Now showing items 1-10 of 108
Area use and movement patterns of wild and escaped farmed Atlantic salmon before and during spawning in a large Norwegian river
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-02-02)
We compared the within-river movements and distribution of wild and escaped farmed Atlantic salmon Salmo salar before and during spawning in the Namsen river system of Central Norway. A total of 74 wild and 43 escaped farmed salmon were captured at sea, tagged with radio transmitters and released. Based on our examinations, most, if not all salmon (farmed and wild) entering the River Namsen were ...
Brucella pinnipedialis in hooded seal (Cystophora cristata) primary epithelial cells
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-25)
Background: Marine Brucella spp. have been isolated from numerous pinniped and cetacean species, but pathological findings in association with infection with Brucella pinnipedialis in pinnipeds have been sparse. The capacity of brucellae to survive and replicate within host macrophages underlies their important ability to produce chronic infections, but previous work has shown that B. pinnipedialis ...
Fiskeridirektøren bør flyttes til Tromsø
(Journal article; Tidsskriftartikkel, 2016-11-17)
Fiskeridirektøren og det tilknyttede reguleringsutvalget og forvaltningsorganene flyttes fra Bergen til Tromsø, i det minste den delen som angår forvaltningen av ressursene utenfor Nord Norge, foreslår artikkelforfatterne.
Good-bye to tropical alpine plant giants under warmer climates? Loss of range and genetic diversity in Lobelia rhynchopetalum
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-25)
The main aim of this paper is to address consequences of climate warming on loss of habitat and genetic diversity in the enigmatic tropical alpine giant rosette plants using the Ethiopian endemic Lobelia rhynchopetalum as a model. We modeled the habitat suitability of L. rhynchopetalum and assessed how its range is affected under two climate models and four emission scenarios. We used three ...
Methyl jasmonate: An alternative for improving the quality and health properties of fresh fruits
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-31)
Methyl jasmonate (MeJA) is a plant growth regulator belonging to the jasmonate family. It plays an important role as a possible airborne signaling molecule mediating intra- and inter-plant communications and modulating plant defense responses, including antioxidant systems. Most assessments of this compound have dealt with post-harvest fruit applications, demonstrating induced plant resistance ...
When the brain goes diving: transcriptome analysis reveals a reduced aerobic energy metabolism and increased stress proteins in the seal brain
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-09)
<b>Background: </b>During long dives, the brain of whales and seals experiences a reduced supply of oxygen (hypoxia). The brain neurons of the hooded seal (Cystophora cristata) are more tolerant towards low-oxygen conditions than those of mice, and also better survive other hypoxia-related stress conditions like a reduction in glucose supply and high concentrations of lactate. Little is known ...
From individuals to population cycles: the role of extrinsic and intrinsic factors in rodent populations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-28)
Rodent population cycles have fascinated scientists for a long time. Among various hypotheses, an interaction of an extrinsic factor (predation) with intrinsic factors (e.g., sociality and dispersal) was suggested to lead to the generation of population cycles. Here, we tested this hypothesis with an individual-based model fully parameterized with an exceptionally rich empirical database on vole ...
Where are they now? – A case study of the impact of international travel support for early career Arctic researchers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09)
Supporting and training the next generation of researchers is crucial to continuous knowledge and leadership in Arctic research. An increasing number of Arctic organizations have developed initiatives to provide travel support for Early Career Researchers (ECRs) to participate in workshops, conferences and meetings and to network with internationally renowned scientific leaders. However, there has ...
In vivo exposure to northern diatoms arrests sea urchin embryonic development
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01)
There are numerous reports indicating that marine diatoms may act harmful to early developmental stages of invertebrates. It is believed that the compounds responsible for these detrimental effects are oxylipins resulting from oxidized polyunsaturated fatty acids, and that they may function as grazing deterrents. Most studies reporting these effects have exposed test organisms to diatom extracts or ...
Biological effects of marine diesel oil exposure in red king crab (Paralithodes camtschaticus) assessed through a water and foodborne exposure experiment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-30)
Shipping activities are expected to increase in the Arctic Seas. Today, the majority of vessels are using marine diesel oil (MDO) as propulsion fuel. However, there is a general lack of knowledge of how cold-water marine species respond to acute exposures to MDO. Arctic red king crabs (Paralithodes camtschaticus) were exposed to mechanically dispersed MDO in a flow-through exposure system for one ...