Browsing NTNU Open by Author "Bakke, Ingrid"
Now showing items 1-20 of 47
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A study of the interactions and dynamics of microbial communties
Pettersen, Jakob Peder (Master thesis, 2019)De seneste årene har strukturen, sammensetningen og interaksjonene i mikrobielle samfunn vært et hett tema i de vitenskapelig miljøene. En rekke næringer som havbruk, vannbehandling og helse har mye å tjene dersom en utvidet ... -
An evolutionary preserved intergenic spacer in gadiform mitogenomes generates a long noncoding RNA
Jørgensen, Tor Erik; Bakke, Ingrid; Ursvik, anita; Andreassen, morten; Moum, Truls; Johansen, Steinar Daae (Journal article; Peer reviewed, 2014)Background: Vertebrate mitogenomes are economically organized and usually lack intergenic sequences other than the control region. Intergenic spacers located between the tRNAThr and tRNAPro genes (“T-P spacers”) have been ... -
Anaerobic digestion of pig manure supernatant at high ammonia concentrations characterized by high abundances of Methanosaeta and non-euryarchaeotal archaea
Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Vadstein, Olav; Mironov, Vladimir; Bakke, Rune; Østgaard, Kjetill; Bakke, Ingrid (Journal article; Peer reviewed, 2017)We examined the effect of ammonium and temperature on methane production in high rate upflow anaerobic sludge bed reactors treating pig manure supernatant. We operated four reactors at two ammonium concentrations (‘low’ ... -
Analytical challenges and characterization of skin and gut microbiota of Atlantic salmon fry in a commercial smolt production facility.
Udoye, Chinweike (Master thesis, 2018)Although the Atlantic salmon is an economically important specie, little information exist on the composition of its gut and skin microbiota during early lifestages. Fish microbiota play an essential role in health of fish ... -
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): Contributions of ecological processes and metacommunity structure
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Vadstein, Olav; Gundersen, Madeleine Stenshorne; Bakke, Ingrid (Peer reviewed; Journal article, 2020)Many studies demonstrate the importance of the commensal microbiomes to animal health and development. However, the initial community assembly process is poorly understood. It is unclear to what extent the hosts select for ... -
Bacterial Community Dynamics in a Biofilter exposed to a Micropollutant
Ophus, Mari (Master thesis, 2014)Perfluorooctanoic acid (PFOA) is a fluorinated compound used in many industrial and consumer products. It is environmentally persistent, widespread and bioaccumulative, and multiple toxicities have been reported in ... -
Biodegradation of oil films with different thicknesses in marine environments - Hydrocarbon degradation and microbial communities
Tronstad, Christina W (Master thesis, 2017)The purpose of this study is to examine the effect of different oil film thicknesses on the biodegradation rate and microbial communities, focusing on medium sized oil films (50-500 µl). Initially, three approaches for ... -
Biodegradation of weathered crude oil in seawater with frazil ice
Lofthus, Synnøve; Bakke, Ingrid; Tremblay, Julien; Greer, Charles; Brakstad, Odd Gunnar (Peer reviewed; Journal article, 2020)As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil ... -
Biological Nitrogen Removal of Effluents from Amine-based CO2 Capture Plants: Screening, Feasibility and Limitations
Henry, Ingrid Annemarie (Doctoral theses at NTNU;2016:359, Doctoral thesis, 2016)Biological Treatment of Waste from Carbon Capture and Storage (CCS) – Screening, feasibility and limitations. Carbon capture and storage (CCS) is becoming an important technology to combat climate change. In CCS, carbon ... -
Changes in the microbial community of an anammox consortium during adaptation to marine conditions revealed by 454 pyrosequencing
Gonzalez Silva, Blanca Magdalena; Rønning, Are J.; Andreassen, Ingrid Krogrud; Bakke, Ingrid; Cervantes, Francisco J.; Østgaard, Kjetill; Vadstein, Olav (Journal article; Peer reviewed, 2017)The anammox activity of a freshwater anammox consortium was strongly inhibited at low-salinity level. Stepwise adaptation from 0 to 3 g NaCl L−1 took 153 days. Further adaptation to high-salinity concentration (from 3 to ... -
