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norskFakultet for biovitenskap, fiskeri og økonomi
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Hvordan få flere til å bli igjen? En studie om hvordan man kan motivere flere unge til å bli igjen på bygda for å arbeide
(Master thesis; Mastergradsoppgave, 2018-05-31)Fraflytting og sentralisering er ikke ukjente fenomener, og som vi vet er det enormt mange unge som flytter fra bygda til byen når de er ferdig med videregående skole. Formålet med denne studien var derfor å se på hva som kunne motivere unge til å bli igjen på bygda for å arbeide, i stedet for å flytte til storbyen. Valg av case falt på Sortland, en bygd i Nordland hvor handel står som ... -
Antioxidant defenses in polar cod (Boreogadus saida) and responsiveness toward dietary crude oil exposure
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-13)Increasing anthropogenic activities in the Arctic pose the risk for accidental oil spills but our knowledge of ecotoxicological effects is still limited for Arctic organisms. This study aimed to provide insights in baseline levels of antioxidants in polar cod (<i>Boreogadus saida</i>) from different Arctic locations and investigate the susceptibility of this species to oxidative stress during a 32 ... -
Isolation and Synthesis of Pulmonarins A and B, Acetylcholinesterase Inhibitors from the Colonial Ascidian Synoicum pulmonaria
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-14)Pulmonarins A and B are two new dibrominated marine acetylcholinesterase inhibitors that were isolated and characterized from the sub-Arctic ascidian <i>Synoicum pulmonaria</i> collected off the Norwegian coast. The structures of natural pulmonarins A and B were tentatively elucidated by spectroscopic methods and later verified by comparison with synthetically prepared material. Both pulmonarins A ... -
Assessing the added value of the recent declaration on unregulated fishing for sustainable governance of the central Arctic Ocean
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-21)The ‘Declaration concerning the prevention of unregulated high seas fishing in the central Arctic Ocean’ signed by the Arctic 5 nations, limits unregulated high seas fishing in the central part of the Arctic Ocean, and holds potential social, economic and political impacts for numerous stakeholders. In this paper, the four Interim Measures in the Declaration are discussed and what value these measures ... -
Peptide from sea anemone metridium senile affects transient receptor potential ankyrin-repeat 1 (TRPA1) function and produces analgesic effect
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-11)The Transient Receptor Potential Ankyrin-repeat 1 (TRPA1) is an important player in pain and inflammatory pathways. It is a promising target for novel drugs development for treatment of a number of pathological states. A novel peptide producing significant potentiating effect (up to ~90%) on AITC- and diclofenac-induced currents of TRPA1 was isolated from the venom of sea anemone <i>Metridium ... -
Live-storage of wild mature cod (Gadus morhua L.) without feed supply. Effects on biological and quality properties
(Doctoral thesis; Doktorgradsavhandling, 2018-09-28)The overall aim of this work was to obtain better understanding of how live-storage without feeding affects wild mature Atlantic cod (Gadus morhua L.) and quality of products obtained from such cod. Atlantic cod were live-stored without feeding for 82 days. First, gender-specific weight changes in both whole and gutted fish, as well as certain organs were studied (Paper I). Next, the effects of feed ... -
Keep on fighting: The dynamics of head starts in all-pay auctions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-22)We investigate a model of a series of contests in which a contestant's past and present success gives a head start over a rival in the future. How this advantage from winning affects contestants' efforts, whether the laggard gives up or keeps on fighting, and how the head start develops over time, are key issues. We find that the expected effort of the laggard will always be higher than the rival ... -
Can morphology reliably distinguish between the copepods Calanus finmarchicus and C. glacialis, or is DNA the only way?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-10)Copepods of the genus <i>Calanus</i> play a key role in marine food webs as consumers of primary producers and as prey for many commercially important marine species. Within the genus, <i>Calanus glacialis</i> and <i>Calanus finmarchicus</i> are considered indicator species for Arctic and Atlantic waters, respectively, and changes in their distributions are frequently used as a tool to track climate ... -
ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO2, water, and energy fluxes on daily to annual scales
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-05)Peatlands store substantial amounts of carbon and are vulnerable to climate change. We present a modified version of the Organising Carbon and Hydrology In Dynamic Ecosystems (ORCHIDEE) land surface model for simulating the hydrology, surface energy, and CO<sub>2</sub> fluxes of peatlands on daily to annual timescales. The model includes a separate soil tile in each 0.5° grid cell, defined from a ... -
Marine depth use of sea trout Salmo trutta in fjord areas of Central Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-15)The vertical behaviour of 44 veteran sea trout <i>Salmo trutta</i> (275–580 mm) in different marine fjord habitats (estuary, pelagic, near shore with and without steep cliffs) was documented during May–February by acoustic telemetry. The swimming depth of <i>S. trutta</i> was influenced by habitat, time of day (day v. night), season, seawater temperature and the body length at the time of tagging. ... -
