Viser treff 525-544 av 930

    • Latour, natur,og havforskere : hvordan produsere natur? 

      Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2004)
    • LC-MS based dereplication and isolation of compound from Arctic marine bryozoan Dendrobeania murrayana 

      Michael Siranjeevi, Raja Priyanka Mary (Conference object; Konferansebidrag, 2018)
      The new guanidine based alkaloid Dendrobeaniamine A was isolated from the organic crude extract of the Arctic marine bryozoan <i>Dendrobeania murrayana</i>. The structure was determined by interpretation of data from 1D and 2D NMR spectroscopic methods and mass spectrometry (HR-MS) analysis. Dendrobeaniamine A did not show any biological activities in the applied bioassays. Further bioactivity ...
    • Lessons from bright-spots for advancing knowledge exchange at the interface of marine science and policy 

      Karcher, Denis B.; Cvitanovic, Christopher; van Putten, Ingrid E.; Colvin, Rebecca M.; Armitage, Derek; Aswani, Shankar; Ballesteros, Marta; Ban, Natalie C.; Barragán-Paladines, María José; Bednarek, Angela; Bell, Johann D.; Brooks, Cassandra M.; Daw, Tim M.; de la Cruz-Modino, Raquel; Francis, Tessa B.; Fulton, Elizabeth A.; Hobday, Alistair J.; Holcer, Draško; Hudson, Charlotte; Jennerjahn, Tim C.; Kinney, Aimee; Knol-Kauffman, Maaike; Löf, Marie F.; Lopes, Priscila F.M.; Mackelworth, Peter C.; McQuatters-Gollop, Abigail; Muhl, Ella-Kari; Neihapi, Pita; Pascual-Fernández, José J.; Posner, Stephen M.; Runhaar, Hens; Sainsbury, Keith; Sander, Gunnar; Steenbergen, Dirk J.; Tuda, Paul M.; Whiteman, Elizabeth; Zhang, Jialin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-19)
      Evidence-informed decision-making is in increasing demand given growing pressures on marine environments. A way to facilitate this is by knowledge exchange among marine scientists and decision-makers. While many barriers are reported in the literature, there are also examples whereby research has successfully informed marine decision-making (i.e., ‘bright-spots’). Here, we identify and analyze 25 ...
    • Life above water: small-scale fisheries as a human experience 

      Jentoft, Svein (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-09)
      “Life under water” is UN Sustainable Development Goal No. 14, under which small-scale fisheries fall. Yet, most of what is happening in small-scale fisheries, and certainly those things that are interesting to social scientists, are taking place above water—on the water and by the water. Small-scale fishers make their living off the fish that swims in the ocean, but they do so with the lives they ...
    • A life after Research? First Release of Harp Seals (Phoca groenlandica) after Temporary Captivity for Scientific Purposes 

      Blanchet, Marie-Anne; Acquarone, Mario; Biuw, Martin; Larsen, Roger B.; Nordøy, Erling Sverre; Folkow, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-08)
      Three wild-caught female harp seals (Pagophilus groenlandicus) from the Greenland Sea stock were brought into temporary captivity in connection with a controlled validation study on energetics. The two pups and one adult were kept in two indoor and outdoor experimental facilities approved by the Norwegian Animal Research Authority. They were trained daily using operant conditioning to participate ...
    • Life history of the gray snapper at the warm edge of its distribution range in the Caribbean 

      Andrade, Hector; Santos, Jorge (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-09)
      Knowledge of the life history of populations at the warm edge of their distributional range can provide a better understanding of how they will adapt to climate warming, including potential poleward redistribution. The range of Gray Snapper Lutjanus griseus has the potential to expand along its northern temperate fringe, but little is known about this species in the warmest portion of its range. ...
    • Lipid yield from the diatom Porosira glacialis is determined by solvent choice and number of extractions, independent of cell disruption 

      Svenning, Jon Brage; Dalheim, Lars; Vasskog, Terje; Vang, Birthe; Matricon, Lucie; Olsen, Ragnar Ludvig (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-17)
      Cell wall disruption is necessary to maximize lipid extraction yields in conventional species of mass-cultivated microalgae. This study investigated the effect of sonication, solvent choice and number of extractions on the lipid yield, lipid class composition and fatty acid composition of the diatom <i>Porosira glacialis</i>. For comparison, the diatom <i>Odontella aurita</i> and green alga <i>Chlorella ...
    • Livslang læring - fra slagord til reform 

      Arbo, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-15)
      Livslang læring er det nye mantraet. Det dukket opp som et slagord for utdanningsreform på 1970-tallet og er i dag noe som alle tilsynelatende er enige om. Men livslang læring har ulike betydninger og begrunnelser. Veien fra slagord til reform har også vært lang. Denne artikkelen gir et tilbakeblikk på den sammensatte bruken av begrepet og oppsummerer de viktigste reformene som har vært gjennomført ...
    • Local empowerment through the creation of coastal space? 

      Johnsen, Jahn Petter; Hersoug, Bjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Developments in national fisheries and marine environmental policies during the last 30 years have changed the relationship between coastal communities and the marine resources that people in these communities traditionally harvested. In Norway, for example, when the state authorities have made decisions to defend what they regard as national interests, the local level has been left with authority ...
    • Lokalsamfunnet – infrastruktur eller kulisse for fisketurisme? 

