Now showing items 718-737 of 1576

    • Hepatic melanomacrophage centers in the arctic cultured fish Cyclopterus lumpus are not indicative of its health state 

      Passantino, Letizia; Corriero, Aldo; Pousis, Christo; Zupa, Rosa; Perillo, Antonella; Superio, Joshua Lustracion; Swain, Jaya Kumari; Foss, Atle; Galindo-Villegas, Jorge; Ventriglia, Gianluca (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-26)
      The lumpfish, Cyclopterus lumpus, holds significant promise as a candidate for large-scale aquaculture production, particularly in its role as a cleaner fish used to manage sea lice infestations in Atlantic salmon Salmo salar farming. Melanomacrophage centers (MMCs) represent polymorphic structures present in the hemolymphopoietic organs of various vertebrates, serving as a widely applicable ...
    • Heterochronic maturation of anatomical plugs for protecting the airway in rorqual whales (Balaenopteridae) 

      Lauridsen, Henrik; Bie Thøstesen, Charlotte; Pedersen, Christina Carøe Ejlskov; Ringgaard, Steffen; Elstrup, Mette; Møller, Peter Daniel Rask; Johansson, Daniel Klingberg; Alstrup, Aage Kristian Olsen (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-14)
      Recently, a unique mechanism for protecting the airway during lunge feeding was discovered in rorqual whales (Balaenopteridae). This mechanism is based on an oral plug structure in the soft palate with similarities in musculo-fatty composition to the nasal plugs protecting the respiratory tract of rorquals from water entry and barotrauma during diving. As a follow-up, we present here a ...
    • A High-Affinity Peptide Ligand Targeting Syntenin Inhibits Glioblastoma 

      Haugaard-Kedström, Linda M.; Clemmensen, Louise S.; Sereikaite, Vita; Jin, Zeyu; Fernandes, Eduardo F. A.; Wind, Bianca; Abalde-Gil, Flor; Daberger, Jan; Vistrup-Parry, Maria; Aguilar-Morante, Diana; Leblanc, Raphael; Egea-Jimenez, Antonio L.; Albrigtsen, Marte; Jensen, Kamilla E.; Jensen, Thomas M. T.; Ivarsson, Ylva; Vincentelli, Renaud; Hamerlik, Petra; Andersen, Jeanette Hammer; Zimmermann, Pascale; Lee, Weonate; Strømgaard, Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-27)
      Despite the recent advances in cancer therapeutics, highly aggressive cancer forms, such as glioblastoma (GBM), still have very low survival rates. The intracellular scaffold protein syntenin, comprising two postsynaptic density protein-95/discs-large/zona occludens-1 (PDZ) domains, has emerged as a novel therapeutic target in highly malignant phenotypes including GBM. Here, we report the development ...
    • Histological and bacteriological changes in intestine of beluga (Huso huso) following ex vivo exposure to bacterial strains 

      Salma, Wahida; Zhou, Zhigang; Wang, Wenwan; Askarian, Fatemeh; Kousha, Armin; Ebrahimi, Maryam Tajabadi; Myklebust, Reidar; Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      In the present study the intestinal sac method (ex vivo) was used to evaluate the interactions between lactic acid bacteria and staphylococci in the gastrointestinal (GI) tract of beluga (Huso huso). The distal intestine (DI) of beluga was exposed ex vivo to Staphylococcus aureus, Leuconostoc mesenteroides and Lactobacillus plantarum. Histological changes following bacterial exposure were assessed ...
    • A holistic and comprensive data approach validates the distribution of the critically endangered flapper skate (Dipturus intermedius) 

      Garbett, Amy; L. Loca, Sophie; Barreau, Thomas; Biscoito, Manuel; Bradley, Caroline; Breen, Joe; Clarke, Maurice; Ellis, Jim R.; Griffiths, Andrew Mark; Hannon, Gary; Jakobsdottir, Klara; Junge, Claudia; Lynghammar, Arve; McCloskey, Matthew; Minos, George; D. Phillips, Natasha; A. Prodöhl, Paolo; Roche, William; Iglesias, Samuel P.; Thorburn, James; C. Collins, Patrick (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-29)
      Morphological similarities between skates of the genus Dipturus in the north-eastern Atlantic and Mediterranean have resulted in longstanding confusion, misidentification and misreporting. Current evidence indicates that the common skate is best explained two species, the flapper skate (D. intermedius) and the common blue skate (D. batis). However, some management and conservation initiatives developed ...
    • Holistic monitoring of freshwater and terrestrial vertebrates by camera trapping and environmental DNA 

