Blar i Brage IMR på forfatter "Juell, Jon-Erik"
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Akustisk mengdemåling av oppdrettslaks
Juell, Jon-Erik; Fosseidengen, Jan Erik (Fisken og havet, Research report, 1995)Continuous monitoring of the biomass in salmon cages is likely to increase the production efficiency. It would optimize density-dependent farm procedures, e.g food and drug administration, and provide a possibility for ... -
Dyrevelferdsmessige konsekvenser av vaksinasjon av fisk - effekter og bivirkninger.
Berg, Arne; Bergh, Øivind; Fjelldal, Per Gunnar; Hansen, Tom; Juell, Jon-Erik; Nerland, Audun H. (Fisken og havet, Research report, 2006) -
Fluctuating sea-cage environments modify the effects of stocking densities on production and welfare parameters of Atlantic salmon (Salmo salar L.)
Oppedal, Frode; Vågseth, Tone; Dempster, Tim; Juell, Jon-Erik; Johansson, David (Journal article; Peer reviewed, 2011-05-21)Stocking densities are commonly used to set limits for the production of fish in sea-cages, yet limited information exists to assess how environmental fluctuations modify the effects of stocking densities on the production ... -
Fluctuating sea-cage environments modify the effects of stocking densities on production and welfare parameters of Atlantic salmon (Salmo salar L.)
Oppedal, Frode; Vågseth, Tone; Dempster, Tim; Juell, Jon-Erik; Johansson, David (Journal article; Peer reviewed, 2011-05-21)Stocking densities are commonly used to set limits for the production of fish in sea-cages, yet limited information exists to assess how environmental fluctuations modify the effects of stocking densities on the production ... -
Gode spørsmål - og svar...
Gjøsæter, Harald; Juell, Jon-Erik; Soldal, Aud Vold (Others, 2005) -
Havbeite med laks etter "Kystmodellen"
Skilbrei, Ove; Holm, Marianne; Juell, Jon-Erik (Havforskningsnytt, Working paper, 1994) -
Hydroacoustic detection of food waste - a method to estimate maximum food intake of fish populations in sea cages
Juell, Jon-Erik (ICES CM Documents;1990/F:7, Working paper, 1990)A linear relationship between echo energy and amount of salmon dry food was established. Measurements were carried out both for food batches (5-400 gram) and single pellets. For a certain amount of food, the echo energy ... -
Hydroakustisk overvåkning og styring av lakseproduksjon
Juell, Jon-Erik; Lindem, Torfinn; Fosseidengen, Jan Erik; Houari, Driss Al; Bjordal, Åsmund (Fisken og havet, Research report, 1995)Efficient and "clean" cage-rearing of Atlantic salmon requires good monitoring- and controlroutines. Fullscale tests of a the combined monitoring and feeding system "CageEye", indicated that active use of the system will ... -
Laksens vertikalvandring styrer fôrautomatene
Bjordal, Åsmund; Juell, Jon-Erik (Havforskningsnytt, Working paper, 1991) -
Lokalisering av oppdrettsanlegg
Ervik, Arne; Mortensen, Stein H.; Juell, Jon-Erik (Havforskningstema, Working paper, 2003) -
Lys og temperatur påvirker fiskens adferd - har det konsekvenser for fisketetthet og lyssetting?
Oppedal, Frode; Juell, Jon-Erik (Havforskningsnytt, Working paper, 2006) -
Merd-miljø og fiskevelferd i lakseproduksjon på kyst- og fjordlokaliteter på Vestlandet
Johansson, David; Juell, Jon-Erik; Oppedal, Frode; Stiansen, Jan Erik; Fosseidengen, Jan Erik (Fisken og havet, Research report, 2004)This survey give detailed information about the complex variation of the physical, biological and chemical variation in environment at typical fjord and coastal farming sites in the autumn. Large variations with depth and ... -
Reduced environmental impact of antibacterial agents applied in fish farms using the LiftUp feed system or a hydroacoustic feed detector
Ervik, Arne; Samuelsen, Ole Bent; Juell, Jon-Erik; Sveier, H. (Journal article; Peer reviewed, 1994-07-28)High-performance liquid chromatography was used to quantify residues of oxolinic acid and flumequine in muscle of wild fish caught in the vicinity of fish farms using the LiftUp feed collector system or a hydroacoustic ... -
Velferd og trivsel hos oppdrettsfisk
Kristiansen, Tore S.; Juell, Jon-Erik; Oppedal, Frode (Havforskningstema, Working paper, 2003)