Recent additions

  • Fine-Tuning Climate Resilience in Marine Socio-Ecological Systems: The Need for Accurate Space-Time Representativeness to Identify Relevant Consequences and Responses 

    Saldívar-Lucio, Romeo; Trasviña-Castro, Armando; Jiddawi, Narriman; Chuenpagdee, Ratana; Lindström, Lars; Jentoft, Svein; Fraga, Julia; de la Torre-Castro, Maricela (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-18)
    Climate change triggers a wide mosaic of regional and local responses, often different to the large-scale variability in magnitude and direction. Because of the psychological connections (cognitive and emotional) with the frequency, intensity and age of a climatic event, people may have the capacity to recognize key variations at lower scales, especially those from which they perceive risk. Yet, the ...
  • Economic performance and capacity utilisation in vietnamese purse seine fishery 

    Nga, Cao Thi Hong; Eide, Arne; Armstrong, Claire W.; Long, Le Kim (Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
    This study identifies differences in vessel efficiency amongst purse seiners in Vietnamese fishery. Deterministic data envelopment analysis (DEA) was used to assess relative capacity utilisation of each vessel, and double bootstrap DEA was adopted to overcome some of the drawbacks of nonparametric DEA. The study was based on a survey of costs and earnings from 52 purse seiners in 2016, revealing ...
  • Temperature-dependent lipid accumulation in the polar marine microalga Chlamydomonas malina RCC2488 

    Morales-Sanchez, Daniela; Schulze, Peter Simon Claus; Kiron, Viswanath; Wijffels, Rene Hubertus (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-23)
    The exploration of cold-adapted microalgae offers a wide range of biotechnological applications that can be used for human, animal, and environmental benefits in colder climates. Previously, when the polar marine microalga <i>Chlamydomonas malina</i> RCC2488 was cultivated under both nitrogen replete and depleted conditions at 8°C, it accumulated lipids and carbohydrates (up to 32 and 49%, respectively), ...
  • More Than Expected From Old Sponge Samples: A Natural Sampler DNA Metabarcoding Assessment of Marine Fish Diversity in Nha Trang Bay (Vietnam) 

    Turon, Marta; Angulo-Preckler, Carlos; Antich, Adrià; Præbel, Kim; Wangensteen, Owen S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-09)
    Sponges have recently been proposed as ideal candidates to act as natural samplers for environmental DNA due to their efficiency in filtering water. However, validation of the usefulness of DNA recovered from sponges to reveal vertebrate biodiversity patterns in Marine Protected Areas is still needed. Additionally, nothing is known about how different sponge species and morphologies influence the ...
  • Fatty Acid Composition of the Lipids from Atlantic Salmon—Comparison of Two Extraction Methods without Halogenated Solvents 

    Nechev, Jordan; Edvinsen, Guro Kristine; Eilertsen, Karl-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-01)
    The scope of this paper was to apply two recently developed methods for lipid extraction: the methyl tert-butyl ether (MTBE) method and the BUME method. These two methods do not include halogenated solvents, which makes them less hazardous to the environment, less toxic, and needed in less volume compared to the standard methods for lipid extraction. Fatty acid composition of the lipids from Atlantic ...
  • An Update on the Content of Fatty Acids, Dioxins, PCBs and Heavy Metals in Farmed, Escaped and Wild Atlantic Salmon (Salmo salar L.) in Norway 

    Jensen, Ida-Johanne; Eilertsen, Karl-Erik; Otnæs, Carina Helen Almli; Mæhre, Hanne K; Elvevoll, Edel O. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-19)
    In this paper, we present updated data on proximate composition, amino acid, and fatty acid composition, as well as concentrations of dioxins, polychlorinated biphenyls (PCBs), and selected heavy metals, in fillets from farmed (n = 20), escaped (n = 17), and wild (n = 23) Atlantic salmon (<i>Salmo salar</i> L.). The concentrations of dioxins (0.53 ± 0.12 pg toxic equivalents (TEQ)/g), dioxin-like ...
  • Governance implications for the implementation of biodegradable gillnets in Norway 

