Viser treff 185-204 av 928

    • Daylight-driven carbon exchange through a vertically structured microbial community 

      Moran, James J.; Bernstein, Hans Christopher; Mobberley, Jennifer M.; Thompson, Allison M.; Kim, Young-Mo; Dana, Karl L.; Cory, Alexandra B.; Courtney, Steph; Renslow, Ryan S.; Fredrickson, James K.; Kreuzer, Helen W.; Lipton, Mary S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-26)
      Interactions between autotrophs and heterotrophs are central to carbon (C) exchange across trophic levels in essentially all ecosystems and metabolite exchange is a frequent mechanism for distributing C within spatially structured ecosystems. Yet, despite the importance of C exchange, the timescales at which fixed C is transferred in microbial communities is poorly understood. We employed a ...
    • Deep-sea sponge derived environmental DNA analysis reveals demersal fish biodiversity of a remote Arctic ecosystem 

      Brodnicke, Ole Bjørn; Meyer, Heidi Kristina; Busch, Kathrin; Xavier, Joana R.; Knudsen, Steen Wilhelm; Møller, Peter Daniel Rask; Hentschel, Ute Humeida; Sweet, Michael John (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-18)
      The deep-sea is vast, remote, and largely underexplored. However, methodological advances in environmental DNA (eDNA) surveys could aid in the exploration efforts, such as using sponges as natural eDNA filters for studying fish biodiversity. In this study, we analyzed the eDNA from 116 sponge tissue samples and compared these to 18 water eDNA samples and visual surveys obtained on an Arctic seamount. ...
    • A deliberative approach to valuation and precautionary management of cold water corals in Norway 

      Falk-Andersson, Jannike; Foley, Naomi; Armstrong, Claire W.; van den Hove, Sybille; van Rensburg, Thomas; Tinch, Rob (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-17)
      This paper explores management challenges in relation to human impacts on cold water corals (CWC) in Norway. CWC are a slow growing organism about which there is uncertainty regarding distribution and values. We discuss area closures to protect this environmental public good against destructive fishing practices. Focus groups were combined with questionnaires to inform precautionary management ...
    • The demands they are a-changin' 

      Brækkan, Eivind Hestvik; Thyholdt, Sverre Braathen; Asche, Frank; Myrland, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-15)
      Smooth operators such as time trends are often applied to deal with unidentified demand shifters. However, if unknown factors affect demand irregularly, a time trend fails to capture the variation. We present an index approach for estimating irregular demand shifts, decomposing total demand shifts into predicted and unexplained effects. This allows separating demand shifts caused by known factors ...
    • Demographic and economic disparities among Arctic regions 

      Schmidt, Jennifer Irene; Aanesen, Margrethe; Klokov, Konstantin; Kruschov, Sergei; Hausner, Vera Helene (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-20)
      We use demographic and economic indicators to analyze spatial differences and temporal trends across 18 regions surrounding the Arctic Ocean. Multifactor and cluster analysis were used on 10 indicators reflecting income, employment and demography from 1995 to 2008. The main difference is between regions with high population densities, low natural growth rate, and low unemployment (Russia, Norway ...
    • Dendrobeaniamine A, a new alkaloid from the Arctic marine bryozoan Dendrobeania murrayana 

      Michael Siranjeevi, Raja Priyanka Mary; Hansen, Espen; Isaksson, Johan; Andersen, Jeanette hammer; Østnes Hansen, Kine (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-20)
      The new guanidine alkaloid Dendrobeaniamine A (1) was isolated from the organic extract of the Arctic marine bryozoan <i>Dendrobeania murrayana</i>. The chemical structure of 1 was elucidated by spectroscopic experiments, including 1D and 2D NMR and HRESIMS analysis. Compound 1 is a lipoamino acid, consisting of a C<sub>12</sub> fatty acid anchored to the amino acid arginine. The bioactivity of 1 ...
    • Dendrobeaniamine A, a new alkaloid from the Arctic marine bryozoan Dendrobeania murrayana 

      Michael Siranjeevi, Raja Priyanka Mary (Conference object; Konferansebidrag, 2019)
      Chemistry guided purification of the organic extract of the Arctic marine bryozoan <i>Dendrobeania murrayana</i> yielded one new compound, Dendrobeaniamine A, and it was present in abundant amounts in the organic extract. Dendrobeaniamine A is a fusion of long chain aliphatic fatty acid and the cationic amino acid residue arginine.The bioactivity and natural function of this compound thus remain to ...
    • Desarmillaria ectypa ny for Norge 

      Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2023)
      Desarmillaria ectypa was found new to Norway on Kvaløya, Tromsø municipality on 30th of July 2022. This rare mushroom grows on medium rich to rich fens and mires. It can be identified based on the growth habitat, medium-sized fruitbodies with yellow and brownish colors, scales on the hat center, lack of veil, gills with pinkish tint and white spores. The ecology, distribution and red-list status of ...
    • Description of the processes in the value chain and risk assessment of decomposition substances and oxidation products in fish Oils. Opinion of Steering Committee of the Norwegian Scientific Committee for Food Safety 

      Aursand, Marit; Hamre, Kristin; Knutsen, Helle Katrine; Maage, Amund; Arukwe, Augustine; Alexander, Jan; Amlund, Heidi; Bernhoft, Aksel; Brantsæter, Anne Lise; Eriksen, Gunnar Sundstøl; Fæste, Christiane Kruse; Krogdahl, Åshild; Haugen, Margaretha; Hemre, Gro Ingunn; Lassen, Jørgen Fr; Nerland, Audun Helge; Nesse, Live Lingaas; Næss, Bjørn; Ringø, Einar; Ruus, Anders; Skåre, Janneche Utne; Steffensen, Inger-Lise; Sundheim, Leif; Sverdrup, Line Emilie; Svihus, Birger; Thomsen, Cathrine; Torrissen, Ole; Østerås, Olav; Torstensen, Bente Elisabeth; Ørnsrud, Robin; Mozuraityte, Revilija (Research report; Forskningsrapport, 2011-10-19)
      The Norwegian Scientific Committee for Food Safety (VKM) has been asked by the Norwegian Food Safety Authority to perform a health risk assessment on decomposition substances and oxidation products in fish oils intended for human consumption except pharmaceuticals. Seal and/or krill oil intended for human consumption might be included but in separate chapters. EU’s hygiene regulations for the ...
    • Detection of specific Atlantic salmon antibodies against salmonid alphavirus using a bead-based immunoassay 

      Teige, Lena Hammerlund; Aksnes, Ida; Røsæg, Magnus Vikan; Jensen, Ingvill; Jørgensen, Jorunn; Sindre, Hilde; Collins, Catherine; Collet, Bertrand; Rimstad, Espen; Dahle, Maria; Boysen, Preben (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-30)
      Salmonid alphavirus (SAV) is the etiological cause of pancreas disease (PD) in Atlantic salmon (<i>Salmo salar</i>). Several vaccines against SAV are in use, but PD still cause significant mortality and concern in European aquaculture, raising the need for optimal tools to monitor SAV immunity. To monitor and control the distribution of PD in Norway, all salmonid farms are regularly screened for SAV ...
    • Determinants of trip duration for international tourists in Norway; a parametric survival analysis 

      Alizadeh Ashrafi, Tannaz; Myrland, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-10)
      How long a tourist stays in a host country acts as an indicator of tourism industry’s contribution towards the national economy. The purpose of this study is to examine how socio-demographic characteristics of international tourists, their travelling purpose, tourism products and characteristics of the destination influence the length of stay in Norway, by estimating a parametric survival model. ...
    • Determination of pH in pre rigor fish muscle - method matters 

      Skjold, Vetle; Joensen, Joan Karl; Esaiassen, Margrethe; Olsen, Ragnar Ludvig (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-06)
      The determination of post mortem muscle pH are often carried out in studies on how pre-slaughter handling influences the development of rigor mortis and the quality of the fish products. The analysis might be performed by inserting a pH-electrode into the intact flesh or using a suspension containing a minced muscle sample. Although it has been known for a long time that mincing muscle tissue ...
    • Diagnostikk av parasittsykdommer 

      Dale, Ole Bendik; Hansen, Haakon; Tørud, Brit; Erkinharju, Toni; Gjessing, Mona Cecilie (Journal article; Tidsskriftartikkel, 2022)
      Parasitter er alle snyltere, men de tilhører svært ulike grupper og har et mangfoldig levesett!
    • Dietary enrichment of apolipoprotein E-deficient mice with extra virgin olive oil in combination with seal oil inhibits atherogenesis 

