcing during winter-spring 2010. Marine Chemistry 196 (2017) 1–12. 10.1016/j.marchem.2017.07.001

Torill Vik Johannessen, Aud Larsen, Gunnar Bratbak, António Pagarete, Bente Edvardsen, Elianne S. Egge, Ruth-Anne Sandaa 2017. Seasonal dynamics of haptophytes and algal viruses suggest complex virus-host relationship. Viruses, 9, 84; doi:10.3390/v9040084

Bryan Wilson, Oliver Müller, Eva-Lena Nordmann, Lena Seuthe, Gunnar Bratbak, Lise Øvreås. 2017. Changes in marine prokaryote composition with season and depth over an Arctic polar year. Front. Mar. Sci. 4:95. doi: 10.3389/fmars.2017.00095

Pree P, Larsen A, Egge JK, Simonelli P, Madhusoodhanan R, Tsagaraki T, Våge S, Erga SR, Bratbak G, Thingstad TF. 2016. 2016. Dampened copepod-mediated trophic cascades in a microzooplankton-dominated microbial food web: a mesocosm study. Limnology and Oceanography doi: 10.1002/lno.10483

Maria Lund Paulsen, Hugo Doré, Laurence Garczarek, Lena Seuthe, Oliver Müller, Ruth-Anne Sandaa, Gunnar Bratbak, Aud Larsen. 2016. Synechococcus in the Atlantic gateway to the Arctic Ocean. Frontiers in Marine Science. doi: 10.3389/fmars.2016.00191

Thingstad, TF and Bratbak, G 2016. Microbial Oceanography. Viral strategies at sea. Nature 531: 454-455

Gallot-Lavallée L, Pagarete A, Legendre M, Santini S, Sandaa R-A, Himmelbauer H, Ogata H, Bratbak G, Claverie J-M. 2015. The 474-kilobase-pair complete genome sequence of CeV-01B, a virus infecting Haptolina (Chrysochromulina) ericina (Prymnesiophyceae). Genome Announc 3(6):e01413-15. doi:10.1128/genomeA.01413-15.

António Pagarete, Théophile Grébert, Olga Stepanova, Ruth-Anne Sandaa and Gunnar Bratbak (2015). Tsv-N1: A Novel DNA Algal Virus that Infects Tetraselmis striata. Viruses 7:3937-3953; doi:10.3390/v7072806

Bratbak, G (2015) On the progress of understanding algal viruses. Perspectives in Phycology. 10.1127/pip/2015/0035

Larsen A, Egge JK, Nejstgaard JC, Capua ID, Thyrhaug R, Bratbak G, Thingstad TF (2015) Contrasting response to nutrient manipulation in Arctic mesocosms are reproduced by a minimum microbial food web model. Limnol. Oceanog. 60:360-374.

Johannessen TV, Bratbak G, Larsen A, Ogata H, Egge ES, Edvardsen B, Eikrem W, Sandaa RA (2015) Characterisation of three novel giant viruses reveals huge diversity among viruses infecting Prymnesiales (Haptophyta). Virology 476:180–188.

Juan Manuel Medina-Sánchez, José Antonio Delgado-Molina, Gunnar Bratbak, Francisco José Bullejos, Manuel Villar-Argaiz and Presentación Carrillo (2013). Maximum in the middle: Nonlinear response of microbial plankton to ultraviolet radiation and phosphorus. PLoS ONE 8(4): e60223. doi:10.1371/journal.pone.0060223

Heldal M, Norland N, Erichsen ES, Thingstad TF and Bratbak G (2012) An unaccounted fraction of marine biogenic CaCO3 particles. PLOS ONE 7 e47887, doi:10.1371/journal.pone.0047887

Pagarete, A., Lanzén, A., Puntervoll, P., Sandaa, R.A., Larsen, A., Larsen, J.B., Allen, M.J., Bratbak G. 2012. Genomic sequence and analysis of ehv-99b1, a new coccolithovirus from the Norwegian fjords. Intervirology DOI: 10.1159/000341611.

