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Demographic responses of Daphnia magna fed transgenic Bt-maize
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009-10-27)The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of <i>Daphnia magna</i>, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival ... -
Can aquaculture impact the surrounding biodiversity? A metabarcoding assessment
(Master thesis; Mastergradsoppgave, 2020-06-01)World’s population growth and rise in food consumption per capita have led to increased food demand and overexploitation of natural resources in recent decades. Such increase has threatened the global feeding schemes to maintain a balance between food supply and demand. Although “The Blue Revolution” promised to fill such gap and simultaneously alleviate the overexploitation of the oceans, deterioration ... -
Sápmi100? Saamelaishistorian vastanarratiivejä Suomi100-tapahtumassa Sajoksessa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-19)Suomen Historiallinen Seura, Oulun Historiaseura ja Saamelaisarkisto järjestivät 21. syyskuuta 2017 Suomi 100-seminaarin Inarin Sajoksessa. Tilaisuuteen kutsuttiin kolme saamentutkijaa esitelmöimään saamelaisten historiasta itsenäisessä Suomessa. Artikkelimme käsittelee sitä, millaisia narratiiveja saamelaisten historiasta tilaisuudessa artikuloitiin ja millaisia vastanarratiiveja Suomen historiaan ... -
Profit and Resource Rent in Fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-19)The difference between the concepts of profit and rent are discussed theoretically and by using aggregated data from the Icelandic and Norwegian fish harvesting industries. The former is a basic indicator for gauging the business performance of firms and industries, and the latter is important for the evaluation of the economic welfare contribution of resources and industries. The importance of ... -
Do the predators of Yamal have a learning effect of artificial nests?
(Master thesis; Mastergradsoppgave, 2020-06-01)Many artificial nest studies that goes over several years place the nests in the same location each placement. Over the years there is a chance that the predators learn where the nests are placed and that can give skewed results. The goal of my study is to see if the predators learn where the nests are located. This was done over three study sites on the Yamal peninsula. In two of the study sites ... -
eDNA metabarcoding of amoebic gill disease (AGD) pathogens exposes potential vectors and reservoirs
(Master thesis; Mastergradsoppgave, 2020-05-31)Aquaculture worldwide is under constant scrutiny and financial pressure to maintain fish health, while providing an essential food source to a growing populace. To assist in monitoring mariculture sites and preventing harmful diseases, we tested a recently proposed method of trace pathogen detection using eDNA metabarcoding. The target pathogen, Paramoeba perurans, is the etiological agent of AGD, ... -
The Demersal Fish Community on the West Spitsbergen Shelf. Biodiversity, species composition, distribution and temporal changes in relation to climate.
(Master thesis; Mastergradsoppgave, 2020-05-29)This thesis explores a historical time series of trawl stations on the West Spitsbergen Shelf (WSS), aiming to understand the spatial and temporal variability of the demersal fish communities in the region. Abundance data of 42 fish species are used to investigate the species composition, richness, and diversity across six different areas under different environmetal influence. The results indicate ... -
Interannual variability (2014-2019) of hydrography, fluorescence and nutrient distribution in Vestfjorden, Lofoten
(Master thesis; Mastergradsoppgave, 2020-06-01)Vestfjorden is an area of great ecological relevance since it is one of the main spawning areas of North East Atlantic cod. The survival rate of the cod larvae depends greatly on the abundance of zooplankton, which in turn depends on phytoplankton. Due to the extreme seasonality of high latitude fjords with a short productive season, understanding the phytoplankton distribution in spring is crucial. ... -
Dietary vs. light stimulated smoltification: effects on smolt development and appetite regulation in pre- and post- smolts
(Master thesis; Mastergradsoppgave, 2020-05-22)The transfer of smolt from freshwater (FW) to seawater (SW) is a critical stage in the farming of Atlantic salmon (Salmo salar) with mortalities of up to 15 % after transfer. One of the reasons for this loss is suboptimal smolt quality. It is therefore important to ensure that the fish are fully SW adapted before transfer to SW. Traditionally, smoltification is stimulated by exposing the fish to a ... -
Analysis of xyloglucan-modifying genes and enzymes at graft-junctions of tomato plants
(Master thesis; Mastergradsoppgave, 2020-05-16)Grafting is a widely used technique for propagation of plants in both agriculture and horticulture worldwide and involves combining two or more plants into one chimeric plant, ultimately with a shared vascular system. Benefits of grafting such as pathogen resistance, increase in fruit yield and abiotic stress tolerance have long been known, but the biological mechanisms of how plants graft are still ... -
Risk assessment on the use of triclosan in cosmetics; Development of antimicrobial resistance in bacteria - II. Opinion of the Panel on Biological Hazards Norwegian Scientific Committee for Food Safety
(Research report; Forskningsrapport, 2007-02)Den Europa kommisjonens vitenskapskomité for forbruksvarer (SCCP) konkluderte 10. oktober 2006 med at det på grunnlag av tilgjengelige data ikke er funnet bevis for at triklosan i kosmetiske produkter kan føre til resistens – eller kryssresistensutvikling hos bakterier. Til tross for at en slik sammenheng kan være sannsynlig, finnes det ikke god dokumentasjon.<p><p> Siden denne konklusjonen ikke ... -
