Browsing NOFIMA vitenarkiv by Author "Johansen, Lill-Heidi"
Now showing items 1-20 of 32
-
A review of the factual basis of interactions between farmed and wild salmon as it applies to salmon lice
van Nes, Solveig; Johansen, Lill-Heidi; Gjerde, Bjarne; Skugor, Stanko; Ødegård, Jørgen (Nofima rapportserie, Research report, 2011)The report entails a critical review of the factual basis(*) concerning interactions between farmed and wild salmonids as it applies to salmon lice, with specific relevance to Norway. The summary is in accordance with the ... -
Analyse av sykdomsrelatert risiko forbundet med bruk av villfanget og oppdrettet rensefisk for kontroll av lakselus
Johansen, Lill-Heidi; Colquhoun, Duncan John; Hansen, Haakon; Hildre, Sindre; Wergeland, Heidrun Inger; Mikalsen, Heidi Eileen (Research report, 2016) -
Assessing Peracetic Acid Application Methodology and Impacts on Fluidized Sand Biofilter Performance
Lepine, Christine; Redman, Natalie; Murray, Megan; Lazado, Carlo C.; Johansen, Lill-Heidi; Espmark, Åsa Maria Olofsdotter; Davidson, John; Good, Christopher (Peer reviewed; Journal article, 2023)Nitrifying biofilters oxidize harmful ammonia excreted by fish into less toxic nitrate within recirculating aquaculture systems (RAS). Biofilter performance and resulting RAS water quality largely depend on a robust ... -
Atlantic salmon (Salmo salar) mounts systemic and mucosal stress responses to peracetic acid
Soleng, Malene; Johansen, Lill-Heidi; Johnsen, Hanne; Johansson, Gunhild Seljehaug; Breiland, Mette Serine Wesmajervi; Rørmark, Lisbeth; Pittman, Karin; Pedersen, Lars-Flemming; Lazado, Carlo C. (Peer reviewed; Journal article, 2019)Peracetic acid (PAA), a strong organic peroxide, is considered a relatively sustainable disinfectant in aquaculture because of its broad effectivity against many pathogens at low concentrations and because it degrades ... -
Beste praksis for medikamentfrie metoder for lakseluskontroll (MEDFRI) - Faglig sluttrapport
Holan, Astrid Buran; Roth, Bjørn; Breiland, Mette Serine Wesmajervi; Kolarevic, Jelena; Hansen, Øyvind J; Iversen, Audun; Hermansen, Øystein; Gjerde, Bjarne; Hatlen, Bjarne; Mortensen, Atle; Lein, Ingrid; Johansen, Lill-Heidi; Noble, Chris; Gismervik, Kristine; Espmark, Åsa Maria Olofsdotter (Nofima rapportserie, Research report, 2017)Se side 1 -
Climate change with increasing seawater temperature will challenge the health of farmed Atlantic Cod (Gadus morhua L.)