Characterising temporal dynamics in microbial communities from biofilm and water during commercial production of Atlantic salmon smolts in RAS
Gaarden, Sunniva Ingebrigtsen (Master thesis, 2020)Resirkulerende akvakultursystemer (RAS) har økt i popularitet i norsk oppdrett av atlantisk laksesmolt (Salmo salar). Muligheten til intensiv og kontinuerlig produksjon ved optimale temperaturer gjennom hele året, i tillegg ... -
Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua)
Forberg, Torunn; Sjulstad, Eli Bjørnø; Bakke, Ingrid; Olsen, Yngvar; Hagiwara, Atsushi; Sakakura, Yoshitaka; Vadstein, Olav (Journal article; Peer reviewed, 2016)The vertebrate gut is host to large communities of bacteria, and one of the beneficial contributions of this commensal gut microbiota is the increased nutritional gain from feed components that the host cannot degrade on ... -
Correlations of age and growth rate with microbiota composition in Atlantic cod (Gadus morhua) larvae
Trinh, Ly T. T.; Bakke, Ingrid; Vadstein, Olav (Journal article; Peer reviewed, 2017)Little information is available on the link between host development (growth rate and ontogeny) and the composition of the microbiota in fish larvae. This study was carried out to examine potential correlations of microbiota ... -
Deammonifisering av Rejekt Forbehandlet med Termisk Hydrolyse
Johnsen, Josefin (Master thesis, 2019)Cambi sin termiske hydrolyse prosess(THP) er en kjent og effektiv forbehandlingsprosess for slam før den stabiliseres i en råtnetank. Vannstrømmen som resulterer etter at det fordøyde slammet er avvannet, er rik på ammonium ... -
Effect of gastrointestinal microflora on the growth rate of Atlantic Cod (Gadus Morhua) larvae
Trinh, Thi Truc Ly (Master thesis, 2014)The gastrointestinal tract of fish larvae is inhabited by complex and diverse groups of microbes. Both internal and external factors affect the composition of the microbiota. Until now little information is available on ... -
The Effect of Membrane Filtration on the Microbial Community Dynamics in RAS for Post-Smolt Production
Fossmark, Ragnhild Olsen (Master thesis, 2016)An increased interest for recirculating aquaculture systems (RAS) the past years have led to more research on water treatment processes and how they affect water quality. Most studies have been focusing on the units governing ... -
Effect of salmon lice treatment and lice infection on bacterial colonization on Atlantic salmon skin
Bergh, Sofie Kjerstad (Master thesis, 2019)Lakselusa er den største utfordringen lakseoppdrettsnæringen står ovenfor i Norge. I dag er det mer bevissthet og flere tiltak rundt fiskehelse og fiskevelferd, og det har blitt flere forbyggende behandling mot lakselus. ... -
Effects of different water treatments on microbial communities when startfeeding European lobster (Homarus gammarus)
Øien, John Vegard Næss (Master thesis, 2014)The challenge with poorly performing larvae and high mortality in replicate tanks is a bottleneck in aquaculture. The main objective of this thesis has been to reveal if differences in performance and survival of the reared ... -
Effects of different water treatments on microbial communities when startfeeding European lobster (Homarus gammarus)
Oien, John Vegard Næss (Master thesis, 2014)The challenge with poorly performing larvae and high mortality in replicate tanks is a bottleneck in aquaculture. The main objective of this thesis has been to reveal if differences in performance and survival of the reared ... -
Effects of reduced organic matter loading through membrane filtration on the microbial community dynamics in recirculating aquaculture systems (RAS) with Atlantic salmon parr (Salmo salar)
Fossmark, Ragnhild Olsen; Vadstein, Olav; Rosten, Trond Waldemar; Bakke, Ingrid; Koseto, Deni; Bugten, Anette Voll; Helberg, Gaute Alexander Nedberg; Nesje, Jenny; Jørgensen, Niels O.G.; Raspati, Gema Sakti; Azrague, Kamal; Østerhus, Stein Wold; Attramadal, Kari (Peer reviewed; Journal article, 2020)A key challenge in recirculating aquaculture systems (RAS) is the accumulation of particulate organic matter, especially the fine and colloidal fraction due to low removal efficiency of today's technology. The supply of ...