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norskFakultet for biovitenskap, fiskeri og økonomi
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Handelshøgskolen ved UiT [1401]
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The Eurasian Arctic Ocean along the MOSAiC drift in 2019–2020: An interdisciplinary perspective on physical properties and processes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-05)The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC, 2019–2020), a year-long drift with the Arctic sea ice, has provided the scientific community with an unprecedented, multidisciplinary dataset from the Eurasian Arctic Ocean, covering high atmosphere to deep ocean across all seasons. However, the heterogeneity of data and the superposition of spatial and temporal ... -
Marine-Derived Peptides with Anti-Hypertensive Properties: Prospects for Pharmaceuticals, Supplements, and Functional Food
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-22)Hypertension, a major health concern linked to heart disease and premature mortality, has prompted a search for alternative treatments due to side effects of existing medications. Sustainable harvesting of low-trophic marine organisms not only enhances food security but also provides a variety of bioactive molecules, including peptides. Despite comprising only a fraction of active natural compounds, ... -
Panel-based assessment of ecosystem condition as a platform for adaptive and knowledge driven management
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-09-13)Ecosystems are subjected to increasing exposure to multiple anthropogenic drivers. This has led to the development of national and international accounting systems describing the condition of ecosystems, often based on few, highly aggregated indicators. Such accounting systems would benefit from a stronger theoretical and empirical underpinning of ecosystem dynamics. Operational tools for ecosystem ... -
Parasites alter food-web topology of a subarctic lake food web and its pelagic and benthic compartments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-07)We compared three sets of highly resolved food webs with and without parasites for a subarctic lake system corresponding to its pelagic and benthic compartments and the whole-lake food web. Key topological food-web metrics were calculated for each set of compartments to explore the role parasites play in food-web topology in these highly contrasting webs. After controlling for effects from ... -
Herbivore diversity effects on Arctic tundra ecosystems: a systematic review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-25)Background Northern ecosystems are strongly influenced by herbivores that differ in their impacts on the eco‑ system. Yet the role of herbivore diversity in shaping the structure and functioning of tundra ecosystems has been overlooked. With climate and land-use changes causing rapid shifts in Arctic species assemblages, a better under‑ standing of the consequences of herbivore diversity changes for ... -
Fortrinn bygd på tilgang til viktige fiskefelt
(Master thesis; Mastergradsoppgave, 2024-06-17)Denne masteroppgaven undersøker hvordan norske fiskeres konkurransefortrinn påvirkes når de mister tilgang til viktige fiskefelt. Hensikten er å utforske hvordan internasjonale politiske endringer påvirker fiskerienes strategi og effekten av dette. Studien undersøker derfor endringer i lønnsomheten til fiskeriene ved å analysere endringer i fangstkostnader og fangstverdi knyttet til ressursen før ... -
Effects of diet and the vgll3 locus on male maturation and sperm traits of Atlantic salmon
(Master thesis; Mastergradsoppgave, 2024-06-17)A challenge in Norwegian Atlantic salmon (Salmo salar) aquaculture is unwanted early maturation in male fish. Environmental factors such as diet and genetic factors such as the vgll3 locus, are key mediators of male maturation and reproduction. In this study, different feeding treatments, alongside the vgll3 locus, was analyzed to assess their influence on maturation and sperm traits on four-year ... -
Secondary Metabolites from Marine Invertebrate Extracts
(Master thesis; Mastergradsoppgave, 2024-05-15)In drug discovery, natural organisms offer a rich source of bioactive compounds, with over one-third of drugs originating from natural sources. Bioprospecting is the field of systematically screening organisms to discover and isolate novel compounds for drug development or other applications. With the shifting trends of examining the biodiversity of the marine environment, have marine bioprospecting ... -
Preferanser for norsk torsk hos vietnamesiske forbrukere
(Master thesis; Mastergradsoppgave, 2024-05-15)Formålet med denne studien er å identifisere muligheter og barrierer for norsk torsk i Vietnam, med hensyn til forbrukernes preferanser. Studien har benyttet seg av kvalitativ metode, der data har blitt samlet inn gjennom fokusgrupper med informanter fra Vietnam. Informantene har erfaring fra arbeid innenfor 4-5 stjerners hoteller og restauranter. Fokusgruppene ble gjennomført i byen Nha Trang, 22. ... -
Unravelling population genetic structure of Arctogadus glacialis in Northeast Greenland with whole genome sequencing
(Master thesis; Mastergradsoppgave, 2024-05-15)With rapidly increasing temperatures, reducing ice cover and lower albedo, the physico-chemical conditions in the Arctic fluctuate more than any other place on the planet, especially in the light of the current climate change. This has a severe effect on e.g. Arctic marine eco- systems, which make marine species good indicators, as they are in close contact with environmental gradients. One of which ... -
