Viser treff 481-500 av 5228

    • Beyond regulatory compliance – Seafood traceability benefits and success cases 

      Borit, Melania; Olsen, Petter (Research report; Forskningsrapport, 2020)
      Since the mid-1990s, traceability has become a popular concept in industrial logistics, regardless of the production regime and type of product. Implementing traceability systems across the food supply chain is seen as crucial for increasing food quality and safety, for optimizing production or for documenting sustainability. However, implementation of traceability systems in the seafood sector seems ...
    • Potential effects of petroleum pollution and increasing water temperature on life-history traits in polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth; Frantzen, Marianne; Geoffroy, Maxime; Meador, James P.; Nahrgang, Jasmine (Conference object; Konferansebidrag, 2017)
    • Co-management (samforvaltning) og andre samfunnsvitenskapelige perspektiver inn mot reguleringen av fiskeri og akvakultur 

      Johnsen, Jahn Petter (Conference object; Konferansebidrag, 2018)
      Presentasjon av institusjonelle utviklingstrekk i fiskeri- og havbruksforvaltning. Samspill mellom regulering, næringstilpasning og teknologi.
    • Implementation of integrated ecosystem assessments in the International Council for the Exploration of the Sea - Conceptualizations, practice, and progress 

      Clay, Patricia M; Ferretti, Johanna; Bailey, Jennifer L.; Goti, Leyre; Dankel, Dorothy Jane; Santurtun, Marina; Fuller, Jessica Leyla; Linke, Sebastian; Schmidt, Jörn; Nielsen, Kåre Nolde; Goldsborough, David; Groeneveld, Rolf; Fraga, Ana Rita; Elegbede, Isa; Röckmann, Christine (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-23)
      With increasing activities of multiple sectors in marine spaces, management of marine social–ecological systems requires more holistic approaches. Adopting such an approach, however, presents difficult institutional and disciplinary challenges. Here, we use the International Council for the Exploration of the Sea (ICES) as a case study on the implementation of ecosystem-based management (EBM) and ...
    • Farvel til fiskeren? Om frafall og rekruttering til fiske 

      Johnsen, Jahn Petter; Vik, Jostein; Sønvisen, Signe Annie (Chapter; Bokkapittel, 2013)
      Parallelt med tiltagende lukking av de store fiskeriene i Norge, har det skjedd en nedgang i antall fiskere, samtidig som også færre rekrutteres til fiske. Spørsmålet her er om fiskere har blitt skjøvet ut av yrket eller om de har sluttet av andre grunner? En undersøkelse blant fiskere som har sluttet, tyder på at utviklinga i andre næringer og i samfunnet har hatt innvirkning på sysselsettingssystemet ...
    • Hvordan forholder styret seg til aksjelovens forsvarlighetskrav under restruktureringer i norske offshorerederi? 

      Tobiassen, Niklas (Master thesis; Mastergradsoppgave, 2018-09-03)
      Fallet i oljeprisen våren 2014 markerte starten på det som skulle vise seg å bli en svært krevende periode for oljeservicenæringen. Oljekrisen medførte betydelige tap for norske offshorerederi og som et resultat av dette har mange selskap sett seg nødt til å gjennomføre restruktureringer for å styrke kapitalstrukturen og begrense sin tap. Aksjelovens bestemmelse i § 3-4 om forsvarlig egenkapital ...
    • Earlier sea-ice melt extends the oligotrophic summer period in the Barents Sea with low algal biomass and associated low vertical flux 

      Kohlbach, Doreen; Goraguer, Lucie; Bodur, Yasemin V.; Müller, Oliver; Amargant Arumí, Martí; Blix, Katalin; Bratbak, Gunnar; Chierici, Melissa; Dabrowska, Anna Maria; Dietrich, Ulrike; Edvardsen, Bente; Garcia, Laura; Gradinger, Rolf Rudolf; Hop, Haakon; Jones, Elizabeth Marie; Øyvind, Lundesgaard; Olsen, Lasse Mork; Reigstad, Marit; Saubrekka, Karoline; Tatarek, Agnieszka; Wiktor, Josef Maria; Wold, Anette; Assmy, Philipp (Journal article; Tidsskriftartikkel, 2023-03-27)
      The decrease in Arctic sea-ice extent and thickness as a result of global warming will impact the timing, duration, magnitude and composition of phytoplankton production with cascading effects on Arctic marine food-webs and biogeochemical cycles. Here, we elucidate the environmental drivers shaping the composition, abundance, biomass, trophic state and vertical flux of protists (unicellular eukaryotes), ...
    • Seafloor warm water temperature anomalies impact benthic macrofauna communities of a high-Arctic cold-water fjord 

