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norskFakultet for biovitenskap, fiskeri og økonomi: Recent submissions
Now showing items 1-20 of 5228
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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 ... -
Effects of the dark triad on word of mouth in the luxury context: the moderating role of opinion divergence
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-12)The study examines the effects of the dark triad traits (i.e., psychopathy, narcissism, and Machiavellianism) on positive word-of-mouth (WOM) intention for luxury products, and the moderating role of others’ opinion divergence (i.e., whether or not a consumer’s opinion deviates from that of the reference group). An experiment with 208 respondents tested the research hypotheses, shedding light on the ... -
Norsk torsk krysser Atlanteren
(Master thesis; Mastergradsoppgave, 2024-06-12)Denne masteroppgaven omfatter en analyse av interne og eksterne faktorer som kan påvirke beslutninger knyttet til eksport av norsk torsk til USA. Gjennom en SWOT-analyse vurderes styrker, svakheter, muligheter og trusler for to grupper: importører og eksportører. For å adressere problemstillingen brukes VRIO- og PESTEL-rammeverkene til å identifisere og analysere interne og eksterne faktorer som ... -
Varighet av immunresponser mot bakterieantigener hos vaksinert atlantisk laks i sjø – et feltstudie
(Master thesis; Mastergradsoppgave, 2024-05-25)Oppdrett av atlantisk laks er en stor næring i Norge i dag, men opplever problematikk med blant annet sykdom. Det arbeides med å utvikle gode og effektive vaksiner for å forhindre alvorlige sykdomsproblemer og opprettholde god fiskevelferd. For å kunne bidra til videre vekst i næringen er det derfor viktig å få en god forståelse for immunsystemet til fisk og undersøke vaksineresponser for å utvikle ... -
Effekt av ulike temperaturregimer på hjerteutvikling hos Atlantisk laks (Salmo salar L.) i resirkuleringsanlegg (RAS)
(Master thesis; Mastergradsoppgave, 2024-05-22)Økt dødelig i oppdrettsnæringen ansees som et betydelig problem både for omdømme, økonomi og mest av alt for fiskevelferden. Det spekuleres i om nedsatt smoltkvalitet grunnet intensiv drift i settefiskfasen kan være en medvirkende årsak til den økende dødeligheten. Oppdrett av settefisk i RAS kommer med en rekke fordeler, men det er lite studert hvilken påvirkning ulike miljøfaktorer i RAS har for ... -
Inhibition of cortisol signaling and development of the hypothalamus-pituitary-interrenal axis (HPI-axis) during early ontogeny of Atlantic salmon (Salmo salar L.)
(Master thesis; Mastergradsoppgave, 2024-05-22)During early development much of the fish’s physiological capacity and fitness is established. Still, our understanding of how the early development (endogenous and external) communicate with and influence embryonic development in fish is limited. This study investigated how signaling of maternal cortisol may influence early embryogenesis, with particular focus on the development of the hypothalam ... -
Kvalitetsendringer hos pukkellaks (Oncorhynchus gorbuscha) i forbindelse med kjønnsmodning
(Master thesis; Mastergradsoppgave, 2024-05-15)Den store forekomsten av pukkellaks (Oncorhynchus gorbuscha) langs kysten og elvene i Norge har siden 2017 ført til stor oppmerksomhet rundt arten. Det har vært innført flere tiltak for bekjempelse av den invaderende arten, hvor fokuset har vært å forhindre mest mulig fisk i å gyte. Fisken har blitt sett på som et problem, og ikke blitt forvaltet som en potensiell ressurs. Dette studiet ble ... -
Teknologiutvikling og strategival i autolineflåten: ein kvalitativ casestudie rundt teknologiadopsjon og korleis endringar i rammevilkår påverkar strategiske val.
(Master thesis; Mastergradsoppgave, 2024-05-15)Fiskaren i dag i ei næring som er i stadig endring når det kjem til statlege reguleringar, politikk og teknologiskutvikling og gjennom dei to siste tiåra har det skjedd fleire endringar i fisket. Korleis ser fiskaren på strukturering eller avgifter for klimagassar og kva driv ein til å ta i bruk teknologi. Ved å kunne sjå på kva eksterne variablar som påverke strategiske val og teknologibruk vil ein ... -
Characterization of fish skin mucus using mass spectrometry methods Investigation of biochemical differences in mucus of different fish species and sea lice
(Master thesis; Mastergradsoppgave, 2024-05-15)The epidermal mucus layer of fish covers the entire exterior, including gills and fins. This barrier plays a crucial role in protecting and maintaining the skin heath, while it also reflects the fish’s welfare. The primary aims of this master’s thesis were to develop an in-lab methodology for analyzing fish skin mucus using Matrix Assisted Laser Desorption/ionization Time of Flight Mass Spectrometry ... -
Havbruk til havs: Fra konsesjon til konkurransefortrinn?
(Master thesis; Mastergradsoppgave, 2024-05-15)Temaet for denne oppgaven er hvordan utviklingskonsesjoner for Havbruk til havs representerer fremtidige konkurransefortrinn. Formålet er å se nærmere på hvorvidt implementeringen av oppdrett på eksponerte lokaliteter representerer en innovasjon i næringen, og hvordan ressursmessige forutsetninger som skal til for å gjennomføre disse. Herunder ligger hvilke tiltak og aspekter som på sikt kan ... -
Kvalitetsendringer hos pukkellaks (Oncorhynchus gorbuscha) i forbindelse med kjønnsmodning
(Master thesis; Mastergradsoppgave, 2024-05-15)Den store forekomsten av pukkellaks (Oncorhynchus gorbuscha) langs kysten og elvene i Norge har siden 2017 ført til stor oppmerksomhet rundt arten. Det har vært innført flere tiltak for bekjempelse av den invaderende arten, hvor fokuset har vært å forhindre mest mulig fisk i å gyte. Fisken har blitt sett på som et problem, og ikke blitt forvaltet som en potensiell ressurs. Dette studiet ble gjennomført ...
