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norskNorges fiskerihøgskole: Nye registreringer
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The importance of ecological networks in multiple-stressor research and management
(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 ... -
Musculoskeletal symptoms among workers in the commercial fishing fleet of Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-25)<i>Background</i>: Fishers exposed to unfavourable environmental conditions may suffer negative health ef- fects. This study aimed to identify musculoskeletal symptoms in professional fishers in Norway using data from several sources; register data, telephone survey and questionnaire.<p> <p><i>Materials and methods</i>: Professional fishers (n = 25,971) registered in the period 2008-2013 were ... -
Trading off co-produced marine ecosystem services: Natural resource industries versus other use and non-use ecosystem service values
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-22)Ecosystem services (ESs) may be both non-market and market based. Both may provide important input to societal welfare. Using natural resources, or converting nature in the development of market based ES may impact the access to non-market or more conservationist ES, and vice versa. How does the general public trade-off between these two types of ES? We use two valuation studies in Northern Norway ... -
Expert Assessment of Risks Posed by Climate Change and Anthropogenic Activities to Ecosystem Services in the Deep North Atlantic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-24)Sustainable development of the ocean is a central policy objective in Europe through the Blue Growth Strategy and globally through parties to the Convention on Biological Diversity. Achieving sustainable exploitation of deep sea resources is challenged due to the huge uncertainty around the many risks posed by human activities on these remote ecosystems and the goods and services they provide. We ... -
Middlemen: good for resources and fishermen?
(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 ... -
Resilience to exogenous shocks in environmental management regimes in the Arctic – lessons learned from survivors
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-13)A changing climate will impact not only the environment but all levels of governance thereof, including the context of the close to 400 multilateral environmental management agreements signed since the year 2000. For the Ocean, researchers project that the increasing sea surface temperatures will facilitate large changes in the marine food web, including large shifts in distribution patterns of ... -
Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation
(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 ... -
A participatory scenario method to explore the future of marine social‐ecological systems
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-01)Anticipating future changes in marine social‐ecological systems (MSES) several decades into the future is essential in the context of accelerating global change. This is challenging in situations where actors do not share common understandings, practices, or visions about the future. We introduce a dedicated scenario method for the development of MSES scenarios in a participatory context. The objective ... -
Can a large-mesh sieve panel replace or supplement the Nordmøre grid for bycatch mitigation in the northeast Atlantic deep-water shrimp fishery?
(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. ... -
Applications, limitations, costs, and benefits related to the use of blockchain technology in the food industry
(Research report; Forskningsrapport, 2019-02)This report was commissioned to outline applications, limitations, costs, and benefits related to the use of blockchain technology in the food industry, and in particular to evaluate the pros and cons of having a blockchain-based food traceability system compared to a traditional electronic traceability system. The key concepts relating to traceability, and the components of a food traceability ... -
Social-Cultural Ecosystem Services of Sea Trout Recreational Fishing in Norway
(Journal article; Peer reviewed, 2019-04-24)This paper explores the ecosystem services provided by anadromous brown trout (often termed sea trout) populations in Norway. Sea trout is an important species in both freshwater and marine ecosystems and provides important demand-driven ecological provisioning and socio-cultural services. While the sea trout once provided an important provisioning service through a professional fishery and subsistence ... -
Boreal marine fauna from the Barents sea disperse to Arctic Northeast Greenland
(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 ... -
Industry-led fishing gear development: Can it facilitate the process?
(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 ... -
Senja vs. Vesterålen. Samarbeidet mellom fiskere og fiskemottak om kvalitet på landet torsk (gadus morhua)
(Master thesis; Mastergradsoppgave, 2018-05-14)Det er gjort undersøkelser på hvordan samarbeidet for landet kvalitet fungerer innad i regionene Senja og Vesterålen mellom fiskere og fiskemottak. Undersøkelsen ble gjort ut fra vintersesongen januar til april i 2017. Det er tatt utgangspunkt i faktorene kompetanse, håndtering av fisk, redskap, konkurranse, kommunikasjon og pris, for å se hvordan de jobber frem kvalitet på disse områdene. Det er i ... -
Functional feed for Atlantic salmon (Salmo salar L.). Effect on gastrointestinal tract during parr-smolt transformation and susceptibility to infectious pancreatic necrosis virus (IPNV)
(Master thesis; Mastergradsoppgave, 2014-05-15)Atlantic salmon (Salmo salar L.) aquaculture is a relatively new industry in Norway, dating back to the 1960s. It has since then developed in to a profitable industry. Continuous improvement of hygiene control, knowledge of fish nutrition and health has been important for this development. Fish nutrition is a research field that has been increasingly focused on partly due to more use of plant raw ... -
Kvaliteten på norsk saltfisk i Portugal. En studie av hvilke faktorer som oppfattes som viktigst for kvaliteten på saltfisk, sett fra norsk og portugisisk ståsted, samt vurderinger av hvorvidt dagens leverte kvalitet kan tilpasses nye produktkategorier.
(Master thesis; Mastergradsoppgave, 2018-05-14)Målet med denne undersøkelsen var å finne ut hvilke faktorer norske og portugisiske aktører mener er viktigst for kvaltieten på saltfisk, og hvordan dagens leverte kvalitet kan tilpasses nye produktkategorier. Oppgaven bygger på intervjuer med totalt 15 personer med ulik tilknytning til saltfisk og klippfisk i Norge og Portugal. Resultatene av undersøkelsene viste at de norske og portugisiske ... -
Mikrobiota hos grønn kråkebolle, Strongylocentrotus droebachiensis. Fokus på identifikasjon av bakteriestammer
(Master thesis; Mastergradsoppgave, 2017-05-15)It has been reported that the green sea urchin, Strongylocentrotus droebachiensis, can be affected by symptoms that is associated with the disease called “bald sea urchin disease”. However, no pathogen for sea urchins are known in the literature, but a working hypothesis claims that species of the Vibrio splendidus clade can be associated with symptoms characterized as bald sea urchin disease in S. ... -
Mechanistic model identifies increasing light availability due to sea ice reductions as cause for increasing macroalgae cover in the Arctic
(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 ... -
Comparing size selectivity of traditional and knotless diamond-mesh codends in the Iceland redfish (Sebastes spp.) fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-30)The size selectivity and usability of two diamond mesh codends, a traditional two-panel codend versus an experimental four-panel ultra-cross knotless mesh codend, were compared using the covered codend method in the Iceland redfish (<i>Sebastes norvegicus and S. viviparous</i>) fishery. Results showed that there was no significant difference in size selectivity between the codends at lengths greater ... -
The transformation of the oceans and the future of marine social science
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-13)The oceans have become a juncture of great visions of blue growth as well as strong environmental concern. This paper discusses the essential role of the social sciences as the oceans increasingly emerge as a contested social arena. The marine social sciences have generated a vast knowledge about the development of fisheries and the implications of fisheries policies on coastal communities. We review ...