An Antiherpesviral Host-Directed Strategy Based on CDK7 Covalently Binding Drugs: Target-Selective, Picomolar-Dose, Cross-Virus Reactivity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-23)he repertoire of currently available antiviral drugs spans therapeutic applications against a number of important human pathogens distributed worldwide. These include cases of the pandemic severe acute respiratory coronavirus type 2 (SARS-CoV-2 or COVID-19), human immunodeficiency virus type 1 (HIV-1 or AIDS), and the pregnancy- and posttransplant-relevant human cytomegalovirus (HCMV). In almost ... -
Use of Algae in Aquaculture: A Review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-01)The utilization of algae in aquaculture is environmentally friendly, safe, and cost-effective and can effectively substitute for fish meal and fish oil in aquatic feeds. Incorporating algae as dietary supplements leads to significant enhancements in aquatic animals’ health and also improves the aquatic ecosystem. Algae are rich sources of nutrients and serve as the foundational food source in ... -
Changing species dominance patterns of Boreal-Arctic heathlands: evidence of biotic homogenization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-29)Heathlands are extensive systems often dominated by slow-growing and long-lived woody plants. These systems require longer-term studies to capture if and how they are changing over time. In 2020, we resurveyed species richness and cover of vascular plant communities in 139 heathlands along the coastline of northern Fennoscandia, first surveyed during 1965–1975. The first survey included six ... -
Replacing fishmeal with salmon hydrolysate reduces the expression of intestinal inflammatory markers and modulates the gut microbiota in Atlantic salmon (Salmo salar)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-22)The feed legislation allows the use of fish protein hydrolysates in feed for the same species in which it came from, since enzymatic hydrolysis degrades the proteins and eliminates potential prions, which have caused disease in mammals, but not in fish. In this trial, we investigated the effects of partially replacing dietary fishmeal (FM) with salmon protein hydrolysate (FPH) on the intestinal gene ... -
Comparing the size selectivity and exploitation patterns of two T0 codends with T90 codends in demersal trawl fishery targeting white croaker (Pennahia argentata) of the northern South China Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-28)The size selectivity and exploitation patterns of two T0 (diamond mesh) codends were tested and compared with T90 (diamond mesh turned by 90◦) codends in demersal trawl fishery targeting white croaker (Pennahia argentata) of the northern South China Sea. The four experimental codends involved two mesh sizes, 30 and 35 mm, respectively. The size selectivity of the T0 codend with mesh size of ... -
Camera traps reveal seasonal variation in activity and occupancy of the Alpine mountain hare Lepus timidus varronis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-01)Mountain hare is a cold-adapted species threatened by climate change, but despite its emblematic nature, our understanding of the causes of population decline remains limited. Camera traps are increasingly used in ecology as a tool for monitoring animal populations at large spatial and temporal scales. In mountain environments where field work is constrained by difficult access and harsh ... -
Clustering asset markets based on volatility connectedness to political news
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-05-13)To assess similarities in international asset markets’ responses to political news, we construct a political news index using advanced natural language processing. We then examine how the volatility across international asset markets is connected to the development of our political news index by measuring the daily directional connectedness using a VAR-based framework. Finally, we apply an ... -
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-11)Monitoring programs that integrate both structural and functional ecosystem components play integral roles in ecosystem management and conservation planning. In the early 1990’s, the marine ecosystem of the waters surrounding Newfoundland and Labrador (NL) underwent a regime shift. Several demersal and pelagic fish stocks collapsed simultaneously, and this had significant ecological and socioeconomic ... -
Exploring the potential of extreme citizen science with Danish high school students using environmental DNA for marine monitoring
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-05)Background This study aims to assess the efficacy and safety of Qingpeng ointment (QPO), a Tibetan medicine for alleviating symptoms in individuals with acute gouty arthritis (AGA). Methods This study was a randomized, double-blind, placebo-controlled trial that involved individuals with AGA whose joint pain, as measured on a visual analog scale (VAS) from 0 to 10, was equal to or greater than ... -
Brute force prey metabarcoding to explore the diets of small invertebrates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-05-06)Prey metabarcoding has become a popular tool in molecular ecology for resolving trophic interactions at high resolution, from various sample types and animals. To date, most predator–prey studies of small-sized animals (<1 mm) have met the problem of overabundant predator DNA in dietary samples by adding blocking primers/ peptide nucleic acids. These primers aim to limit the PCR amplification ...
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