Now showing items 170-189 of 372

    • The impact of coastal grabbing on community conservation – a global reconnaissance 

      Bavinck, Jan Maarten; Berkes, Fikret; Charles, Anthony; Dias, Ana Carolina Esteves; Doubleday, Nancy; Nayak, Prateep; Sowman, Merle (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 ...
    • Impact of Multiple Ecological Stressors on a Sub-Arctic Ecosystem: No Interaction Between Extreme Winter Warming Events, Nitrogen Addition and Grazing 

      Bokhorst, Stef; Berg, Matty P.; Edvinsen, Guro Kristine; Ellers, Jacintha; Heitman, Amber; Jaakola, Laura; Mæhre, Hanne K; Phoenix, Gareth K.; Tømmervik, Hans; Bjerke, Jarle W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-30)
      Climate change is one of many ongoing human-induced environmental changes, but few studies consider interactive effects between multiple anthropogenic disturbances. In coastal sub-arctic heathland, we quantified the impact of a factorial design simulating extreme winter warming (WW) events (7 days at 6–7∘C) combined with episodic summer nitrogen (+N) depositions (5 kg N ha-1) on plant winter physiology, ...
    • The importance of ecological networks in multiple-stressor research and management 

      Bruder, Andreas; Frainer, André; Rota, Thibaut; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-07)
      Multiple stressors are increasingly affecting organisms and communities, thereby modifying ecosystems' state and functioning. Raising awareness about the threat from multiple stressors has increased the number of experimental and observational studies specifically addressing consequences of stressor interactions on biota. Most studies measure the direct effects of multiple stressors and their ...
    • Industry-led fishing gear development: Can it facilitate the process? 

      Veiga-Malta, Tiago; Feekings, Jordan; Herrmann, Bent; Krag, Ludvig A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-16)
      In the reformed technical measures regulation, the European Union proposed a greater involvement of the fishing industry in the different managerial aspects of fisheries. However, having the industry as a main actor in gear development presents a new suite of challenges. The industry, while addressing an issue in the fishery, can modify several aspects of a fishing gear simultaneously, without ...
    • Infectious pancreatic necrosis virus proteins VP2, VP3, VP4 and VP5 antagonize IFNa1 promoter activation while VP1 induces IFNa1 

      Lauksund, Reidunn Silje; Greiner-Tollersrud, Linn; Chang, Chia Jung; Robertsen, Børre (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Infectious pancreatic necrosis virus (IPNV) is one of the major viral pathogens causing disease in farmed Atlantic salmon worldwide. In the present work we show that several of the IPN proteins have powerful antagonistic properties against type I IFN induction in Atlantic salmon. Each of the five IPNV genes cloned into an expression vector were tested for the ability to influence activation of the ...
    • Influence of preservation methods, sample medium and sampling time on eDNA recovery in a neotropical river 

      Sales, Naiara Guimaraes; Wangensteen Fuentes, Owen Simon; Carvalho, Daniel C.; Mariani, Stefano (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-31)
      Environmental DNA (eDNA) has rapidly emerged as a promising biodiversity monitoring technique, proving to be a sensitive and cost‐effective method for species detection. Despite the increasing popularity of eDNA, several questions regarding its limitations remain to be addressed. We investigated the effect of sampling medium and time, and preservation methods, on fish detection performance based on ...
    • Influence of soak time on catch performance of commercial creels targeting Norway lobster (Nephrops norvegicus) in the Mediterranean Sea 

      Brčić, Jure; Herrmann, Bent; Mašanović, Marina; Šifner, Svjetlana Krstulović; Škeljo, Frane (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-13)
      Creel catch performance is known to be affected by the soak time in many fisheries. If creels maintained their efficiency over longer periods, increase in soak time should lead to proportional increase in catch quantity. However, the exact shape of this relationship is unknown for creel fisheries targeting Norway lobster (Nephrops norvegicus). If it was known fishermen could adjust their fishing ...
    • The influence of weight and gender on intestinal bacterial community of wild largemouth bronze gudgeon (Coreius guichenoti, 1874) 

      Li, Xuemei; Yan, Qingyun; Ringø, Einar; Wu, Xingbing; He, Yongfeng; Yang, Deguo (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-22)
      Background: Largemouth bronze gudgeon (Coreius guichenoti) is of economic importance in China, distributed in upstream regions of the Yangtze River in China. But it has recently dramatically declined and is close to elimination. However, there is little knowing about the character of its intestinal microbiota. This study was conducted to elucidate the intestinal microbiota of wild largemouth bronze ...
    • Informing management strategies for a reserve: Results from a discrete choice experiment survey 

      Bui, Bich Xuan; Sandorf, Erlend Dancke; Aanesen, Margrethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-18)
      It is well-known that operating within the boundaries of a national park provides commercial actors with the opportunity to charge a price premium, though this has to a lesser degree been demonstrated for marine protected areas. We estimate national tourists' willingness-to-pay a price premium for boat trips in the Nha Trang Bay Marine Protected Are, Vietnam, using a discrete choice experiment. Our ...
    • Institutional challenges for effective governance of consumptive wildlife tourism: case studies of marine angling tourism in Iceland and Norway 

      Solstrand, Maria-Victoria (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-08)
      Good governance of consumptive wildlife tourism, a complex socio-ecological system, requires finding the right balance between natural resource and tourism management. Fishing takes the lead globally as the most popular product offering within consumptive wildlife tourism, and both Iceland and Norway offer a marine angling tourism product. The two countries offer similar pristine Arctic fjord ...
    • Institutional quality and catch performance of fishing nations 

      Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The relationship between annual growth in the catches of fishing nations and the quality of the institutions of those nations is analyzed. Catch volumes are used as a proxy for development, since economic performance indicators based on a common set of definitions do not exist. 49 major fishing nations were selected for this study, including 22 OECD countries and several developing countries. Three ...
    • Intensive aquaculture and sustainable regional development in the Arctic region – from controversy to dialogue (AquaLog) 

      Hersoug, Bjørn; Karlsen, Kine Mari; Solås, Ann-Magnhild; Kvalvik, Ingrid; Johnsen, Jahn Petter; Young, Nathan; Brattland, Camilla; Schreiber, Dorothee; Simonsen, Knud; Olofsson, Erik; Thorarensen, Helgi (Research report; Forskningsrapport, 2017-08-28)
      The main objective of the AquaLog project is to understand factors and forces that influence the aquaculture controversy in the Arctic communities. This report summarizes the second workshop in Vancouver, Canada 23-27th April 2017. The project is funded by the Nordic Council of Minister and the Norwegian Fram Centre.
    • Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation 

      Blanco Gonzalez, Enrique; Espeland, Sigurd Heiberg; Jentoft, Sissel; Hansen, Michael Møller; Robalo, Joana I.; Stenseth, Nils Christian; Jorde, Per Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-09)
      Translocation of organisms within or outside its native range carries the risk of modifying the community of the recipient ecosystems and induces gene flow between locally adapted populations or closely related species. In this study, we evaluated the genetic consequences of large‐scale translocation of cleaner wrasses that has become a common practice within the salmon aquaculture industry in ...
    • An interdisciplinary insight into the human dimension in fisheries models. A systematic literature review in a European Union context 

      Weber, Charlotte Teresa; Borit, Melania; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-02)
      Fisheries are complex adaptive social-ecological systems (SES) that consist of interlinked human and ecosystems. They have mainly been studied by the natural sciences and focused on the ecosystem. However, rising concerns about sustainability and increasing complexity of societal challenges often require an understanding of fisheries in a SES context. For this purpose, the study of the human ...
    • Interdisciplinary optimism? Sentiment analysis of Twitter data 

      Weber, Charlotte Teresa; Syed, Shaheen (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-31)
      Interdisciplinary research has faced many challenges, including institutional, cultural and practical ones, while it has also been reported as a ‘career risk’ and even ‘career suicide’ for researchers pursuing such an education and approach. Yet, the propagation of challenges and risks can easily lead to a feeling of anxiety and disempowerment in researchers, which we think is counterproductive to ...
    • Interkommunale planleggingsprosesser – et bedre verktøy for lokalitetstilgang 

      Robertsen, Roy; Kvalvik, Ingrid; Andreassen, Otto; Hersoug, Bjørn; Johnsen, Jahn Petter (Research report; Forskningsrapport, 2014-10-07)
      Interkommunalt samarbeid i sjø er relativt nytt i forhold til interkommunalt samarbeid på andre områder. Det er likevel klart at mange kommuner, særlig små distriktskommuner mangler eller har liten plankompetanse og derfor kan ha stor nytte av samarbeid på plansiden. En utfordring med interkommunal planlegging er imidlertid spørsmålet om kommunal styring. For politisk ledelse i kommunen vil det ofte ...
    • Intestinal microbiome and its potential functions in bighead carp (Aristichthys nobilis) under different feeding strategies 

      Li, Xuemei; Zhu, Yongjiu; Ringø, Einar; Wang, Xuge; Gong, Jinling; Yang, Deguo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-03)
      Bighead carps (<i>Aristichthys nobilis</i>) were divided into four groups with different feeding strategies: group A, nature live food only (fertiliser only, 200 g urea + 160 g ethylamine phosphate + 250 g Huangjintai bio-fertiliser); group B, nature live food + 1/2 formulated feed; group C, nature live food + formulated feed; and group D, formulated feed only. The intestinal microbiomes of the ...
    • Introduction to the themed issue - Poststructural approaches to fisheries 

      Mather, Charles; Johnsen, Jahn Petter; Sønvisen, Signe Annie; Sridhar, Aarthi; Stephen, Johny (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      This themed issue of papers for Maritime Studies emerges out of a special session of the MARE 2015 conference held in Amsterdam. The aim of this Introduction is to provide a brief background to poststructural scholarship drawing on examples and cases from research on fisheries. We argue that a poststructural sensibility has made an important impact on scholars interested in fisheries issues even ...
    • Investigating fish behavioural responses to LED lights in trawls and potential applications for bycatch reduction in the Nephrops-directed fishery 

      Melli, Valentina; Krag, Ludvig Ahm; Herrmann, Bent; Karlsen, Junita Diana (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-18)
      Light-emitting diodes (LEDs) have been tested in trawl fisheries to reduce the bycatch of unwanted species through behavioural stimulation. Previous studies used LED lights to either highlight escaping routes or increase the contact rate with square-mesh panels. However, phototactic responses (moving towards or away from light sources) to LED lights could also be exploited to separate species during ...
    • IPNV with high and low virulence: host immune responses and viral mutations during infection 

      Skjesol, Astrid; SkjÆveland, ingrid; Elnæs, Marianne; Timmerhaus, Gerrit Frantz; Fredriksen, Børge Nilsen; Jørgensen, Sven Martin; Krasnov, Aleksei; Jørgensen, Jorunn B (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Infectious pancreatic necrosis virus (IPNV) is an aquatic member of the Birnaviridae family that causes widespread disease in salmonids. IPNV is represented by multiple strains with markedly different virulence. Comparison of isolates reveals hyper variable regions (HVR), which are presumably associated with pathogenicity. However little is known about the rates and modes of sequence divergence and ...