Viser treff 2744-2763 av 5064

    • Labor market programs in Norway. Do labor market programs improve the job prospects for individuals with reduced working ability? An evaluation. 

      Hauan, Espen (Master thesis; Mastergradsoppgave, 2015-05-26)
      An econometric framework, anchored in the literature, is used to evaluate the effect of Norwegian labor market programs. In Norway, the social benefits can roughly be divided into: unemployment benefits, sickness benefits, work assessment allowance (WAA) and disability pension. Receivers of WAA are individuals that has been declared with reduced working ability because of physical/mental/social ...
    • Labour in fisheries: Task analysis of fishing operations on a Norwegian trawler 

      Kuz, Viktoriia (Master thesis; Mastergradsoppgave, 2019-11-15)
      This study investigates the labour on a Norwegian trawler through the study of tasks that are performed under the trawling operation. Study of tasks is one of the fundamental approaches to studying labour, and in this thesis, it is carried out using the technique of Hierarchical Task Analysis. This task analysis technique has been broadly and universally used in different industries for over 60 ...
    • Lack of quantitative training among early-career ecologists: A survey of the problemand potential solutions 

      Barraquand, Frédéric; Ezard, Thomas H.G.; Jørgensen, Peter S.; Zimmerman, Naupaka; Chamberlain, Scott; Salguero-Gòmez, Roberto; Curran, Timothy J.; Timothée, Poisot (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Lack of strong seasonality in macrobenthic communities from the northern Barents Sea shelf and Nansen Basin 

      Jorda Molina, Eric; Sen, Arunima; Bluhm, Bodil Annikki Ulla Barbro; Renaud, Paul Eric; Włodarska-Kowalczuk, Maria; Legeżyńska, Joanna; Oleszczuk, Barbara; Reiss, Henning (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-12)
      The Barents Sea has been coined ‘the Arctic hotspot’ of climate change due to the rapidity with which environmental changes are taking place. This transitional domain from Atlantic to Arctic waters is home to highly productive benthic communities. This system strongly fluctuates on a seasonal basis in its sympagic-pelagicbenthic coupling interactions, with potential effects on benthic standing ...
    • Lactic acid bacteria in finfish - An update 

      Ringø, Einar; Hoseinifar, Seyed Hossein; Ghosh, Koushik; Doan, Hien Van; Beck, Bo Ram; Song, Seong Kyu (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-10)
      A complex and dynamic community of microorganisms, play important roles within the fish gastrointestinal (GI) tract. Of the bacteria colonizing the GI tract, are lactic acid bacteria (LAB) generally considered as favorable microorganism due to their abilities to stimulating host GI development, digestive function, mucosal tolerance, stimulating immune response, and improved disease resistance. ...
    • Lactic acid bacteria in shellfish: Possibilities and challenges 

      Ringø, Einar; Doan, Hien Van; Lee, Soonho; Song, Seong Kyu (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-04)
      Several investigations have investigated the gut microbiota in shellfish species, but less information is available on the favorable gut bacteria colonizing the GI tract, the lactic acid bacteria (LAB), and these studies have revealed the presence of <i>Carnobacterium, Enterococcus, Lactobacillus, Lactococcus, Leuconostoc, Pediococcus, Streptococcus, Vagococcus</i>, and <i>Weissella</i>. Identification ...
    • Lagesilda i Pasvikvassdraget : langtidseffekter av en biologisk invasjon 

      Amundsen, Per-Arne; Gjelland, Karl Øystein; Knudsen, Rune; DalsbØ, laina h; Lien, Cesilie; Evjen, jan knut (Research report; Forskningsrapport, 2012)
      Pasvikvassdraget har siden 1991 vært gjenstand for omfattende økologiske studier i regi av Ferskvannsøkologisk faggruppe ved Universitetet i Tromsø. Undersøkelsene har særlig vært rettet mot å undersøke effektene av at lagesilda, en fremmed fiskeart for Nord-Norge, kom inn i vassdraget på slutten av 1980-tallet. For å få en grundig forståelse av økologien i vassdraget har studiene også omfattet ...
    • Lagring av ubefruktede egg fra Atlantisk laks (Salmo salar L.) - Effekter av mediesammensetning og lagringstid på uttrykk av maternale gener og embryooverlevelse 

      Øen, Magnus (Master thesis; Mastergradsoppgave, 2020-09-04)
      Norge er i verdenstoppen når det kommer til produksjon av oppdrettslaks der det avsettes betydelige mengder med ressurser til produksjon av rogn. Stamfisk er utvalgte individer som verdsettes på bakgrunn av fiskens egenskaper. For en eggprodusent kan det være ønskelig å kombinere kjønnsceller fra spesifikke individer på bakgrunn av deres kombinasjonspotensial. Dette kan gjennomføres hvis stamfisk ...
    • Lagring av ubefruktede egg fra Atlantisk laks (Salmo salar L.). Effekter av medier og lagringstid på indikatorer for eggkvalitet 

