Recent additions

  • Bærekraft i oppdrettskonsepter: Hva er bærekraftig oppdrett og hvor bærekraftig er ulike oppdrettskonspeter? 

    Emblem-Lund, Henrik (Master thesis; Mastergradsoppgave, 2022-05-16)
    Vekst i norsk lakseoppdrett har ført til et økende fokus på bærekraft, etterfulgt av en oppgang i utvikling av nye oppdrettskonsepter for å løse utfordringene dagens næring står ovenfor. En tydelig forståelse i definisjon og operasjonalisering av bærekraft er avgjørende for riktig veivalg fremover. En forståelse som vil gjøre vurderinger og valg av ulike oppdrettskonsepter i et bærekraftaspekt enklere ...
  • Seabed minerals in Norway. An analysis of conflicts and sustainability issues. 

    Skancke, Ida Seljevoll (Master thesis; Mastergradsoppgave, 2022-05-16)
    The increasing demand for metals for use in renewable technologies and electronics has led to a surge in the interest in the minerals found on the seabed. The demand is driven by the need for green technologies to reach climate goals, population growth, and environmental, social, and economic challenges with today’s mining methods on land. Deep-sea mining is an industry still in its infancy, and ...
  • Increasing catch efficiency for Nephrops in deep-water shrimp (Pandalus borealis) trawl fisheries 

    Ingólfsson, Ólafur Arnar; Jørgensen, Terje; Sistiaga, Manu; Herrmann, Bent; Kvalvik, Liz Beate Kolstad (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-14)
    In Skagerrak and the North Sea, coastal vessels harvest deep-water shrimp (Pandalus borealis) in a mixed fishery, in which catches of Nephrops (Nephrops norvegicus) are of economic importance for the fleet. Fishermen targeting shrimp in this area must use a sorting grid with a maximum bar spacing of 19 mm, which means that only the smallest Nephrops can pass through the grid to be retained in the ...
  • Diagnostikk av parasittsykdommer 

    Dale, Ole Bendik; Hansen, Haakon; Tørud, Brit; Erkinharju, Toni; Gjessing, Mona Cecilie (Journal article; Tidsskriftartikkel, 2022)
    Parasitter er alle snyltere, men de tilhører svært ulike grupper og har et mangfoldig levesett!
  • The fate of conventional and potentially degradable gillnets in a seawater-sediment system 

    Brakstad, Odd Gunnar; Sørensen, Lisbet; Hakvåg, Sigrid; Føre, Heidi Moe; Su, Biao; Aas, Marianne; Ribicic, Deni; Grimaldo, Eduardo (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-20)
    Abandoned gillnets in the marine environment represent a global environmental risk due to the ghost fishing caused by the nets. Degradation of conventional nylon gillnets was compared to that of nets made of poly- butylene succinate co-adipate-co-terephthalate (PBSAT) that are designed to degrade more readily in the envi- ronment. Gillnet filaments were incubated in microcosms of natural seawater ...
  • “Public perceptions of pink salmon in Norway and willingness to pay for the current eradication management program” 

    Aasmaa, Ekaterina (Master thesis; Mastergradsoppgave, 2022-05-13)
    Abstract Since 2017, Norway has experienced a large influx of Pacific pink salmon (Oncorhynchus gorbusha), and this species occurrence has created challenges for society, businesses, the environment, and policymakers. However, there is currently no consensus on whether pink salmon is a new resource or a pest in Norway. While some people perceive pink salmon as a food resource and a good recreational ...
  • Infectious salmon anemia virus (ISAV) replication is transiently inhibited by Atlantic salmon type I interferon in cell culture 

    Svingerud, Tina; Holand, Jenni; Robertsen, Børre (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-08-20)
    Infectious salmon anemia virus (ISAV) is a piscine orthomyxovirus, which causes multisystemic disease in farmed Atlantic salmon that may result in large losses. Previous work has suggested that ISAV is able to resist the antiviral state induced in cells by type I interferon (IFN). These studies were, however, mainly based on cytopathic effect (CPE) reduction assays. Here we have investigated the ...
  • Progress in fish gastrointestinal microbiota research 

