Viser treff 177-196 av 928

    • Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish 

      Hemre, Gro-Ingun; Ringø, Einar; Amlund, Heidi; Aursand, Marit; Bakke-McKellep, Anne Marie; Olsen, Rolf Erik; Svihus, Birger (Research report; Forskningsrapport, 2009)
      A thorough review of different aspects on the health implications of using vegetable feed ingredients, both protein and lipid alternatives to fishmeal and fish oil, plus possible additions of immunostimulants, also including a short chapter on undesirable components, the use of genetically modified plants, and how processing may affect feed quality and availability, are given in the different chapters ...
    • Critical Role of an MHC Class I-Like/Innate-Like T Cell Immune Surveillance System in Host Defense against Ranavirus (Frog Virus 3) Infection 

      Edholm, Eva-Stina Isabella; De Jesus Andino, Francisco; Yim, Jinyeong; Woo, Katherine; Robert, Jacques (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-06)
      Besides the central role of classical Major Histocompatibility Complex (MHC) class Ia-restricted conventional Cluster of Differentiation 8 (CD8) T cells in antiviral host immune response, the amphibian <i>Xenopus laevis</i> critically rely on MHC class I-like (mhc1b10.1.L or XNC10)-restricted innate-like (i)T cells (iVα6 T cells) to control infection by the ranavirus Frog virus 3 (FV3). To complement ...
    • Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity 

      Hagestad, Ole Christian; Andersen, Jeanette hammer; Altermark, Bjørn; Hansen, Espen; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-27)
      During a research cruise in 2016, we isolated fungi from sediments, seawater, driftwood, fruiting bodies, and macroalgae using three different media to assess species richness and potential bioactivity of cultivable marine fungi in the High Arctic region. Ten stations from the Svalbard archipelago (73–80 °N, 18–31 °E) were investigated and 33 fungal isolates were obtained. These grouped into 22 ...
    • The Cyborgization of the Fisheries : on Attempts to Make Fisheries Management Possible 

      Johnsen, Jahn Petter; Sinclair, Peter; Bavington, Dean; Holm, Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
      Although natural resource exploitation has a long tradition, modern resource management is a more recent phenomenon. The huge variety in natural resource exploitation has made it difficult to place the industrial harvesting of marine living resources under political and managerial control. For most of history fish and fishing people have for all practical purposes been unmanageable. From the late ...
    • Data Envelopment Analysis for Analyzing Technical Efficiency in Aquaculture: The bootstrap methods 

      Pham, Thi Thanh Thuy (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-14)
      The paper adopts the bootstrap procedures for data envelopment analysis to analyze the technical efficiency in the Vietnam’s intensive white-leg shrimp farming. The results demonstrate that the null hypothesis of constant returns-to-scale is rejected in favor of variable returns-to-scale for the production technology. Moreover, the potential improvement is greater using bootstrapping than that ...
    • Data on European seafood biomass production by country, sectors, and species in 2004–2014 and on ecological characteristics of the main species produced 

      Blanchet, Marie-Anne; Primicerio, Raul; Smalås, Aslak; Arias-Hansen, Juliana; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-30)
      In this data article, we present the 2004–2014 average European seafood production volume by production sector, country, and species. The production data originates from the Food and Agriculture Organisation of the United Nations (FAO) and covers three production sectors: Marine fisheries, marine aquaculture, and freshwater production. We present the main ecological characteristics of each species ...
    • Data on European seafood biomass production by country, sectors, and species in 2004–2014 and on ecological characteristics of the main species produced 

      Blanchet, Marie-Anne; Primicerio, Raul; Smalås, Aslak; Arias-Hansen, Juliana; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-30)
      In this data article, we present the 2004–2014 average European seafood production volume by production sector, country, and species. The production data originates from the Food and Agriculture Organisation of the United Nations (FAO) and covers three production sectors: Marine fisheries, marine aquaculture, and freshwater production. We present the main ecological characteristics of each species ...
    • Data Stewardship (DocEnhance) 

      Risan Johnsen, Hanne; Andreassen, Helene N. (Conference object; Konferansebidrag, 2022)
    • 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 ...