Browsing by Author "Fjørtoft, Helene Børretzen"
Now showing items 1-9 of 9
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Differential changes in growth patterns of anadromous brown trout and Atlantic salmon from the River Etneelva over a 25-year period
Fjørtoft, Helene Børretzen; Borgstrøm, Reidar; Skaala, Øystein (Journal article; Peer reviewed, 2013-10-15)Freshwater and marine growth of anadromous brown trout (Salmo trutta) and Atlantic salmon (Salmo salar) from the River Etneelva was analysed in relation to river, fjord and ocean temperatures during the periods 1976-1982 ... -
Fargemetoder for prøvepreparering ved histologiske undersøkelser og fluoresense in situ hybridisering for studier av amøbegjellesykdom (AGD) i gjellevev og lakselus
Tveten, Ann-Kristin; Fjørtoft, Helene Børretzen; Olsen, Magne Hauge; Venås, Leonardo Areas; Isaksson, Aimee Kathrina Soto (Chapter, 2015)Målet med studien var å etablere god metoder for oppbevaring og fiksering av gjellevev og lakselus for patologiske studier. Oppbevaring av prøvemateriale over lengre perioder kan føre til at vevsstrukturen svekkes og vevet ... -
The growth of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) from the river Etneelva, Norway. A comparison of the periods 1976-1982 and 2000-2007.
Fjørtoft, Helene Børretzen (Master thesis, 2010-11-12)The populations of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) are declining in Europe. For both species the key seems to be found in the saltwater stage of their life cycle. Two major changes have occurred ... -
The mechanism (Phe362Tyr mutation) behind resistance in Lepeophtheirus salmonis pre-dates organophosphate use in salmon farming
Kaur, Kiranpreet; Besnier, Francois; Glover, Kevin; Nilsen, Frank; Aspehaug, Vidar Teis; Fjørtoft, Helene Børretzen; Horsberg, Tor Einar (Journal article; Peer reviewed, 2017) -
The mechanism (Phe362Tyr mutation) behind resistance in Lepeophtheirus salmonis pre-dates organophosphate use in salmon farming
Kaur, Kiranpreet; Besnier, Francois; Glover, Kevin; Nilsen, Frank; Aspehaug, Vidar Teis; Fjørtoft, Helene Børretzen; Horsberg, Tor Einar (Journal article; Peer reviewed, 2017)The salmon louse is an ectoparasitic copepod of salmonids in the marine environment, and represents a global challenge to salmon aquaculture. A major issue is the reliance of the industry on a limited number of chemicals ... -
The mechanism (Phe362Tyr mutation) behind resistance in Lepeophtheirus salmonis pre-dates organophosphate use in salmon farming
Kaur, Kiranpreet; Besnier, Francois; Glover, Kevin; Nilsen, Frank; Aspehaug, Vidar Teis; Fjørtoft, Helene Børretzen; Horsberg, Tor Einar (Peer reviewed; Journal article, 2017) -
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
Fjørtoft, Helene Børretzen; Besnier, Francois; Stene, Anne; Nilsen, Frank; Bjørn, Pål Arne; Tveten, Ann-Kristin; Finstad, Bengt; Aspehaug, Vidar; Glover, Kevin (Journal article; Peer reviewed, 2017)The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout ... -
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
Fjørtoft, Helene Børretzen; Besnier, Francois; Stene, Anne; Nilsen, Frank; Bjørn, Pål Arne; Tveten, Ann-Kristin; Finstad, Bengt; Aspehaug, Vidar; Glover, Kevin (Peer reviewed; Journal article, 2017) -
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
Fjørtoft, Helene Børretzen; Besnier, Francois; Stene, Anne; Nilsen, Frank; Bjørn, Pål Arne; Tveten, Ann-Kristin; Finstad, Bengt; Aspehaug, Vidar; Glover, Kevin (Journal article; Peer reviewed, 2017)The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout ...