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norskFakultet for biovitenskap, fiskeri og økonomi
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Seasonal variation in the nutritional composition and potentially toxic elements of the red macroalga Palmaria palmata in the Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-04-24)Algae can be a sustainable food source rich in proteins, polysaccharides, minerals and vitamins. These compounds will vary greatly due to seasonal and environmental fluctuations. The present study investigated the seasonal variations in the nutritional composition and potentially toxic elements of P. palmata harvested monthly in the Arctic, characterized by polar nights and midnight sun. A seasonal ... -
Determination of chemical contaminants in marine fish species from the coast of Myanmar
(Master thesis; Mastergradsoppgave, 2022-05-23)Fish represents an important source of food in Myanmar. Occasionally, fish can be a major route for contaminants that may constitute a health risk to consumers. This study reports the levels of arsenic, mercury, lead, and cadmium in 40 marine fish species from the coast of Myanmar and assesses the potential exposure and health risk of fish consumption. The concentrations of heavy metals (mercury, ... -
Nutritional value of marine fish species in the coastal areas of Myanmar
(Master thesis; Mastergradsoppgave, 2022-05-23)Fish plays a major role in the food and nutrition security of many people around the world. Fish are regarded a nutritionally beneficial component of the human diet due to the availability of both macronutrients (protein and fat) and micronutrients (vitamins, minerals, and trace elements). Therefore, fish, may play a key role in the prevention of micronutrient deficiency diseases in low- and ... -
A specialist predator in a food web with cyclic alternative prey:The gyrfalcon-ptarmigan case revisited
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-05-02)<ol> <li>Population dynamics of specialist predators are tightly linked to their main prey and can in simple food webs lead to complex predator–prey interactions (e.g. predator–prey cycles). However, the strength of these interactions may be affected by the availability of alternative prey if it appears in high numbers and the predator diet is sufficiently flexible.</li> <li>A prominent example of ... -
Biokjemisk sammensetning av vill og oppdrettet rognkjeks (Cyclopterus lumpus) - enzymatisk hydrolyse og bioaktivitet
(Master thesis; Mastergradsoppgave, 2022-05-25)En økende verdensbefolkning vil ha et økende behov for mat, og derfor er det viktig å lete etter nye matressurser, samt bruke av de uutnyttede ressurser vi allerede har tilgjengelig. I Norge fangstes rognkjeks for høsting av rogn, i tillegg brukes rognkjeksen i havbruksnæringen som en biologisk avlusningsmetode for oppdrettslaks. Restråstoffet av både vill og oppdrettet rognkjeks går hovedsakelig ... -
Curiography
(Chapter; Bokkapittel, 2025)This entry introduces curiography as an innovative way of doing research in the era of the Anthropocene. Curiography is an epistemological framework that applies and critically evaluates the philosophical potential of curiosity to practice academic inquiry. It challenges the anthropocentric legacy of ethnographic methodology by inviting its practitioner to move beyond dominating human-centric methods ... -
Roadmap to sustainably develop the European seaweed industry
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-05-13)How to build a sustainable seaweed industry is important in Europe’s quest to produce 8 million tons of seaweed by 2030. Based on interviews with industry representatives and an expert-workshop, we developed an interdisciplinary roadmap that addresses sustainable development holistically. We argue that sustainable practices must leverage synergies with existing industries (e.g. IMTA systems, offshore ... -
BioTIME 2.0: Expanding and Improving a Database ofBiodiversity Time Series
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-05-14)Motivation - Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, ... -
Scientific report from the Norwegian and Russian Barents Sea ecosystem surveys in August-October 2024 (BESS)
(Research report; Forskningsrapport, 2025-05-08)The aim of the national Norwegian/Russian ecosystem surveys in the Barents Sea and adjacent waters, August- October (BESS) is to monitor the status and changes in the Barents Sea ecosystem and provide data to support scientific research and manager advice. The survey has since 2004 been conducted annually in the autumn, as a collaboration between the Institute of Marine Research (IMR) in Norway ... -
Inappropriate Behavior and Dropout from Sport: A Quantitative Study of Elite Athletes in Denmark
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025)In the international sporting arms race to win medals at major tournaments, addressing the determinants of elite athlete dropout is essential. This is especially true for smaller nations, which are at a disadvantage to large nations when it comes to the availability of talent. Therefore, the retention of the elite is essential. In this paper, we examine survey data from Danish top-level athletes to ... -
Animal ethnography and a relational approach to sustainability: methodological challenges and opportunities in wildlife tourism
