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norskNorges fiskerihøgskole: Recent submissions
Now showing items 981-1000 of 1579
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Enhancing the saliency of climate services for marine mobility sectors in European Arctic seas (SALIENSEAS): Stakeholder Advisory Group Workshop Report
(Research report; Forskningsrapport, 2018-03)This report provides an overview of the activities and discussions that took place during the first SALIENSEAS Stakeholder Advisory Group workshop, held on 25 January at UiT The Arctic University of Norway in Tromsø, Norway. The workshop was inspired by a participatory approach, in order to give prominence to the perspectives and needs of the various stakeholders involved in ... -
Lønnsomhetsanalyse av Vartdalgruppa Fiskeoppdrett AS satsing på stor smolt
(Master thesis; Mastergradsoppgave, 2017-05-15)Norge er verdens største produsent av atlantisk laks og ambisjonene er å femdoble lakseproduksjonen frem mot 2050. Siden 2012 har det ikke vært produksjonsvekst i oppdrettsnæringen som følge av problemer med lakselus og ulike fiskesykdommer. Problemene har tvunget oppdrettsnæringen å tenke i nye baner for å oppnå videre vekst. Siste årene har flere oppdrettsselskap startet utbygging av landbaserte ... -
Protein determination - Method matters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-01)The reported protein content of foods depends on the analytical method used for determination, making a direct comparison between studies difficult. The aim of this study was to examine and compare protein analytical methods. Some of these methods require extraction preceding analysis. The efficacy of protein extraction differs depending on food matrices and thus extraction yield was determined. ... -
Global aquaculture growth and institutional quality
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10)The global aquaculture sector has grown continuously over the past 40 years, though unevenly among countries. Differences in factors such as inputs, climate, management, technology, markets, social environment, and institutions might be reasons for the disparities in growth. This study focuses on institutions, by analyzing the relationship between annual growth in the production of the major aquaculture ... -
Verdivurdering av Joh. H. Pettersen AS
(Master thesis; Mastergradsoppgave, 2005-05)Det er ofte behov for verdsettelse av en bedrift. Viktige tilfeller er ved kjøp og salg av hele eller deler av en virksomhet, ved fusjon og fisjon, ved generasjonsskifte og ved fastsettelse av takst for beregning av eiendomsskatt. Denne oppgaven vil ta for seg verdivurdering av Joh. H. Pettersen, et ikke - børsnotert selskap. <br>Mange bedrifter har som mål å maksimere verdien for eierne. Lønnsomme ... -
Perturbation of seafloor bacterial community structure by drilling waste discharge
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-31)Offshore drilling operations result in the generation of drill cuttings and localized smothering of the benthic habitats. This study explores bacterial community changes in the in the upper layers of the seafloor resulting from an exploratory drilling operation at 1400 m water depth on the Barents Sea continental slope. Significant restructurings of the sediment microbiota were restricted to the ... -
Fish silage hydrolysates: Not only a feed nutrient, but also a useful feed additive
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-06)Background:<br> Processing of fish and shellfish may result in substantial amounts of by-products and unless they can be used as food, the most realistic option in most cases is the production of preserved feed nutrients. If large volumes are available, reduction to fishmeal and fish oil is the preferred technology. However, fresh by-products are most often available in insufficient quantities ... -
Escape rate for cod (Gadus morhua) from the codend during buffer towing
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)The high abundances of Northeast Arctic cod (Gadus morhua) in the Barents Sea have led to the development of a new fishing tactic called buffer towing. On factory trawlers, the trawl is deployed immediately after taking the catch onboard, a tactic used to ensure a continuous supply of fish is being processed. If the desired amount of fish is caught before the catch from the previous haul has been ... -
New Disulfide-Stabilized Fold Provides Sea Anemone Peptide to Exhibit Both Antimicrobial and TRPA1 Potentiating Properties
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-29)A novel bioactive peptide named τ-AnmTx Ueq 12-1 (short name Ueq 12-1) was isolated and characterized from the sea anemone Urticina eques. Ueq 12-1 is unique among the variety of known sea anemone peptides in terms of its primary and spatial structure. It consists of 45 amino acids including 10 cysteine residues with an unusual distribution and represents a new group of sea anemone peptides. The 3D ... -
Determinants of trip duration for international tourists in Norway; a parametric survival analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-10)How long a tourist stays in a host country acts as an indicator of tourism industry’s contribution towards the national economy. The purpose of this study is to examine how socio-demographic characteristics of international tourists, their travelling purpose, tourism products and characteristics of the destination influence the length of stay in Norway, by estimating a parametric survival model. ... -
