Fakultet for biovitenskap, fiskeri og økonomi: Nye registreringer
Viser treff 1201-1220 av 5180
-
Arctic deep-sea benthos: biodiversity, biological traits, and food webs
(Doctoral thesis; Doktorgradsavhandling, 2022-06-24)Understanding Arctic deep-sea ecosystem structure and functioning is an urgent task because ongoing sea-ice reduction modifies and opens up these regions for resource exploitation. This thesis aims to increase knowledge on epibenthos in the Chukchi Borderland (deep Arctic Ocean). Paper I documents low epifaunal densities and biomass, a total of 152 taxa, and dominance of Echinodermata, Arthropoda ... -
Highly Productive Ice Algal Mats in Arctic Melt Ponds: Primary Production and Carbon Turnover
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-12)Arctic summer sea ice extent is decreasing and thinning, forming melt ponds that cover more than 50% of the sea ice area during the peak of the melting season. Despite of this, ice algal communities in melt ponds are understudied and so are their contribution to the Arctic Ocean primary production and carbon turnover. While melt ponds have been considered as low productive, recent studies suggest ... -
Hvilke forventninger har ansatte til sine ledere? En undersøkelse av lederforventninger blant ansatte i Åkerblå Group AS
(Master thesis; Mastergradsoppgave, 2021-06-01)I oppgaven undersøker vi hvilke forventninger ansatte i Åkerblå Group har til sine ledere. Vi skiller de ansatte på alder og kjønn, og ser etter likheter og forskjeller mellom disse to gruppene. Alder skilles mellom 18 og 40 år og 41 år eller eldre. Forskningsdesignet er kvantitativt og vi har benyttet oss av et eksisterende og godt utprøvd spørreskjema, LBDQ - Leadership Behaviour Description ... -
Utprøving av en moderne strategimetode - Scenarioer i havbruksnæringen som strategisk beslutningsstøtte for Grovfjord Mek. Verksted
(Master thesis; Mastergradsoppgave, 2017-06-01)Oppgaven gir en kort teoretisk introduksjon til begrepene strategisk planlegging, strategisk beslutning og scenarioplanlegging. Kvaliteten på beslutninger er sterkt knyttet til grad av bevissthet, rasjonalitet og kunnskap. En god strategisk beslutning er en beslutning som bidrar til å oppnå strategiske mål. For å fatte en god strategisk beslutning må beslutningstaker være bevisst på hvilke valg som ... -
Progress in fish gastrointestinal microbiota research
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-02)The gastrointestinal (GI) microbiota of vertebrates plays critical roles in nutrition, development, immunity and resistance against invasive pathogens. In the past decade, research of the GI microbiota of mammals has drastically increased our knowledge on the microbiota and their relationship with health and disease. However, our understanding of fish intestinal microbiota is limited. This ... -
Fauna crime: elucidating the potential source and introduction history of European smelt (Osmerus eperlanus L.) into Lake Storsjøen, Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-05-01)The ability to accurately determine the original source of invading species offers several powerful applications in invasive species ecology and management and may enable important information on the invading species in its native habitat. Lake Storsjøen in South-Central Norway was recently found to have been subjected to an illegal translocation of the European smelt (Osmerus eperlanus). The ... -
Round-trip migration and energy budget of a breeding female humpback whale in the Northeast Atlantic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-27)In the northern hemisphere, humpback whales (<i>Megaptera novaeangliae</i>) typically migrate between summer/autumn feeding grounds at high latitudes, and specific winter/spring breeding grounds at low latitudes. Northeast Atlantic (NEA) humpback whales for instance forage in the Barents Sea and breed either in the West Indies, or the Cape Verde Islands, undertaking the longest recorded mammalian ... -
Antimicrobial peptides from the Arctic ascidian Synoicum turgens
(Doctoral thesis; Doktorgradsavhandling, 2022-06-17)The rise in frequency of antibiotic resistant pathogenic bacteria makes the need for new treatment options for previously curable bacterial infections ever more important. In the process of discovering and developing antibacterial agents, one powerful approach has been borrowing wisdom from nature. Antimicrobial peptides (AMPs) are critical components of the innate immune systems found in almost all ... -
Oceanic drivers of juvenile sea turtle strandings in the UK.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-05)Juvenile sea turtles can disperse thousands of kilometers from nesting beaches to oceanic development habitats, aided by ocean currents. In the North Atlantic, turtles dispersing from American beaches risk being advected out of warm nursery grounds in the North Atlantic Gyre into lethally cold northern European waters (e.g. around the UK). We used an ocean model simulation to compare simulated ... -
The teleost polymeric Ig receptor counterpart in ballan wrasse (Labrus bergylta) differs from pIgR in higher vertebrates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-13)As mucosal barriers in fish are the main sites where pathogens are encountered, mucosal immunity is crucial to avoid infection in the aquatic environment. In teleost fish, immunoglobulins are present in gut, gill and skin mucus, although not in the same amounts as in higher vertebrates. In mammals, the poly-Ig receptor (pIgR) is synthesized in epithelial cells and mediates the active transport ... -