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-05-15)We adopted a collaborative research approach involving two tourism scholars, a biologist and a photojournalist to discuss ethnography and sustainability from a posthuman ecofeminist perspective. We focused on ethnography as a potentially fruitful methodology for supporting justice in wildlife tourism. We reviewed the literature on more-than-human methodologies, including emerging studies on animal ... -
I hvilken grad bidrar ASC-sertifisering til å fremme bærekraft og økt legitimitet i oppdrettsnæringen? En kvalitativstudie om ASC-sertifiseringens innflytelse i oppdrettsnæringen
(Master thesis; Mastergradsoppgave, 2024-05-15)Bærekraftig utvikling har blitt et dominerende tema i norsk oppdrettsnæring, og blir betraktet som et sentralt aspekt for å løse utfordringer som næringen står overfor. De sentrale utfordringer i oppdrettsnæring er blant annet rømning, forurensing av det ytre miljø, forekomst av lus og fiskehelserelaterte utfordringer. I tillegg til de miljø og fiskevelferdsmessige utfordringer, er det også stadig ... -
A 5’ fusion peptide causes heterologous over-expression: designing, cloning and testing the effect of multiple fusion peptide variants in Escherichia coli and Aliivibrio wodanis
(Master thesis; Mastergradsoppgave, 2024-05-15)Since its introduction, recombinant protein production has opened an important market for industrial applications. While Escherichia coli is undoubtedly the most commonly used bacterium for protein production, its use has limits in the variety of proteins it can successfully produce. One such limitation is the production of cold-adapted proteins. Their high activity at low temperatures and potential ... -
Koronapandemiens effekter på hvitfiskindustrien. En kvalitativ undersøkelse av industriens tilpasningsevner i krisetider
(Master thesis; Mastergradsoppgave, 2023-05-15)Denne masteroppgaven har som formål å undersøke hvitfisknæringens evne til å tilpasse seg endringer skapt av Covid-19. Den strategiske tilpasningsevnen undersøkes ved å se om bedriftene har egenskaper som fleksibilitet for å håndtere de usikre omgivelsene skapt av pandemien. Bransjen som studeres er kjent for å operere under en normaltilstand i turbulente omgivelser. Undersøkelsen har avdekket at ... -
Hvem driver frem innovasjoner? Bedrifters forutsetninger i en gryende næring
(Master thesis; Mastergradsoppgave, 2024-05-15)Økende etterspørsel etter sjømat stimulerer til innovasjon. Likevel viser flere forsøk på torskeoppdrett uten kommersiell suksess, at oppdrett av marine arter er utfordrende. Med reduserte kvoter på villtorsk er det igjen økt interesse for å etablere seg innen torskeoppdrett. Kunnskapsgrunnlaget er derimot fortsatt svakt og nyetableringer i seg selv innebærer høy risiko. Selv om den gryende næringen ... -
Den vanskelige avveiningen mellom effektivitet og kvalitet. Effekten av innføringen av dynamiske minstepriser
(Master thesis; Mastergradsoppgave, 2024-05-15)Økende befolkningsvekst skaper et økt behov for mat. Et slikt press på de allerede eksisterende ressursene fører til behov for å utnytte enhver ressurs fulle ernæringsmessig potensial. Sjømat blir ansett som en viktig kilde for å imøtekomme dette voksende behovet for økt bærekraftig matsikkerhet. Det er derfor viktig å sikre at alle ressurser som høstes fra havet er av høy kvalitet. En utfordring ... -
Impact of climate change and invasion on high latitude populations of freshwater fish
(Master thesis; Mastergradsoppgave, 2024-05-15)Rapid climate change significantly impacts high-latitude freshwater ecosystems, altering thermal regimes and ecological dynamics. This study examines the lakes Vaggatem and Skrukkebukta in Pasvik in Northern Norway, where recent decades have seen average increases in surface water temperatures of 0.45°C per decade, accompanied by a modelled 0.07°C decadal rise in hypolimnetic water temperatures, ... -
Studying the Expression of Bilberry Fruit Softening-related Cellulase (GH9) and Hemicellulase (XTH) Gene Families by Developing a Primer Selection Tool
(Master thesis; Mastergradsoppgave, 2023-05-14)Fruit softening is linked to degradation of cell walls by hydrolytic enzymes, such as members of GH9 and XTH family. In this study, we aim to identify the members of the large gene families that cause the cell wall modifying effects, as they can become a target of future research related to food waste prevention and biofuel production. A tool is developed to help in the process of finding qPCR primers ... -
On the appetites of small copepods and nematodes in the Arctic Barents Sea and Nansen Basin: In situ trophic interactions revealed by brute force prey metabarcoding
(Doctoral thesis; Doktorgradsavhandling, 2025-05-26)Small invertebrates (≤ 2 mm) are key members of the Arctic marine ecosystem, yet their trophic interactions have rarely been researched due to methodological challenges. In this thesis, a novel brute force approach to prey metabarcoding was developed and applied to characterize the trophic interactions of small pelagic copepods and benthic nematodes over four seasons in the Barents Sea and Nansen ... -
Environmental effects monitoring of offshore oil and gas activities on the Norwegian continental shelf: A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-04-24)This review examines the evolution and findings of Norway's offshore environmental monitoring (OEM) program over the past five decades. The program targets soft sediments, water column organisms, and deep-water epifauna across the Norwegian Continental Shelf (NCS) to assess the impacts of offshore oil and gas activities. The program is required by Norwegian authorities and financed by oil and gas ...
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