      Holm, Anne Marie Rubæk; Knudsen, Steen Wilhelm; Månsson, Malene; Pedersen, Ditte Elmgreen; Nordfoss, Pauli Holm; Johansson, Daniel Klingberg; Gramsbergen, Marthe; Havmøller, Rasmus Worsøe; Sigsgaard, Eva Egelyng; Thomsen, Philip Francis; Olsen, Morten Tange; Møller, Peter Daniel Rask (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-20)
      The anthropogenic impact on the world's ecosystems is severe and the need for non-invasive, cost-effective tools for monitoring and understanding those impacts are therefore urgent. Here, we combine two such methods in a comprehensive multi-year study; camera trapping (CT) and analysis of environmental DNA (eDNA), in river marginal zones of a temperate, wetland Nature Park in Denmark. CT was ...
    • Homing of Antigen-Presenting Cells in Head Kidney and Spleen – Salmon Head Kidney Hosts Diverse APC Types 

      Iliev, Dimitri Borisov; Thim, Hanna Leena; Lagos, Leidy; Olsen, randi; Jørgensen, Jorunn B (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Lymph nodes and spleen are major organs where mammalian antigen-presenting cells (APCs) initiate and orchestrate Ag-specific immune responses. Unlike mammals, teleosts lack lymph nodes and an interesting question is whether alternative organs may serve as sites for antigen presentation in teleosts. In the current study, fluorescent ovalbumin (Ova) and CpG oligonucleotides (ODNs) injected intra-abdominally ...
    • Host-associated probiotics: a key factor in sustainable aquaculture 

      Hien, van Doan; Seyed H, Hoseinifar; Ringø, Einar; Maria A, Esteban; Maryam, Dadar; Mohamed, Dawood; C, Faggio (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-31)
      The aquaculture industry has dramatically developed during the last two decades. However, this development has, in some cases, resulted in environmental degradation, emergence of diseases, and low productivity. The need for improving disease resistance, growth performance, feed efficiency, and safe aquatic production for human consumption has stimulated development and applications of probiotics in ...
    • How does twine thickness and mesh size affect catch efficiency and ways of capture in the Northeast Arctic cod (Gadus morhua) gillnet fishery? 

      Brinkhof, Ilmar (Master thesis; Mastergradsoppgave, 2022-05-31)
      The aim of this study is to establish a general pattern for how round-fish get caught in gillnets. Understanding these patterns might further help establishing which gillnet parameters are important to consider when developing new biodegradable materials for gillnets. Developing biodegradable materials is important to reduce impacts from lost, abandoned, and discarded gillnets made of non-biodegradable ...
    • How many fish need to be measured to effectively evaluate trawl selectivity? 

      Herrmann, Bent; Sistiaga, Manu Berrondo; Santos, Juan; Sala, Antonello (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      The aim of this study was to provide practitioners working with trawl selectivity with general and easily understandable guidelines regarding the fish sampling effort necessary during sea trials. In particular, we focused on how many fish would need to be caught and length measured in a trawl haul in order to assess the selectivity parameters of the trawl at a designated uncertainty level. We also ...
    • How to conduct more systematic reviews of agent-based models and foster theory development - Taking stock and looking ahead 

      Achter, Sebastian; Borit, Melania; Cottineau, Clémentine; Polhill, J. Gareth; Radchuk, Viktoriia; Meyer, Matthias (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-15)
      Agent-based models (ABMs) are increasingly utilized in ecology and related fields, yet concerns persist regarding the lack of consideration for lessons learned from previous models. This study explores the potential of systematically conducted ABM reviews to contribute to cumulative science and theory development by synthesizing individual ABM findings more effectively. We are conducting a meta-review ...
    • How to create value from fisheries bycatch? A case study of the sea cucumber harvested in Galicia 

      Fernández Mato, Diego (Master thesis; Mastergradsoppgave, 2016-06-15)
      One of the main aims in fisheries management is to obtain sustainable fisheries and reduce the waste and losses. Many fish species lives together in many fishing grounds. Fisheries of target species will thus include other species as bycatch. This thesis analyses potential market oriented solutions to solve the problem through by processing products valuable in the market for those species until now ...
    • How vulnerable is the European seafood production to climate warming? 