Leadership aiming at innovation: suggesting and discussing four roles of an innovation leader
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-27)Organizations often experience problems and challenges due to the development of rigid bureaucratic rules and procedures, which may represent obstacles to creativity and innovation. In a global knowledge economy, innovation is an important competitive parameter. Consequently, anything that may stimulate innovation in an organization’s creative energy fields is valuable. This paper addresses one ... -
Living on the dark side? Investigations into under-ice light climate and sympagic amphipods
(Doctoral thesis; Doktorgradsavhandling, 2022-06-10)The manuscripts of the dissertation presented here encompass several aspects of adaptations in ice-associated amphipods, focussing mainly on their ability to cope with increased light levels, including the ultraviolet radiation (UVR), under thinner or more dispersed sea ice. A decrease in multi-year ice (MYI) in the Arctic, and a concurrent reduction in stable habitat for ice-associated species, is ... -
Protection of Atlantic salmon against virus infection by intramuscular injection of IFNc expression plasmid
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-07-02)n this work we have tested the in vivo antiviral activity of type I interferons (IFNs) in Atlantic salmon by injecting presmolts intramuscularly (i.m.) with plasmids encoding IFNa1, IFNb or IFNc under the control of a CMV promoter, and measured expression of antiviral genes in organs and protection against infection with infectious salmon anemia virus (ISAV)infection. Allthree IFN plasmids induced ... -
Sea ice dependence in Arctic marine organisms: life cycles, resource use, and trophic linkages
(Doctoral thesis; Doktorgradsavhandling, 2022-06-01)Climate warming in the Arctic has resulted in widespread changes in the physical oceanographic characteristics of the Arctic Ocean. One particularly visible change is the loss of sea ice both within the Arctic Ocean and in the surrounding shelf seas. Compared to the other shelf seas, the Barents Sea has experienced the largest declines in sea ice extent, with much of this loss occurring during winter. ... -
Modeling the "microbial chassis effect" on the performance of a genetic switch
(Master thesis; Mastergradsoppgave, 2022-03-21)Escherichia coli is one of the most established bacterial hosts for genetic devices, partially due to the available knowledge and tools for ease of manipulation. However, there is an incentive to increase the current number of available recipients. For instance, marine bacteria are being recognized for their potential as microbial "chassis" due to their rich genetic and metabolic diversity. With ... -
Carbon Footprint and Nutrient Density of Underutilized Norwegian Marine Resources
(Master thesis; Mastergradsoppgave, 2021-05-21)Both nationally and internationally, there is a rising ambition to reduce carbon footprint to fight climate change. However, climate change should not be seen as a solitary challenge as the human population has more than tripled since the 1950ths. We are therefore moving towards the inevitable crossroad where the food needed to sustain humanity and the traditional utilized resources we have ... -
Trade volume affects bitcoin energy consumption and carbon footprint
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-16)The environmental sustainability of bitcoin is making waves in the empirical literature, yet, no study has thus far examined the financial determinants of bitcoin energy consumption and carbon footprint. Here, we use novel estimation methods comprising dynamic ARDL simulations and general-to-specific VAR to examine steady-state effects, cumulative impulse-response, and counterfactual shocks of bitcoin ... -
Divergent functional traits in three sympatric Arctic charr Salvelinus alpinus morphs are not coupled with the age of the lineage divergence
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-24)Three genetically discrete morphs of Arctic charr in Loch Rannoch, Scotland originated from a recent divergence within the lake (in situ) (piscivore and benthivore morphs) and from secondary contact of two older lineages (ex situ; a planktivore–piscivore/ benthivore divergence). To test if the expression of traits with strong functional roles was linked to the age of the divergence, fin and ... -
The use of stated preferences and bio-economic modeling in marine ecosystem service management: Case studies from Arctic Norway
(Doctoral thesis; Doktorgradsavhandling, 2022-06-09)<p>Regarding the growing population and escalated development on the coasts, the environmental policymakers often face the dilemma of exploiting or protecting marine and coastal ecosystem services (ES). Therefore, the non-market valuation has become an essential instrument for supporting policymakers in eliciting preferences and welfare estimates regarding various ES, which further feed into the ... -
Get out of the BAG! Silos in AI Ethics Education: Unsupervised Topic Modeling Analysis of Global AI Curricula
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-26)The domain of Artificial Intelligence (AI) ethics is not new, with discussions going back at least 40 years. Teaching the principles and requirements of ethical AI to students is considered an essential part of this domain, with an increasing number of technical AI courses taught at several higher-education institutions around the globe including content related to ethics. By using Latent Dirichlet ...