      Jorda Molina, Eric; Renaud, Paul Eric; Silberberger, Marc J.; Sen, Arunima; Bluhm, Bodil; Carroll, Michael Leslie; Ambrose, William; Cottier, Finlo Robert; Reiss, Henning (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-05)
      Amid the alarming atmospheric and oceanic warming rates taking place in the Arctic, western fjords around the Svalbard archipelago are experiencing an increased frequency of warm water intrusions in recent decades, causing ecological shifts in their ecosystems. However, hardly anything is known about their potential impacts on the until recently considered stable and colder northern fjords. We ...
    • Suicide as globalisation's Black Swan: global evidence 

      SARI, Emre; Er, S. Tolga; Demir, Ender (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-28)
      Objectives - This empirical study investigated the relationship between globalisation and suicide rates. We examined whether there is a beneficial or harmful relationship between economic, political and social globalisation and the suicide rate. We also estimated whether this relationship differs in high-, middle- and low-income countries.<p> <p>Study design - Using panel data from 190 countries ...
    • Effects of nuclease-treated fermentation product of Lactobacillus rhamnosus GCC-3 on growth, hepatic health and gut microbiota of zebrafish (Danio rerio) fed a high-fat diet 

      Xie, Mingxu; Li, Ming; Hao, Qiang; Olsen, Rolf-Erik; Ringø, Einar; Yang, Yalin; Zhang, Zhen; Ran, Chao; Zhou, Zhigang (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-12)
      Probiotics are reported to improve the nutrition, immunity, and health of fish. Nuclease can hydrolyze nucleic acids of probiotics to produce nucleotides. The present study investigated the effect of stabilized fermentation product of nuclease-treated <i>Lactobacillus rhamnosus</i> GCC-3 (GCC-3 NT) on growth, non-specific immunity, liver health, and gut microbiota of zebrafish (<i>Danio rerio</i>). ...
    • Production of sterile Atlantic salmon by germ cell ablation with antisense oligonucleotides 

      Tveiten, Helge; Andersen, Øivind; Swain, Jaya Kumari; Johnsen, Hanne; Mommens, Maren; Slanchev, Krasimir (Journal article; Tidsskriftartikkel, 2023)
      Cultivation of sterile-only fish in aquaculture offers multiple benefits of environmental, economical, and social value. A reliable method for efficient sterilization without affecting fish welfare and performance traits would have significant impact on fish production practices. Here, we demonstrate sterilization of Atlantic salmon embryos by targeting the dead end gene with antisense oligonucleotides. ...
    • The capability of square-meshes and fixed-shape meshes to control codend size selection 

      Bak-Jensen, Zita; Santos, Juan; Melli, Valentina; Stepputtis, Daniel; Feekings, Jordan P.; Herrmann, Bent (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-11)
      Trawl codends are commonly made of diamond-mesh netting. However, diamond-mesh codends vary in mesh geometry along its length and during fishing due to catch build up. This introduces variability in the size selection process. This phenomenon compromises the rationality of regulating exploitation patterns in trawl fisheries through adjustments in codend mesh size. One technical solution often ...
    • Sustained year-round oceanographic measurements from Rothera Research Station, Antarctica, 1997–2017 

      Venables, Hugh; meredith, mike; Hendry, Katharine R; hoopen, Petra Ten; Peat, Helen J; Chapman, Alice; Beaumont, Jennifer; rayner, piper; Miller, Andrew; Mann, Paul; Rossetti, Helen; Massey, Alison; SOUSTER, TERRI; Reeves, Simon; Fenton, Mairi; Heiser, Sabrina; Pountney, Samuel M.; Reed, Sarah; waring, zoe; clark, Marlon; bolton, emma; Mathews, Ryan; London, Hollie; Clement, Alice; stuart, emma; aurelia, reichardt; brandon, mark; Leng, Melanie; arrowsmith, carol; annett, amber; Henley, Sian F; Clarke, Andrew (Journal article; Tidsskriftartikkel, 2023-05-10)
      Oceanographic changes adjacent to Antarctica have global climatic and ecological impacts. However, this is the most challenging place in the world to obtain marine data due to its remoteness and inhospitable nature, especially in winter. Here, we present more than 2000 Conductivity-Temperature-Depth (CTD) profiles and associated water sample data collected with (almost uniquely) full year-round ...
    • Time-varying market efficiency of safe-haven assets 