    Standal, Dag; Grimaldo, Eduardo; Larsen, Roger B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-15)
    Gillnets are among the most widely used fishing gear in global fisheries because of their simplicity, high operability, catch efficiency and low entrance cost for fishermen. In Norway, the Northeast Atlantic (NEA) cod (<i>Gadus morhua</i>) fishing industry represents the most important economic single species fishery and the gillnet fishery accounts for 24% of the national total allowable catch (TAC) ...
  • Lipid yield from the diatom Porosira glacialis is determined by solvent choice and number of extractions, independent of cell disruption 

    Svenning, Jon Brage; Dalheim, Lars; Vasskog, Terje; Vang, Birthe; Matricon, Lucie; Olsen, Ragnar Ludvig (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-17)
    Cell wall disruption is necessary to maximize lipid extraction yields in conventional species of mass-cultivated microalgae. This study investigated the effect of sonication, solvent choice and number of extractions on the lipid yield, lipid class composition and fatty acid composition of the diatom <i>Porosira glacialis</i>. For comparison, the diatom <i>Odontella aurita</i> and green alga <i>Chlorella ...
  • Shared waters—shared problems: The role of self-governance in managing common pool resources. 

    Osmundsen, Tonje Cecilie; Karlsen, Kine Mari; Robertsen, Roy; Hersoug, Bjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-07)
    Seafood production governance, primarily and traditionally a governmental activity, is increasingly designed and performed by private actors, such as business organizations and/or Non-Governmental Organization. This is often seen as complementary to public regulation in handling collective problems, but there are few studies within the aquaculture sector which investigate the extent and potential ...
  • The Well – Mixing skirt and freshwater lens concepts with smart-lighting and -feeding to enhance lice prevention and safeguard fish welfare 

    Wright, Daniel William; Stien, Lars Helge; Oppedal, Frode; Sievers, Michael; Ditria, Ellen; Trengereid, Henrik (Research report; Forskningsrapport, 2019)
    A commercial scale sea-cage design, combining skirt and freshwater lens concepts with smart lighting and feeding for improved lice prevention and fish welfare, was trialed. Environment, lice levels and fish welfare were assessed. In addition, acoustic tags and echo sounders were used to track fish behaviour. An associated laboratory trial on brackish water salinity effects on host-attached salmon ...
  • Arctic Marine Data Collection Using Oceanic Gliders: Providing Ecological Context to Cetacean Vocalizations 

    Aniceto, Ana Sofia; Pedersen, Geir; Primicerio, Raul; Biuw, Martin; Lindstrøm, Ulf (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-16)
    To achieve effective management and understanding of risks associated with increasing anthropogenic pressures in the ocean, it is essential to successfully and efficiently collect data with high spatio–temporal resolution and coverage. Autonomous Underwater Vehicles (AUVs) are an example of technological advances with potential to provide improved information on ocean processes. We demonstrate the ...
  • The melting snowball effect: A heuristic for sustainable Arctic governance under climate change 

    Dankel, Dorothy Jane; Tiller, Rachel; Koelma, Elske; Lam, Vicky W.Y.; Liu, Yajie (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-08)
    Climate change in the Arctic is occurring at a rapid rate. In Longyearbyen, Svalbard, the world’s northernmost city, deadly avalanches and permafrost thaw-induced architectural destruction has disrupted local governance norms and responsibilities. In the North Atlantic, the warming ocean temperatures have contributed to a rapid expansion of the mackerel stock which has spurred both geo-political ...
  • Obesity-induced alterations in the gut microbiome in female mice fed a high-fat diet are antagonized by dietary supplementation with a novel, wax ester–rich, marine oil 

    Schots, Pauke C.; Jansen, Kirsten Maria; Mrazek, Jakub; Pedersen, Alice Marie; Olsen, Ragnar Ludvig; Larsen, Terje Steinar (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-09)
    Dietary supplementation with calanus oil, a novel wax ester–rich marine oil, has been shown to reduce adiposity in high-fat diet (HFD)–induced obese mice. Current evidence suggests that obesity and its comorbidities are intrinsically linked with unfavorable changes in the intestinal microbiome. Thus, in line with its antiobesity effect, we hypothesized that dietary supplementation with calanus oil ...
  • Biota miljøprøvetaking i 2018 i vannforekomsten Finnfjord Indre 

