Otto Grahl-Nielsen
Stilling
Emeritus
Tilhørighet
Publikasjoner
Forelesning
- Otto Grahl-Nielsen (1999). Nettundervisning i begynneremnet i kjemi. (ekstern lenke)
- Otto Grahl-Nielsen (1997). Presentasjon av K101. (ekstern lenke)
- Otto Grahl-Nielsen (1997). Dra til sjøs, for der er mye kjemi. (ekstern lenke)
- Otto Grahl-Nielsen (1996). Early detection of oxidation of marine oils by chemometric determination of changes in fatty acid composition. (ekstern lenke)
- Otto Grahl-Nielsen (1994). Feite tider. (ekstern lenke)
- Otto Grahl-Nielsen (1994). Marine mammalian fatty acids: A source of information. (ekstern lenke)
Forskningsrapport
- Helge Botnen; Staffan Hjohlman; Olav Mjaavatten et al. (1998). Overvåking av marinbiologiske forhold ved Statoils raffineri på Mongstad i 1997. (ekstern lenke)
- Øyvind F. Tvedten; Otto Grahl-Nielsen; Olav Mjaavatten et al. (1997). Undersøkelse av miljøforhold utenfor Norsk Blikkvalseverk AS. (ekstern lenke)
- Øyvind F. Tvedten; Helge Botnen; Per J Johannessen et al. (1996). Miljøundersøkelse ved Norsk Blikkvalseverk. (ekstern lenke)
- Øyvind F. Tvedten; Otto Grahl-Nielsen; Helge Botnen et al. (1996). Miljøundersøkelse ved Eide avfallsplass, Fjell kommune. (ekstern lenke)
- Helge Botnen; Otto Grahl-Nielsen; Olav Mjaavatten et al. (1996). Tungmetall og oljehydrokarboner i blåskjell fra Mongstadområdet i 1996. (ekstern lenke)
- Helge Botnen; [Mangler fornavn] Øyvind F. Tvedten; Otto Grahl-Nielsen et al. (1996). Miljøundersøkelse i Dalabukta og Kristiansund havneområde. (ekstern lenke)
- Helge Botnen; K. Årestad; Otto Grahl-Nielsen et al. (1994). Overvåkning av marinbiologiske forhold ved Statoils raffineri på Mongstad i 1994. (ekstern lenke)
- Helge Botnen; Knut Årrestad; Otto Grahl-Nielsen et al. (1994). Overvåkning av marinbiologiske forhold ved Statoils raffineri på Mongstad i 1994. (ekstern lenke)
- Helge Botnen; Staffan Hjohlman; Øyvind F. Tvedten et al. (1993). Overvåking av marinbiologiske forhold ved Norsk Hydro AS sitt anlegg på Sture i Øygarden 1993. (ekstern lenke)
- Per J Johannessen; Helge Botnen; S. Hjohlman et al. (1992). Overvåking av marinbiologiske forhold ved Statoil's raffineri på Mongstad 1991. (ekstern lenke)
- Per J Johannessen; I. Risheim; Helge Botnen et al. (1991). Overvåking av marinbiologiske forhold ved Statoil's raffineri på Mongstad. IFM Rapport 29. (ekstern lenke)
- Jan Aure; Otto Grahl-Nielsen; Svein Sundby (1979). Spredning av olje-holdig avløpsvann i Fensfjorden fra oljeraffineriet på Mongstad. (ekstern lenke)
Konferanseforedrag
- Otto Grahl-Nielsen; Gyda Christophersen; Anita Jacobsen et al. (2008). Identification of Pecten maximus populations in Norway by muscle fatty acid profiles. (ekstern lenke)
- Otto Grahl-Nielsen (2004). Fatty acid composition of the blubber of the Baikal seal (Phoca Sibirica) and in the blubber of its marine relative, the ringed seal (Phoca hispida). (ekstern lenke)
- Otto Grahl-Nielsen; Ann-Kristin Halvorsen (2004). Stratification of the blubber of marine mammals. (ekstern lenke)
- Otto Grahl-Nielsen (2004). Fatty acid profiles as natural marks for stock identification. (ekstern lenke)