      Okoroafor, Ugochi Chibuzor; Leirvik, Thomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-29)
      This study investigates the hedge and safe-haven possibilities with bitcoin, gold and crude oil in different equity markets in the presence of time-varying market inefficiency. Our results indicate that periods of market inefficiency for the Bitcoin, gold and crude oil price positively influence their function as a hedge asset for the equity markets of Japan, China, the US, Europe and emerging ...
    • Fifteen research needs for understanding climate change impacts on ecosystems and society in the Norwegian High North 

      Kebir, Zina Asnah; Chambers, Catherine; Frainer, André; Hausner, Vera Helene; Lennert, Ann Eileen; Lento, Jennifer; Poste, Amanda; Ravolainen, Virve; Renner, Angelika; Thomas, David N.; Waylen, Kerry (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-07)
      There is an urgent need to understand and address the risks associated with a warming climate for ecosystems and societies in the Arctic and sub-Arctic regions. There are major gaps in our understanding of the complex effects of climate change—including extreme events, cascading impacts across ecosystems, and the underlying socioecological dynamics and feedbacks—all of which need collaborative efforts ...
    • Outer Membrane Integrity-Dependent Fluorescence of the Japanese Eel UnaG Protein in Live Escherichia coli Cells 

      Richard, Celine Sarah Marine; Dey, Hymonti; Øyen, Frode Jacobsen; Maqsood, Munazza; Blencke, Hans-Matti (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-07)
      Reporter genes are important tools in many biological disciplines. The discovery of novel reporter genes is relatively rare. However, known reporter genes are constantly applied to novel applications. This study reports the performance of the bilirubin-dependent fluorescent protein UnaG from the Japanese eel Anguilla japonicas in live Escherichia coli cells in response to the disruption of outer ...
    • Pathogen Exposure in White Whales (Delphinapterus leucas) in Svalbard, Norway 

      Nymo, Ingebjørg Helena; Siebert, Ursula; Baechlein, Christine; Postel, Alexander; Breines, Eva Marie; Lydersen, Christian; Kovacs, Kit M.; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-29)
      The Svalbard white whale (Delphinapterus leucas) population is one of the smallest in the world, making it particularly vulnerable to challenges such as climate change and pathogens. In this study, serum samples from live captured (2001-2016) white whales from this region were investigated for influenza A virus (IAV) antibodies (Abs) (n = 27) and RNA (n = 25); morbillivirus (MV) Abs (n = 3) and RNA ...
    • Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery 

      Brinkhof, Ilmar; Herrmann, Bent; Larsen, Roger B.; Brinkhof, Jesse; Grimaldo, Eduardo; Vollstad, Jørgen (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-15)
      Gillnets are among the most common fishing gears worldwide. They are often made of thin twine, which is prone to wear and tear, limiting the lifespan of the gillnet. This increases gillnet turnover, and consequently increased risk of gear discarding, gear loss, ghost fishing and marine pollution. This might be mitigated by increasing twine thickness, and thereby breaking strength. However, the ...
    • Marine Capture Fisheries from Western Indian Ocean: An Excellent Source of Proteins and Essential Amino Acids 

      Jensen, Ida-Johanne; Bodin, Nathalie; Govinden, Rodney; Elvevoll, Edel O. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-27)
      The Republic of Seychelles is located in Western-Central Indian Ocean, and marine capture fisheries play a key role in the country’s economic and social life in terms of food security, employment, and cultural identity. The Seychellois are among the highest per capita fish-consuming people in the world, with a high reliance on fish for protein. However, the diet is in transition, moving towards a ...
    • The effect of temperature and dietary energy content on female maturation and egg nutritional content in Atlantic salmon 

      Maamela, Katja S.; Åsheim, Eirik Ryvoll; Debes, Paul V.; House, Andrew H.; Erkinaro, Jaakko; Liljeström, Petra; Primmer, Craig R.; Mobley, Kenyon (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-17)
      The environment experienced by a female influences reproductive traits in many species of fish. Environmental factors such as temperature and diet are not only important mediators of female maturation and reproduction but also of egg traits and offspring fitness through maternal provisioning. In this study, we use 3-year-old tank-reared Atlantic salmon from two Finnish populations to investigate the ...