Department of Biological Sciences: Nye registreringer

Viser treff 41-60 av 2227

    • Phaeoviruses Present in Cultured and Natural Kelp Species, Saccharina latissima and Laminaria hyperborea (Phaeophyceae, Laminariales), in Norway 

      Ruiz Martinez, Eliana; Mckeown, Dean A.; Schroeder, Decland C.; Thuestad, Gunnar; Sjøtun, Inga Kjersti; Sandaa, Ruth-Anne; Larsen, Aud; Hoell, Ingunn Alne (Journal article; Peer reviewed, 2023)
      Phaeoviruses (Phycodnaviridae) are large icosahedral viruses in the phylum Nucleocytoviricota with dsDNA genomes ranging from 160 to 560 kb, infecting multicellular brown algae (Phaeophyceae). The phaeoviral host range is ...

    • Evaluation of photodegradable chitin synthetase inhibitors for the treatment of salmon lice (Lepeophtheirus salmonis) 

      Sydnes, Magne Olav; Eikemo, Vebjørn; Espedal, Per Gunnar; Sydnes, Leiv K.; Nilsen, Frank (Journal article; Peer reviewed, 2023)
      Some photolabile ethanolamine analogues of the chitin synthetase inhibitors diflubenzuron, teflubenzuron, and lufenuron were tested for activity as anti-lice compounds towards salmon lice (Lepeophtheirus salmonis). Two ...

    • Integrative omics-analysis of lipid metabolism regulation by peroxisome proliferator-activated receptor a and b agonists in male Atlantic cod 

      Eide, Marta; Goksøyr, Anders; Yadetie, Fekadu; Gilabert, Alejandra; Bartosova, Zdenka; Frøysa, Håvard Guldbrandsen; Fallahi, Shirin; Zhang, Xiaokang; Blaser, Nello; Jonassen, Inge; Bruheim, Per; Alendal, Guttorm; Brun, Morten; Porte, Cinta; Karlsen, Odd André (Journal article; Peer reviewed, 2023-03-22)
      Lipid metabolism is essential in maintaining energy homeostasis in multicellular organisms. In vertebrates, the peroxisome proliferator-activated receptors (PPARs, NR1C) regulate the expression of many genes involved in ...

    • Model-informed classification of broadband acoustic backscatter from zooplankton in an in situ mesocosm 

      Dunn, Muriel Barbara; McGowan-Yallop, Chelsey; Pedersen, Geir; Falk-Petersen, Stig; Daase, Malin Hildegard Elisabeth; Last, Kim; Langbehn, Tom; Fielding, Sophie; Brierley, Andrew S.; Cottier, Finlo Robert; Basedow, Sünnje Linnéa; Camus, Lionel; Geoffroy, Maxime (Journal article; Peer reviewed, 2023)
      Classification of zooplankton to species with broadband echosounder data could increase the taxonomic resolution of acoustic surveys and reduce the dependence on net and trawl samples for ‘ground truthing’. Supervised ...

    • Influences of sea level changes and volcanic eruptions on Holocene vegetation in Tonga 

      Strandberg, Nichola A.; Edwards, Mary E.; Ellison, Joanna C.; Steinbauer, Manuel; Walentowitz, Anna; Fall, Patricia L.; Sear, David; Langdon, Peter G.; Cronin, Shane; Castilla-Beltrán, Alvaro; Croudace, Ian W.; Prebble, Matiu; Gosling, William D.; Nogué, Sandra (Journal article; Peer reviewed, 2023)
      Here, we investigate Mid- to Late-Holocene vegetation changes in low-lying coastal areas in Tonga and how changing sea levels and recurrent volcanic eruptions have influenced vegetation dynamics on four islands of the ...

    • Cleaner Fish Do Not Impact the Pigmentation of Salmon Lice (Lepeophtheirus salmonis) in Commercial Aquaculture Cages 

      Imsland, Albert; Berg, Jon Petter; Nola, Velimir; Geitung, Lena; Oldham, Tina Marie Wier (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 ...