- Otto Grahl-Nielsen (2002). Taxonomic and nutritional studies on marine fish and mammals by determination of tissue fatty acid composition. (ekstern lenke)
- Otto Grahl-Nielsen (2002). Chemometric determination of fatty acids inmarine organisms by high resolution gas chromatography followed by multivariate statistics. (ekstern lenke)
- Otto Grahl-Nielsen (2002). Eksempler på akvakulturelle problemer som er løst ved hjelp av kromatografiske metoder. (ekstern lenke)
- Ann-Kristin Halvorsen; Andrew Derocher; Magnus Andersen et al. (2002). Fettsyresammensetningen i spekket til isbjørn. (ekstern lenke)
- Otto Grahl-Nielsen (2001). Nettforelesninger i generell kjemi. (ekstern lenke)
- Otto Grahl-Nielsen (2001). Blubber fatty acids in marine mammals. (ekstern lenke)
- Otto Grahl-Nielsen (2001). Summary of factors that could potentially confound the interpretation of fatty acid composition and a summary of laboratory and field studies dealing with fatty aqcid composition analysis. (ekstern lenke)
- Erik Joel Steinar Olsen; Otto Grahl-Nielsen (2001). Spatial and temporal trends in blubber fatty acids of Northeastern Atlantic. (ekstern lenke)
- Otto Grahl-Nielsen (2001). Nettbasert kjemiundervisning. Erfaringer og pedagogiske refleksjoner. (ekstern lenke)
- Otto Grahl-Nielsen (2001). Taxonomic and dietary information from the fatty acid composition of the blubber of marine mammals. (ekstern lenke)
- Tomasz Furmanek; Otto Grahl-Nielsen (2000). Lynkurs i Flash. (ekstern lenke)
- Tomasz Furmanek; Otto Grahl-Nielsen (2000). Nettkollokvering og orakeltjeneste. (ekstern lenke)
- Otto Grahl-Nielsen (2000). Nettforelesninger i generell kjemi. (ekstern lenke)
- Otto Grahl-Nielsen (2000). Informasjons- og kommunikasjonsteknologi (IKT) i undervisning og veiledning. (ekstern lenke)
- Otto Grahl-Nielsen (1999). Analytiske utfordringer ved bestemmelse av hormonhermende miljøgifter. (ekstern lenke)
- Otto Grahl-Nielsen (1998). Bestandsidentifikasjon ved hjelp av fettsyreprofiler. (ekstern lenke)
- Horaldur Joensen; Otto Grahl-Nielsen (1998). Taksonomi vha fettsyreprofiler. (ekstern lenke)
- Svein Bratteteig; Otto Grahl-Nielsen (1998). Sildelarvens første levedager. (ekstern lenke)
- Svein Bratteteig; Otto Grahl-Nielsen (1998). Sildelarvens første levedager. (ekstern lenke)
- Otto Grahl-Nielsen (1998). Sigevann fra avfallsdeponier og produsert vann fra oljeplattformer. (ekstern lenke)
- Kari Helene Abelseth; Lindy Sørland; Otto Grahl-Nielsen (1998). Endring av fettsyresammensetningen ved oksidasjon av marine oljer. (ekstern lenke)
- Gro Fremmersvik; Eva Kristin Løvseth; Otto Grahl-Nielsen (1998). Fenoler i sigevann fra 10 avfallsdeponier i Hordaland. (ekstern lenke)
- Eva Kristin Løvseth; Gro Fremmersvik; Otto Grahl-Nielsen (1998). Analyse av flyktige komponenter i sigevann fra 10 avfallsdeponier i Hordaland. (ekstern lenke)
- Petter Aas; Otto Grahl-Nielsen; Holm A Holmsen (1998). Derivatisering av fosfolipider og HPLC-analyse av molekylformer av utvalgte fosfolipider. (ekstern lenke)
- Geir Legreid; Otto Grahl-Nielsen (1998). Oljefilm på overflaten som følge av utslipp fra produksjonsplattformer. (ekstern lenke)
- Otto Grahl-Nielsen; Terje Lygre (1998). Problemer med presisjonen ved GC-analyse av kompliserte blandinger. (ekstern lenke)