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA
(Master thesis; Mastergradsoppgave, 2020-05-15)In order to estimate biodiversity or do species counts, detramental techniques such as trawling or longlining have been used. Lately techniques used to monitor, such as baited remote underwater video systems and environmental DNA have been tested as possible methods to investigate species richness and abundance, the latter which will be used in this thesis. Using eDNA methodology, a northern ... -
Genetic population structure of the northern shrimp (Pandalus borealis) along the Norwegian coast
(Master thesis; Mastergradsoppgave, 2020-05-15)The coastal shrimp (Pandalus borealis) represent an important income for a small-scale fishery. The more economical important fishery of shrimp is located offshore. There is sparse information and literature regarding the coastal shrimp, and it is a lot we do not know about the species that inhabits our coast and fjords. Genetic research will provide more information on the species in these areas. ... -
Helse- og miljørisikovurdering av genmodifisert maislinje 98140 fra Pioneer Hi-Bred. International Inc. (EFSA/GMO/UK/2008/53). Uttalelse fra Faggruppe for genmodifiserte organismer i Vitenskapskomiteen for mattrygghet
(Research report; Forskningsrapport, 2009-03-12)Helse- og miljørisikovurderingen av den herbicidtolerante maislinjen 98140 fra Pioneer Hi-Bred International, Inc. (EFSA/GMO/UK/2008/53) er utført av Faggruppe for genmodifiserte organismer i Vitenskapskomiteen for mattrygghet. Mattilsynet og Direktoratet for naturforvalting (DN) ber Vitenskapskomiteen for mattrygghet om å vurdere den genmodifiserte maislinjen 98140 til import og prosessering, og ... -
Food/feed and environmental risk assessment of insect-resistant and herbicide-tolerant genetically modified maize Bt11 x GA21 in the European Union under Regulation (EC) No 1829/2003 (EFSA/GMO/UK/2007/49). Opinion of the Panel on Genetically Modified Organisms of the Norwegian Scientific Committee for Food Safety
(Research report; Forskningsrapport, 2014-01-21)In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Environment Agency (former Norwegian Directorate for Nature Management) has requested the Norwegian Food Safety Authority (NFSA) to give final opinions on all genetically modified organisms (GMOs) and products containing or consisting of GMOs that are authorized in the European Union under Directive 2001/18/EC or ... -
Food/feed and environmental risk assessment of insect-resistant and herbicide-tolerant genetically modified maize Bt11 x MIR604 in the European Union under Regulation (EC) No 1829/2003 (EFSA/GMO/UK/2007/50). Opinion of the Panel on Genetically Modified Organisms of the Norwegian Scientific Committee for Food Safety
(Research report; Forskningsrapport, 2014-01-21)In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Environment Agency (former Norwegian Directorate for Nature Management) has requested the Norwegian Food Safety Authority (NFSA) to give final opinions on all genetically modified organisms (GMOs) and products containing or consisting of GMOs that are authorised in the European Union under Directive 2001/18/EC or ... -
Environmental risk assessment of insect resistant genetically modified maize MON810 for cultivation, seed production, import, processing and feed uses under Directive 2001/18/EC (Notification C/F/95/12/02). Opinion of the Panel on Genetically Modified Organisms of the Norwegian Scientific Committee for Food Safety
(Research report; Forskningsrapport, 2013-01-11)In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Scientific Committee for Food Safety (VKM) has been requested by the Norwegian Directorate for Nature Management to conduct final environmental risk assessments for all genetically modified organisms (GMOs) and products containing or consisting of GMOs that are authorized in the European Union under Directive 2001/18/EC ... -
Food/feed and environmental risk assessment of insect-resistant and herbicide-tolerant genetically modified maize 1507 x NK603 for food and feed uses, import and processing under Regulation (EC) No 1829/2003 (EFSA/GMO/UK/2004/05). Opinion of the Panel on Genetically Modified Organisms of the Norwegian Scientific Committee for Food Safety
(Research report; Forskningsrapport, 2013-10-18)In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Scientific Committee for Food Safety (VKM) has been requested by the Norwegian Environment Agency (former Norwegian Directorate for Nature Management) and the Norwegian Food Safety Authority (NFSA) to conduct final food/feed and environmental risk assessments for all genetically modified organisms (GMOs) and products ... -
Dust sputtering within the inner heliosphere: a modelling study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-03)The aim of this study is to investigate how sputtering by impacting solar wind particles influence the lifetime of dust particles in the inner heliosphere near the Sun.<p><p> We consider three typical dust materials: silicate, Fe<sub>0.4</sub>Mg<sub>0.6</sub>O and carbon and describe their sputtering yields based on atomic yields given by the Stopping and Range of Ions in Matter (SRIM) package. ... -
Can Mineral Oil Slicks Be Distinguished From Newly Formed Sea Ice Using Synthetic Aperture Radar?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-18)In this feasibility study discriminating oil slicks and newly formed sea ice using SAR imagery is investigated, using imagery from the L-band high-resolution Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) airborne and the satellite C-band RADARSAT-2 (RS-2) systems. To determine the separability of these two varying but similar appearing low backscatter ocean surfaces, multi-polarization ...
