Now showing items 205-224 of 372

    • Making ecosystem-based management operational: Integrated monitoring in Norway 

      Knol, Maaike (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Ecosystem-based management presupposes that the state and development trends of an ecosystem - or of ecological quality - can be measured and followed. Currently, in many coastal countries there exists a variety of monitoring practices that are concerned with single issues only, and are not an integrated part of a larger framework. With the trend towards more comprehensive forms of ecosystem-based ...
    • Making the Arctic predictable: The changing information infrastructure of Arctic weather and sea ice services 

      Knol, Maaike; Arbo, Peter; Duske, Paula; Gerland, Sebastian; Lamers, Machiel; Pavlova, Olga; Sivle, Anders Doksæter; Tronstad, Stein (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-19)
      This paper explores the changing infrastructure around weather and sea ice information provisioning for Arctic marine areas. Traditionally, the most important providers of operational information on sea ice and weather conditions are the national sea ice and meteorological services. More recently, the community of Arctic information providers has become more heterogeneous with the establishment of ...
    • Mapping uncertainties in the upstream : the case of PLGA Nanoparticles in Salmon Vaccines. 

      Nielsen, Kåre Nolde; Fredriksen, Børge Nilsen; Myhr, Anne Ingeborg (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The diversity of nanotechnologies and of the governance challenges that their applications raise calls for exploration and learning across different cases. We present an Upstream Oversight Assessment (UOA) of expected benefits and potential harms of nanoparticles made of a synthetic polymer (PLGA) to improve vaccines for farmed salmon. Suggested by Jennifer Kuzma and colleagues, an UOA may help ...
    • The marine biodiscovery pipeline and ocean medicines of tomorrow 

      Jaspars, Marcel; de Pascale, Donatella; Andersen, Jeannette Hammer; Reyes, Fernando; Crawford, Alex D.; Ianora, Adrianna (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-01)
      Marine organisms possess the capacity to produce a variety of unique and biologically potent natural products for treating human diseases, many of which are currently commercially available or are in advanced clinical trials. Here we provide a short review on progress in the field and discuss a case study of an EU-funded project, PharmaSea, which aims to discover novel products for the treatment of ...
    • Marine protected areas in a welfare-based perspective 

      Reithe, Siv; Armstrong, Claire W.; Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-05-04)
      Assuming a broad set of fisheries management goals, this paper analyzes the implementation of a marine protected area (MPA) together with open access outside, applying a bioeconomic model that ensures unchanged growth post-MPA. Taking into account that conservation and restoration, food security, employment and social surplus are amongst the objectives that many managers include in fisheries management, ...
    • Marine reserve creation and interactions between fisheries and capture-based aquaculture: A bio-economic model analysis 

      Bui, Bich Xuan; Armstrong, Claire W. (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 ...
    • Marine spatial planning: risk or opportunity for fisheries in the North Sea? 

      Jentoft, Svein; Knol, Maaike (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      The North Sea is one of the busiest marine areas in the world. It is also a major fisheries ground. Bordered by seven countries with their own spatial uses and claims, the stage is set for complex and demanding governance challenges. Recent decades have also seen user groups multiply, competition for space and resources increase, and the pressure on the marine environment and its living natural ...
    • Maximum Yield Fishing and Optimal Fleet Composition. A Stage Structured Model Analysis With an Example From the Norwegian North-East Arctic Cod Fishery 

      Helgesen, Irmelin Slettemoen; Skonhoft, Anders; Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-01)
      A stage structured fishery model with three stages; recruits, immature fish and mature fish is formulated and utilized to analyse maximum sustainable yield (MSY) and optimal harvesting composition in a fishery with two heterogeneous fleets. The stage structured model developed bundles the age classes found in age structured models into stage classes based on their level of maturity, but also the ...
    • Mechanical killing and bleeding 

      Midling, Kjell Øyvind; Olsen, Stein Harris (Conference object; Konferansebidrag, 2013-10-09)
    • Mechanical killing and bleeding 

      Midling, Kjell Øyvind; Olsen, Stein Harris (Conference object; Konferansebidrag, 2013-10-09)
    • Mechanistic model identifies increasing light availability due to sea ice reductions as cause for increasing macroalgae cover in the Arctic 

      Scherrer, Kim Josefin Niklasdotter; Kortsch, Susanne; Varpe, Øystein; Weyhenmeyer, Gesa Antonie; Gulliksen, Bjørn; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-04)
      In the Arctic, rising seawater temperatures and increasing underwater light caused by reductions in sea ice cover are expected to change the structure of arctic marine communities. Substantial, sometimes sudden, increases in macroalgal productivity and biomass have already been observed in arctic rocky bottom communities. These macroalgal responses have been attributed to increasing temperature and ...
    • Med lov og skjønn skal kysten forvaltes 