      Blanchet, Marie-Anne; Primicerio, Raul; Smalås, Aslak; Arias-Hansen, Juliana; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-16)
      The main challenge for the European seafood industry is to ensure sustainable production volume while adapting to climate warming. Marine fisheries mainly target 41 species which account for 80% of the seafood production in Europe. The remaining 20% comes from marine and freshwater aquaculture, which harvest mainly 5 and 11 species, respectively. European seafood production volume (2004–2014) recorded ...
    • How well is IUU fihsing enforced by the South African authorities? : an analysis of SA practices in relation to foreign fishing vessels visiting Cape Town and Durban ports from years 2005-2009. 

      Wellem, Xolela (Master thesis; Mastergradsoppgave, 2009-05-29)
      Foreign fishing vessels are landing catches in South African ports, however, there are number of issues, procedures and persons involved in the process to facilitate those vessels into port. So this study concerns understanding and law implications as diversified from the actual practicing of the law. The legal analysis boils down to textual analysis to see whether national achievements are more or ...
    • HPI-axis and heat shock protein (HSP) gene transcripts, and their responsiveness to stress in Atlantic salmon (Salmo salar L.) embryos and larvae 

      Andersen, Renate (Master thesis; Mastergradsoppgave, 2015-11-25)
      Exposure to stress may have a profound impact on the physiology and health of an individual later in life. During a production cycle of Atlantic salmon eggs, the eggs are subjected to different kind of handling, e.g. shocking and transport. Handling of this extent would have elicited stress responses in adult fish. Stress responses can broadly be divided into primary, secondary and tertiary response. ...
    • Humorale immunresponser i bukhule og systemiske organer hos Atlantisk laks (Salmo salar L.) – sammenligning av levende og inaktivert salmonid alphavirus 3 administrert i bukhulen 

      Abrahamsen, Mathias (Master thesis; Mastergradsoppgave, 2019-05-15)
      Pankreassykdom (PD) er en sykdom som forårsakes av salmonid alphavirus (SAV) og anses som en av de mest utbredte virussykdommene i dagens oppdrettsnæring. I tillegg til at sykdommen fører til store tap for næringa, utgjør sykdommen også et stort problem sett fra et fiskevelferds-perspektiv. Siden det ikke finnes behandling mot sykdommen ligger fokuset på forebyggende tiltak. Det er utviklet flere ...
    • Humpback Whale (Megaptera novaeangliae) Song on a Subarctic Feeding Ground 

      Martin, Saskia C.; Aniceto, Ana Sofia; Ahonen, Heidi; Pedersen, Geir; Lindstrøm, Ulf (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-24)
      Male humpback whales (Megaptera novaeangliae) are known to produce long complex sequences of structured vocalizations called song. Singing behavior has traditionally been associated with low latitude breeding grounds but is increasingly reported outside these areas. This study provides the first report of humpback whale songs in the subarctic waters of Northern Norway using a long-term bottom-moored ...
    • Hundreds of species observations and four ascomycetes new to Norway during a mycology field course 

      Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018)
      During a mycology field course in Drøbak 29th August – 2nd September 2011 several interesting and some new taxa to Norway were found. Species not previously recorded in Norway include <i>Tatraea dumbirensis, Corollospora maritima, Nectriopsis candicans</i> and <i>Ombrophila juniperinella</i>. A list of 413 taxa, including records of three threatened species, is given and the ecology and distribution ...
    • Hurtig metode for å estimere buksprenging i pelagisk fisk ombord 

      Slizyte, Rasa; Mozuraityte, Revilija; Martinez, Iciar (Research report; Forskningsrapport, 2013)
      Buksprenging er en kvalitetsforringende prosess hvor bukområdet hos fisken brytes ned post mortem. Denne rapporten oppsummerer arbeidet med utviklingen av en anvendelig hurtigtest for å estimere enzymlekkasje som forårsaker buksprenging i pelagiske fiskearter. Måleutstyret er kommersielt tilgjengelig og krever lite opplæring før bruk. Metoden er brukervennlig og gir en objektiv vurdering av ...
    • Hva begrenser tilgangen på sjøareal til havbruksnæringen? 

      Hersoug, Bjørn; Andreassen, Otto; Johnsen, Jahn Petter; Robertsen, Roy (Research report; Forskningsrapport, 2014-08-13)
      Prosjektet har hovedfokus på havbruksnæringens lokalitetstilgang sett i lys av økt arealbehov ut fra havbruknæringens ønske om vekst. Denne veksten er ikke uproblematisk, for bruk av kystsonen utfordres av mange interesser og brukerere. De siste årene har bærekraftig utvikling av næringen hatt sterkt fokus, hvor klare miljøutfordringer relatert til påvirkning av villaks, luseproblematikk, forurensing, ...