Viser treff 668-687 av 930

    • A plant 35S CaMV promoter induces long-term expression of luciferase in Atlantic salmon 

      Seternes, Tore; Tonheim, Tom Christian; Myhr, Anne Ingeborg; Dalmo, Roy Ambli (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      The long-term persistence and activity of a naked plasmid DNA (pGL3-35S) containing a luc gene (reporter gene) controlled by a plant 35S CaMV promoter was studied in Atlantic salmon (Salmo salar L.) after injection. Atlantic salmon (mean weight 70 grams) were injected intramuscularly with 100 μg of plasmid DNA. Blood, different tissues and organs were sampled at different time points up to day 535 ...
    • Playing with the Past to Understand the Present: The potential of using Nusfjord (2017) to Teach About the Complexity of Fisheries as SocioEcological Systems 

      Weines, Jørn; Borit, Melania (Journal article; Tidsskriftartikkel, 2019-10-17)
      Games are vehicles that transport their players between different realties (Peters & Westelaken 2014). By doing this, they have the potential to provide many different benefits for their players, such as relaxation, excitement, social interaction, and learning. Higher education is increasingly trying to capitalize on this potential and many teachers now make use of different forms of game-based learning ...
    • Polar front associated variation in prokaryotic community structure in Arctic shelf seafloor 

      Nguyen, Tan Thi; Landfald, Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-23)
      Spatial variations in composition of marine microbial communities and its causes have largely been disclosed in studies comprising rather large environmental and spatial differences. In the present study, we explored if a moderate but temporally permanent climatic division within a contiguous arctic shelf seafloor was traceable in the diversity patterns of its bacterial and archaeal communities. ...
    • Policy context as a factor of bias in the valuation of environmental goods – a dual-process theories perspective 

      Nikitina, Ekaterina (Journal article; Tidsskriftartikkel, 2018-03-13)
      When ecosystem services value estimates are applied in the economic assessment of environmental policies, high accuracy of these estimates is required. One of the directions in the scientific discussion on biases in stated preference (SP) valuation surveys builds on dual-process theories of judgment. The paper contributes to this literature by presenting an experiment where two types of judgment ...
    • The Political Game of European Fisheries Management 

      Aanesen, Margrethe; Armstrong, Claire W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-14)
      European fisheries activities are subject to a hierarchy of regulatory authorities. This raises questions regarding the implications of strategic interaction between different authority levels concerning the regulation of these activities. We apply a bio-economic objective function where fishers and regulators have environmental, economic and social preferences, and where fishers are subject to ...
    • Polygenic selection drives the evolution of convergent transcriptomic landscapes across continents within a Nearctic sister species complex 

      Rougeux, Clement; Gagnaire, Pierre‐Alexandre; Præbel, Kim; Seehausen, Ole; Bernatchez, Louis (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-03)
      In contrast to the plethora of studies focusing on the genomic basis of adaptive phenotypic divergence, the role of gene expression during speciation has been much less investigated and consequently less understood. Yet, the convergence of differential gene expression patterns between closely related species‐pairs might reflect the role of natural selection during the process of ecological speciation. ...
    • Ponasterone A and F, Ecdysteroids from the Arctic Bryozoan Alcyonidium gelatinosum 

      Østnes Hanssen, Kine; Isaksson, Johan; Glomsaker, Eirin; Andersen, Jeanette hammer; Hansen, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-19)
      A new ecdysteroid, ponasterone F (1) and the previously reported compound ponasterone A (2) were isolated from specimens of the Arctic marine bryozoan Alcyonidium gelatinosum collected at Hopenbanken, off the coast of Edgeøya, Svalbard. The structure of 1 was elucidated, and the structure of 2 confirmed by spectroscopic methods including 1D and 2D NMR and analysis of HR-MS data. The compounds were ...
    • Population genetic structure of a major reef-building coral species Acropora downingi in northeastern Arabian Peninsula 

      Torquato, Felipe; Bouwmeester, Jessica; Range, Pedro; Marshell, Alyssa; Priest, Mark A.; Burt, John A.; Møller, Peter Daniel Rask; Ben-Hamadou, Radhouan (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-03)
      Current seawater temperatures around the northeastern Arabian Peninsula resemble future global forecasts as temperatures [35 C are commonly observed in summer. To provide a more fundamental aim of understanding the structure of wild populations in extreme environmental conditions, we conducted a population genetic study of a widespread, regional endemic table coral species, Acropora downingi, ...
    • Population structure and biology of shortfin mako, Isurus oxyrinchus, in the south-west Indian Ocean 

      Groeneveld, Johan C.; Cliff, G.; Dudley, S.F.J.; Foulis, A.J.; Santos, Jorge; Wintner, S.P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Possible Health Effects of a Wax Ester Rich Marine Oil 

      Schots, Pauke C.; Pedersen, Alice Marie; Eilertsen, Karl-Erik; Olsen, Ragnar Ludvig; Larsen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-26)
      The consumption of seafood and the use of fish oil for the production of nutraceuticals and fish feed have increased over the past decades due the high content of long-chain polyunsaturated omega-3 fatty acids. This increase has put pressure on the sustainability of fisheries. One way to overcome the limited supply of fish oil is to harvest lower in the marine food web. <i>Calanus finmarchicus</i>, ...
    • Potential for codends with shortened lastridge ropes to replace mandated selection devices in demersal trawl fisheries 

