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Th17 master transcription factors RORα and RORγ regulate the expression of IL-17C, IL-17D and IL-17F in Cynoglossus semilaevis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-10)
The RAR-related orphan receptors (RORs) are members of the nuclear receptor family of intracellular transcription factors. In this study, we examined the regulatory properties of RORα (CsRORα) and RORγ (CsRORγ) in tongue sole (Cynoglossus semilaevis). CsRORα and CsRORγ expression was detected in major lymphoid organs and altered to significant extents after bacterial and viral infection. CsRORα ...
Under the snow: a new camera trap opens the white box of subnivean ecology
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-05-14)
Snow covers the ground over large parts of the world for a substantial portion of the year. Yet very few methods are available to quantify biotic variables below the snow, with most studies of subnivean ecological processes relying on comparisons of data before and after the snow cover season. We developed a camera trap prototype to quantify subnivean small mammal activity. The trap consists of a ...
The greening of Norwegian salmon production
(Journal article; Peer reviewed; Tidsskriftartikkel, 2015-11-16)
The Norwegian salmon industry has, in terms of production and economic results,
been a great success. However, due to environmental problems such as sea lice and
escapes, the industry encounters increasing resistance from many quarters, headed
by the wild salmon sport fishers. In order to improve the image of the industry, the
fisheries authorities have suggested four new reforms that all ...
The role of family communication and parents' feeding practices in children's food preferences
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-07)
This study used Family Communication Patterns Theory (FCPT) to explore how familydinner-related
communication takes place and how parents’ feeding practices may be associated
with children’s preferences for dinner meals. The sample consisted of 12 dyads with seven- and
eight-year-old Norwegian children and their parents. In-depth photo interviews were used for
collecting data. Interview transcripts ...
Aspects of the life history of the Atlantic poacher, Leptagonus decagonus, in Svalbard waters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-25)
The aim of the study is to describe aspects of the life history of the Atlantic poacher (Leptagonus decagonus) obtained during early October 2010 and late September 2011 from the Hinlopen Strait, located between Nordaustlandet and the Spitsbergen Archipelago. Length was measured for 142 individuals, and 82 out of these were weighed, sexed and the age in years determined. The sex distribution in the ...
Food Web Topology in High Mountain Lakes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-16)
Although diversity and limnology of alpine lake systems are well studied, their food web structure and properties have rarely been addressed. Here, the topological food webs of three high mountain lakes in Central Spain were examined. We first addressed the pelagic networks of the lakes, and then we explored how food web topology changed when benthic biota was included to establish complete trophic ...
Consistent isotopic differences between Schistocephalus spp. parasites and their stickleback hosts
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07-23)
Parasite−host systems show markedly variable patterns in isotopic fractionation: parasites can be either depleted or enriched in 15N and 13C as compared to their hosts. However, it remains unknown whether isotopic fractionation patterns are similar in comparable parasite−host systems from markedly different ecosystems. Results of this study show that large-sized Schistocephalus spp. endoparasites ...
Parasite communities of two three-spined stickleback populations in subarctic Norway—effects of a small spatial-scale host introduction
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-30)
We compared metazoan parasite communities of an introduced three-spined stickleback (Gasterosteus aculeatus) population with the nearby source population in northern Norway to study differences and clarify if factors controlling parasite dispersal act on a small spatialscale. The two component communities were highly similar. All parasite taxa found in the source population also occurred in the ...
Ontogenetic dynamics of infection with Diphyllobothrium spp. cestodes in sympatric Arctic charr Salvelinus alpinus (L.) and brown trout Salmo trutta L.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-23)
The trophic niches of Arctic charr and brown trout differ when the species occur in
sympatry
. Their
trophically transmitted parasit
es are expected to reflect these
differences.
Here
, we investigate how the infections
of
Diphyllobothrium dendriticum
and
Diphyllobothrium ditremum
differ between
charr and trout. These tapeworms use
copepods ...
Whale Watching in Norway Caught Between More Traditional Hunting Canons and the Lucrative Promise of Seismic Airguns
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-09-01)
This research note concerns the role of whale-watching tourism providers in the debate over protection of the marine environment. The case reported is about northern Norwegian whale-watching organizations. Based on the analysis of local newspapers and on the direct experience of one member of our research team, this research note concludes that the whale-watching companies, and more in general the ...