Blar i Bergen Open Research Archive på forfatter "Powell, Mark"
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Development of anaesthetic protocols for lumpfish (Cyclopterus lumpus L.): Effect of anaesthetic concentrations, sea water temperature and body weight
Skår, Malene W.; Haugland, Gyri Teien; Powell, Mark; Wergeland, Heidrun Inger; Samuelsen, Ole Bent (Peer reviewed; Journal article, 2017-07-05)In recent years, use of lumpfish (Cyclopterus lumpus L.) as cleaner-fish to remove sea-lice have been chosen by many salmon farmers in Europe and Canada as an alternative to medical treatment, which has led to large scale ... -
Effects of cnidarian biofouling on salmon gill health and development of amoebic gill disease
Bloecher, Nina; Powell, Mark; Hytterød, Sigurd; Gjessing, Mona Cecilie; Wiik-Nielsen, Jannicke; Mohammad, Saima; Hansen, Haakon; Floerl, Oliver; Gjevre, Anne Gerd (Peer reviewed; Journal article, 2018-07-06)This study examines the potential implications of biofouling management on the development of an infectious disease in Norwegian farmed salmon. The hydroid Ectopleura larynx frequently colonises cage nets at high densities ... -
Hypoxia tolerance and responses to hypoxic stress during heart and skeletal muscle inflammation in Atlantic salmon (Salmo salar)
Lund, Morten; Dahle, Maria Krudtaa; Timmerhaus, Gerrit; Alarcon, Marta; Powell, Mark; Aspehaug, Vidar; Rimstad, Espen; Jørgensen, Sven Martin (Peer reviewed; Journal article, 2017-07-11)Heart and skeletal muscle inflammation (HSMI) is associated with Piscine orthoreovirus (PRV) infection and is an important disease in Atlantic salmon (Salmo salar) aquaculture. Since PRV infects erythrocytes and farmed ... -
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts
Fraser, Thomas; Fjelldal, Per Gunnar; Sommerset, Ingunn; Søfteland, Tina; Høstmark, Ole; Powell, Mark; Heen, Vegar; Hansen, Tom Johnny (Journal article; Peer reviewed, 2020)Oil-adjuvanted vaccines reduce long-term growth in farmed Atlantic salmon Salmo salar, possibly via an increase in metabolic rate due to the energetic demands of the immune system. We tested this hypothesis by comparing ... -
What Is Gill Health and What Is Its Role in Marine Finfish Aquaculture in the Face of a Changing Climate?
Foyle, Kevin L.; Hess, Sybille; Powell, Mark; Herbert, Neill A. (Journal article; Peer reviewed, 2020)It is hard to find a definition of gill health in the literature although there is a lot of information on changes to gill structure as a result of infectious and non-infectious challenge. How these changes relate to overall ...