Fakultet for biovitenskap, fiskeri og økonomi: Nye registreringer
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Global economic drivers in the development of different industrial hubs in the European Arctic
(Research report; Forskningsrapport, 2022-03)This project report discusses global drivers affecting the development of key industries in the European Arctic (EA). Aquaculture is important for littoral states in the North, forestry and mining for northern Scandinavia, and tourism throughout the northern regions in the EA, and all are affected by globalization. Globalization is not a homogeneous, uniform phenomenon, but consists of various global ... -
The COVID-19 pandemic and regional economic resilience in northern Finland, Norway, and Sweden – bouncing back or not?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)The COVID-19 pandemic has been first and foremost a health crisis, but it has also had severe negative impacts on the global economy. It has shaken regional economies, especially labour markets, over the last two years. Arctic regions are no exception. The aim of this article is to analyse the regional economic impacts, as well as the recovery processes, of the COVID19 pandemic in Arctic 5 cities ... -
From Winter to Late Summer in the Northwestern Barents Sea Shelf: Impacts of Seasonal Progression of Sea Ice and Upper Ocean on Nutrient and Phytoplankton Dynamics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-11)Strong seasonality is a key feature of high-latitude systems like the Barents Sea. While the interannual variability and long-term changes of the Barents Sea are well-documented, the seasonal progression of the physical and biological systems is less known, mainly due to poor accessibility of the seasonally ice-covered area in winter and spring. Here, we use an extensive set of physical and biological ... -
Photophysiological responses of bottom sea-ice algae to fjord dynamics and rapid freshening
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-13)Sea ice algae have a broad salinity tolerance but can experience stress during rapid decreases in salinity that occur with seasonal ice melt and during ice sample melt. This study investigated the impact of salinity on the photophysiological responses of bottom-ice algal communities from two Svalbard fjords (Tempelfjorden and Van Mijenfjorden). To further investigate the impact of salinity alone, ... -
Human responses to year-round lighting using Google Trends to investigate seasonality in activity patterns and libido
(Master thesis; Mastergradsoppgave, 2023-11-16)Seasonal rhythms in humans are fascinating but studying them is inherently challenging due to the need for data that covers multiple years. Due to the experimental obstacles, it remains debated whether humans exhibit seasonal fluctuations in aspects such as activity levels and libido. To approach these topics through indirect digital measures, this thesis used multi-year data from Google Trends ... -
Reindeer diseases associated with supplementary feeding in Norway and Sweden - A questionnaire-based survey
(Master thesis; Mastergradsoppgave, 2021-11-15)Climatic and anthropogenic factors are increasingly affecting reindeer husbandry in Norway and Sweden. The potential health risks associated with a warming climate, and the necessity to avoid starvation by providing supplementary feed to semi-domesticated reindeer, need to be explored and identified. A questionnaire-based survey among reindeer herders was conducted, containing questions about the ... -
Thermal properties of arctic fox fur and the effect of fur lice infestation.
(Master thesis; Mastergradsoppgave, 2023-11-15)In 2019, a new species of sucking louse was observed in arctic foxes (Vulpes lagopus) on Svalbard and Northern Canada. Abnormal patterns of fur loss, inconsistent with normal moult, were observed across the neck, shoulders and back, raising concerns as to how the animals would cope with damaged fur during the cold Arctic winter. This study investigates the impact of these lice on Svalbard arctic ... -
Assessing net primary production in the northwestern Barents Sea using in situ, remote sensing and modelling approaches
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-24)The northwestern Barents Sea (NW-BS) is a highly productive region within the transitional zones of an Atlantic to Arctic-dominated marine ecosystem. The steep latitudinal gradients in sea ice concentration, Atlantic and Arctic Water, offer an opportunity to test hypotheses on physical drivers of spatial and temporal variability of net primary production (NPP). However, quantifying NPP in such a ... -
Impact of autopolyploidy on leaf structure and photosynthesis in Saxifraga oppositifolia L.