Carreira C., Heldal M. and Bratbak. G. 2012. Effect of increased pCO2 on phytoplankton- virus interactions. Biogeochemistry DOI 10.1007/s10533-011-9692-x

Mikal Heldal, Svein Norland, Egil Severin Erichsen, Ruth-Anne Sandaa, Aud Larsen, Frede Thingstad and Gunnar Bratbak. 2012. Mg2+ as indicator of nutritional status in marine bacteria. The ISME Journal. 6:524-530 doi:10.1038/ismej.2011.130

Gunnar Bratbak, Stéphan Jacquet, Aud Larsen, Lasse H. Pettersson, Andrey F. Sazhin and Runar Thyrhaug. 2011 The plankton community in Norwegian coastal waters - abundance, composition, spatial distribution and diel variation. Continental Shelf Research doi:10.1016/j.csr.2011.06.014

Allen, Michael J., Lanzén, Anders and Bratbak, Gunnar. 2011. Characterisation of the coccolithovirus intein. Marine Genomics. Marine Genomics. doi:10.1016/j.margen.2010.11.001

Hiroyuki Ogata, Jessica Ray, Kensuke Toyoda, Ruth-Anne Sandaa, Keizo Nagasaki, Gunnar Bratbak, Jean-Michel Claverie. 2011. Girus-encoded MutS subfamilies abundant in the marine environment. The ISME Journal doi:10.1038/ismej.2010.210

Camilla Fahlgren, Gunnar Bratbak, Ruth-Anne Sandaa, Runar Thyrhaug & Ulla Li Zweifel 2011. Diversity of airborne bacteria in samples collected using different devices for aerosol collection. Aerobiologia 27:107–120

Nagasaki, K and Bratbak, G 2010. Isolation of viruses infecting photosynthetic and non-photosynthetic protists. Limnology and Oceanography: Methods, Manual of Aquatic Viral Ecology (Chapter 10, 2010, 92–101) DOI 10.4319/mave.2010.978-0-9845591-0-7.92

T. F. Thingstad , R. G. J. Bellerby, G. Bratbak, K. Y. Børsheim, J. K. Egge, M. Heldal, A. Larsen, C. Neill, J. Nejstgaard, S. Norland, R.-A. Sandaa, E. F. Skjoldal, T. Tanaka, R. Thyrhaug & B. Töpper. 2008. Counterintuitive carbon-to-nutrient coupling in an Arctic pelagic ecosystem. Nature 455:387-390.

Larsen JB, Larsen A, Bratbak G and Sandaa R-A. 2008. Phylogenetic analysis of members of the Phycodnaviridae virus family using amplified fragments of the major capsid protein gene.  Appl Environ Microbiol. 74: 3048–3057.

Larsen, J. B., Larsen, A., Thyrhaug, R., Bratbak, G and Sandaa, R-A. 2008. Response of marine viral populations to a nutrient induced phytoplankton bloom at different pCO2 levels. Biogeosciences 5: 523–533.

Corina PD Brussaard, Steven W Wilhelm, Frede Thingstad, Markus G Weinbauer, Gunnar Bratbak, Mikal Heldal, Susan A Kimmance, Mathias Middelboe, Keizo Nagasaki, John H Paul, Declan C Schroeder, Curtis A Suttle, Dolors Vaque´ and K Eric Wommack. 2008.  Commentary: Global-scale processes with a nanoscale drive: the role of marine viruses. The ISME Journal 1–4.

Monier A, Larsen JB, Sandaa R-A, Bratbak G, Claverie J-M and Ogata H. 2008. Marine mimivirus relatives are probably large algal viruses. Virology Journal 2008, 5:12 doi:10.1186/1743-422X-5-12

Brussaard CPD, G Bratbak, AC Baudoux & P Ruardij 2007. Phaeocystis and its interaction with viruses. Biogeochemistry 83: 201-215.

Joaquin Martínez Martínez, Declan C. Schroeder, Aud Larsen, Gunnar Bratbak and William H. Wilson. 2007. Molcular dynamics of Emliania huxleyi and their co-occurring viruses during two separate mesocosm studies. Appl. Environ. Microbiol. 73:554-562

J. Martínez-Martínez, S. Norland T. F. Thingstad, D.C. Schroeder, G. Bratbak, W. H. Wilson, A. Larsen. 2006. Variability in microbial population dynamics between similarly perturbed mesocosms. Journal of Plankton Research. 28:783-791.