- Lindy Sørland; Kari Helene Abelseth; Otto Grahl-Nielsen (1998). Flyktige forbindelser som dannes ved oksidasjon av marine oljer. (ekstern lenke)
- Otto Grahl-Nielsen (1997). Når analyseresultatene behandles med flervariabel statistikk vil utbyttet av miljøundersøkelsene bli mangedoblet. (ekstern lenke)
- Otto Grahl-Nielsen (1997). Lipider hos Mya truncata på Svalbard oljeinstellasjoner på norsk sokkel. (ekstern lenke)
- Otto Grahl-Nielsen (1997). Rasjonaliseringen av den kjemiske overvåkningen rundt oljeinstellasjoner på norsk sokkel. (ekstern lenke)
Konferanseposter
- Eli Skoglund; Kit Kovacs; Christian Lydersen et al. (2005). Fatty acid composition of the skin and blubber, and potential prey organisms of walruses Odobenys rosmarus. (ekstern lenke)
- Jens-Otto Krakstad; Ann-Kristin Halvorsen; Leif Nøttestad et al. (2004). Dusky dolphins (Lagenorhynchus obscurus): Fatty acid composition of their blubber and of their prey. (ekstern lenke)
- Jens-Otto Krakstad; Ann-Kristin Halvorsen; Leif Nøttesstad et al. (2003). Dusky Dolphins (Lagenorhynchus obscurus): Fatty acid composition of their blubber and of their prey. (ekstern lenke)
- Andrew Derocher; Magnus Andersen; Kit M. Kovacs et al. (2001). Fatty acid composition of the blubber of polar bears (Ursus maritimus) and of their prey, ringed seals (Phoca vitulina), bearded seals (Erignathus barbatus) and harp seals (Phoca groenlandica). (ekstern lenke)
- Ann-Kristin Halvorsen; Otto Grahl-Nielsen; Erik Joel Steinar Olsen (2001). The fatty acid composition of the blubber of fetuses and female minke whales. (ekstern lenke)
- Annette Birkeland; Otto Grahl-Nielsen; Kit M. Kovacs et al. (2001). Mother to pup transfer of fatty acids in three seal species: harbor seal (Phoca vitulina), harp seal (Phoca groenlandica) and hooded seal (Cystophora cristata). (ekstern lenke)
- Arild Folkvord; Inger Margrethe Haaland; Otto Grahl-Nielsen et al. (1994). Fatty acid composition of herring (Clupea harengus L.) larvae from two different spawning sites. (ekstern lenke)
Leserbrev
- Otto Grahl-Nielsen (2009). Exploration of the foraging ecology of marine mammals by way of the fatty acid composition of their blubber. (ekstern lenke)
- Otto Grahl-Nielsen; Magnus Andersen; Andrew E. Derocher et al. (2004). Reply to Comment on Grahl-Nielsen et al. (2003): sampling, data treatment and predictions in investigations on fatty acids in marine mammals. (ekstern lenke)
Vitenskapelig artikkel
- Arild Folkvord; Roland Koedijk; Otto Grahl-Nielsen et al. (2018). You are what you eat? Differences in lipid composition of cod larvae reared on natural zooplankton and enriched rotifers. (ekstern lenke)
- Larisa D. Radnaeva; Dmitry V. Popov; Otto Grahl-Nielsen et al. (2017). Fatty acid composition in the white muscle of Cottoidei fishes of Lake Baikal reflects their habitat depth. (ekstern lenke)
- Horaldur Joensen; Otto Grahl-Nielsen (2014). Distinction among North Atlantic cod Gadus morhua stocks by tissue fatty acid profiles. (ekstern lenke)
- Anita Jacobsen; Otto Grahl-Nielsen; Thorolf Magnesen (2012). Effects of reduced diameter of bag cultures on content of essential fatty acids and cell density in a continuous algal production system. (ekstern lenke)