(Master thesis; Mastergradsoppgave, 2023-12-01)Polyploidization can be a rapid path to speciation and is considered an important evolutionary mechanism. Some predict that all plants have undergone a polyploidization event during their evolutionary history, and the frequency of polyploid species increases with latitude. The Arctic-Alpine Saxifraga oppositifolia, an autopolyploid, has two polyploids that have successfully established themselves ... -
Seasonal Variations in Vertical Flux of particulate matter and composition in the Northern Barents Sea
(Master thesis; Mastergradsoppgave, 2023-11-15)The Barents Sea is an inflow shelf sea in the Arctic Ocean which experiences climate change consequently reduction in the sea ice extent thereby significantly impacting its ecological importance. This study investigates seasonal variations in the vertical flux of particulate matter including both particulate organic matter (chl a) and particulate inorganic matterin the form of CaCO3 contributed by ... -
Anatomical distribution of scavenger endothelial cells in bony fishes (Osteichthyes)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-28)The scavenger endothelial cells (SECs) of vertebrates are an important class of endocytic cells responsible for clearance of foreign and physiological waste macromolecules, partitioning in the immune system, functioning as a cellular powerplant by producing high energy metabolites like lactate and acetate. All animal phyla possess SECs, but the tissue localization of SECs has only been investigated ... -
The metabolic roles of astrocytes and neurons in the diving brain A study of the mitochondrial distribution in the brain of the hooded seal (Cystophora cristata)
(Master thesis; Mastergradsoppgave, 2023-11-15)The brain is highly dependent on oxygen for its metabolism and, in most mammals, major brain dysfunction occurs already within minutes of insufficient oxygen supply (hypoxia). Oxygen is the final electron acceptor in the electron transport system that drives the production of ATP through oxidative phosphorylation in the mitochondria. The rate at which oxidative phosphorylation produces ATP is dependent ... -
Nutritious and delicious? A non-invasive study of food plant choices by Svalbard reindeer in Summer and late Autumn
(Master thesis; Mastergradsoppgave, 2023-12-05)Seasonality affects growing patterns of vegetation and habitat use by herbivores. Short growing seasons make plants grow quickly through phenological stages which alters their nutrient levels and thus habitat use of herbivores that depend on energy assimilation in summer. Selective foraging that increases intake of high-quality forage can be highly advantageous and is usually a trade-off between ... -
Drivers of mercury accumulation over the ontogeny of perch (Perca fluviatilis) in the subarctic Pasvik watercourse
(Master thesis; Mastergradsoppgave, 2023-11-15)Understanding drivers of mercury (Hg) accumulation in freshwater food webs is vital due to its ability to accumulate in organisms and magnify in food webs to potent levels, potentially impacting wildlife and human health. This is of particular concern in regions where fish serve as an important food source. This study explores drivers of Hg accumulation in European perch (Perca fluviatilis) across ... -
Long-Term Effects on Somatic Growth, Life History Traits and Population Biology of Arctic Charr (Salvelinus alpinus) Following the Fish Culling Experiment in Takvatn
(Master thesis; Mastergradsoppgave, 2023-11-14)Stunting in fish populations is a special case of density-dependent growth characterized by old slow-growing individuals with low recreational and resource use value. The phenomenon is commonly observed in lacustrine populations of Arctic charr (Salvelinus alpinus) in temperate regions. In Takvatn, a subarctic lake in northern Norway, stunted growth of Arctic charr was attributed to food shortage ... -
Drivers of an unexpected unimodal vertical pattern in size distribution of intertidal blue mussels (Mytilus spp.)
(Master thesis; Mastergradsoppgave, 2023-11-14)Blue mussels (Mytilus spp.) are important ecosystem bioengineers and provide numerous of ecosystem services. They are found worldwide, but face a global population decline for unclear reasons in many regions. A pilot study in the subarctic rocky intertidal shore in Northern Norway revealed an unexpected unimodal pattern in the body size of blue mussels along a vertical transect from low to high ... -
How moral disengagement links to destination marketing organisations’ moral muteness in their sustainability communications
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-13)If destination marketing organisations (DMOs) are to contribute to the United Nations Sustainable Development Goals, they have a moral responsibility to encourage the development of more sustainable tourism, to promote this to consumers and engage them to behave more sustainably. However, we know little about how these DMOs frame the sustainability discourses of their destinations or how they urge ... -
Social Farmers’ Networking for Inclusive Tourism
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)Social entrepreneurship plays a key role in making tourism an inclusive activity. Literature on the topic is increasing but needs to pay more attention to collaboration, which is crucial for social enterprises. To overcome this gap, the research focuses on the impact that social entrepreneurs’ drivers and barriers towards collaboration might have on providing decent work in rural tourism. The research ... -
The structure of Norwegian seafood trade
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-30)While seafood is a highly traded commodity, lack of data has largely prevented examination of the firms and industries that are conducting the actual transactions. In this paper we use highly disaggregated data to provide an overview of the seafood exports from Norway, the world’s 2nd largest seafood exporting country, and a country where fisheries as well as aquaculture are important industries. ... -
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-23)The optical chain and logger (OptiCAL) is an autonomous ice-tethered observatory equipped with multiple light sensors for mapping the variation of light with depth. We describe the instrument and present an ensemble calibration for downwelling irradiance E<sub>PAR</sub> in [µmolm<sup>−2</sup>s<sup>−1</sup>]. Results from a long-term deployment in the Arctic Ocean demonstrate that the OptiCAL can ...