Spania har en lang tradisjon for å spise saltfisk av torsk, og de kan velge fisk produsert fra flere land og med flere produksjonsmetoder. Island og Færøyene oppnår høyere kilopris for sine produkter enn der Norge gjør i Spania. Saltfisk er et produkt det tar tid å lage god mat av da den må vannes ut før den kan bli til en matrett. Dette har ført til at lettsaltet fisk og utvannede produkter har ...

Abstract: As various concerned scientists and organisations such as the UN, the World Bank, WFP, and FAO point out, global food security progressively turns out to be one of the major challenges that our human family faces nowadays. Among other factors, this is a function of rapid population growth, decreasing global food production due climate change. As they have always been an important ...

The expansion of the aquaculture sector around the world has resulted in a growth of the demand for fishmeal (FM). Due to the limited sea resources, the price of FM has risen significantly in past years pushing the sector to find substitutes. In this context, insects attract more and more industrial and scientific attention as they have many advantages. First, with around one million species estimated, ...

Marine oljer og fettsyrer har blitt en begrenset ressurs, og blir dermed erstattet av plantebaserte fettsyrer i form av rapsolje i fôr til atlantisk laks (Salmo salar L.). I dette arbeidet har vi studert den biologiske effekten av fire forskjellige dietter på tarmhelse hos laks i ferskvannsfase. Diettene bestod av enten ren rapsolje (RO), ren fiskeolje fra ansjos (AO), en blanding av rapsolje og ...

Intresset för sportfiske efter lax har växt och blivigt till en stor näring i Norge. I takt med högre fisketryck i älvarna samtidigt som antalet återvändande lekmogen lax från havet har minskat har C&R växt fram som en allt vanligare ideologi och förvaltningsmetod. Denna typ av förvaltningsmetod passar mycket bra överens med de tre grundpelarna norsk naturförvaltning bygger på, biologiska, sociala ...

We seek to disentangle the effect of knowledge about an environmental good on respondents' propensity to ignore one or more attributes on the choice cards in a discrete choice experiment eliciting people's preferences for increased protection of cold-water corals in Norway. We hypothesize that a respondent's level of knowledge influences the degree to which she ignores attributes. Respondents ...

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, ...

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 ...

The first few months of life is the most vulnerable period for fish and their optimal hatching time with zooplankton prey is favored by natural selection. Traditionally, however, prey abundance (i.e., zooplankton density) has been considered important, whereas prey nutritional composition has been largely neglected in natural settings. High‐quality zooplankton, rich in both essential amino acids ...

In the era of “Anthropocene defaunation,” large species are often no longer detected in habitats where they formerly occurred. However, it is unclear whether this apparent missing, or “dark,” diversity of megafauna results from local species extirpations or from failure to detect elusive remaining individuals. We find that despite two orders of magnitude less sampling effort, environmental DNA (eDNA) ...