Xiaodong Yan, Paul R. Chipman, Tonje Castberg, Gunnar Bratbak, and Timothy S. Baker. 2005 The Marine Algal Virus PpV01 Has an Icosahedral Capsid with T_219 Quasisymmetry. Journal of Virology 79: 9236–9243.

Landa H, Bratbak G, Heldal M. 2004. Abundance and dynamics of free flagellate scales in marine costal ecosystems. Aquatic Microbial Ecology 37:55-62

Brussaard CPD, Noordeloos AAM, Sandaa R-A, Heldal M, Bratbak G. 2004. Discovery of a dsRNA virus infecting the marine photosynthetic protist Micromonas pusilla. Virology 319: 280-291.

Larsen, A., Fonnes, A., Sanda, R.-S., Casberg, T., Thyrhaug, R., Erga. SE., Jacquet, S and Bratbak, G. 2004.  Spring phytoplankton bloom dynamics in Norwegian coastal waters: Microbial community succession and diversity. Limnol. Oceanogr. 49:180-190.

Ruth-Anne Sandaa, Evy Foss Skjoldal and Gunnar Bratbak. 2003. Virioplankton community structure along a salinity gradient in a solar saltern. Extremophiles 7:347-351.

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

Stéphan Jacquet and Gunnar Bratbak. 2003. Effects of ultraviolet radiation on marine virus–phytoplankton interactions. FEMS Microbiology Ecology 44:279-289

Tonje Castberg, Runar Thyrhaug, Aud Larsen, Ruth-Anne Sandaa, Mikal Hedal, James L. Van Etten, Gunnar Bratbak. 2002. Isolation and characterization of a virus that infects Emiliania huxleyi (Haptophyceae). Journal of Phycology 38:767-774.

Vrede, K., Heldal, H., Norland, S. and Bratbak, G. 2002. The Elemental Composition (C, N, P) and Cell Volume of Expontially Growing and Nutrient Limited Bacterioplankton. Appl. Environ Microbiol. 68:2965-2971

Stéphan Jacquet, Mikal Heldal, Debora Iglesias-Rodriguez, Aud Larsen, William Wilson, Gunnar Bratbak. 2002.  Flow cytometric Analysis of an E. Huxleyi bloom terminated by viral infection. Aquatic Microbial Ecology 27:111-124.

Thyrhaug  R., Larsen, A, Brussaard, C.P.D., Bratbak, G. 2002. Cell cycle dependent virus production in marine phytoplankton. Journal of Phycology 38:338-343

Brussaard C, Marie D, Thyrhaug R, Bratbak G. 2001 Flow cytometric analysis of phytoplankton viability following viral infection. Aquat. Microb. Ecol. 26:157-166.

Ruth-Anne Sandaa, Mikal Heldal, Tonje Castberg, Runar Thyrhaug and Gunnar Bratbak. 2001. Isolation and characterization of two viruses with large genome size infecting Chrysochromulina ericina (Prymnesiophyceae) and Pyramimonas orientalis Prasinophyceae). Virology 290:272-280.

Larsen, A., Castberg, T., Sandaa, R-A., Brussaard, C., Egge, J., Heldal, M., Paulino, A., Thyrhaug, R., van Hannen, E. and Bratbak, G. (2001). Population dynamics and diversity of phytoplankton, bacteria and virus in a seawater enclosure. Mar. Ecol. Prog. Ser. 221:47-57.

Castberg, T., Larsen, A., Brussaard, C., Egge, J., Heldal, M., Sandaa, R-A., Thyrhaug, R., van Hannen, E. and Bratbak, G. (2001). Microbial population dynamics and diversity during blooms of the marine coccolithophorid Emiliania huxleyi (Haptophyta). Mar. Ecol. Prog. Ser. 221:39-46.

Ian Hewson, Judith M. O’Neil, Cynthia A. Heil, Gunnar Bratbak, William C. Dennison.  2001. Effects of Elevated Virus Abundance on Benthic Microbial Communities. Aquat. Microb. Ecol 25:1-10.