    Aalto, Nerea Johanna (Research report; Forskningsrapport, 2019)
    I henhold til brev fra Miljødirektoratet datert 10.10.2017; Vedtak om fastsettelse av intervall for vannovervåking, (av Finnfjord Indre) ble det tatt nye prøver i 2018. Hovedfokuset var på biota (blåskjell), men det ble også tatt sedimentprøver. Det ble benyttet en ROVundervannsdrone for å finne blåskjell, men det ble ikke funnet noen på bunnen ved de planlagte prøvetakingsstasjonene eller nær ...
  • Intracellular distribution and transcriptional regulation of Atlantic salmon (Salmo salar) Rab5c, 7a and 27a homologs by immune stimuli 

    Nepal, Arpita; Wolfson, Deanna; Ahluwalia, Balpreet Singh; Jensen, Ingvill; Jørgensen, Jorunn B; Iliev, Dimitar Borisov (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-31)
    Rab GTPases control trafficking of intracellular vesicles and are key regulators of endocytic and secretory pathways. Due to their specific distribution, they may serve as markers for different endolysosomal compartments. Since Rab GTPases are involved in uptake and trafficking of endocytosed ligands and cell receptors, as well as secretion of immune mediators, they have been implicated in diverse ...
  • The impact of nature documentaries on public environmental preferences and willingness to pay: Entropy balancing and the Blue Planet II effect 

    Hynes, Stephen; Yeboah, Isaac-Ankamah; O'Neill, Stephen; Needham, Katherine; Bui, Bich Xuan; Armstrong, Claire (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-23)
    In this study, the discrete choice experiment approach was employed in a survey of the Scottish general public to analyze how respondents make tradeoffs between blue growth potential and marine ecosystem service delivery associated with the Mingulay cold water reef complex. Results indicate a higher willingness to pay for management options associated with the highest possible levels of marine litter ...
  • Potential for Sustainable Aquaculture: Insights from Discrete Choice Experiments 

    Bui, Bich Xuân; Sandoft, Erlend (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-04)
    The growth in global aquaculture production may address the lack of sustainability in wild fisheries, alleviate poverty in rural and coastal areas, and help meet the worldwide increase in demand for animal protein. However, there is an ongoing debate about the severity of the environmental impact of aquaculture production. Investing in new high-tech production systems can address both productivity ...
  • Consumer preference for eco-labelled aquaculture products in Vietnam 

    Bui, Bich Xuân (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-01)
    Product labelling with eco-certifications is market-based incentive tool for sustainable aquaculture, thus mitigating negative environmental impacts. The aims of this study are to investigate: i) whether consumers prefer eco-labelled (eco-certified) shrimps over conventional (non-certified) shrimp; and ii) whether consumers prefer specific eco-label (eco-certification logo) over others. The study ...
  • Public Perceptions of Deep-Sea Environment: Evidence from Scotland and Norway 

    Ankamah-Yeboah, Isaac; Xuan, Bui Bich; Hynes, Stephen; Armstrong, Claire W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-10)
    Knowledge of people's understanding of environmental problems is vital for the effective implementation of the ecosystem approach to marine management. This is especially relevant when conservation goals are aimed at ecosystems in the deep-sea that are remote to the consciousness of most people. This study explores public perceptions of the deep-sea environment among the Scottish and Norwegian public. ...
  • Trading off Tourism and Fisheries 

    Bui, Bich Xuân; Armstrong, Claire W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-22)
    This paper presents a deterministic bioeconomic model in which the creation of a marine protected area (MPA) is not only a fisheries management tool but also introduced in order to provide tourism amenity benefits. The theoretical model is illustrated with analysis of the Nha Trang Bay (NTB) MPA in Khanh Hoa province in Vietnam, where the anchovy purse seine fishery is considered. An amenity value ...

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