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norskFakultet for biovitenskap, fiskeri og økonomi
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Handelshøgskolen ved UiT [1198]
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Innate Immunity
(Chapter; Bokkapittel, 2022-03-13)Research on the innate immunity has accelerated over the last decades. The main reason for this has been the discovery of receptors recognizing danger molecules from pathogens. This has been facilitated through genome and transcriptome sequencing of different fish species. Also, endogenous host molecules from sterile physiological insults may also bind to certain receptors and induce immunological ... -
Current Issues in Method and Practice Cross-community enactive research: a relational practice-based approach to academic engagement
(Journal article; Tidsskriftartikkel, 2023-03-13)To respond to the call for broader ways to understand academic engagement in sustainable tourism, I conceptualized a relational practice-based approach, termed cross-community enactive research. Relying on central ideas from the enactive research approach by entrepreneurship scholar Bengt Johannisson, which draws on autoethnography and action research, and the communities of practice theory by ... -
The conflicting effects of self-construal on impulsive buying tendency toward unhealthy food: the moderating role of future time perspective
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-03)This study extends the understanding of if and how consumer impulse buying tendency toward unhealthy food can be explained by the conflicting and interactive mechanisms of individual differences in self-construal and future time perspectives. Based on a survey sample of 439 Vietnamese consumers, this study adopts a structural equation modelling approach for second-order constructs and moderating ... -
Global patterns and drivers of ecosystem functioning in rivers and riparian zones
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-09)River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater ... -
Chronological changes in soil biogeochemical properties of the glacier foreland of Midtre Lovénbreen, Svalbard, attributed to soil-forming factors
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-21)Glacier forelands provide an excellent opportunity to investigate vegetation succession and soil development along the chronosequence; however, there are few studies on soil biogeochemical changes from environmental factors, aside from time. This study aimed to investigate soil development and biogeochemical changes in the glacier foreland of Midtre Lov ́enbreen, Svalbard, by considering various ... -
Peptides from the Sea Anemone Metridium senile with Modified Inhibitor Cystine Knot (ICK) Fold Inhibit Nicotinic Acetylcholine Receptors
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-30)Nicotinic acetylcholine receptors (nAChRs) play an important role in the functioning of the central and peripheral nervous systems, and other organs of living creatures. There are several subtypes of nAChRs, and almost all of them are considered as pharmacological targets in different pathological states. The crude venom of the sea anemone Metridium senile showed the ability to interact with ... -
Analyzing motivating functions of consumer behavior: Evidence from attention and neural responses to choices and consumption
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-09)Academia and business have shown an increased interest in using neurophysiological methods, such as eye-tracking and electroencephalography (EEG), to assess consumer motivation. The current research contributes to this literature by verifying whether these methods can predict the effects of antecedent events as motivating functions of attention, neural responses, choice, and consumption. Antecedent ... -
Small tourism providers' stories about sustainability
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-22)This study asks how small tourism providers use stories to make sense of their world in terms of sustainability. It elaborates on sense-making and story concepts and their relevance to sustainability; adopts an enactive research approach and multiple methods (participation, journaling, interviews, document analysis, content analysis); and explores five providers’ stories about themselves, the ... -
Nanofiltration of intake water in RAS: Effect on fish performance, health and welfare
(Research report; Forskningsrapport, 2022)The experiment tested the effect of nanomembrane filtration in RAS on the salmon's physiology, welfare and growth. A specially designed membrane was used to remove sulphate from seawater and to adjust salinity from 32 to 12 ‰. A RAS where salinity was adjusted to 12 ‰ by mixing raw seawater and freshwater was used as control. The fish were kept in the two systems for 10 weeks before being ... -
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-04)Vegetation indices are corner stones in vegetation monitoring. However, previous field studies on lichens and NDVI have been based on passive sensors. Active handheld sensors, with their own light sources, enables high- precision monitoring under variable ambient conditions. We investigated the use of handheld sensor NDVI for monitoring pale lichen cover across three study sites from boreal heathlands ... -
Sub-arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-25)Arctic ecosystems are increasingly exposed to extreme climatic events throughout the year, which can affect species performance. Cryptogams (bryophytes and lichens) provide important ecosystem services in polar ecosystems but may be physiologically affected or killed by extreme events. Through field and laboratory manipulations, we compared physiological responses of seven dominant sub-Arctic ... -
Genome-edited salmon: a sustainable and socially acceptable solution to aquaculture?