F. Rodríguez, E. Fernández, R.N. Head, D.S. Harbour, G. Bratbak, M. Heldal and R.P. Harris. 2000. Temporal variability of viruses, bacteria, phytoplankton and zooplankton in the western English Channel off Plymouth. J. Mar.Biol. Ass. UK. 80:575-586.

Brussaard, C.P.D., Marie, D. and Bratbak, G. 2000. Flow cytometric detection of viruses. Journal of Virological Methods. 85:175-182

Brussaard C, Thyrhaug R, Marie D, and Bratbak G. 1999 Flow cytometric analysis of virus infection in two marine phytoplankton species, Micromonas pusilla (Prasinophyceae) and Phaeocystis pouchetii (Prymnesiophyceae). Journal of Phycology 35:941-948.

Dominique Marie, Corina P. D. Brussaard, Runar Thyrhaug, Gunnar Bratbak, and Daniel Vaulot. 1999.  Enumeration of Marine Viruses in Culture and Natural Samples by Flow Cytometry Appl. Envir. Microbiol. 65: 45-52.

Malin G., Wilson W.H., Bratbak G., Liss P.S. Mann N.H. 1998. Elevated production of dimethylsulfide resulting from viral infection of cultures of Phaeocystis pouchetii. Limnol. Oceanogr. 43:1389-1393.

Bratbak G, Jacobsen A, Heldal M. 1998. Viral lysis of Phaeocystis pouchetii and bacterial secondary production. Aquat. Microb. Ecol. 16:11-16.

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. Aquat. Microb. Ecol. 16:1-9.

Oren A., Bratbak, G., and Heldal M. 1997. Occurrence of virus-like particles in the Dead Sea. Extremophiles 1:143-149.

Tuomi, P., Torsvik, T. Heldal, M. and. Bratbak, G. 1997. Bacterial population dynamics in a meromictic lake. Appl. Environ. Microbiol. 63:2181-2188.

Heldal, M., Norland, S., Fagerbakke, K.M., Thingstad, T.F and. Bratbak, G, 1997. The elemental composition of bacteria: a signature of growth condition. Marine Pollution Bulletin 33:3-9.

Guixa-Boixareu Nuria, Calderón-Paz Juan I., Heldal, Mikal, Bratbak, Gunnar, Pedrós-Alió Carlos. 1996. Viral lysis and bacterivory as procaryotic loss factors along a salinity gradient. Aquatic Microb. Ecol. 11:215-227.

Heldal, M., Fagerbakke, K.M., Tuomi, P., and. Bratbak, G. 1996.  Abundant populations of iron and manganese sequestering bacteria in coastal water. Aquatic Microbial Ecology. 11:127-133.

Jacobsen, A.,  Bratbak, G. and Heldal, M. 1996. Isolation and characterisation of a virus infecting Phaeocystis pouchetii (Prymnesiophyceae). J. Phycol. 32:923-927.

Bratbak, G., Heldal, M., Thingstad, T.F. and Tuomi, P. 1996.  Dynamics of virus abundance in coastal seawater. FEMS Microbiology Ecology. 19:263-269

Kjell Gundersen, Gunnar Bratbak and Mikal Heldal. 1996. Factors influencing the loss of bacteria in preserved seawater samples. Mar. Ecol. Prog. Ser. 137: 305-310.

Bratbak, G., Willson, W. and Heldal, M. 1996. Viral control of Emiliania huxleyi blooms? Journal of Marine Systems 9:75-81.

Bratbak, G., Levasseur, M.,  Michaud, S., Cantin, G., Fernández, E., Heimdal, B.R. and Heldal, M . 1995. Viral activity in relation to Emiliania huxleyi blooms: a possible mechanism of DMSP release? Mar. Ecol. Prog. Ser. 128:133-142.

Tuomi, P., Fagerbakke, K.M., Bratbak G. and Heldal, M. 1995. Nutritional enrichment of a microbial community: the effects on activity, elemental composition, community structure and virus production. FEMS Microbiology Ecology 16:123-134.

Bratbak, G., Heldal, M., and Thingstad, T. 1994. Viruses and the microbial loop. Microbial Ecology 28:209-221.