A head start for an invasive species in a strongly seasonal environment? Growth of Elodea canadensis in boreal lakes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-20)Many invasive species are expanding northwards into boreal and subarctic habitats, but research on the factors favoring their establishment in these regions remains limited. In three Swedish lakes we investigated the growth of Elodea canadensis Michx, a highly invasive macrophyte that is spreading northwards in Europe and Alaska. We conducted an in situ growth experiment, maintained for ten months, ... -
The impact of coastal grabbing on community conservation – a global reconnaissance
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-14)"Coastal grab" refers to the contested appropriation of coastal (shore and inshore) space and resources by outside interests. This paper explores the phenomenon of coastal grabbing and the effects of such appropriation on community-based conservation of local resources and environment. The approach combines social-ecological systems analysis with socio-legal property rights studies. Evidence of ... -
Creating political spaces at sea - governmentalisation and governability in Norwegian fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)How do technologies of power make the world governable? The understanding of how management techniques create governability remains rather poor. In this article, I analyse how spatial regulation in Norwegian fisheries direct human behaviour towards scientific, political, and administrative objectives. Like other fisheries’ regulations, they contribute to governmentalisation and governability, and ... -
Seafood from a changing Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-27)We review current knowledge about climate change impacts on Arctic seafood production. Large-scale changes in the Arctic marine food web can be expected for the next 40–100 years. Possible future trajectories under climate change for Arctic capture fisheries anticipate the movement of aquatic species into new waters and changed the dynamics of existing species. Negative consequences are ... -
Riparian plant litter quality increases with latitude
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-05)Plant litter represents a major basal resource in streams, where its decomposition is partly regulated by litter traits. Litter-trait variation may determine the latitudinal gradient in decomposition in streams, which is mainly microbial in the tropics and detritivore-mediated at high latitudes. However, this hypothesis remains untested, as we lack information on large-scale trait variation for ... -
Anti-Infective Effect of Adhesive Probiotic Lactobacillus in Fish is Correlated with Their Spatial Distribution in the Intestinal Tissue
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-16)In this study, we tested the distribution of 49 Lactobacillus strains in the mucus and mucosa of the intestine tissue of zebrafish. We observed a progressive change in the spatial distribution of Lactobacillus strains, and suggested a division of the strains into three classes: mucus type (>70% in mucus), mucosa type (>70% in mucosa) and hybrid type (others). The hybrid type strains were more efficient ... -
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-03)Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process. The seine ropes and net are deployed in a specific pattern encircling an area on the seabed. In some variants of demersal seining the haul-in procedure includes a towing phase where the fishing vessel moves ... -
Marine reserve creation and interactions between fisheries and capture-based aquaculture: A bio-economic model analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-12)The rapid growth of aquaculture affects wild fisheries in several ways. We present a bioeconomic model of the interaction between a commercial wild fishery and capture-based aquaculture that depends on harvest of wild juveniles. We assume that aquaculture reduces the intrinsic growth rate of the wild fish stock due to wild caught juveniles used as seeds, influencing wild stock size and commercial ... -
The geographic scope of the svalbard treaty and norwegian sovereignty: historic - or evolutionary - interpretation?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)The Svalbard Treaty and its claimed ‘extended-reach’ jurisdiction incorporating both the continental shelf and exclusive economic zone (EEZ) – ie a fisheries protection zone (FPZ) – is an international law puzzle. Disputes regarding the Treaty’s jurisdictione ratione terrae results from interpretative differences. My findings are as follows: the Treaty’s concept of ‘full and absolute sovereignty’ ... -
Fileter fra oppdrettstorsk produsert pre- og post-rigor og lagret med og uten skinn. Vekttap og proteinnedbrytning under islagring i 14 dager
(Master thesis; Mastergradsoppgave, 2008-05-15)Atlantisk torsk (Gadus morhua L.) er en relativt ny og lovende art i Norsk oppdrett. Til nå har oppdrettstorsk blitt eksportert som sløyd fisk. Dersom produksjonsvolumet får den forventede økningen i fremtiden så må man tenke på foredling som filetering, før eksport og salg. Filetering av velfødde torskefisker som oppdrettstorsk, er ingen enkel sak. Dersom slik fisk fileteres til vanlig tid, det vil ...
