Now showing items 871-880 of 886
Creativity in Science - Scientific Essay
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-13)
Modern science is expected to generate new knowledge and understanding. In this scientific essay, I wish to explore the field of creativity in science by contributing a theoretical perspective on creativity and the creative process, which will include exemplifying different factors that promote or inhibit creativity, as well as reflecting on creativity in my own research project. In addition, I ...
On the numerous concepts in invasion biology
(Journal article; Tidsskriftartikkel; Peer reviewed, 2006-01-20)
The study of biological invasions has triggered the production of a diversity of concepts. The terminology has, however, often been applied inconsistently and inaccurately. This article lists and assesses the most commonly used terms and concepts in invasion ecology. In each case the most coherent definition and use is suggested.
Biogenic silica production and diatom dynamics in the Svalbard region during spring
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-06)
Diatoms are generally the dominant contributors to the Arctic Ocean spring bloom, which is a key event in regional food webs in terms of capacity for secondary production and organic matter export. Dissolved silicic acid is an obligate nutrient for diatoms and has been declining in the European Arctic since the early 1990s. The lack of regional silicon cycling information precludes understanding the ...
Functional roles and redundancy of demersal Barents Sea fish: Ecological implications of environmental change
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-21)
When facing environmental change and intensified anthropogenic impact on marine ecosystems, extensive knowledge of how these systems are functioning is required in order to manage them properly. However, in high-latitude ecosystems, where climate change is expected to have substantial ecological impact, the ecosystem functions of biological species have received little attention, partly due to the ...
External damage to trawl-caught Northeast arctic cod (Gadus morhua): Effect of codend design
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-22)
The purpose of this study was to investigate the extent of external damage (gear marks, pressure injuries, ecchymosis and skin abrasion) present on trawl-caught cod (Gadus morhua) and to examine whether the extent of damage could be reduced by introducing changes in the gear. We tested whether changing the 2-panel knotted codend used by the Norwegian trawler fleet operating in the Barents Sea today ...
How vulnerable is the European seafood production to climate warming?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-16)
The main challenge for the European seafood industry is to ensure sustainable production volume while adapting to climate warming. Marine fisheries mainly target 41 species which account for 80% of the seafood production in Europe. The remaining 20% comes from marine and freshwater aquaculture, which harvest mainly 5 and 11 species, respectively. European seafood production volume (2004–2014) recorded ...
Characterization of Microbial Communities in Pilot-Scale Constructed Wetlands with Salicornia for Treatment of Marine Aquaculture Effluents
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-29)
Microorganisms play an essential role in the performance of constructed wetlands (CWs) for wastewater treatment. However, there has been limited discussion on the characteristics of microbial communities in CWs for treatment of effluents from marine recirculating aquaculture systems (RAS). This study is aimed at characterizing the microbial communities of pilot-scale CWs with <i>Salicornia bigelovii</i> ...
Antiviral Responses and Biological Concequences of Piscine orthoreovirus Infection in Salmonid Erythrocytes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-16)
Salmonid red blood cells are the main target cells for <i>Piscine orthoreovirus</i> (PRV). Three genotypes of PRV (PRV-1,2,3) infect Atlantic salmon (<i>Salmo salar</i>), Chinook salmon (<i>Onchorhynchus tshawytscha</i>), Coho salmon (<i>Oncorhynchus kisutch</i>), rainbow trout (<i>Onchorhynchus mykiss</i>) and brown trout (<i>Salmo trutta</i>), and can cause diseases like heart and skeletal muscle ...
Immunological response to Brucella abortus strain 19 vaccination of cattle in a communal area in South Africa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-29)
Brucellosis is of worldwide economic and public health importance. Heifer vaccination with live attenuated <i>Brucella abortus</i> strain 19 (S19) is the cornerstone of control in low- and middle-income countries. Antibody persistence induced by S19 is directly correlated with the number of colony-forming units (CFU) per dose. There are two vaccination methods: a ‘high’ dose (5–8 × 10<sup>10</sup> ...
CpGs Induce Differentiation of Atlantic Salmon Mononuclear Phagocytes Into Cells With Dendritic Morphology and a Proinflammatory Transcriptional Profile but an Exhausted Allostimulatory Activity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-13)
Due to their ability to present foreign antigens and prime naïve T cells, macrophages, and dendritic cells (DCs) are referred to as professional antigen-presenting cells (APCs). Although activated macrophages may function as APCs, these cells are particularly effective at directly engaging pathogens through phagocytosis, and production of antimicrobial compounds. On the other hand, DCs possess superb ...