Salmon louse (Lepeophtheirus salmonis) is a parasitic copepod that causes significant damage to Atlantic salmon (Salmo salar) and incurs significant costs to the salmonid aquaculture industry. In Norway, the industry has been coping with salmon lice issues with various methods such as chemical treatments, but it has resulted in an acquisition of resistance in salmon lice towards the existing delousing ...

Lingonberry is an evergreen dwarf shrub abundant and is a food traditionally regarded as a staple of Nordic diets. There is limited commercial harvest of these readily available berries. The objective of this doctoral thesis is to investigate how the composition Norwegian lingonberries vary and investigate how the composition of the lingonberries is affected by abiotic and biotic growth conditions. ...

The literature on product variety provides great insights into various businesses. However, little research has been conducted on product variety in the healthcare industry. This study aims to explore the influence of product variety on inventory in hospitals. Since most hospitals are known to replenish products using a homegrown ad-hoc system, a model is developed for exploring all possible ...

Temaet for denne studien er investorers beslutningsprosess, og om investorene blir påvirket av ikke rasjonelle faktorer i prosessen. Formålet med studien er å undersøke om investeringer blir tatt på fundamentalt grunnlag. Jeg har tatt utgangspunkt i det rasjonelle synet på en investor, og lagt fundamental verdsetting som teoretisk utgangspunkt ved dette synet. Har videre innlemmet institusjonell ...

Infectious pancreatic necrosis virus (IPNV) is an aquatic member of the Birnaviridae family that causes widespread disease in salmonids. IPNV is represented by multiple strains with markedly different virulence. Comparison of isolates reveals hyper variable regions (HVR), which are presumably associated with pathogenicity. However little is known about the rates and modes of sequence divergence and ...

Capture-based aquaculture (CBA) is an important branch of the aquaculture industry that differs from closed cycle farming in that the stocking material consists of captured wild fish or other aquatic organisms. By skipping the difficult early production stages of fish farming, producers can test whether assumed market advantages such as high quality and consistent supply result in higher prices – ...

Iceland has been dependent on the ocean and the resources found within it for centuries. With greater technology and fishing effort in the past decades, overfishing had become a serious threat to the nation’s largest commercial stocks. This development led to restrictions on the fisheries which later led to the implementation of the ITQ system. Fisheries in Iceland are conducted with sustainability ...

Regional convergence studies have relied on net migration data in assessing the impact of migration. With heterogeneous labour, the implied symmetrical treatment of immigration and emigration cannot be justified a priori.. Because of heterogeneity among migrants, gross migration flows may lead to considerable interregional redistribution of human capital even when net migration is zero. Moreover, ...

Wild cod is a scarce and valuable natural resource. However, cod fishing along the coast of northern Norway has largely been about fishing as much as possible with the least possible resource effort, and thereby at the lowest cost. This traditional volume logic is rooted in biology, meteorology, and small scale capture technology. The logic is further enhanced by new large scale capture technology ...

Shortening codend lastridge ropes can be an effective fishing gear modification to improve the size selection properties in diamond mesh codends. Lastridge ropes attached to codend selvedges withstand the longitudinal forces created by the catch building up and therefore, prevent the codend meshes from closing. However, the extent to which the lastridge ropes should be shortened to maximize the ...