      Moen, Camilla Valan (Master thesis; Mastergradsoppgave, 2020-06-07)
      Eggkvalitet er definert som evnen et egg har til å bli befruktet og utvikles til et normalt embryo. Dårlig eggkvalitet kan føre til problemer med aktivering/befruktning eller senere stoppe embryonalutviklingen. Eggkvalitet baseres i hovedsak på egenskaper fra moren (maternale faktorer), men ytre faktorer kan påvirke eggkvaliteten. I kommersiell stamfiskproduksjon av Atlantisk laks (Salmo salar L.) ...
    • Lake size and fish diversity determine resource use and trophic position of a top predator in high-latitude lakes 

      Eloranta, Antti; Kahilainen, Kimmo K.; Amundsen, Per-Arne; Knudsen, Rune; Harrod, Chris; Jones, Roger I. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-23)
      Prey preference of top predators and energy flow across habitat boundaries are of fundamental importance for structure and function of aquatic and terrestrial ecosystems, as they may have strong effects on production, species diversity, and food-web stability. In lakes, littoral and pelagic food-web compartments are typically coupled and controlled by generalist fish top predators. However, the ...
    • Laksvel - Standardisert operasjonell velferdsovervåking for laks i matfiskanlegg 

      Nilsson, Jonatan; Gismervik, Kristine; Nielsen, Kristoffer Vale; Iversen, Martin Haugmo; Noble, Christopher; Kolarevic, Jelena; Frotjold, Hilde; Nilsen, Kathrine; Wilkinson, Eirik; Klakegg, Barbo; Hauge, Hege Sørvåg; Sæther, Per Anton; Kristiansen, Tore S; Stien, Lars Helge (Research report; Forskningsrapport, 2022)
      Selv om oppdrettere og fiskehelsepersonell har undersøkt og dokumentert velferden til laksen har det ikke funnes noen standardisert måte å gjøre dette på. Denne protokollen er laget for å kunne brukes som en felles standard.<p> <p>Når en lager en standardisert protokoll for rutinemessig overvåking av fiskevelferd er det mange hensyn å ta, og disse kan til dels være motstridende. Protokollen bør ...
    • Land-cover, climate and fjord morphology drive differences in organic matter and nutrient dynamics in two contrasting northern river-fjord systems 

      Schultze, Sabrina; Andersen, Tom; Hessen, Dag Olav; Ruus, Anders; Borgå, Katrine; Poste, Amanda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-31)
      Climate and land-use changes are leading to impacts on individual ecosystems as well as shifts in transfer dynamics between interconnected systems. At the land-ocean interface, changes in riverine inputs of organic matter (OM) and nutrients have the potential to lead to shifts in coastal carbon and nutrient cycling with consequences for ecosystem structure and function. In this study, we assess OM ...
    • Land-Ocean Interactions in a Changing Arctic: Effects of terrestrial inputs on coastal food-web carbon source and contamination in Isfjorden, Svalbard 

      McGovern, Maeve (Doctoral thesis; Doktorgradsavhandling, 2022-04-29)
      Climate change driven increases in temperature are enhancing land-ocean connectivity in the coastal Arctic, with a range of implications for coastal food-webs and contaminant cycling. Terrestrial inputs are a direct source of carbon and legacy contaminants to coastal areas, but as a source of freshwater, nutrients and suspended inorganic sediments, they can also affect coastal food-webs and contaminant ...
    • Lang tids bruk - en sikkerhet eller falsk trygghet? En kartlegging av lang tids bruk og dens egentlige betydning i forhandlinger om kvoter i og adgangen til marine havområder mellom konkurrerende stater 

      Figenschou-Cedewarft, Leif André (Master thesis; Mastergradsoppgave, 2007-06-06)
      I hvilken grad får lang tids bruk betydning ia dganegne til marine ressurser og i allokeringen av ressurser mellom konkurrerende stater?
    • Langt hjemmefra 

      Finstad, Bjørn-Petter; Normann, Anne Katrine (Journal article; Tidsskriftartikkel, 2022-04-06)
      Europa står i en krisesituasjon, med den største strømmen av mennesker på flukt siden andre verdenskrig, og kvinner og barn betaler som vanlig en høy pris. Men krig har brakt ukrainske kvinner til Norge før.
    • Langtidsstudie av næringsøkologi og vekst hos storørret i Pasvikvassdraget - en sammenligning mellom utsatt og vill ørret 