(Doctoral thesis; Doktorgradsavhandling, 2023-03-24)The Norwegian Atlantic salmon farming industry is halted by challenges related to environmental impact and fish welfare. Some of the issues have been suggested solved by the use of novel genome editing technologies, such as CRISPR, which allows for targeted mutations and speeding up fish breeding. For successful introduction, applications of the technology need to be socially acceptable and contribute ... -
Hard talk, costly walk: The evolution of a soft budget constraint syndrome in a football club at the periphery of Europe
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-07)A football club is exposed to a soft budget constraint (SBC) syndrome if it still survives after finding it impossible to break even financially in the long run. This in-depth case study presents a historical analysis of the evolution of an SBC syndrome in a top-tier Arctic football club over 30 years using public archive data. In oral speeches, strategy documents, and other official situations, ... -
Ghost fishing gear and their effect on ecosystem services – Identification and knowledge gaps
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-09)Abandoned, lost, and discarded fishing gear (ALDFG) is claimed to be a global problem with impacts on marine animals and ecosystems, posing considerable ecological and socioeconomic challenges. Nonetheless, insufficient understanding regarding how marine ecosystem services are affected by ALDFG creates a knowledge gap that challenges a holistic estimation of the long-term economic impacts of using ... -
Raising offspring increases ageing: Differences in senescence among three populations of a long-lived seabird, the Atlantic puffin
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-12)1. Actuarial senescence, the decline of survival with age, is well documented in the wild. Rates of senescence vary widely between taxa, to some extent also between sexes, with the fastest life histories showing the highest rates of senescence. Few studies have investigated differences in senescence among populations of the same species, although such variation is expected from population-level ... -
A systematic and critical review of leadership styles in contemporary hospitality: a roadmap and a call for future research
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-02)Purpose – The purpose of this paper is to provide an overview of leadership styles in the hospitality industry. It also demonstrates theories used in hospitality leadership styles research, identifies the main outcomes and highlights gaps for future research.<p> <p>Design/methodology/approach – This paper presents a comprehensive review of the 79 articles on leadership styles in the hospitality ... -
Sustainable practices in hospitality pre and amid COVID-19 pandemic: Looking back for moving forward post-COVID-19
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-15)Sustainability issues are becoming increasingly important in the hospitality sector during crisis times such as COVID-19 and post-pandemic. In order to synthesize the literature on sustainable practices in hospitality, we developed a systematic literature to illustrate the dominant sustainable practices in hospitality. We present a comprehensive review of the 48 articles on sustainable practices in ... -
Trends in mussel cover, density and size at exploited and unexploited intertidal reefs in eastern South Africa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-20)The brown mussel Perna perna is the dominant indigenous mussel along the east coast of South Africa, where it is harvested by recreational and subsistence fishers. High fishing pressure near urban areas led to declining abundance and consequently to the closure of some reefs to fishing in 1998. We estimated trends in mussel population dynamics at exploited and unexploited sites, along fixed transects, ... -
Flashing lights affect the photophysiology and expression of carotenoid and lipid synthesis genes in Nannochloropsis gaditana
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-20)Nannochloropsis gaditana is a promising microalga for biotechnology. One of the strategies to stimulate its full potential in metabolite production is exposure to flashing lights. Here, we report how N. gaditana adapts to different flashing light regimes (5, 50, and 500 Hz) by changing its cellular physiology and the relative expression of genes related to critical cellular functions. We analyzed ... -
Population dynamics and production of small, marine copepods in highly seasonal Arctic and sub-Arctic environments
(Doctoral thesis; Doktorgradsavhandling, 2023-03-17)Small copepods (≤ 2 mm) are highly abundant mesozooplankton in Arctic and sub-Arctic marine ecosystems. However, small copepods are generally underestimated in zooplankton studies because of the use of large-meshed nets (≥ 180-µm mesh size) and are relatively poorly studied compared to large copepods. This thesis investigates the egg hatching rates, population dynamics and production rates of three ...
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