Browsing Norges fiskerihøgskole by Title
Now showing items 1399-1418 of 1576
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Structure dependent determination of organophosphate targets in mammalian tissues using activity-based protein profiling
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-24)Acute and chronic exposure to organophosphates (OPs), including agricultural pesticides, industrial chemicals, and chemical warfare agents, remain a significant worldwide health risk. The mechanisms by which OPs alter development and cognition in exposed individuals remain poorly understood, in part due to the large number of structurally diverse OPs and the wide range of affected proteins and ... -
The structure of Norwegian seafood trade
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-30)While seafood is a highly traded commodity, lack of data has largely prevented examination of the firms and industries that are conducting the actual transactions. In this paper we use highly disaggregated data to provide an overview of the seafood exports from Norway, the world’s 2nd largest seafood exporting country, and a country where fisheries as well as aquaculture are important industries. ... -
Structure-activity relationships of the antimicrobial peptide arasin 1 - and mode of action studies of the N terminal, proline-rich region
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)Arasin 1 is a 37 amino acid long proline-rich antimicrobial peptide isolated from the spider crab, Hyas araneus. In this work the active region of arasin 1 was identified through structure-activity studies using different peptide fragments derived from the arasin 1 sequence. The pharmacophore was found to be located in the proline/arginine-rich NH2 terminus of the peptide and the fragment arasin ... -
The struggle to govern the snow crab (Chionoecetes opilio) in the Barents Sea
(Master thesis; Mastergradsoppgave, 2018-05-15)This thesis is dedicated to study the main challenges that occurs when a new resource is to be made manageable, in accordance with the Norwegian principles of fisheries management and international obligations and agreements. The research object of this thesis is the snow crab (Chionoecetes opilio), and its current establishment in the Barents Sea. The study is based on theory of governability and ... -
Stubborn fuel tax concessions: The case of fisheries in Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-11-22)In the context of the abolition of traditional subsidies, this paper discusses the persistence of the major remaining subsidy scheme in Norwegian fisheries: exemption from fuel taxes. This reimbursement scheme stems from the late1980s, and has persisted since then under different governments. This paper gives the background to this support against theoretical predictions of the subsidy's effects on ... -
Studiar av B-celler hos laks (Salmo salar) – blir dei aktiverte av TLR-ligandar?
(Master thesis; Mastergradsoppgave, 2022-05-29)Pankreassjukdom, infeksiøs lakseanemi, hjarte- og skjelettmuskelbetennelse og kardiomyopatisyndrom er dei mest utbreidde virussjukdommane i oppdrettsnæringa i Noreg i dag. Sjukdommane har skulda for sterkt nedsett velferd for laksefisk, og store økonomiske tap for oppdretterar langs heile kysten. Vaksinane som blir nytta mot virus i dag har ikkje tilfredsstillande effekt, då vaksinert fisk framleis ... -
Studier av B-celler hos laks (Salmo salar) - Aktiveres de av TLR-ligander?
(Master thesis; Mastergradsoppgave, 2022-05-29)Virussykdommer hos atlantisk laks (Salmo salar) er en av de største utfordringene i norsk akvakulturindustri, og i tillegg til store økonomiske tap for næringa, fører virussykdommene også med seg store fiskevelferdsmessige problemer. Virusvaksinene som er tilgjengelig på det norske markedet i dag har vist å gi begrenset grad av beskyttelse, og velferdsmessige bekymringer er knyttet opp mot bivirkningene ... -
Studier av Hjerte- og skjelettmuskelbetennelse (HSMB) i Atlantisk laks (Salmo salar L.). Effekter av Infeksiøs pankreasnekrose virus (IPNV) og vaksinasjon på utviklingen av HSMB in vivo, og etablering av primærkultur av hjerteceller for dyrking av Piscine reovirus (PRV) in vitro.
