Blar i Articles på forfatter "Samuelsen, Ole Bent"
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Mortality and deformities in European lobster (Homarus gammarus) juveniles exposed to the anti-parasitic drug teflubenzuron
Samuelsen, Ole Bent; Lunestad, Bjørn T.; Farestveit, Eva; Grefsrud, Ellen Sofie; Hannisdal, Rita; Holmelid, Bjarte; Tjensvoll, Tore; Agnalt, Ann-Lisbeth (Journal article; Peer reviewed, 2014-02-04)This study describes experiments carried out to examine effects of the antiparasitic drug teflubenzuron, used in delousing farmed salmon, on a non-target species, the European lobster (Homarus gammarus). Juvenile lobsters ... -
Mortality and reduced photosynthetic performance in sugar kelp Saccharina latissima caused by the salmon-lice therapeutant hydrogen peroxide
Haugland, Barbro Taraldset; Rastrick, Samuel; Agnalt, Ann-Lisbeth; Husa, Vivian; Kutti, Tina; Samuelsen, Ole Bent (Journal article; Peer reviewed, 2019)Sugar kelp Saccharina latissima is one of the dominating kelp species on sheltered sublittoral sites along the Norwegian coastline, providing important habitats and ecosystem services. In finfish aquaculture in Norway, ... -
Mortality in the rockpool shrimp Palaemon elegans following long-term exposure to low doses of the anti-parasitic drug Teflubenzuron
Samuelsen, Ole Bent; Parsons, Aoife; Agnalt, Ann-Lisbeth; Tjensvoll, Tore; Lunestad, Bjørn Tore; Hannisdal, Rita (Peer reviewed; Journal article, 2020)Anti-parasitic drugs used to control sea lice infestations in the salmonid aquaculture industry are a growing environmental concern due to their potential impacts on non-target crustacean species. This study examined the ... -
Pharmacokinetic Data Show That Oxolinic Acid and Flumequine Are Absorbed and Excreted Rapidly From Plasma and Tissues of Lumpfish
Haugland, Gyri Teien; Kverme, Karen obrestad; Hannisdal, Rita; Kallekleiv, Marielle; Colquhoun, Duncan John; Lunestad, Bjørn Tore; Wergeland, Heidrun Inger; Samuelsen, Ole Bent (Journal article; Peer reviewed, 2019)This study examined the uptake, tissue distribution and elimination of the antibacterial agents oxolinic acid and flumequine in lumpfish (Cyclopterus lumpus L.) by use of LC-MS/MS following a single oral administration of ... -
Pharmacokinetics and transcriptional effects of the anti-salmon lice drug emamectin benzoate in Atlantic salmon (Salmo salar L.)
Olsvik, Pål Asgeir; Lie, Kai Kristoffer; Mykkeltvedt, Eva; Samuelsen, Ole Bent; Petersen, Kjell; Stavrum, Anne-Kristin; Lunestad, Bjørn Tore (Journal article, 2008)Background Emamectin benzoate (EB) is a dominating pharmaceutical drug used for the treatment and control of infections by sea lice (Lepeophtheirus salmonis) on Atlantic salmon (Salmo salar L). Fish with an initial mean ... -
Pharmacokinetics of florfenicol in cod Gadus morhua and in vitro antibacterial activity against Vibrio anguillarum
Samuelsen, Ole Bent; Bergh, Øivind; Ervik, Arne (Journal article; Peer reviewed, 2003-09-24)The pharmacokinetic profile of the antibacterial agent florfenicol was studied in plasma after intravenous (i.v.) injection and in plasma, muscle and liver following oral (p.o.) administration to cod Gadus morhua, held ... -
Pharmacokinetics of florfenicol in lumpfish (Cyclopterus lumpus L.) after a single oral administration
Kverme, Karen obrestad; Haugland, Gyri Teien; Hannisdal, Rita; Marielle, Kallekleiv; Colquhoun, Duncan John; Lunestad, Bjørn Tore; Wergeland, Heidrun Inger; Samuelsen, Ole Bent (Journal article; Peer reviewed, 2019)Farming of lumpfish for biological removal of sea lice from farmed Atlantic salmon has expanded rapidly in Europe and Canada over the last 5–6 years and the lumpfish has become an economically important species. There are, ... -
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 ... -
Residues of oxolinic acid in wild fauna following medication in fish farms
Samuelsen, Ole Bent; Lunestad, Bjørn Tore; Husevåg, B.; Hølleland, T.; Ervik, Arne (Journal article; Peer reviewed, 1992-02-17)Dispersion of oxolinic acid and occurrence of Aeromonas salmonicida in wild fauna were studied in animals captured in the vicinity of 2 aquaculture facilities during and after medication with this drug. Consumption of ... -
Short-term exposure to hydrogen peroxide induces mortality and alters exploratory behaviour of European lobster (Homarus gammarus)
Escobar, Rosa; Parsons, Aoife Elizabeth; Samuelsen, Ole Bent; Agnalt, Ann-Lisbeth (Peer reviewed; Journal article, 2020)Bath treatment chemotherapeutants, used to control sea lice infestations in the salmonid aquaculture industry, are released directly into the marine environment around fish farms and pose a serious risk to non-target ... -
Toxicological assessment of the anti-salmon lice drug diflubenzuron on Atlantic cod Gadus morhua
Olsvik, Pål A.; Samuelsen, Ole Bent; Erdal, Arne; Holmelid, Bjarte; Lunestad, Bjørn Tore (Journal article; Peer reviewed, 2013-07-09)Increasing use of the chitin synthesis inhibitor diflubenzuron against the ectoparasitic salmon louse Lepeophtheirus salmonis in marine aquaculture has raised concerns over its environmental impacts. This study evaluated ... -
Viral and bacterial diseases of Atlantic cod Gadus morhua, their prophylaxis and treatment: a review
Samuelsen, Ole Bent; Nerland, Audun H.; Jørgensen, Trond; Schrøder, Merete Bjørgan; Svåsand, Terje; Bergh, Øivind (Journal article; Peer reviewed, 2006-08-30)This review summarises the state of knowledge of both viral and bacterial diseases of Atlantic cod Gadus morhua, and their diagnosis, prophylaxis and treatment. The most important losses have been at the larval and ...