- Siri Aaserud Olsen; Arne S Ervik; Otto Grahl-Nielsen (2012). Tracing fish farm waste in the northern shrimp Pandalus borealis (Kroyer, 1838) using lipid biomarkers. (ekstern lenke)
- Otto Grahl-Nielsen; E. Averina; Nikolai Pronin et al. (2011). Fatty acid profiles in different fish species in Lake Baikal. (ekstern lenke)
- Otto Grahl-Nielsen; Tore Haug; Ulf Lindstrøm et al. (2011). Fatty acids in harp seal blubber do not necessarily reflect their diet. (ekstern lenke)
- E.S. Averina; Otto Grahl-Nielsen; S.V. Bazarsadueva et al. (2011). Transformation through the food chain of Lake Baikal hydrobionts fatty acids. (ekstern lenke)
- Anita Jacobsen; Otto Grahl-Nielsen; Thorolf Magnesen (2011). Effects of reduced diameter of bag cultures on content of essential fatty ascids and cell density in a continous algal production system. (ekstern lenke)
- Justus Kwetegyeka; J Masa; Bernard T Kiremire et al. (2011). Fatty acids of polar lipids in heart tissue are good taxonomic markers for tropical African freshwater fish. (ekstern lenke)
- K Minzangi; AN Kaaya; F Kansiime et al. (2011). Fatty acid composition of seed oils from selected wild plants of Kahuzi-Biega National Park and surroundings, Democratic Republic of Congo. (ekstern lenke)
- Otto Grahl-Nielsen; Kevin Alan Glover (2010). Fatty acids in fish scales. (ekstern lenke)
- Eli Skoglund; Christian Lydersen; Otto Grahl-Nielsen et al. (2010). Fatty acid composition of the blubber and dermis of adult male Atlantic walruses (Odobenus rosmarus rosmarus) in Svalbard, and their potential prey. (ekstern lenke)
- Otto Grahl-Nielsen; Jens-Otto Krakstad; Leif Nøttestad et al. (2010). Dusky dolphins Lagenorhynchus obscurus and Cape fur seals Arctocephalus pusillus pusillus: fatty acid composition of their blubber and prey species. (ekstern lenke)
- Otto Grahl-Nielsen; Anita Jacobsen; Gyda Christophersen et al. (2010). Fatty acid composition in adductor muscle of juvenile scallops (Pecten maximus) from five Norwegian populations reared in the same environment. (ekstern lenke)
- Anita Jacobsen; Otto Grahl-Nielsen; Thorolf Magnesen (2010). Does a large-scale continuous algal production system provide a stable supply of fatty acids to bivalve hatcheries?. (ekstern lenke)
- Siri Aaserud Olsen; Arne Ervik; Otto Grahl-Nielsen (2009). Deep-water shrimp (Pandalus borealis, Kroyer 1838) as indicator organism for fish-farm waste. (ekstern lenke)
- Bernt Rydland Olsen; Otto Grahl-Nielsen; Christoffer Schander (2009). Population study of Astarte sulcata, da Costa, 1778, (Mollusca, Bivalvia) from two Norwegian fjords based on the fatty acid composition of the adductor muscle. (ekstern lenke)
- Ursula Strandberg; Anne Käkelä; Christian Lydersen et al. (2008). Stratification, composition, and function of marine mammal blubber: The ecology of fatty acids in marine mammals. (ekstern lenke)
- Justus Kwetegyeka; George Mpango; Otto Grahl-Nielsen (2008). Variation in Fatty Acid Composition in Muscle and Heart Tissues among Species and Populations of Tropical Fish in Lakes Victoria and Kyoga. (ekstern lenke)