      Sistiaga, Manu; Brinkhof, Jesse; Herrmann, Bent; Larsen, Roger B.; Grimaldo, Eduardo; Cerbule, Kristine; Brinkhof, Ilmar; Jørgensen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-28)
      In many trawl fisheries, codend size selectivity is supplemented by adding selection devices to the gear. In the Barents Sea gadoid fishery, combining diamond mesh codends with sorting grids is compulsory. However, the use of grids increases the costs and complexity of the gear, causing discontent among fishermen and prompting researchers to seek alternative solutions. Lastridge ropes are ropes ...
    • Potential for Sustainable Aquaculture: Insights from Discrete Choice Experiments 

      Bui, Bich Xuân; Sandoft, Erlend (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-04)
      The growth in global aquaculture production may address the lack of sustainability in wild fisheries, alleviate poverty in rural and coastal areas, and help meet the worldwide increase in demand for animal protein. However, there is an ongoing debate about the severity of the environmental impact of aquaculture production. Investing in new high-tech production systems can address both productivity ...
    • The potential of anthocyanin-loaded alginate hydrogel beads for intelligent packaging applications: Stability and sensitivity to volatile amines 

      Mohammadalinejhad, Samira; Kurek, Marcin; Jensen, Ida-Johanne; Lerfall, Jørgen (Journal article; Tidsskriftartikkel, 2023-08-05)
      pH indicators have emerged as promising tools for real-time monitoring of product freshness and quality in intelligent food packaging applications. However, ensuring the stability of these indicators is critical for practical use. This study aims to evaluate the stability of anthocyanins-loaded alginate hydrogel beads of varying sizes at different temperatures under accelerated light conditions and ...
    • Power and the Production of Science. Assessing Cod Stocks as the Mechanistic Fishery Collapses 

      Sinclair, Peter R.; Johnsen, Jahn Petter; Ripley, Paul (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
      This paper discusses power relations in the production of knowledge claims and the validation of management strategies. The experience of doing stock assessment science and creating management plans for Canada’s east coast cod fishery illustrates this general process. We demonstrate that the cyborgization of fisheries-management is limited by its inability to produce power for stabilizing the ...
    • Praksis som læringsform i studier uten profesjonstilknytning - utfordringer og muligheter 

      Finstad, Bjørn-Petter; Sandvoll, Ragnhild; Lien, Ingrid Hovda (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-28)
      Hvilke muligheter og utfordringer kan oppstå med praksis som læringsform i utdanninger som ikke er spesifikt profesjonsrettet? I profesjonsutdanninger deler praksisvirksomhetene og utdanningsinstitusjonene ofte en felles forståelse av hva som skal oppnås i praksis, mens i ikke-profesjonsrettede studieløp er det andre utfordringer. I et nylig oppstartet prosjekt som heter «Samarbeid om praksis i ...
    • Preclinical and clinical studies on antioxidative, antihypertensive and cardioprotective effect of marine proteins and peptides - A review 

      Jensen, Ida-Johanne; Mæhre, Hanne K (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-18)
      High seafood consumption has traditionally been linked to a reduced risk of cardiovascular diseases, mainly due to the lipid lowering effects of the long chained omega 3 fatty acids. However, fish and seafood are also excellent sources of good quality proteins and emerging documentation show that, upon digestion, these proteins are sources for bioactive peptides with documented favorable ...
    • Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach 

      Madsen, Nina; Aarsæther, Karl Gunnar; Herrmann, Bent (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-03)
      Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process. The seine ropes and net are deployed in a specific pattern encircling an area on the seabed. In some variants of demersal seining the haul-in procedure includes a towing phase where the fishing vessel moves ...
    • Prediction of goldsinny wrasse (Ctenolabrus rupestris) minimum size required to avoid escape through salmon (Salmo salar) farm nets 

      Sistiaga, Manu; Herrmann, Bent; Jørgensen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-07)
      The salmon (Salmo salar) aquaculture industry has used various practices to treat salmon louse (Lepeophtheirus salmonis) infections, including mechanical, thermal, and chemical treatments. However, due to the environmental and fish welfare issues, and limitations associated with these practices, the use of cleaner fish has become a popular complementary delousing method. The goldsinny wrasse ...
    • Prediction of Neighbor-dependent Microbial Interactions from Limited Population Data 

      Lee, Joon-Yong; Haruta, Shin; Kato, Souichiro; Bernstein, Hans Christopher; Lindemann, Stephen R.; Lee, Dong-Yup; Fredrickson, Jim K.; Song, Hyun-Seob (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-21)
      Modulation of interspecies interactions by the presence of neighbor species is a key ecological factor that governs dynamics and function of microbial communities, yet the development of theoretical frameworks explicit for understanding context-dependent interactions are still nascent. In a recent study, we proposed a novel rule-based inference method termed the Minimal Interspecies Interaction ...
    • Prediction of potential net panel selectivity in mesopelagic trawls 

      Grimaldo, Eduardo; Herrmann, Bent; Brčić, Jure; Cerbule, Kristine; Brinkhof, Jesse; Grimsmo, Leif; Jacques, Nadine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-17)
      The growing interest in harvesting mesopelagic fish species has increased the need for knowledge about how trawls should be designed for optimizing the catch efficiency of these resources. Since the net herding efficiency for small mesopelagic fish species is unknown, trawls targeting these species need to consider the potential net panel selectivity along the entire trawl body. Therefore, trawl ...