(Master thesis; Mastergradsoppgave, 2013-05-30)Hjerte- og skjelettmuskelbetennelse (HSMB) og infeksiøs pankreasnekrose (IPN) er utbredte sykdommer i norsk lakseoppdrett. IPN er forårsaket av Infeksiøs pankreasnekrose virus (IPNV) og HSMB er assosiert med tilstedeværelse av Piscine reovirus (PRV). Utbrudd av HSMB i oppdrettslaks er ofte observert like i etterkant av et IPN utbrudd, men hvordan en IPNV infeksjon påvirker utviklingen av HSMB er ... -
Studies on the antibody response and side effects after intramuscular and intraperitoneal injection of Atlantic lumpfish (Cyclopterus lumpus L.) with different oil-based vaccines
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-26)Atlantic lumpfish (<i>Cyclopterus lumpus</i> L.) is used as a biological delousing agent for sea lice (<i>Lepeophtheirus salmonis</i> K.) infestations in Norwegian aquaculture. Here, we present a study on the antibody response and vaccine side effects after intramuscular and intraperitoneal injection of lumpfish with two vaccines. Both vaccines contained bacterial antigens from atypical <i>Aeromonas ... -
Studies on the effects of LPS, ß‐glucan and metabolic inhibitors on the respiratory burst and gene expression in Atlantic salmon macrophages
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-30)Reactive oxygen species (ROS) production in macrophage‐like cells is induced as an antimicrobial defence against invading pathogens. In this study, we have explored how different stimuli and metabolic inhibitors affect the level of respiratory burst in Atlantic salmon (<i>Salmo salar</i> L.) head kidney macrophage‐like cells. Cells stimulated in vitro by bacterial lipopolysaccharide (LPS) and ß‐glucan ... -
Studies on the stimulation of Atlantic salmon macrophage-like cells with emphasis on respiratory burst
(Master thesis; Mastergradsoppgave, 2017-11-15)Reactive oxygen species (ROS) production in macrophage-like cells is induced as an antimicrobial defence against invading pathogens. In this present study, we have explored how different stimuli and metabolic inhibitors affects the level of respiratory burst in Atlantic salmon (Salmo salar L.) head kidney macrophage-like cells. Cells stimulated in vitro by bacterial lipopolysaccharide (LPS) and ... -
A study of perceived key success factors among salmon importers and distributors in Shanghai
(Master thesis; Mastergradsoppgave, 2006-06-06) -
A study on the economic efficiency of the offshore long line fishery in Khanh Hoa province, Vietnam
(Master thesis; Mastergradsoppgave, 2010-05-17)Since the 1990s, Vietnam’s government has made great efforts to develop the offshore fisheries development program. Study on the economic efficiency of the offshore long-line fishery is needed to evaluate and improve the program’s effectiveness. This thesis presents findings based on survey data collected through a representative sample of 37 registered offshore vessels operating in the Vietnam’s ... -
A study on the escape rate of Northeast Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) under the fishing line with two different ground ropes in the Barents Sea bottom trawl fishery and the influence of some biotic and abiotic factors on the efficiency during bottom trawling
(Master thesis; Mastergradsoppgave, 2015-05-15)The aim of this study was to investigate the escapement under the fishing line for cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) with the conventional rock-hopper gear and a new type of gear termed semicircular spreading gear (SCSG). The trials were conducted during November 2014 and February 2015 in the Barents Sea under varying environmental conditions. In order to catch the escapees ... -
Subjective well-being and stated preferences: Explorations from a choice experiment in Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-01)Subjective well-being valuation has recently grown in use with applications in the fields of environment, health, and cultural heritage. With this methodology values are based on how non-market goods impact on self-reported measures of well-being such as life satisfaction. Despite the differences in theoretical foundations of subjective well-being and preference-based valuation methods, recent ... -
Subsidies—Help or Hurt? A Study from Vietnamese Fisheries
(Journal article; Tidsskriftartikkel, 2021)Subsidies are part of the set of management tools that governments apply to modernize their fishing fleets and enable them to engage in offshore and international fisheries. Research has shown that subsidies often lead to overcapacity and overfishing, resulting in the depletion of fish stocks. A few studies, however, have found some positive effects for particular subsidies. In this paper, we ... -
Substituting model based indicators in Harvest Control Rules by observations using fuzzy logic methodology
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-26)Harvest Control Rules are predefined heuristic decision rules to provide quota advices for managed fisheries. Frequently statistical methods and biological assumptions expressed in mathematical models, are used to provide the Harvest Control Rules with initial information (indicators values). The aim of this article is to investigate a possible way forward of replacing these inputs by quantities of ... -
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-06)The warming trend of the Arctic is punctuated by several record-breaking warm years with very low sea ice concentrations. The nature and reversibility of marine ecosystem responses to these multiple extreme climatic events (ECEs) are poorly understood. Here, we investigate the ecological signatures of three successive bottom temperature maxima concomitant with surface ECEs between 2004 and 2017 in ... -
Suggested ways for improving the management of the Bay of Bengal shrimp trawl fisheries: A literature study on challenges and bycatch mitigation in shrimp trawl fisheries around the world and examples on how it is implemented in the management regimes in various nations.
(Master thesis; Mastergradsoppgave, 2018-04-14)India, Sri Lanka and Bangladesh have border with Bay of Bengal. Sri Lanka and India has good consciousness on bycatch situations in their part. But Bangladesh has very little intension on bycatch strategies. This paper has main intention to write about Bangladeshi part of Bay of Bengal on bycatch situation. As a littoral state of the Bay of Bengal, Bangladesh has ample coastal and marine resources. ... -
Sukkertare (Saccharina latissima) som proteinkilde. Effekt av oppmaling og fraksjonering på proteinfordøyelighet
(Master thesis; Mastergradsoppgave, 2022-05-15)Verdens befolkning øker stadig og det er estimert at den globale befolkningen når 9,7 milliarder mennesker innen 2050. Som konsekvens av befolkningsveksten vil behovet og etterspørselen for mat øke. Tilstrekkelig produksjon av næringsrik mat til en økende befolkning utført på en bærekraftig måte er en stor global utfordring. Det antas at særlig proteiner vil være et av næringsstoffene det vil være ...