Heldal, M., S. Norland, B. Riemann and G. Bratbak. 1994. Determination of bacterial cell number and cell volume by means of flowcytometry, TEM and epifluorescence microscopy. Journal of Microbial Methods 20:255-263.

Thingstad,T.F., Heldal,M., Bratbak,G., and Dundas,I. 1993. Are viruses important partners in pelagic food webs? Trends in Ecology and Evolution. 8:209-213.

Bratbak, G., J.K. Egge and M. Heldal. 1993. Viral mortality of the marine alga Emiliania huxleyi (Haptophyceae) and termination of algal blooms. Mar. Ecol. Prog. Ser. 93:39-48.

Bratbak, G., Haslund, O.H., Heldal, M., Næss, A., and Røeggen, T. 1992. Giant marine viruses ? Mar. Ecol. Prog. Ser. 85:201-202.

Bratbak, G., M. Heldal, T.F. Thingstad, B. Riemann and O.H. Haslund. 1992. Incorporation of viruses into the budget of microbial C-transfer. A first approach. Mar. Ecol. Prog. Ser. 83:273-280.

Heldal, M. and G. Bratbak. 1991. Production and decay of viruses in marine waters. Mar. Ecol. Prog. Ser. 72: 205-212.

Bratbak, G., M. Heldal, S. Norland, and T.F. Thingstad. 1990. Viruses as partners in spring bloom microbial trophodynamics. Appl. Environ. Microbiol 56:1400-1405.

Børsheim, Y., G. Bratbak, and M. Heldal. 1990.  Enumeration and biomass estimation of planktonic bacteria and viruses by transmission electron microscopy. Appl. Environ. Microbiol. 56: 352-356.

Bergh, Ø., K.Y.Børsheim, G. Bratbak, and M. Heldal. 1989. High abundance of viruses found in aquatic environments. Nature 340: 467-468.

Bratbak, G. 1987. Carbon flow in an experimental microbial  ecosystem.  Mar. Ecol. Prog. Ser. 36: 267-276.

Børsheim, K.Y., and G. Bratbak. 1987.  Cell volume to cell carbon conversion factors for a bacterivorous Monas sp. enriched from seawater.  Mar. Ecol. Prog. Ser. 36: 171-175.

Bratbak, G., and T.F. Thingstad. 1985. Phytoplankton-bacteria interactions: an apparent paradox? Analysis of a model system with both competition and commensalism. Mar. Ecol. Prog. Ser. 25: 23-30.

Bratbak, G. 1985. Bacterial biovolume and biomass estimations. Appl. Environ. Microbiol. 49: 1488-1493.

Bratbak, G., and I. Dundas. 1984. Bacterial dry matter content and biomass estimations.  Appl. Environ. Microbiol. 48: 755-757.

Bratbak, G., M. Heldal, G. Knutsen T. Lien, and S. Norland. 1982. Correlation of dispersant effectiveness and toxicity of oil dispersants towards the alga Chlamydomonas reinhardti. Marine Pollution Bulletin 13: 351-353.

 

2020-24          CoPI: AQUACOSM-plus - Network of Leading Ecosystem Scale Experimental AQUAtic MesoCOSM Facilities Connecting Rivers, Lakes, Estuaries and Oceans in Europe and beyond

2019-23          CoPI: SIMPLEX - Exploring fractality in ecosystem organization – Developing scale-invariant theory for biodiversity and complexity based on simple laws of ecology.

2019-23          CoPI: VirVar - Uncovering key players for regulation of phytoplankton function and structure: lessons to be learned from algal virus-haptophyte coexistence.

2019-22          CoPI: Ridges - Safe Havens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic Ocean.

2018-23          Partner: The Nansen Legacy - scientific exploration and sustainable management beyond the ice edge.

2018-21          Partner: MIXsTRUCT - Impact of MIXotrophs on the sTRUCTure of the marine pelagic food web.

2018-21          Partner: VIROVAC: Filter-feeding mesozooplankton as uncharted accomplices in marine virus ecology.

2016-20          CoPI: Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean - AQUACOSM (H2020-INFRAIA, ca 770 to UIB).

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