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Key genes and regulators associated with sexual differentiation and gonad development in Atlantic cod (Gadus morhua L.)
(Doctoral thesis; Doktorgradsavhandling, 2012-02-17)
Atlantic cod (Gadus morhua L.) is a promising cold-water aquaculture species, but early sexual maturation is a major problem in today’s cod farming. Teleosts display a wide variety of sex determination and sex differentiation mechanisms, ranging from genetic to environmental factors and the sexual plasticity in gonads and brain possibly reflects on a combination of these. From a practical point of ...
Sentrum og periferi : Dixit-Stiglitz-Krugman modellen
(Master thesis; Mastergradsoppgave, 2012-04)
SAMMENDRAG
Primærkilden for denne masteroppgaven er; Fujita, Masahisa – Krugman, Paul og Venables, Antony J: ”The Spatial Economy ”, The MIT Press 1999.
Den grunnleggende 2x2x2 Dixit-Stiglitz-Krugman modellen for monopolistisk konkurranse, med 14 koplede likninger, er utviklet ved bruk av gitte data og Dixit-Stiglitz funksjonen – og én optimering. I primærkilden brukes to optimeringer. Fra denne ...
Management of the alien invasive red king crab Integrating natural and social science perspectives
(Doctoral thesis; Doktorgradsavhandling, 2012-06-12)
The red king crab (Paralithodes camtschaticus) is a highly valuable resource that also represents a potential threat since it is an alien invasive species in the Barents Sea ecosystem. This thesis explores the use of different interdisciplinary frameworks to analyse how ecological, social and economic concerns could be accounted for in deciding on how the king crab should be managed in the Norwegian ...
Metabolic fingerprinting applied in diatom taxonomy
(Doctoral thesis; Doktorgradsavhandling, 2012-06-18)
The main aim of this thesis was to investigate if and how metabolic fingerprinting can be applied in diatom taxonomy. Even though both morphology and gene sequences have been shown to be appropriate tools in diatom taxonomy there are cases where these give contradicting results, like in the case of cryptic species. Cryptic species have similar morphology but are genetically different. Another issue ...
Plant regulatory networks : RNA binding proteins as mediators of communication between DNA containing compartments by dual targeting
(Doctoral thesis; Doktorgradsavhandling, 2012-05-11)
The endosymbiosis-derived organelles within a plant cell, plastids and mitochondria, have to be equipped with a certain set of proteins to be fully functional. This set of proteins is encoded by different genomes: the organellar genomes and the nuclear genomes. This setup poses some interesting challenges for the regulation of gene expression and protein transport. On the one hand, the targeting ...
Technology transfer and R&D policy in a knowledge-based society
(Doctoral thesis; Doktorgradsavhandling, 2012-06-01)
Abstract
My thesis focuses on technology transfer and innovation policy in a knowledge-based society. In particular, I analyse the firms’ incentives to invest in research and development (R&D), the transfer of technological knowledge to a rival and government stimulation of R&D investment. Further, I analyse the incentives to engage in R&D cooperation in different market structures. By coordinating ...
Certainty, risk and knowledge in the satisfaction-purchase intention relationship in a new product experiement.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
The purpose of this paper is to examine the roles of perceived certainty, manipulated risk and knowledge in the satisfaction-purchase intention relationship in the context of a new product evaluation. This study uses a 2×2 factorial design with 120 participants and a combination of methods to test hypotheses.
The respondents of low-risk as well as high-knowledge groups report a higher purchase ...
Diett hos Atlantisk laks Salmo salar langs kysten av Finnmark
(Master thesis; Mastergradsoppgave, 2012-02-24)
Atlantisk laks er en anadrom fisk som vokser fra ca 15-50 g til over 25 kg i løpet av den marine fasen, som generelt strekker seg fra 1 til 3 år. Gytevandringen skjer fra de åpne havområdene inn til kysten og tilbake til oppvekstelven. Laksen er en karnivor opportunist som spiser pelagiske byttedyr. Sild, lodde, sil og krepsdyr er ansett som de byttedyrene laksen hovedsakelig spiser når den vandrer ...
Organic carbon transformations in high-Arctic peat soils: key functions and microorganisms
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
A substantial part of the Earths’ soil organic carbon (SOC) is stored in Arctic permafrost peatlands, which represent large potential sources for increased emissions of the greenhouse gases CH4 and CO2 in a warming climate. The microbial communities and their genetic repertoire involved in the breakdown and mineralisation of SOC in these soils are, however, poorly understood. In this study, we applied ...
Settling-depth vs. genotype and size vs. genotype correlations at the Pan I locus in 0-group Atlantic cod Gadus morhua
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
We sampled 0-group juvenile Atlantic cod Gadus morhua L. within fjords and offshore in northern Norway from 1994 to 2008 using different gears for the 3 sampling depths: shore seine (0−3 m), pelagic trawl (various depths), and bottom trawl (>80 m). Frequencies of alleles at the Pan I locus (4218 fish analysed) showed highly significant differences among samples collected in the different habitats. ...