Viser treff 4830-4849 av 5062

    • Vaccination of Atlantic cod (Gadus morhua L.) against atypical furunculosis using different adjuvants 

      Hamid, Lemia M.O (Master thesis; Mastergradsoppgave, 2003-05-22)
      In recent years increased attention has been focussed on fish vaccines and vaccination against diseases in farmed fish. In this study, efficacy and side effects of vaccination against atypical furunculosis in Atlantic cod (Gadus morhua L.) were studied in an experimental trial by using different adjuvants. The different adjuvanted vaccines were administered by intraperitoneal injection (i.p.) ...
    • Vaccination of Atlantic lumpfish (Cyclopterus lumpus L.) at a low temperature leads to a low antibody response against Aeromonas salmonicida 

      Erkinharju, Toni; Dalmo, Roy Ambli; Vågsnes, Øyvind; Hordvik, Ivar; Seternes, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-11)
      We present a study on the effect of water temperature on immunization of Atlantic lumpfish. In total, 360 fish were vaccinated with either 50 μl of an oil‐based injection vaccine (VAX), with Aeromonas salmonicida and Vibrio salmonicida antigens, or PBS. Fish were vaccinated at three different water temperatures, 5°C, 10°C and 15°C, and sorted into six groups (N = 60). Lumpfish were weighed every 3 ...
    • Vaccine adjuvants in fish vaccines make a difference: comparing the effects of three adjuvants (Montanide ISA763A oil, CpG/poly I:C combo and VHSV glycoprotein) used alone or in combination to formulate an inactivated salmonid alphavirus whole virus antigen 

      Thim, Hanna Leena; Villoing, Stéphane; McLoughlin, Marian F; Cristie, Karen Elina; Grove, Søren; Frost, Petter; Jørgensen, Jorunn B (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Vaccine Adjuvants Induce Formation of Intraperitoneal Extracellular Traps in Flounder (Paralichthys olivaceus) 

      Li, Qian; Chi, Heng; Shi, Xueyan; Gan, Qiujie; Dalmo, Roy Ambli; Sun, Yuan-Yuan; Tang, Xiaoqian; Xing, Jing; Sheng, Xiuzhen; Zhan, Wenbin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-30)
      Adjuvants are used to increase the strength, quality, and duration of the immune response of vaccines. Neutrophils are the first immune cells that arrive at the injection site and can release DNA fibers together with granular proteins, so-called neutrophil extracellular traps (NETs), to entrap microbes in a sticky matrix of extracellular chromatin and microbicidal agents. Similar extracellular ...
    • Vaksinering og smoltifisering av atlantisk laks (Salmo salar L.). Betydning av sjøvannstoleranse for mottakelighet for infeksiøs pankreas nekrose (IPN) 

      Overrein, Mathias (Master thesis; Mastergradsoppgave, 2015-11-14)
      Dødelighet hos smolt etter sjøutsett er et stort problem for lakseoppdrettsnæringen, og en betydelig del av all fisk som settes ut i havet når ikke konsum. Nøye overvåking og analysering av smolten gjøres for å sikre at den skal håndtere overgangen fra ferskvann til sjøvann på best mulig måte. Tross dette har man ikke klart å kartlegge nøyaktig hvorfor så mange fisk dør i starten av sjøfasen, og ...
    • Valg av innovasjonsoppdrag på bakgrunn av strategiske prosesser : med utgangspunkt i telemedisinindustrien 

      Ahlkvist, Christina Elaine (Master thesis; Mastergradsoppgave, 2014-05-30)
      I studier av strategi er det forsket på sammenhengen mellom strategi og innovasjon. De to begrepene henger tett sammen fordi det handler om hvordan strategisk styring kan tilrettelegge for innovasjon. Endrede økonomiske situasjoner øker behov for en retning i organisasjoner fordi det oppstår knapphet på ressurser. Fokuset i studien ses i sammenheng med strategi og innovasjon og er utvidet til å ...
    • Validating the Tritiated Water Method in Adult Harp Seal 

      Sørli, Bernhard Jakob Salen (Master thesis; Mastergradsoppgave, 2022-05-16)
      As one of the top predators in the northeast Atlantic, and most numerous, the harp seal (Pagophilus groenlandicus), has a significant role in the higher trophic levels in the ecosystem. Their condition can be an indicator of changes in prey availability, competition with other species or even climate. It can also be a useful tool in predicting the pup production and breeding success. The ...
    • Validation of pop-up satellite archival tags (PSATs) on Atlantic cod (Gadus morhua) in a Greenland fjord 

      Nielsen, Julius; Estévez-Barcia, Daniel; Post, Søren; Christensen, Helle Torp; Retzel, Anja; Meire, Lorenz; Rigét, Frank; Strøm, John Frederik; Rikardsen, Audun H.; Hedeholm, Rasmus (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-28)
      Traditional tagging techniques are simple and cost-effective, but inferences require recaptures and data on movement/migration are limited to a start and end position at unpredictable intervals. Pop-up satellite archival tags (PSATs) offer other opportunities, as they provide positions at pre-programmed times and collect on-route data, which can be used to describe position, behavior, and habitat ...
    • Value based segmentation : a study of wild fish versus farmed fish consumption in Nha Trang 

      Suneth Jayampathi, R.P.S. (Master thesis; Mastergradsoppgave, 2010-05-17)
      The primary purpose of this study was to identify market segments based on personal values, values and lifestyles, environmental concern, fish welfare concern, ethical concern for fish farming and health involvement. A self-administrated questionnaire was conducted on a convenience sample of 209 Vietnamese consumers. It was designed to investigate consumers’ concern for issues used as segmentation ...
    • Value chain analysis of black tiger shrimp culture in Cox'sBazar District, Bangladesh 