      Nordstrand, Kristin Berg; Johnsen, Jahn Petter (Chapter; Bokkapittel, 2008)
      Fisketurismen – nye aktører i kystsamfunn? Hvert år deltar flere tusen fiskere i vårtorskefisket utenfor Lofoten og Vesterålen. Når skreien kommer inn til kysten i januar/februar for å gyte, starter det årlige eventyret som kalles Lofotfisket. Fiskerne tar i løpet av noen måneder opp rundt 40 000 tonn fisk. Men det er ikke bare yrkesfiskerne som strømmer til området under sesongen. Også turistene ...
    • Long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar) 

      Moltumyr, Lene; Nilsson, Jonatan; Madaro, Angelico; Seternes, Tore; Rønnestad, Ivar; Stien, Lars Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-30)
      Warm water treatment has in recent years become widely used for ridding salmonids of sea lice in aquaculture although the consequences of the treatment for fish welfare are not adequately investigated. The objective of this study was to document potential long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar). Five weeks after a baseline welfare indicator ...
    • Lov og praksis i fiskeriforvaltningen 

      Trondsen, Torbjørn; Luther, Arne (Chronicle; Kronikk, 2016-09-28)
    • Lulworthinone, a New Dimeric Naphthopyrone From a Marine Fungus in the Family Lulworthiaceae With Antibacterial Activity Against Clinical Methicillin-Resistant Staphylococcus aureus Isolates 

      Jenssen, Marte; Rainsford, Philip; Juskewitz, Eric; Andersen, Jeanette Hammer; Hansen, Espen; Isaksson, Johan; Rämä, Teppo; Østnes Hansen, Kine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-01)
      The emergence of drug-resistant bacteria is increasing rapidly in all parts of the world, and the need for new antibiotics is urgent. In our continuous search for new antimicrobial molecules from under-investigated Arctic marine microorganisms, a marine fungus belonging to the family Lulworthiaceae (Lulworthiales, Sordariomycetes, and Ascomycota) was studied. The fungus was isolated from driftwood, ...
    • Lumpsucker (Cyclopterus lumpus) otoliths: dissection, mounting and age-reading 

      Albert, Ole Thomas; Bertelsen, Bernt; Jonsson, Sigurd T.; Pettersen, Ivar H.; Torstensen, Else (Research report; Forskningsrapport, 2000-05)
      A workshop was held at Institute of Marine Research, Flødevigen Marine Research Station, Arendal, Norway, 17-19 February 1999, to investigate methodes for age-determination of lumpsucker (Cyclopterus lumpus) from otoliths. The report summarises the results from the workshop and some subsequent analyses. The otoliths are very small and special training is necessary to locate them. The zonation pattern ...
    • Lysophosphatidylcholines and Chlorophyll-Derived Molecules from the Diatom Cylindrotheca closterium with Anti-Inflammatory Activity 

      Lauritano, Chiara; Helland, Kirsti; Riccio, Gennaro; Andersen, Jeanette Hammer; Ianora, Adrianna; Hansen, Espen Holst (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-17)
      Microalgae have been shown to be excellent producers of lipids, pigments, carbohydrates, and a plethora of secondary metabolites with possible applications in the pharmacological, nutraceutical, and cosmeceutical sectors. Recently, various microalgal raw extracts have been found to have anti-inflammatory properties. In this study, we performed the fractionation of raw extracts of the diatom ...
    • Make it simpler and better: T90 codend improves size selectivity and catch efficiency compared with the grid-and-diamond mesh codend in the Northeast Atlantic bottom trawl fishery for gadoids 

      Brinkhof, Jesse; Larsen, Roger B.; Herrmann, Bent (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-08)
      The use of a sorting grid followed by a size-selective codend with minimum 130 mm mesh size is compulsory in the Northeast Atlantic demersal trawl fishery targeting cod (Gadus morhua), haddock (Melanogrammus aeglefinus), and saithe (Polachius virens). However, sorting grids cause some disadvantages, which possibly can be solved by removing the grid and improving codend selectivity, thus making the ...
    • Making ecosystem-based management operational: Integrated monitoring in Norway 

      Knol, Maaike (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Ecosystem-based management presupposes that the state and development trends of an ecosystem - or of ecological quality - can be measured and followed. Currently, in many coastal countries there exists a variety of monitoring practices that are concerned with single issues only, and are not an integrated part of a larger framework. With the trend towards more comprehensive forms of ecosystem-based ...
    • Making the Arctic predictable: The changing information infrastructure of Arctic weather and sea ice services 

      Knol, Maaike; Arbo, Peter; Duske, Paula; Gerland, Sebastian; Lamers, Machiel; Pavlova, Olga; Sivle, Anders Doksæter; Tronstad, Stein (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-19)
      This paper explores the changing infrastructure around weather and sea ice information provisioning for Arctic marine areas. Traditionally, the most important providers of operational information on sea ice and weather conditions are the national sea ice and meteorological services. More recently, the community of Arctic information providers has become more heterogeneous with the establishment of ...
    • Managing size selectivity: the relevance of compulsory and alternative selection devices in the Northeast Atlantic bottom trawl fishery 

      Brinkhof, Jesse; Sistiaga, Manu; Herrmann, Bent; Grimaldo Vela, Eduardo Enrique; Larsen, Roger B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-14)
      Two decades of use of the compulsory selectivity gear configuration in the Northeast Atlantic bottom trawl fishery, which consists of a rigid sorting grid followed by a diamond mesh codend, have revealed problems with performance and efficiency. Size selectivity gear alternatives to this configuration are being pursued, and recent studies of codends with shortened lastridges have reported promising ...
    • Mapping uncertainties in the upstream : the case of PLGA Nanoparticles in Salmon Vaccines. 

      Nielsen, Kåre Nolde; Fredriksen, Børge Nilsen; Myhr, Anne Ingeborg (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The diversity of nanotechnologies and of the governance challenges that their applications raise calls for exploration and learning across different cases. We present an Upstream Oversight Assessment (UOA) of expected benefits and potential harms of nanoparticles made of a synthetic polymer (PLGA) to improve vaccines for farmed salmon. Suggested by Jennifer Kuzma and colleagues, an UOA may help ...