- Justus Kwetegyeka; George Mpango; Otto Grahl-Nielsen (2006). Fatty acid composition of muscle and heart tissue of Nile perch, Lates niloticus, and Nile tilapia, Oreochromis niloticus, from various populations in Lakes Victoria and Kioga, Uganda. (ekstern lenke)
- Sonnich Meier; Svein Are Mjøs; Horaldur Joensen et al. (2006). Validation of a one-step extraction/methylation method for determination of fatty acids and cholesterol in marine tissues. (ekstern lenke)
- Svein Are Mjøs; Sonnich Meier; Otto Grahl-Nielsen (2006). Geometrical isomerisation of double bonds in acid-catalysed preparation of fatty acid methyl esters. (ekstern lenke)
- Svein Are Mjøs; Otto Grahl-Nielsen (2006). Prediction of gas chromatographic retention of polyunsaturated fatty acid methyl esters. (ekstern lenke)
- Svein Are Mjøs; Sonnich Meier; Otto Grahl-Nielsen (2006). Geometrical isomerisation of double bonds in acid catalysed preparation of fatty acid methyl esters. (ekstern lenke)
- Christofer Troedsson; Otto Grahl-Nielsen; Eric Thompson (2005). Variable fatty acid composition of the pelagic appendicularian Oikopleura dioica in response to dietary quality and quantity. (ekstern lenke)
- Otto Grahl-Nielsen; Ann-Kristin Halvorsen; Nikolai Bodoev et al. (2005). Fatty acid composition of blubber of the Baikal seal Phoca sibirica and its marine relative, the ringed seal P. hispida. (ekstern lenke)
- Annette Birkeland; Kit M. Kovacs; Christian Lydersen et al. (2005). Transfer of fatty acids from mothers to their calves during lactation in white whales Delphinapterus leucas. (ekstern lenke)
- Signe Andersen; Christian Lydersen; Otto Grahl-Nielsen et al. (2004). Autumn diet of harbour seals (Phoca vitulina) at Prins Karls Forland, Svalbard, assessed via scat and fatty-acid analyses. (ekstern lenke)
- Horaldur Joensen; Otto Grahl-Nielsen (2004). Stock structure of Sebastes mentella in the North Atlantic revealed by chemometry of the fatty acid profile in heart tissue. (ekstern lenke)
- Otto Grahl-Nielsen; Magne Andersen; M Andersen et al. (2004). Fatty acid composition of the adipose tissue of polar bears and of their prey: ringed seals, bearded seals and harp seals. (ekstern lenke)
- Sten-Richard Birkely; Otto Grahl-Nielsen; Bjørn Gulliksen (2003). Temporal variations and anatomical distributions of fatty acids in the bivalve Mya truncata, L. 1758, from Isfjorden, Spitsbergen. (ekstern lenke)
- Erik Joel Steinar Olsen; Otto Grahl-Nielsen (2003). Blubber fatty acids of minke whales: stratification, population identification and relation to diet. (ekstern lenke)
- Otto Grahl-Nielsen; Magnus Andersen; Andrew Derocher et al. (2003). Fatty acid composition of the adipose tissue of polar bears and their prey: ringed seals, bearded seals and harp seals. (ekstern lenke)
- Horaldur Joensen; Otto Grahl-Nielsen (2001). The redfish species Sebastes viviparus, Sebastes marinus and Sebastes mentella have different composition of their tissue fatty acids. (ekstern lenke)
- K. Julshamn; Otto Grahl-Nielsen (2000). Trace element levels in harp seal (Pagophilus groenlandicus) and hooded seal (Crystophora cristata) from the Greenland Sea. A multivariate approach. (ekstern lenke)