    Wang, An R; Ran, Chao; Ringø, Einar; Zhou, Zhigang (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-02)
    The gastrointestinal (GI) microbiota of vertebrates plays critical roles in nutrition, development, immunity and resistance against invasive pathogens. In the past decade, research of the GI microbiota of mammals has drastically increased our knowledge on the microbiota and their relationship with health and disease. However, our understanding of fish intestinal microbiota is limited. This ...
  • The teleost polymeric Ig receptor counterpart in ballan wrasse (Labrus bergylta) differs from pIgR in higher vertebrates 

    Etayo, Angela; Bjørgen, Håvard; Koppang, Erling Olaf; Hordvik, Ivar (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-13)
    As mucosal barriers in fish are the main sites where pathogens are encountered, mucosal immunity is crucial to avoid infection in the aquatic environment. In teleost fish, immunoglobulins are present in gut, gill and skin mucus, although not in the same amounts as in higher vertebrates. In mammals, the poly-Ig receptor (pIgR) is synthesized in epithelial cells and mediates the active transport ...
  • Protection of Atlantic salmon against virus infection by intramuscular injection of IFNc expression plasmid 

    Chang, Chia Jung; Robertsen, Camilla; Sun, Baojian; Robertsen, Børre (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-07-02)
    n this work we have tested the in vivo antiviral activity of type I interferons (IFNs) in Atlantic salmon by injecting presmolts intramuscularly (i.m.) with plasmids encoding IFNa1, IFNb or IFNc under the control of a CMV promoter, and measured expression of antiviral genes in organs and protection against infection with infectious salmon anemia virus (ISAV)infection. Allthree IFN plasmids induced ...
  • Modeling the "microbial chassis effect" on the performance of a genetic switch 

    Verusevski, Vanja (Master thesis; Mastergradsoppgave, 2022-03-21)
    Escherichia coli is one of the most established bacterial hosts for genetic devices, partially due to the available knowledge and tools for ease of manipulation. However, there is an incentive to increase the current number of available recipients. For instance, marine bacteria are being recognized for their potential as microbial "chassis" due to their rich genetic and metabolic diversity. With ...
  • Get out of the BAG! Silos in AI Ethics Education: Unsupervised Topic Modeling Analysis of Global AI Curricula 

    Javed, Rana Tallal; Nasir, Osama; Vanhée, Loïs; Borit, Melania; Zea, Elias; Gupta, Shivam; Vinuesa, Ricardo; Qadir, Junaid (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-26)
    The domain of Artificial Intelligence (AI) ethics is not new, with discussions going back at least 40 years. Teaching the principles and requirements of ethical AI to students is considered an essential part of this domain, with an increasing number of technical AI courses taught at several higher-education institutions around the globe including content related to ethics. By using Latent Dirichlet ...
  • Monitoring bacterial community dynamics in a drinking water treatment plant: an integrative approach using metabarcoding and microbial indicators in large water volumes 

    Pinar-Méndez, Anna; Wangensteen, Owen S.; Præbel, Kim; Galofré, Belén; Méndez, Javier; Blanch, Anicet R.; García-Aljaro, Cristina (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-30)
    Monitoring bacterial communities in a drinking water treatment plant (DWTP) may help to understand their regular operations. Bacterial community dynamics in an advanced full-scale DWTP were analyzed by 16S rRNA metabarcoding, and microbial water quality indicators were determined at nine different stages of potabilization: river water and groundwater intake, decantation, sand filtration, ozonization, ...
  • For all audiences: Incorporating immature stages into standardised spider inventories has a major impact on the assessment of biodiversity patterns 