      Solås, Ann-Magnhild; Johnsen, Jahn Petter (Research report; Forskningsrapport, 2014)
      Gjennomgangen av lov- og regelverket viser at det skal ivareta mange hensyn. Lov- og regelverket er komplekst og følgelig vil også beslutningsprosessene være preget av denne kompleksiteten. De ulike lovene og forskriftene, og de bestemmelsene i hver enkelt lov og forskrift søker å ivareta både politiske, administrative og faglige hensyn. De forvaltes også på ulike politiske og administrative ...
    • Mellom marked og nettverk: Om fiskerirekruttering og sysselsettingsystemer i fiske 

      Johnsen, Jahn Petter; Vik, Jostein (Journal article; Tidsskriftartikkel; Peer reviewed, 2008-08-15)
      Denne rapporten er skrevet som en del av prosjektet "Networks or markets? The recruitment challenges in future fisheries and marine industries"; finansiert av Norges forskningsråd og Fiskeri og havbruksnæringens forskningsfond. Formålet med rapporten er å presentere kvantitativt datamateriale om sysselsettingssystemet i fiskeflåten. Rapporten bygger på et datamateriale fremskaffet gjennom telefonintervjuer ...
    • Metabarcoding of shrimp stomach content: harnessing a natural sampler for fish biodiversity monitoring 

      Siegenthaler, Andjin; Wangensteen Fuentes, Owen Simon; Soto, Ana Z.; Benvenuto, Chiara; Corrigan, Laura; Mariani, Stefano (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-28)
      Given their positioning and biological productivity, estuaries have long represented key providers of ecosystem services, and consequently remain under remarkable pressure from numerous forms of anthropogenic impact. The monitoring of fish communities in space and time are one of the most widespread and established approaches to assess the ecological status of estuaries and other coastal habitats, ...
    • Microbial danger signals control transcriptional induction of distinct MHC class I L lineage genes in Atlantic salmon 

      Svenning, Steingrim; Gondek-Wyrozemska, Agata T; van der Wal, Yorick Andreas; Robertsen, Børre; Jensen, Ingvill; Jørgensen, Jorunn B; Edholm, Eva-Stina Isabella (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-11)
      Antigen processing and presentation by major histocompatibility complex (MHC) molecules is a cornerstone in vertebrate immunity. Like mammals, teleosts possess both classical MHC class I and multiple families of divergent MHC class I genes. However, while certain mammalian MHC class I-like molecules have proven to be integral in immune regulation against a broad array of pathogens, the biological ...
    • Microbial trimethylamine-N-oxide as a disease marker: something fishy? 

      Landfald, Bjarne; Valeur, Jørgen; Berstad, Arnold; Raa, Jan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-19)
      Production of trimethylamine-N-oxide (TMAO) via the gut microbiota has recently been proposed as an important pathophysiological mechanism linking ingestion of ‘unhealthy foods’, such as beef (containing carnitine) and eggs (containing choline), and the development of atherosclerosis. Hence, TMAO has gained attention as a novel biomarker for cardiovascular disease. However, fish and seafood contain ...
    • Middlemen: good for resources and fishermen? 

      Pham, Thi Thanh Thuy; Flaaten, Ola; Skonhoft, Anders (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-16)
      This paper studies the role of middlemen in open-access fisheries and how the organization of the supply chains affects resource exploitation and the level and distribution of economic rent. Imperfect competition among middlemen can help ensure that fish stocks are not depleted, which is typically the case in open-access fisheries with competitive markets. Middlemen with market power can also induce ...
    • Modelling gear and fishers size selection for escapees, discards, and landings: a case study in Mediterranean trawl fisheries 

      Mytilineou, Chryssi; Herrmann, Bent; Mantopoulou-Palouka, Danai; Sala, Antonello; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-19)
      Gear selectivity and discards are important issues related to fisheries management but separately modelled. This work examines for the first time the overall size-selection pattern on the total amount of individuals of a species entering the trawl codend. An innovative approach was used based on modelling the escapement through the codend in the sea and the subsequently selection process by the ...
    • Molecular gut content analysis of different spider body parts 

      Macías-Hernández, Nuria; Athey, Kacie; Tonzo, Vanina; Wangensteen Fuentes, Owen Simon; Arnedo, Miquel A.; Harwood, James D. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-30)
      Molecular gut-content analysis has revolutionized the study of food webs and feeding interactions, allowing the detection of prey DNA within the gut of many organisms. However, successful prey detection is a challenging procedure in which many factors affect every step, starting from the DNA extraction process. Spiders are liquid feeders with branched gut diverticula extending into their legs and ...
    • Morphological update on Calycina marina (Pezizellaceae, Helotiales, Leotiomycetes), a new combination for Laetinaevia marina 

      Baral, Hans-Otto; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-05)
      Laetinaevia marina is a frequent ascomycetous fungus that is widely distributed on the seashores of Scandinavia and Great Britain. It grows on fronds of Fucales (Phaeophyceae) that are washed ashore and lie decaying at the high tide mark or further up on the beach. It is one of the few described marine discomycetes. In the current generic concept it is regarded as a member of Naevioideae ...