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  • Isolation and Synthesis of Pulmonarins A and B, Acetylcholinesterase Inhibitors from the Colonial Ascidian Synoicum pulmonaria 

    Tadesse, Margey; Svenson, Johan; Sepcič, Kristina; Trembleau, Laurent; Engqvist, Stig Olov Magnus; Andersen, Jeanette Hammer; Jaspars, Marcel; Stensvåg, Klara; Haug, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-14)
    Pulmonarins A and B are two new dibrominated marine acetylcholinesterase inhibitors that were isolated and characterized from the sub-Arctic ascidian <i>Synoicum pulmonaria</i> collected off the Norwegian coast. The structures of natural pulmonarins A and B were tentatively elucidated by spectroscopic methods and later verified by comparison with synthetically prepared material. Both pulmonarins A ...
  • Assessing the added value of the recent declaration on unregulated fishing for sustainable governance of the central Arctic Ocean 

    Shephard, Grace Elizabeth; Dalen, Kari; Peldszus, Regina; Aparicio, Sara; Beumer, Larissa; Birkeland, Roger; Gkikas, Nikolaos; Kourantidou, Melina; Ktenas, Panagiotis; Linde, Peter Wilhelm; Marazzi, Francesco; Pincinato, Ruth Beatriz Mezzalira; Radianti, Jaziar; Schartmüller, Bernhard; Stübner, Eike Ingrid; Varnajot, Alix; Vullierme, Magali; Zhilina, Irina (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-21)
    The ‘Declaration concerning the prevention of unregulated high seas fishing in the central Arctic Ocean’ signed by the Arctic 5 nations, limits unregulated high seas fishing in the central part of the Arctic Ocean, and holds potential social, economic and political impacts for numerous stakeholders. In this paper, the four Interim Measures in the Declaration are discussed and what value these measures ...
  • Peptide from sea anemone metridium senile affects transient receptor potential ankyrin-repeat 1 (TRPA1) function and produces analgesic effect 

    Logashina, Yulia A.; Mosharova, Irina V.; Korolkova, Yulia V.; Shelukhina, Irina V; Dyachenko, Igor A.; Palikov, Victor A.; Palikova, Yulia A.; Murashev, Arkadii N.; Kozlov, Sergey A.; Stensvåg, Klara; Andreev, Yaroslav A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-11)
    The Transient Receptor Potential Ankyrin-repeat 1 (TRPA1) is an important player in pain and inflammatory pathways. It is a promising target for novel drugs development for treatment of a number of pathological states. A novel peptide producing significant potentiating effect (up to ~90%) on AITC- and diclofenac-induced currents of TRPA1 was isolated from the venom of sea anemone <i>Metridium ...
  • A framework for results-based management in fisheries 

    Nielsen, Kåre Nolde; Aschan, Michaela; Agnarsson, Sveinn; Ballesteros, Marta; Baudron, Alan; Borges, Maria de Fatima; Campos, Aida; Chapela, Rosa; Daníelsdóttir, Anna Kristin; Erzini, Karim; Gregersen, Olavur; Holm, Petter; Lucchetti, Alessandro; Margeirsson, Sveinn; Mendes, Hugo Vilela; Olsen, Petter; Rangel, Mafalda; Sala, Antonello; Santiago, José Luis; Sigurdardottir, Sigridur; Silva, Cristina; Sykes, Daryl; Vidarsson, Jonas Runar; Virgili, Massimo; Wise, Laura; Fernandes, Paul George (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)
    We present a framework for results-based management (RBM) of commercial fisheries. The core idea of RBM is to reduce micromanagement by delegating management responsibility to resource users. The RBM framework represents an industrial organization approach to co-management and comprises three defining processes, conducted by three independent “agents”: (i) an “authority” defines specific and ...
  • Genetic fingerprinting of salmon louse (Lepeophtheirus salmonis) populations in the North-East Atlantic using a random forest classication approach 

    Jacobs, Arne; De Noia, M; Præbel, Kim; Kanstad-Hanssen, Øyvind; Paterno, M; Jackson, D; McGinnity, P; Sturm, Armin; Elmer, K. R.; Llewellyn, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-19)
    Caligid sea lice represent a significant threat to salmonid aquaculture worldwide. Population genetic analyses have consistently shown minimal population genetic structure in North Atlantic <i>Lepeophtheirus salmonis</i>, frustrating efforts to track louse populations and improve targeted control measures. The aim of this study was to test the power of reduced representation library sequencing ...
  • Building fisheries institutions through collective action in Norway 