    Domènech, Marc; Wangensteen, Owen S.; Enguídanos, Alba; Malumbres-Olarte, Jagoba; Arnedo, Miquel A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-25)
    Although arthropods are the largest component of animal diversity, they are traditionally underrepresented in biological inventories and monitoring programmes. However, no biodiversity assessment can be considered informative without including them. Arthropod immature stages are often discarded during sorting, despite frequently representing more than half of the collected individuals. To date, ...
  • Kiselalger som fôrkomponent i laksefôr. Biokjemisk sammensetning og fettsyreprofil hos atlantisk laks (Salmo salar L.) fôret med ulike lipid- og proteinkilder 

    Heimland, Maria (Master thesis; Mastergradsoppgave, 2020-05-15)
    Det økende behovet for marine ressurser som ingrediens i fôr har ført til et søk etter nye ressurser, da dagens ressurser ikke lengre er bærekraftig. For å øke utbytte er det foreslått å rette søket lengre ned i næringskjeden. Marine kiselalger er et eksempel på slike organismer. Disse er ikke godt utnyttet i dag, hovedsakelig på grunn av manglende kunnskap rundt teknologi, samt forskning på hvilke ...
  • Ufordøyelig binder i fôr til laks - evaluering av velferd og tilvekst 

    Tronsen, Kristina Finden (Master thesis; Mastergradsoppgave, 2021-05-18)
    Med stadig økning i produksjon av oppdrettslaks og et relativt lavt antall tilgjengelig vannkilder til smoltproduksjon, ser man økt bygging av RAS-anlegg. Ved rensing av produksjonsvannet er første vannbehandlingstrinn mekanisk filtrering etterfulgt av biofiltrering, rensesystemets flaskehals. Biofilteret renser vannet for nitrogenholdige molekyler (TAN), som er giftig for laks, og er sensitivt for ...
  • The distribution of Eubothrium crassum (Cestoda: Pseudophyllidea) in brown trout, Salmo trutta, in allopatric and sympatric populations 

    Hofstad Lian, Anne (Master thesis; Mastergradsoppgave, 2021-05-17)
    Sticklebacks in particular have been suspected to have a role in transmission of E. crassum to its final host, the brown trout. In this study, prevalence and mean abundance of E. crassum in trout have been examined in allopatric and sympatric populations to address the suspected role of sticklebacks in the life cycle of E. crassum. 1106 trout from 22 lakes in the northern parts of Norway were ...
  • Ordningen med utviklingstillatelser Et bidrag til innovasjon i norsk oppdrettsnæring 

    Bekkeli, Karl Erik (Master thesis; Mastergradsoppgave, 2017-05-15)
    Norsk oppdrettsnæring har opplevd eventyrlig vekst. I løpet av en et halvt århundre har næringen utviklet seg fra omtrent ingenting til å bli blant våre viktigste og største eksportnæringer. Veksten har i stor grad skyltes oppdretternes kontinuerlige produktivitetsforbedringer, basert på forbedring av utstyr, avl og utvikling av vaksiner og fôr. Skal eventyret få fortsette er næringen avhengig av å ...
  • Antimikrobielle forbindelser i kongsnegl (Buccinum undatum) og neptunsnegl (Neptunea despecta) 

    Martinsen, Lindsey Leigh Beecher (Master thesis; Mastergradsoppgave, 2017-05-15)
    Det økende antall patogene bakteriestammer som utvikler resistens mot dagens kommersielle antibiotika er en av de største truslene mot den globale helsen i vår tid. Infeksjonssykdommer som tidligere kunne behandles med antibiotika har nå nesten blitt umulige å behandle, det er derfor et umiddelbart behov for nye typer antibiotika med nye virkningsmekanismer enn det som allerede eksisterer på markedet. ...
  • Securidine analogues from the marine bryozoan Securiflustra securifrons. 

    Salamonsen, Daniel (Master thesis; Mastergradsoppgave, 2021-05-12)
    Har isolert analoger av Securidine A, samt andre forbindelser fra arten Securiflustra securifrons, utført strukturoppklaring og testet for bioaktivitet.

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