The reciprocal aspect of the experience value: tourists and residents celebrating weddings in the rural village of Petritoli (Italy)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-28)The purpose of this study is to focus on the experience value of tourism in those cases where tourists and residents experience a closer interaction with each other. The aim is to contribute to a better understanding of the concept of experience value in terms of reciprocality and relations-building. Drawing upon central concepts from the co-creation literature, tourist–resident interactions ... -
Business Models and Sustainability in Nature Tourism: A Systematic Review of the Literature
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-10)This study explores the business model literature within nature tourism, focuses on its sustainability-related aspects, and adopts some of the results of the literature review by Reinhold et al. The research questions concern how scholars use and operationalize the business model concept in the context of nature tourism, and to what extent sustainability-related aspects are included and discussed. ... -
Women's entrepreneurship policy: a 13 nation cross-country comparison
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)<p><i>Purpose</i>: Government attention to women’s entrepreneurship has increased in the past two decades; however, there are few cross-cultural studies to inform policy development. This paper aims to draw on gender and institutional theory to report on the status of female-focused small and medium-sized enterprises/entrepreneurship policies and to ask how – and to what extent – do women’s ... -
Effects of water level regulation in alpine hydropower reservoirs: an ecosystem perspective with a special emphasis on fish
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-04)Sustainable development of hydropower demands a holistic view of potential impacts of water level regulation (WLR) on reservoir ecosystems. Most environmental studies of hydropower have focused on rivers, whereas environmental effects of hydropower operations on reservoirs are less well understood. Here, we synthesize knowledge on how WLR from hydropower affects alpine lake ecosystems and highlight ... -
Evoking premiumness: How color-product congruency influences premium evaluations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-13)Green is commonly used in marketing to evoke utilitarian and environmental cues, whereas red is regularly found on food logos to induce arousal and excitement. This paper investigates how these colors may contribute to consumer evaluations of premiumness through congruence and incongruence between the marketing message and color on product packages. The literature suggests that, although congruence ... -
Scientific opinion on chronic wasting disease (II)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-17)The European Commission asked EFSA for a scientific opinion on chronic wasting disease in two parts. Part one, on surveillance, animal health risk‐based measures and public health risks, was published in January 2017. This opinion (part two) addresses the remaining Terms of Reference, namely, ‘are the conclusions and recommendations in the EFSA opinion of June 2004 on diagnostic methods for chronic ... -
A framework for results-based management in fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)We present a framework for results-based management (RBM) of commercial fisheries. The core idea of RBM is to reduce micromanagement by delegating management responsibility to resource users. The RBM framework represents an industrial organization approach to co-management and comprises three defining processes, conducted by three independent “agents”: (i) an “authority” defines specific and ... -
Ocean migration of Atlantic salmon
(Doctoral thesis; Doktorgradsavhandling, 2018-09-14)Atlantic salmon is experiencing population declines throughout most parts of its distribution range, with changes in the marine environment considered important contributors to the overall decline. Most of the current knowledge about Atlantic salmon’s ocean distribution originates from mark-recapture and genetic studies associated with high-sea fisheries and sampling surveys, and therefore, little ... -
Genetic fingerprinting of salmon louse (Lepeophtheirus salmonis) populations in the North-East Atlantic using a random forest classication approach
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-19)Caligid sea lice represent a significant threat to salmonid aquaculture worldwide. Population genetic analyses have consistently shown minimal population genetic structure in North Atlantic <i>Lepeophtheirus salmonis</i>, frustrating efforts to track louse populations and improve targeted control measures. The aim of this study was to test the power of reduced representation library sequencing ... -
Area protection may reduce salmon louse infection risk to wild salmonids
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011-05-30)ABSTRACT: Salmon louse <i>Lepeophtheirus salmonis</i> Krøyer infection levels in both wild sea trout <i>Salmo trutta</i> L. and sentinel Atlantic salmon <i>Salmo salar</i> L. smolts were investigated inside and outside a temporary protected zone with limits on fish farming in the intensively farmed Romsdalsfjord system. Wild sea trout outside the protected zone had higher prevalence and significantly ...
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