    Jentoft, Svein; Finstad, Bjørn-Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-16)
    Institutions, and the collective action that created them and which they enable, can play an important role in poverty eradication. In Norway, the Raw Fish Act passed in 1938 in the aftermath of the international financial crisis that hit the fishing industry hard, and the fishers’ cooperative sales-organizations that it authorized testify to this. Most of all, they helped to empower fishers in their ...
  • Synergy as strategy: learning from La Restinga, Canary Islands 

    Pascual-Fernández, José J.; De la Cruz Modino, Raquel; Chuenpagdee, Ratana; Jentoft, Svein (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-29)
    In this paper, we draw attention to the role of synergies in marine conservation and community sustainability. Using marine protected areas (MPAs) as examples, we argue that MPAs that are carefully designed to fit the existing social systems can be instrumental in synergy building and fostering community development. Such synergy creation is an essential governance strategy that helps enhance ...
  • Characterization of Rhamnolipids Produced by an Arctic Marine Bacterium from the Pseudomonas fluorescence Group 

    Kristoffersen, Venke; Rämä, Teppo; Isaksson, Johan; Andersen, Jeanette H.; Gerwick, William H.; Hansen, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-14)
    The marine environment is a rich source of biodiversity, including microorganisms that have proven to be prolific producers of bioactive secondary metabolites. Arctic seas are less explored than warmer, more accessible areas, providing a promising starting point to search for novel bioactive compounds. In the present work, an Arctic marine Pseudomonas sp. belonging to the Pseudomonas (P.) fluorescence ...
  • Influence of soak time on catch performance of commercial creels targeting Norway lobster (Nephrops norvegicus) in the Mediterranean Sea 

    Brčić, Jure; Herrmann, Bent; Mašanović, Marina; Šifner, Svjetlana Krstulović; Škeljo, Frane (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-13)
    Creel catch performance is known to be affected by the soak time in many fisheries. If creels maintained their efficiency over longer periods, increase in soak time should lead to proportional increase in catch quantity. However, the exact shape of this relationship is unknown for creel fisheries targeting Norway lobster (Nephrops norvegicus). If it was known fishermen could adjust their fishing ...
  • Anti-Cancer Potential of Homemade Fresh Garlic Extract Is Related to Increased Endoplasmic Reticulum Stress 

    Petrovic, Voin; Nepal, Anala; Olaisen, Camilla; Bachke, Siri; Hira, Jonathan; Søgaard, Caroline Krogh; Røst, Lisa Marie; Misund, Kristine; Andreassen, Trygve; Melø, Torun Margareta; Bartosova, Zdenka; Bruheim, Per; Otterlei, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-05)
    The use of garlic and garlic-based extracts has been linked to decreased incidence of cancer in epidemiological studies. Here we examine the molecular and cellular activities of a simple homemade ethanol-based garlic extract (GE). We show that GE inhibits growth of several different cancer cells in vitro, as well as cancer growth in vivo in a syngeneic orthotopic breast cancer model. Multiple myeloma ...
  • Size selection of Greenland halibut (Reinhardtius hippoglossoides) in the Norwegian bottom trawl fishery with a newly developed double grid system 

    Larsen, Roger B.; Herrmann, Bent; Sistiaga, Manu Berrondo; Grimaldo, Eduardo; Brinkhof, Jesse; Tatone, Ivan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
    Greenland halibut (<i>Reinhardtius hippoglossoides</i>) is a commercially important species in the northeast Atlantic trawl fishery. However, direct fishing for it is not allowed and it can only be harvested as bycatch. We investigated for the first time the size selection of Greenland halibut in a newly developed double steel grid system designed for the cod and haddock bottom trawl fishery. In ...
  • Effect of Bait Type and Bait Size on Catch Efficiency in the European Hake Merluccius merluccius Longline Fishery 

    Sistiaga, Manu Berrondo; Herrmann, Bent; Rindahl, Lasse; Tatone, Ivan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-21)
    We investigated the effect of bait type and bait size on the catch ef fi ciency of a demersal longline fi shery targeting European Hake Merluccius merluccius in the North Sea. Automation of the labor-intensive processes onboard fi shing vessels requires fi nding alternatives to the traditional bait used in the fi shery (i.e., whole European Pilchard Sardina pilchardus ). Of the six ...
  • The effect of algae diets (Skeletonema costatum and Rhodomonas baltica) on the biochemical composition and sensory characteristics of Pacific cupped oysters (Crassostrea gigas) during land-based refinement 

    van Houcke, Jasper; Medina, Isabel; Mæhre, Hanne K; Cornet, Josiane; Cardinal, Mireille; Linssen, Jozef; Luten, Joop (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-20)
    <p>Oyster refinement, a common practice in France, is aimed at increasing the weight of oyster tissue and influencing the taste properties of the refined oysters. Refinement usually takes place in land-based systems where the oysters are fed with relatively high concentrations of microalgae. In this study the impact of feeding <i>Skeletonema costatum</i> and <i>Rhodomonas baltica</i> on the biochemical ...
  • Parasitism and the Biodiversity-Functioning Relationship 