- Horaldur Joensen; P. Steingrund; I. Fjallstein et al. (2000). Discrimination between two reared stocks of cod (Gadus morhua) from Faroe Islands by chemometry of the fatty acid composition in the heart tissue. (ekstern lenke)
- Otto Grahl-Nielsen; M.O. Hammill; C. Lydersen et al. (2000). Transfer of fatty acids from female seal bluber via milk to pup blubber. (ekstern lenke)
- Horaldur Joensen; Otto Grahl-Nielsen (2000). Discrimination of Sebastes viviparus, S. marinus and S. mentella from Faroe Islands by chemometry of the fatty acid profile in heart and gill tissues and in the skull oil. (ekstern lenke)
- R.I. Johnsen; Otto Grahl-Nielsen; A. Roem (2000). Relative absorption of fatty acids by Atlantic salmon Salmo salar from different diets, as evaluated by multivariate statistics. (ekstern lenke)
- Kåre Julshamn; Otto Grahl-Nielsen (1996). Distribution of trace elements from industrial discharges in the Hardangerfjord, Norway. A multivariate data analysis of saithe, flounder and blue mussel as sentinel organisms. (ekstern lenke)
- Arild Folkvord; Inger Margrethe Haaland; Otto Grahl-Nielsen et al. (1996). Fatty acid composition of herring (Clupea harengus L.) larvae off western Norway. (ekstern lenke)
- R. Slimestad; S. Gjelsvik; Otto Grahl-Nielsen (1995). Detection of effects of ozone on birch, Betula pendula Roth., by chemometrical evaluation of concentrations of lipid components in leaves. (ekstern lenke)
- Otto Grahl-Nielsen; Olav Mjaavatten; E. Tvedt (1993). Distinguishing between populations of the harp seal Pagophilus groenlandicus (Erxleben 1777), by chemometry of the fatty acid profile in selected tissues. (ekstern lenke)
- J. J. Cooney; M. M. Doolittle; Otto Grahl-Nielsen et al. (1993). Fatty acids in marine fungi. (ekstern lenke)
- R. I. Johnsen; Otto Grahl-Nielsen; B. T. Lunestad (1993). Environmental distribution of organic waste from a marine fish farm. (ekstern lenke)
- Trygg Normann Barnung; Otto Grahl-Nielsen (1989). DETERMINATION OF BENZENES AND NAPHTHALENES IN WATER BY PURGE AND TRAP ISOLATION AND CAPPILLARY COLUMN CHROMATOGRAPHY. (ekstern lenke)
- Trygg Normann Barnung; Otto Grahl-Nielsen (1987). The fatty acid profile in cod (Gadus morhua L.) eggs and larvae. Developmental variations and responses to oil pollution. (ekstern lenke)
- Otto Grahl-Nielsen; Trygg Normann Barnung (1985). Variations in the Fatty Acid Profile of Marine Animals Caused by Environmental and Developmental Changes. (ekstern lenke)
Vitenskapelig bokkapittel
- Paul-Erik Lillholm Rosenbaum; Øyvind Mikalsen; Otto Grahl-Nielsen (2010). The learning effect of using a blended learning design in K12 science teaching. (ekstern lenke)
- Otto Grahl-Nielsen; Asbjørn Aarflot (2004). Kjemi på nett. (ekstern lenke)
- Ulf Båmstedt; Hans Jørgen Fyhn; Monica Bente Martinussen et al. (2004). Seasonal distribution, diversity and biochemical composition of appendicularians in Norwegian fjords. (ekstern lenke)
- Otto Grahl-Nielsen (2004). Fatty acid profiles as natural marks for stock identification. (ekstern lenke)
- Dag Olav Øvstedal; Torgils Fossen; Otto Grahl-Nielsen et al. (2000). Beskrivelse av den trolig eldste norske påskeliljekultivar, basert på kjemiske, morfologiske og cytologiske undersøkelser. (ekstern lenke)