Søk
Viser treff 1-10 av 20
Fiskeren som forsvant? En studie av avfolking, overbefolking og endringsprosesser i norsk fiskerinæring
(Doctoral thesis; Doktorgradsavhandling, 2003-02-28)
Hva er en fisker? Dette er det sentrale spørsmålet i denne avhandlinga. Spørsmålet er
utgangspunkt for å utforske endringsprosesser i fiskerinæringa, både i fortida og i samtida. På
bakgrunn av dette drøfter avhandlinga hvilke oppfatninger, forståelser og beskrivelser som til
enhver tid benyttes til å definere hva fiskere er i ulike sammenhenger. Undersøkelsen starter i
det som kan kalles ...
Economic analyses of user interactions in the coastal zone
(Doctoral thesis; Doktorgradsavhandling, 2008-05-05)
Marine and coastal areas contain many resource types, with many uses and user groups. Conflicts are common, both over access to the same resource, and to avoid negative effects of others’ use. Such conflicts are expected to increase in extent and severity. Being able to analyze and understand the nature and consequences of the interactions between different user groups, how it affects their behaviour ...
The potential for cooperation in shared fisheries : theory and application to Vietnam's fisheries strategy in the South China Sea
(Doctoral thesis; Doktorgradsavhandling, 2009-06-05)
Since the end of the 20th century, many shared fish stocks throughout the world have been found in extreme danger of collapse. There are many calls for cooperation in utilizing and conserving the shared fish resources including the 1982 UN Convention on the Law of the Sea and the 1995 UN Fish Stock Agreement. This study provides an important rationale for cooperation in utilizing a shared fish stock ...
Boundary construction in mandated science : the case of ICES' advice on fisheries management
(Doctoral thesis; Doktorgradsavhandling, 2008-11-21)
What is the relationship between science and politics? What should it be? How are their
respective roles conceived and acted out in practice? Should science and politics be
clearly separated? How? Are there cases in which they can be usefully mixed? What
cases are those, and are there some ways of mixing that are better than others? This project explores such questions by examining relationships ...
Information in financial markets : how private information affects prices, how it can be revealed and how it may be used
(Doctoral thesis; Doktorgradsavhandling, 2008-06-06)
The literature on financial markets is vast and it is probably safe to say that all tools in the economists’ tool case have been applied to this field. In this dissertation I will present three papers that are very diverse in their approach to the subject of finance, but have an important common theme;
asymmetric information and efficiency in financial markets.
Effect of viral RNA mimics and ISA virus infection on expression of key genes of the Atlantic salmon interferon system
(Doctoral thesis; Doktorgradsavhandling, 2008)
We have studied the innate immune responses of Atlantic salmon and how this responds to
stimulation and infection by the aquatic orthomyxovirus Infectious salmon anemia virus
(ISAV). This work has focused on the Type I interferon (IFN) system which is critically
important in the vertebrate immune response against viral infections. As a part of this work we have studied the Atlantic salmon IFN ...
Risk sensitive reproductive strategies : the effect of environmental unpredictability
(Doctoral thesis; Doktorgradsavhandling, 2009-02-13)
A crucial task in ecology is to quantify trade offs between competing
demographic processes for experienced by individuals that inhabit
unpredictable environments. Perhaps the most widely studied trade off is
that between current reproduction and future survival (‘the cost of
reproduction’). While experimental studies have been widely used to
quantify life history strategies in birds, virtually ...
Quality of salted cod (Gadus morhua L.) as influenced by raw material and salt composition
(Doctoral thesis; Doktorgradsavhandling, 2004-03-29)
Hva påvirker kvaliteten på saltfisk? Saltfiskens lukt, farge, konsistens og smak bestemmer kvaliteten. Dersom torsken blir dødsstiv samtidig med at saltet strømmer inn i fiskekjøttet, oppnår man et lavere vektutbytte, vann- og saltinnhold på sluttproduktet. Fisken bør derfor saltes etter dødsstivheten for å oppnå et høyt vektutbytte. Ønsker man å minimere proteintapet fra salteprosessen og få en høy ...
Arctic charr (Salvelinus alpinus (L.)), an adequate host to Gyrodactylus salaris (Monogenea)
(Doctoral thesis; Doktorgradsavhandling, 2009-05-26)
Arctic charr is a suitable host to Gyrodactylus salaris, and G. salaris is a non-pathogen to this host species. This parasite is highly pathogenic to Norwegian Atlantic salmon and it has driven most affected salmon populations to extinction. In Troms County in northern Norway, two rivers are infected. These two rivers, Skibotnelva and Signaldalselva, are the northernmost G. salaris infected rivers ...
Studies of infectious pancreatic necrosis virus (IPNV) and immune evasion strategies
(Doctoral thesis; Doktorgradsavhandling, 2009-10-23)
Infectious pancreatic necrosis (IPN) is a highly contagious disease which causes huge economic loss to the salmon farming industry world wide. The causative agent, the IPN virus (IPNV), is a dsRNA, non-enveloped virus with two genomic segments encoding five viral proteins, VP1-VP5.
<br>Available vaccines against this disease give only partial protection. In order to optimize vaccine efficacies, ...