Browsing Department of Biological Sciences by Issue Date
Now showing items 21-40 of 2476
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Organization, transformation, and activation of the melanocortin system in Atlantic salmon
(Doctoral thesis, 2023-11-03)Atlantisk laks (Salmo salar) er en nøkkelart i norsk havbruk. Det trengs imidlertid mer kunnskap og teknologi for å kontinuerlig utvikle mer bærekraftig produksjon, forbedre dyrevelferden og for å øke den økonomiske verdien ... -
The effects of different feed ratios on growth, welfare rating and maturation in juvenile Atlantic salmon (Salmo salar ,L)
(Master thesis, 2023-10-20)The world population is increasing day by day and has surpassed 8 billion, and there will continue to be high demands of more protein to feed the world. Salmon farming is a rapidly growing industry and has been for the ... -
Environmental DNA methods for detection of wild Atlantic salmon (Salmo salar L.) in Haugsdalselva, Masfjorden, Norway o
(Master thesis, 2023-10-03) -
Exploring the Condition of Fish Welfare and Microbial Dynamics in Egget® – a Novel Closed Aquaculture System at Sea
(Master thesis, 2023-10-02)The Norwegian Atlantic salmon (Salmo salar) aquaculture industry faces significant challenges, prompting the need for innovative approaches to enhance sustainability. One such innovation is the prototype Egget®, a novel ... -
Size distribution pattern and abundance of Periphylla periphylla in western Norwegian fjords
(Master thesis, 2023-10-02) -
Development of chemogenetic tools from invertebrate ion channels
(Doctoral thesis, 2023-09-28)Reseptorer som er konstruert for heterolog ekspressjon og aktivitet kun som respons på spesifikke eksogene ligander er kjent som kjemogenetiske verktøy og brukes til å studere hjernefunksjon ved å nøyaktig modulere elektrisk ... -
Genomic Signatures of Local Adaptation under High Gene Flow in Lumpfish—Implications for Broodstock Provenance Sourcing and Larval Production
(Journal article; Peer reviewed, 2023-09-26)Aquaculture of the lumpfish (Cyclopterus lumpus L.) has become a large, lucrative industry owing to the escalating demand for “cleaner fish” to minimise sea lice infestations in Atlantic salmon mariculture farms. We used ... -
Decoding Springtime Oxidation in Postsmolt Atlantic Salmon: Implications for Redox Signaling and Growth
(Doctoral thesis, 2023-09-22)Fisk er en integrert del av akvatiske økosystemer, og deres evne til å takle miljøendringer er en viktig global bekymring. Oppdrettet atlantisk laks i sjømerder er eksponert for ulike miljøforhold, inkludert endringer i ... -
Cleaner Fish Do Not Impact the Pigmentation of Salmon Lice (Lepeophtheirus salmonis) in Commercial Aquaculture Cages
(Journal article; Peer reviewed, 2023-09-10)Salmon lice are one of the biggest challenges to sustainable salmonid aquaculture. The species display high evolutionary potential, which is evident by its development of resistance to numerous chemical compounds used for ... -
Studie av retinoid X reseptorer (Rxr) og Rxr -signalveier i Atlanterhavstorsk (Gadus morhua) ved bruk av immunokjemiske of ex vivo teknikker
(Master thesis, 2023-09-04)Nuclear receptors (NRs) comprise a large superfamily of ligand-activated transcription factors. Many NRs facilitate gene expression through heterodimeric binding to retinoid X receptor (RXR). RXR is thus part of a vast ... -
The role of spatial dependency in niche shifts of invasive species
(Master thesis, 2023-09-01)Invasive species are an ongoing threat to nature and human interests. Species distribution models are used to predict the current and potential distribution of invasive species, but doing so has proved difficult. One ... -
Morphometric Relationships as Indicators of Sexual Maturation in Atlantic Salmon (Salmo salar)
(Master thesis, 2023-09-01)This study aimed to identify morphometric relationships in fish that could serve as indicators for status on sexual maturation in Atlantic salmon (Salmo salar). To achieve this, 250 salmon were netted out and individually ... -
Environmental Drivers of Demersal Fish and Crustacean Community Structure in West Norwegian Fjords
(Master thesis, 2023-09-01)Norwegian fjords, with their complex bathymetry and deep basins, are easily accessible study areas for deep sea communities. Impacts of climate change and increasing pressure from anthropogenic activities on fjord ecosystems, ... -
Smitteforsøk med Lepeophtheirus salmonis på Oncorhynchus gorbuscha og Salmo salar
(Master thesis, 2023-08-28)Hovedmålet med denne studien var å teste om kopepoditter av lakselus (Lepeophtheirus salmonis) som har vært festet på pukkellaks (Oncorhynchus gorbuscha) kan smitte og etablere seg på atlantisk laks (Salmo salar) eller om ... -
Tailoring mRNA towards future vaccine for lumpfish (Cyclopterus lumpus) – Protein expression and immune responses
(Master thesis, 2023-08-01)Lumpfish plays an important role in aquaculture, where it is used to combat sea lice infestations among farmed salmon, acting as a biological alternative to chemical and physical treatment. As a relative newcomer to ... -
Elevated sea temperature combined with dietary methionine levels affect feed intake and appetite-related neuropeptide expression in the brains of juvenile cobia (Rachycentron canadum)
(Journal article; Peer reviewed, 2023-07-04)This study aimed to determine the impact of elevated temperature combined with different levels of dietary methionine concentrations on feed intake (FI) and brain expression of selected neuropeptides and one receptor ... -
Microplastic in subsurface water in the South Pacific Ocean
(Master thesis, 2023-07-01)Microplastic (MP) in the world’s oceans is a global concern. Studies on MP are frequently published, but there is limited information on MP in the South Pacific Ocean. Here, a seawater filtration unit collected MPs down ...