      Cludts, Katrien; Eilertsen, Karl-Erik; Mæhre, Hanne K; Hoylaerts, Marc; Olsen, Jan Ole (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
    • Dietary inclusion of Orange peels derived pectin and Lactobacillus plantarum for Nile tilapia (Oreochromis niloticus) cultured under indoor biofloc systems 

      Van Doan, Hien; Hoseinifar, Seyed Hossein; Naraballobh, Watcharapong; Jaturasitha, Sanchai; Tongsiri, Sudaporn; Chitmanat, Chanagun; Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-04)
      A 12-week feeding trial was carried out to investigate possible effects of dietary orange peels derived pectin (OPDP) and <i>Lactobacillus plantarum</i> CR1T5 (LP) singularly or combined on innate immune response, disease resistance, and growth performance of Nile tilapia fingerlings under indoor biofloc system. The fingerlings were fed the following diets: diet 1 (0 g kg<sup>−1</sup> OPDP and ...
    • Dietary intake of cod and scallop reduces atherosclerotic burden in female apolipoprotein E-deficient mice fed a Western-type high fat diet for 13 weeks 

      Jensen, Ida-Johanne; Walquist, Mari; Liaset, Bjørn; Elvevoll, Edel Oddny; Eilertsen, Karl-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-02-02)
      <b>Background:</b> It is now increasingly recognized that the beneficial effects of seafood consumption is not limited to lipids and fatty acid, but that the protein part, i.e., peptides and amino acids, together with vitamins and even unknown bioactive constituents also are important for disease prevention. This study was designed to evaluate the putative anti-atherogenic effects of different ...
    • Dietary Succinate Impacts the Nutritional Metabolism, Protein Succinylation and Gut Microbiota of Zebrafish 

      Ding, Qianwen; Lu, Chenyao; Hao, Qiang; Zhang, Qingshuang; Yang, Yalin; Olsen, Rolf Erik; Ringø, Einar; Ran, Chao; Zhang, Zhen; Zhou, Zhigang (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-23)
      uccinate is widely used in the food and feed industry as an acidulant, flavoring additive, and antimicrobial agent. This study investigated the effects of dietary succinate on growth, energy budget, nutritional metabolism, protein succinylation, and gut microbiota composition of zebrafish. Zebrafish were fed a control-check (0% succinate) or four succinate-supplemented diets (0.05, 0.10, 0.15, and ...
    • Dietary supplementation of exopolysaccharides from Lactobacillus rhamnosus GCC-3 improved the resistance of zebrafish against spring viremia of carp virus infection 

      Xie, Mingxu; Li, Yu; Olsen, Rolf Erik; Ringø, Einar; Yang, Yalin; Zhang, Zhen; Ran, Chao; Zhou, Zhigang (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-05)
      Spring viremia of carp virus (SVCV) can cause high mortality of fish. The aim of this study was to investigate the effects of Lactobacillus rhamnosus GCC-3 exopolysaccharides (GCC-3 EPS) on zebrafish (Danio rerio) infected with SVCV and elucidate the underlying mechanisms. Zebrafish were fed with a control diet or diet supplemented with 0.5% and 1% of GCC-3 EPS for 2 weeks. The results showed ...
    • Differences in smolt status affect the resistance of Atlantic salmon (Salmo salar L.) against infectious pancreatic necrosis, while vaccine-mediated protection is unaffected 

      Jensen, Ingvill; Overrein, Mathias; Fredriksen, Børge Nilsen; Strandskog, Guro; Seternes, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-18)
      In today's aquaculture of Atlantic salmon (<i>Salmo salar</i> L.), a majority of viral disease outbreaks occur after seawater transfer. A relevant question is how the parr–smolt transformation influences the efficacy of viral vaccines and the innate resistance against viral diseases. In this study, vaccinated and unvaccinated A. salmon parr were exposed to different photoperiodic regimens (1‐, 3‐ ...
    • Different types of intuition at the workplace: an integrative review 

      Svenson, Frithiof; Pietrzak, Piotr; Launer, Markus A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-16)
      To make good decisions, employees must manage their own intuitions and be able to anticipate decision-making in their work environment. How well this is accomplished has significant consequences for the workplace. A closer examination indicates that individuals utilize various types of intuition. People’s work context is frequently omitted from studies on the use of intuition, resulting in a ...