Now showing items 21-40 of 372

    • Are non-monetary payment modes more uncertain for stated preference elicitation in developing countries? 

      Vondolia, Godwin Kofi; Navrud, Ståle (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-09)
      An increasing number of stated preference studies adopt both monetary and non-monetary payment modes to elicit preferences for goods and services in developing and transition countries. The extent to which these alternative payment modes approximate the underlying human preferences for these goods and services is poorly understood. The circumstances under which monetary and non-monetary welfare ...
    • Aspects of the life history of the Atlantic poacher, Leptagonus decagonus, in Svalbard waters 

      Heggland, Kristin N.; Ottesen, Camilla; Berge, Jørgen (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-25)
      The aim of the study is to describe aspects of the life history of the Atlantic poacher (Leptagonus decagonus) obtained during early October 2010 and late September 2011 from the Hinlopen Strait, located between Nordaustlandet and the Spitsbergen Archipelago. Length was measured for 142 individuals, and 82 out of these were weighed, sexed and the age in years determined. The sex distribution in the ...
    • Assessing the added value of the recent declaration on unregulated fishing for sustainable governance of the central Arctic Ocean 

      Shephard, Grace Elizabeth; Dalen, Kari; Peldszus, Regina; Aparicio, Sara; Beumer, Larissa; Birkeland, Roger; Gkikas, Nikolaos; Kourantidou, Melina; Ktenas, Panagiotis; Linde, Peter Wilhelm; Marazzi, Francesco; Pincinato, Ruth Beatriz Mezzalira; Radianti, Jaziar; Schartmüller, Bernhard; Stübner, Eike Ingrid; Varnajot, Alix; Vullierme, Magali; Zhilina, Irina (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-21)
      The ‘Declaration concerning the prevention of unregulated high seas fishing in the central Arctic Ocean’ signed by the Arctic 5 nations, limits unregulated high seas fishing in the central part of the Arctic Ocean, and holds potential social, economic and political impacts for numerous stakeholders. In this paper, the four Interim Measures in the Declaration are discussed and what value these measures ...
    • Assessing the impact of buffer towing on the quality of Northeast Atlantic cod (Gadus morhua) caught with a bottom trawl 

      Brinkhof, Jesse; Larsen, Roger B.; Herrmann, Bent; Olsen, Stein Harris (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-28)
      The dense aggregations of Northeast Atlantic cod (Gadus morhua) in the Barents Sea have led to a new fishing practice termed “buffer towing.” In this fishery, many trawlers redeploy the trawl directly after taking the catch onboard in an attempt to secure a continuous supply of fish and avoid any unnecessary stops during processing. If the approximate desired amount of fish is caught or exceeded ...
    • Assessment of the Relative Catch Performance of a Surrounding Net without the Purse Line as an Alternative to a Traditional Boat Seine in Small-Scale Fisheries 

      Notti, Emilio; Brcic, Jure; De Carlo, Francesco; Herrmann, Bent; Lucchetti, Alexandro; Virgili, Massimo; Antonello, Sala (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-30)
      The catch performance of a traditional Ligurian boat seine, which is not in line with the European Union regulation, was compared with an experimental surrounding net without the purse line as a potential legal alternative. The relative catch performance between the two gear types was assessed using a new catch comparison method requiring neither paired data collection nor equal number of hauls with ...
    • Atlantic salmon possesses two clusters of type I interferon receptor genes on different chromosomes, which allows for a larger repertoire of interferon receptors than in zebrafish and mammals 

      Sun, Baojian; Greiner-Tollersrud, Linn; Koop, Ben F; Robertsen, Børre (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • The Backward-Bending Supply Curve in Fisheries-Revisited 

      Pham, Thanh Thuy; Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      This study discusses and estimates the backward-bending supply curve, using data for three years over a six-year time span from the inshore purse seine fishery in Khanh Hoa province, Vietnam. Four different models are developed for estimation based on fisheries data, in the absence of stock survey data. The estimated maximum sustainable yield for the anchovy in south-central Vietnam ranges from ...
    • Bacterial Diversity in the Digestive Tracts of Four Indian Air-Breathing Fish Species Investigated by PCR Based Denaturing Gradient Gel Electrophoresis 

      He, Suxu; Zhou, Zhigang; Banerjee, Goutam; Huang, Lu; Ray, Arun Kumar; Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-02)
      An investigation was conducted to identify the allochthonous microbiota (entire intestine) and the autochthonous microbiota in proximal intestine (PI) and distal intestine (DI) of four species of Indian air-breathing fish (climbing perch; Anabas testudineus, murrel; Channa punctatus, walking catfish; Clarias batrachus and stinging catfish; Heteropneustes fossilis) by PCR based denaturing gradient ...
    • Bakterievekst under naturtørking av tørrfisk: Sammenligning av normal- og mucosovev 

      Bjørkevoll, Ingebrigt; Landfald, Bjarne; Ernstsen, Marita Holm; Joensen, Sjurdur; Tidemann, Even (Research report; Forskningsrapport, 2008-04)
      Mikroorganismer antas å påvirke utviklingen av lukt og smak i tørrfisk, men det er lite er kjent om hvilke organismer som dominerer under tørkeprosessen. Samtidig er mikrobielle forhold er også antatt å være essensielle for utviklingen av mucoso, som er en kvalitetsfeil i tørrfisk der deler av fiskemuskelen blir oppløst og slimaktig. Slike partier må skjæres bort under bløtingsprosessen. Denne ...
    • Behov for Statfisk? 