      Quader, Mamunul (Master thesis; Mastergradsoppgave, 2012-05-22)
      This research aimed to explore the value chain of Black tiger shrimp in Cox’sbazar district, Bangladesh. Actors involved in the chain are farmers, wholesalers, commission agents and processors were interviewed by different questionnaires. A total sample size of 48 surveyed households were visited and analyzed for this research. Results showed a map of actors, costs and earnings, employment ...
    • The value chain of white leg shrimp exported to the U.S market in Khanh Hoa province, Vietnam 

      Bui Nguyen Phuc, Thien Chuong (Master thesis; Mastergradsoppgave, 2011-06)
      The research aimed to explore the value chain of frozen white leg shrimp exported to the U.S market from Khanh Hoa province, Vietnam. Three objectives were set up, that is, (1) to identify the activities conducted by different actors in the value chain and the corresponding costs and earnings of those activities, (2) to evaluate the distributions of revenue, cost and profit along the chain, and (3) ...
    • Value co-creation in sustainable tourism: A service-dominant logic approach 

      Font, Xavier; English, Rosa; Gkritzali, Alkmini; Tian, Wen (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-12)
      To mainstream sustainability, we need to understand the value gained from sustainability by users. We apply a user-centred design methodology to develop an agile, iterative, incremental and reflexive process to understand the sustainability value proposition for Lufthansa City Center travel agents. We analyse the failure of sustainability communications within the online platforms used by these ...
    • Value creation and co-creation experiences: an East Asian cultural knowledge framework approach 

      Lee, Young-Sook; Prebensen, Nina Katrine (Chapter; Bokkapittel, 2018)
      This chapter proposes an 'East Asian cultural knowledge framework' based on the main East Asian cultural philosophies and revisits some previous study findings in order to facilitate a deeper understanding of the East Asian tourist behaviours. The proposed framework is expected to inform researchers on, at fundamental level, the tourists' value creation and co-creation and East Asian tourists' ...
    • Value in tourist experiences: How nature-based experiential styles influence value in climbing 

      Vespestad, May Kristin; Lindberg, Frank; Mossberg, Lena (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-27)
      Nature-based adventure experiences constitute a significant segment of the tourism industry and understanding consumers’ conceptualisations of value is crucial. The aim of this study is to understand how the perceived value of the climbing experience differs within the climbing community. Interviews with climbers revealed that multiple aspects of the climbing experience are valued, including efficiency, ...
    • Values, attitudes and intention to consume wild fish versus farmed fish in Nha Trang 

      Nelka Rajani, Pemattuge (Master thesis; Mastergradsoppgave, 2010-05-17)
      The primary purpose of this study was to investigate the consumers’ values and the difference in consumption, attitude and intention to consume wild fish versus farmed fish in Vietnam. Second, it aimed to investigate the relationship between values, attitudes and intention to consume wild versus farmed fish by applying value-attitude-behavior model. The measurement scales used here were adapted from ...
    • Valuing blue carbon changes in the Arctic ocean 

      Armstrong, Claire W.; Foley, Naomi; Slagstad, Dag; Chierici, Melissa; Ellingsen, Ingrid H.; Reigstad, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-25)
      The ocean capacity to store carbon is crucial, and currently absorbs about 25% CO<sub>2</sub> supply to the atmosphere. The ability to store carbon has an economic value, but such estimates are not common for ocean environments, and not yet estimated for the Arctic Ocean. With the severe climatic changes in the Arctic Ocean, impacting sea ice and potentially the vertical carbon transport mechanisms, ...
    • Valuing coastal recreation and the visual intrusion from commercial activities in Arctic Norway 

      Aanesen, Margrethe; Falk-Andersson, Jannike; Vondolia, Godwin Kofi; Borch, Trude; Navrud, Ståle; Tinch, Dugald (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-04)
      The coastal zone in the Arctic is being extensively used for recreational activities. Simultaneously, there is an increasing pressure from commercial activities. We present results from a discrete choice experiment implemented in Arctic Norway, revealing how households in this region make trade-offs between recreational activities and commercial developments in the coastal zone. Our results show ...
    • Valuing High Seas Ecosystem Conservation 

      Bui, Bich Xuân; Armstrong, Claire W.; Ankamah-Yeboah, Isaac; Hynes, Stephen; Needham, Katherine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-16)
      The high seas provide a variety of ecosystem services that benefit society. There have, however, been few attempts to quantify the human welfare impacts of changes to the delivery of these benefits. We assessed the values of several key ecosystem service benefits derived from protecting ecosystems in the high seas of the Flemish Cap through choice experiments conducted in Canada, Norway, and Scotland. ...
    • Valuing the ecosystem service benefits from kelp forest restoration: A choice experiment from Norway 

      Hynes, Stephen; Chen, Wenting; Vondolia, Godwin Kofi; Armstrong, Claire W.; O'Connor, Eamonn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-08)
      Habitat loss and degradation are recognised as the most important causes of species decline and extinction in marine ecosystems. It is also widely recognised that a range of restoration actions are now essential to halt further decline. From a policy perspective, demonstration that restoration activity is in the interest of society is an important goal. In this paper, the welfare impacts of restoring ...
    • Valuing Unfamiliar and Complex Ecosystem Services: The influence of survey mode, knowledge and dishonesty 

      Sandorf, Erlend Dancke (Doctoral thesis; Doktorgradsavhandling, 2016-08-15)
      Increasing demand for valuation of ecosystem services has led stated preference methods to be applied to public goods that are increasingly complex and unfamiliar. Traditionally, stated preference surveys were conducted via mail or face-to-face interviews, but over the past two decades internet panels have been used to a larger extent. As we move away from traditional methods of survey administration ...