      Haugland, Øyvind (Master thesis; Mastergradsoppgave, 2014-05-15)
      Kraftutbyggingen i Pasvikvassdraget startet i 1964 og det finnes syv kraftverk i vassdraget. Storørretbestanden gikk kraftig tilbake som følge av kraftutbyggingen og i 1979 ble det startet et utsettingsprogram av ørret i elva for å kompensere for reduksjonen i størrelsen av den naturlige populasjonen. I dag settes det årlig ut 5000 ørret større enn 25 cm. Dette langtidsstudiet omhandler diett og ...
    • Large loss of CO2 in winter observed across the northern permafrost region 

      Natali, Susan M.; Watts, Jennifer D.; Rogers, Brendan M.; Potter, Stefano; Ludwig, Sarah M.; Selbmann, Anne-Katrin; Sullivan, Patrick F.; Abbott, Benjamin W.; Arndt, Kyla A.; Birch, Leah; Björkman, Mats P.; Bloom, A. Anthony; Celis, Gerardo; Christensen, Torben R.; Christiansen, Casper Tai; Commane, Roisin; Cooper, Elisabeth J.; Crill, Patrick; Czimczik, Claudia; Davydov, Sergey; Du, Jinyang; Egan, Jocelyn E.; Elberling, Bo; Euskirchen, Eugenie S.; Friborg, Thomas; Genet, Hélène; Göckede, Mathias; Goodrich, Jordan P.; Grogan, Paul; Helbig, Manuel; Jafarov, Elchin E.; Jastrow, Julie D.; Kalhori, Aram A. M.; Kim, Yongwon; Kimball, John S.; Kutzbach, Lars; Lara, Mark J.; Larsen, Klaus S.; Lee, Bang-Yong; Liu, Zhihua; Loranty, Michael M.; Lund, Magnus; Lupascu, Massimo; Madani, Nima; Malhotra, Avni; Matamala, Roser; McFarland, Jack; McGuire, A. David; Michelsen, Anders; Minions, Christina; Oechel, Walter C.; Olefeldt, David; Parmentier, Frans-Jan W.; Pirk, Norbert; Poulter, Ben; Quinton, William; Rezanezhad, Fereidoun; Risk, David; Sachs, Torsten; Schaefer, Kevin; Schmidt, Niels M.; Schuur, Edward A. G.; Semenchuk, Philipp R.; Shaver, Gaius; Sonnentag, Oliver; Starr, Gregory; Treat, Claire C.; Waldrop, Mark P.; Wang, Yihui; Welker, Jeffrey; Wille, Christian; Xu, Xiaofeng; Zhang, Zhen; Zhuang, Qianlai; Zona, Donatella (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-21)
      Recent warming in the Arctic, which has been amplified during the winter, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO<sub>2</sub>). However, the amount of CO<sub>2</sub> released in winter is not known and has not been well represented by ecosystem models or empirically based estimates. Here we synthesize regional in situ observations ...
    • Large scale patches of Calanus finmarchicus and associated hydrographic conditions off the Lofoten archipelago 

      Weidberg, Nicholas; Santana Hernandez, Nestor; Renner, Angelika; Falk‑Petersen, Stig; Basedow, Sünnje Linnéa (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-24)
      Large swarms of individuals at different spatiotemporal scales characterise the distributions of many animal species. In the ocean several mesozooplankton taxa aggregate in large patches or swarms driven by active behavioural responses to hydrographic structures, although intrinsic biotic characteristics of species´life cycles not related with the environment can also affect spatial distributions. ...
    • Large volume cryopreservation of lumpfish (Cyclopterus lumpus L.) sperm for commercial hatchery production 

      Opeifa, Bamidele Theophilus (Master thesis; Mastergradsoppgave, 2019-06-03)
      The growing Atlantic salmon (Salmo salar) aquaculture production is confronted with many challenges that limit the potential development of the industry. The major current problem threatening the salmon aquaculture production is the parasitic sea lice (Lepeophtheirus salmonis) that negatively affects both cultured salmon and wild stock populations. Several treatment options have failed to deliver ...
    • Large-scale patterns in community structure of benthos and fish in the Barents Sea 

      Johannesen, Edda; Jørgensen, Lis Lindal; Fossheim, Maria; Primicerio, Raul; Greenacre, Michael; Ljubin, Pavel A.; Dolgov, Andrey V.; Ingvaldsen, Randi; Anisimova, Natalya A.; Manushin, Igor E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-04-23)
      Biogeographical patterns have an ecological basis, but few empirical studies possess the necessary scale and resolution relevant for investigation. The Barents Sea shelf provides an ideal study area, as it is a transition area between Atlantic and Arctic regions, and is sampled by a comprehensive survey of all major functional groups. We studied spatial variation in species composition of demersal ...