      Trondsen, Torbjørn (Chronicle; Kronikk, 2016-09-15)
    • Bioactivity Screening of Microalgae for Antioxidant, Anti-Inflammatory, Anticancer, Anti-Diabetes, and Antibacterial Activities 

      Lauritano, Chiara; Andersen, Jeanette hammer; Hansen, Espen; Albrigtsen, Marte; Escalera, Laura; Esposito, Francesco; Helland, Kirsti; Østnes Hanssen, Kine; Romano, Giovanna; Ianora, Adrianna (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-10)
      Marine microalgae are considered a potentially new and valuable source of biologically active molecules for applications in the food industry as well as in the pharmaceutical, nutraceutical, and cosmetic sectors. They can be easily cultured, have short generation times and enable an environmentally-friendly approach to drug discovery by overcoming problems associated with the over-utilization ...
    • A bioeconomic MPA study based on cellular automata population growth and distribution 

      Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      This paper investigates possible biological and economic effects of using marine sanctuaries as a management tool, employing cellular automata techniques to model biological growth and area distribution, assuming open access to the fish stock resources outside the protected area. The cellular automata model incorporates a fish harvest model based on standard assumptions. In agreement with previous ...
    • Bioeconomics of Commercial Marine Fisheries of Bay of Bengal: Status and Direction 

      Habib, Ahasan; Ullah, Md Hadayet; Nguyen, Ngoc Duy (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Bomkast om privatisering av havet 

      Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel, 2014)
      Anmeldelse av Henning Røed, "Fiskehistorier" Forlaget Manifest, 2013
    • Boreal marine fauna from the Barents sea disperse to Arctic Northeast Greenland 

      Andrews, Adam; Christiansen, Jørgen Schou; Bhat, Shripathi; Lynghammar, Arve; Westgaard, Jon-Ivar; Pampoulie, Christophe; Præbel, Kim (Journal article; Peer reviewed, 2019-04-09)
      As a result of ocean warming, the species composition of the Arctic seas has begun to shift in a boreal direction. one ecosystem prone to fauna shifts is the Northeast Greenland shelf. the dispersal route taken by boreal fauna to this area is, however, not known. This knowledge is essential to predict to what extent boreal biota will colonise Arctic habitats. Using population genetics, we show that ...
    • Broadening the horizon of size selectivity in trawl gears 

      Stepputtis, Daniel; Herrmann, Bent; Mieske, Bernd; Santos, Juan (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-12)
      The discussion of alternative harvest patterns in commercial fisheries has been raised by stock assessment and fishery modelers, especially in the wider context of balanced harvesting. But often, these theoretical approaches propose alternative exploitation patterns that are difficult to achieve within the current limitations in the selectivity characteristics of fishing gears, such as trawl gears. ...
    • Building fisheries institutions through collective action in Norway 

      Jentoft, Svein; Finstad, Bjørn-Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-16)
      Institutions, and the collective action that created them and which they enable, can play an important role in poverty eradication. In Norway, the Raw Fish Act passed in 1938 in the aftermath of the international financial crisis that hit the fishing industry hard, and the fishers’ cooperative sales-organizations that it authorized testify to this. Most of all, they helped to empower fishers in their ...
    • Bycatch reduction in the Norwegian deep-water shrimp (Pandalus borealis) fishery with a double grid selection system 

      Larsen, Roger B.; Herrmann, Bent; Sistiaga, Manu Berrondo; Brinkhof, Jesse; Grimaldo, Eduardo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-25)
      Trawlers targeting Deep-water Shrimp (<i>Pandalus borealis</i>) in the North Atlantic use a Nordmøre sorting grid ahead of a small-meshed codend. Based on experimental fishing, the effect of adding a 9 mm spaced release grid behind the mandatory 19 mm spaced Nordmøre sorting grid, was determined. The performance in terms of size selection of the release grid and the two grids combined were assessed ...
    • Can a large-mesh sieve panel replace or supplement the Nordmøre grid for bycatch mitigation in the northeast Atlantic deep-water shrimp fishery? 

      Jacques, Nadine; Herrmann, Bent; Larsen, Roger B.; Sistiaga, Manu Berrondo; Brčić, Jure; Gökçe, Gökhan; Brinkhof, Jesse (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-26)
      The Nordmøre grid is the principle bycatch mitigation device in many shrimp trawl fisheries. However, in several of these fisheries, bycatch is a problem because small sized fish can pass through the grid and enter the codend together with the targeted shrimp. One such fishery is the Northeast Atlantic deep-water shrimp (<i>Pandalus borealis</i>) fishery, where the use of a Nordmøre grid is mandatory. ...
    • Carbon, Nitrogen and Sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysis 

      Pinzone, Marianna; Acquarone, Mario; Huyghebaert, Loreen; Sturaro, Nicolas; Michel, Loïc N.; Siebert, Ursula; Das, Krishna (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-15)
      <p><i>Rationale</i>: Intrinsic biogeochemical markers, such as stable isotope ratios of carbon, nitrogen and sulphur, are increasingly used to trace the trophic ecology of marine top predators. However, insufficient knowledge of fractionation processes in tissues continues to hamper the use of these markers.</p> <p><i>Methods</i>: We performed a controlled feeding experiment with eight juvenile ...