    • Multiple Aeromonas strains isolated from Atlantic salmon (Salmo salar) displaying red skin disease signs in Scandinavian rivers 

      Lagadec, Erwan; Mjølnerød, Even Bysveen; Jensen, Øyvind Marius; Plarre, Heidrun; Nylund, Are (Journal article; Peer reviewed, 2023)
      Since 2014, Atlantic salmon (Salmo salar L.) displaying clinical signs of red skin disease (RSD), including haemorrhagic and ulcerative skin lesions, have been repeatedly observed in Swedish rivers. Although the disease ...

    • Aquaculture-driven evolution of the salmon louse mtDNA genome 

      Rutle, Karoline Hasti; Skern-Mauritzen, Rasmus; Nilsen, Frank; Mateos-Rivera, Alejandro; Sørvik, Anne Grete Eide; Jansson, Eeva; Quintela, Maria; Besnier, Francois; Ayllon, Fernando; Fjørtoft, Helene Børretzen; Glover, Kevin Alan (Journal article; Peer reviewed, 2023)
      Resistance toward the antiparasitic pyrethroid, deltamethrin, is reported in the Atlantic salmon louse (Lepeophtheirus salmonis salmonis), a persistent ectoparasite of farmed and wild salmonids. The resistance mechanism ...

    • The Distribution of IgT mRNA+ Cells in the Gut of the Atlantic Salmon (Salmo salar L.) 

      Castro, Pedro Luis; Barac, Fran; Hansen, Tom Johnny; Fjelldal, Per Gunnar; Hordvik, Ivar; Bjørgen, Håvard; Koppang, Erling Olaf (Journal article; Peer reviewed, 2023)
      The newly discovered IgT+ B cell is thought to play a dominant role in mucosal immunity, but limited studies have examined its distribution in fish species, hindering our understanding of its function. This study investigated ...

    • Growth Performance, Nutrient Digestibility, and Retention in Atlantic Salmon, Salmo salar L., Fed Diets with Fermented Sugar Kelp, Saccharina latissima 

      Sartipiyarahmadi, Sahar; Philip, Antony Jesu Prabhu; Sveier, Harald; Steinsund, Silje; Lock, Erik Jan Robert; Madaro, Angelico; Hansen, Tom Johnny; Wiech, Martin; Strand, Øivind; Jakobsen, Jan Vidar; Van Der Heide, Marleen E.; Nørgaard, Jan Værum; Remø, Sofie C. (Journal article; Peer reviewed, 2023)
      Using low trophic marine resources such as sugar kelp (Saccharina latissimi) is of great interest to increase the circular food production in the ocean. Sugar kelp does, however, contain high levels of carbohydrates and ...

    • Digestibility and functionality of black soldier fly larvae meal in Atlantic salmon feeds 

      Radhakrishnan, Gopika (Doctoral thesis, 2024-02-09)
      Fordøyeligheten og funksjonaliteten til delvis avfettet mel av svarte soldatfluelarver (BSFL) er studert i fôret til atlantisk laks (Salmo salar). Insektmel er et lovende alternativ til konvensjonelle fôringredienser på ...

    • Diurnal temperature range as a key predictor of plants’ elevation ranges globally 

      Gallou, Arnaud; Jump, Alistair S.; Lynn, Joshua; Field, Richard; Irl, Severin D. H.; Steinbauer, Manuel; Beierkuhnlein, Carl; Chen, Jan-Chang; Chou, Chang-Hung; Hemp, Andreas; Kidane, Yohannes; König, Christian; Kreft, Holger; Naqinezhad, Alireza; Nowak, Arkadiusz; Nuppenau, Jan-Niklas; Trigas, Panayiotis; Price, Jonathan P.; Roland, Carl A.; Schweiger, Andreas H.; Weigelt, Patrick; Flantua, Suzette; Grytnes, John Arvid (Journal article; Peer reviewed, 2023)
      A prominent hypothesis in ecology is that larger species ranges are found in more variable climates because species develop broader environmental tolerances, predicting a positive range size-temperature variability ...

    • Model of mesopelagic fish predation on eggs and larvae shows benefits of tuna spawning under full moon 

      Ottmann, Daniel; Langbehn, Tom; Reglero, Patricia; Alvarez-Berastegui, Diego; Fiksen, Øyvind (Journal article; Peer reviewed, 2023)
      Most mesopelagic fish are small planktivores that migrate up at nightfall to feed in the safety of darkness and descend to depth at dawn to escape visual predators. However, the trophic roles can reverse since mesopelagic ...