    Frainer, André; McKie, Brendan G.; Amundsen, Per-Arne; Knudsen, Rune; Lafferty, Kevin D. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-15)
    Species interactions can influence ecosystem functioning by enhancing or suppressing the activities of species that drive ecosystem processes, or by causing changes in biodiversity. However, one important class of species interactions – parasitism – has been little considered in biodiversity and ecosystem functioning (BD-EF) research. Parasites might increase or decrease ecosystem processes by ...
  • Studies on the effects of LPS, ß‐glucan and metabolic inhibitors on the respiratory burst and gene expression in Atlantic salmon macrophages 

    Ulvestad, Johanne Skår; Kumari, Jaya; Seternes, Tore; Chi, Heng; Dalmo, Roy Ambli (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-30)
    Reactive oxygen species (ROS) production in macrophage‐like cells is induced as an antimicrobial defence against invading pathogens. In this study, we have explored how different stimuli and metabolic inhibitors affect the level of respiratory burst in Atlantic salmon (<i>Salmo salar</i> L.) head kidney macrophage‐like cells. Cells stimulated in vitro by bacterial lipopolysaccharide (LPS) and ß‐glucan ...
  • Recovery from exhaustive swimming and its effect on fillet quality in haddock (Melanogrammus aeglefinus) 

    Karlsson-Drangsholt, Anders; Svalheim, Ragnhild Aven; Aas-Hansen, Øyvind; Olsen, Stein Harris; Midling, Kjell Øivind; Breen, Michael; Grimsbø, Endre; Johnsen, Helge K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-08)
    Wild haddock (<i>Melanogrammus aeglefinus</i>) of commercial size (0.8–2.49 kg, 45–60 cm) were swum to exhaustion in a large swim tunnel and then allowed to recuperate for 0, 3 or 6 h, to investigate the effects of exhaustive swimming on blood glucose, blood lactate and post mortem development of fillet quality. There was a positive linear relationship between critical (aerobic) swimming speed ...
  • Seasonal and yearly variation of total polyphenols, total anthocyanins and ellagic acid in different clones of cloudberries (Rubus chamaemorus L.) 

    Hykkerud, Anne Linn; Uleberg, Eivind; Hansen, Espen; Vervoort, Marieke; Mølmann, Jørgen; Martinussen, Inger (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-02)
    Cloudberry (Rubus chamaemorus L.) is a wild perennial shrub growing on peatland with a circumpolar distribution. The combined berries have a high polyphenol content comprised primarily of ellagitannins. A few commercial cultivars are available, and pre-breeding trials on clonal material from different geographical origins are in progress. The objective of this study was to investigate how the content ...
  • Profiling Atlantic salmon B cell populations: CpG-mediated TLR-ligation enhances IgM secretion and modulates immune gene expression 

    Jenberie, Shiferaw; Thim, Hanna Leena; Sunyer, J Oriol; Skjødt, Karsten; Jensen, Ingvill; Jørgensen, Jorunn B (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-23)
    While TLR-activated pathways are key regulators of B cell responses in mammals, their impact on teleost B cells are scarcely addressed. Here, the potential of Atlantic salmon B cells to respond to TLR ligands was shown by demonstrating a constitutive expression of nucleic-acid sensing TLRs in magnetic sorted IgM<sup>+</sup> cells. Of the two receptors recognizing CpG in teleosts, <i>tlr9</i> was the ...
  • Diversifying selection drives parallel evolution of gill raker number and body size along the speciation continuum of European whitefish 

    Häkli, Katja; Østbye, Kjartan; Kahilainen, Kimmo Kalevi; Amundsen, Per-Arne; Præbel, Kim (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-05)
    Adaptive radiation is the evolution of ecological and phenotypical diversity. It arises via ecological opportunity that promotes the exploration of underutilized or novel niches mediating specialization and reproductive isolation. The assumed precondition for rapid local adaptation is diversifying natural selection, but random genetic drift could also be a major driver of this process. We used 27 ...
  • The components of a food traceability system 

    Olsen, Petter; Borit, Melania (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-03)
    <p><i>Background</i>: Traceability of food products has become the focus of regional and national legislation, of many research and technical development initiatives and projects, and of many scientific articles. However, most of the scientific publications do not differentiate between the components of a traceability system, and those who do to some degree use inconsistent terminology and definitions. ...

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