    • Evolutionary responses of Atlantic cod (Gadus morhua) to concurrent fisheries and climate stressors 

      Jessen, Henrik Høiberg (Doctoral thesis, 2024-02-08)
      Evolutionære ændringer i fisk er efterhånden en anderkendt sandhed, især på grund af forskning i fiskeri-induceret evolution siden 1970'erne. Vi ser især disse ændringer påvirke individuelle livshistorier, resulterende i ...

    • Flower morphology variation in five species of Penstemon (Plantaginaceae) displaying Hymenoptera pollination syndrome 

      Pena, Rosa Aurora Rodriguez; Wolfe, Andrea D. (Journal article; Peer reviewed, 2023)
      Background: Geographic distance promotes phenotypic variation by facilitating environmental distance, limiting gene flow, and exposing plants to different pollen vectors. Therefore, understanding how plant morphology changes ...

    • Identification and characterization of two salmon louse heme peroxidases and their potential as vaccine antigens 

      Gislefoss, Elisabeth; Gamil, Amr Ahmed Abdelrahim; Øvergård, Aina-Cathrine; Evensen, Øystein (Journal article; Peer reviewed, 2023)
      Salmon louse, Lepeophtheirus salmonis, represents major challenge for salmon farming. Current treatments impose welfare issues and are costly, whereas prophylactic measures are unavailable. Two salmon louse heme peroxidases ...

    • Transcriptome-wide analyses of early immune responses in lumpfish leukocytes upon stimulation with poly(I:C) 

      Sadashiva Rao, Shreesha; Lunde, Harald Sæbø; Dolan, David William Peter; Fond, Amanda Kästel Sandal; Petersen, Kjell; Haugland, Gyri Teien (Journal article; Peer reviewed, 2023)
      Background: Both bacterial and viral diseases are a major threat to farmed fish. As the antiviral immune mechanisms in lumpfish (Cyclopterus lumpus L.) are poorly understood, lumpfish leukocytes were stimulated with ...

    • Progressive Motor and Non-Motor Symptoms in Park7 Knockout Zebrafish 

      Chavali, Lakshmi Narasimha Murthy; Yddal, Ingeborg; Bifulco, Ersilia; Mannsåker, Simen; Røise, Dagne; Law, Jack Owen; Frøyset, Ann Kristin; Grellscheid, Sushma Nagaraja; Fladmark, Kari Espolin (Journal article; Peer reviewed, 2023)
      DJ-1 is a redox sensitive protein with a wide range of functions related to oxidative stress protection. Mutations in the park7 gene, which codes for DJ-1 are associated with early onset familial Parkinson’s disease and ...

    • An Arctic natural oil seep investigated from space to the seafloor 

      Panieri, Giuliana; Argentino, Claudio; Ramalho, Sofia P.; Vulcano, Francesca; Savini, Alessandra; Fallati, Luca; Brekke, Trond; Galimberti, Giulia; Riva, Federica; Balsa, João; Eilertsen, Mari Heggernes; Stokke, Runar; Steen, Ida Helene; Sahy, Diana; Kalenitchenko, Dimitri Stanislas Desire; Bünz, Stefan; Mattingsdal, Rune (Journal article; Peer reviewed, 2023)
      Due to climate change, decreasing ice cover and increasing industrial activities, Arctic marine ecosystems are expected to face higher levels of anthropogenic stress. To sustain healthy and productive ocean ecosystems, it ...

    • Evolutionary, comparative, and functional analyses of STATs and regulation of the JAK-STAT pathway in lumpfish upon bacterial and poly(I:C) exposure 

      Sadashiva Rao, Shreesha; Nelson, Patrick Alexander; Lunde, Harald Sæbø; Haugland, Gyri Teien (Journal article; Peer reviewed, 2023)
      Background: The Janus kinase/signal transducers and activators of transcription (JAK-STAT) system regulates several biological processes by affecting transcription of genes as a response to cytokines and growth factors. ...