Ytteborg, Elisabeth; Falconer, Lynne; Krasnov, Aleksei; Johansen, Lill-Heidi; Timmerhaus, Gerrit; Johansson, Gunhild Seljehaug; Afanasyev, Sergey; Høst, Vibeke; Hjøllo, Solfrid Sætre; Hansen, Øyvind J; Lazado, Carlo C. (Peer reviewed; Journal article, 2023) -
Consequences of continuous ozonation on the health and welfare of Atlantic salmon post-smolts in brackish water recirculating aquaculture system
Lazado, Carlo C.; Stiller, Kevin Torben; Reiten, Britt Kristin Megård; Osório, João; Kolarevic, Jelena; Johansen, Lill-Heidi (Peer reviewed; Journal article, 2021)This study investigated the biological consequences of 45-day continuous ozonation on Atlantic salmon (Salmo salar) post-smolts in a brackish water recirculating aquaculture system (RAS). There was no significant difference ... -
Deep neural network analysis - a paradigm shift for histological examination of health and welfare of farmed fish
Sveen, Lene; Timmerhaus, Gerrit; Johansen, Lill-Heidi; Ytteborg, Elisabeth (Peer reviewed; Journal article, 2021)An artificial intelligence model (AI-model) was trained for the first time to detect multi-class segmentation of skin from Atlantic salmon, using a convolutional neural network (Aiforia®). The AI-model was developed to ... -
Development of Atlantic Salmon (Salmo salar L.) Under Hypoxic Conditions Induced Sustained Changes in Expression of Immune Genes and Reduced Resistance to Moritella viscosa
Krasnov, Aleksei; Burgerhout, Erik; Johnsen, Hanne; Tveiten, Helge; Bakke, Anne Flore; Lund, Hege; Afanasyev, Sergey; Rebl, Alexander; Johansen, Lill-Heidi (Peer reviewed; Journal article, 2021)Atlantic salmon is characterized with high sensitivity to low dissolved oxygen (DO) levels. Hypoxia can affect diverse biological processes with consequences that can be manifested immediately or with delay. Effects of ... -
Development of cod farming in Norway: Past and current biological and market status and future prospects and directions
Puvanendran, Velmurugu; Mortensen, Atle; Johansen, Lill-Heidi; Kettunen, Anne Helena; Hansen, Øyvind J; Henriksen, Edgar; Heide, Morten (Peer reviewed; Journal article, 2022)Atlantic cod is a historically abundant species in the North Atlantic region and has contributed to the prosperity of many nations. But a decline in stocks in the last century has prompted to initiate commercial farming ... -
Effects of dietary lipid level on growth, digestive physiology and disease resistance in lumpfish (Cyclopterus lumpus)
Berge, Gerd Marit; Zhou, Weiwen; Johansen, Lill-Heidi; Chikwati, Elvis Mashingaidze; Kortner, Trond M.; Lein, Ingrid; Krogdahl, Åshild (Peer reviewed; Journal article, 2023)Lumpfish (Cyclopterus lumpus) aquaculture has expanded greatly in recent years due to demands for sea lice cleanerfish from the salmon industry. There are knowledge gaps in lumpfish digestive physiology, nutrient requirement ... -
Evaluering av faktagrunnlaget om påvirkning mellom oppdretts- og villaks: Lakselus
van Nes, Solveig; Johansen, Lill-Heidi; Gjerde, Bjarne; Skugor, Stanko; Ødegård, Jørgen (Nofima rapportserie, Research report, 2011)Det er foretatt en vurdering av faktagrunnlaget vedrørende interaksjonen mellom ville- og oppdrettede populasjoner av anadrom laksefisk og lakselus med spesiell relevans for Norge. Rapporten er grovt sett delt inn i tre ... -
Expert-driven methodology to assess and predict the effects of drivers of change on vulnerabilities in a food supply chain: Aquaculture of Atlantic salmon in Norway as a showcase
Marvin, Hans J.P.; van Asselt, Esther; Kleter, Gijs; Meijer, Nathan; Lorentzen, Grete Elisabeth; Johansen, Lill-Heidi; Hannisdal, Rita; Sele, Veronika; Bouzembrak, Yamine (Peer reviewed; Journal article, 2020) -
ILA-virus i villfisk og oppdrettsfisk i Troms
Kileng, Øyvind; Johansen, Lill-Heidi; Jensen, Ingvill (Nofima rapportserie, Research report, 2011)Infeksiøs lakseanemi (ILA) er en sykdom forårsaket av ILA-virus (ILAV) som resulterer i store tap i lakseoppdrett. Sykdomsutbrudd er kun registrert på oppdrettslaks, men en avirulent variant av viruset er også påvist i ... -
Impact of a candidate vaccine on the dynamics of salmon lice (Lepeophtheirus salmonis) infestation and immune response in Atlantic salmon (Salmo salar L.)
Swain, Jaya Kumari; Carpio, Yamila; Johansen, Lill-Heidi; Velazquez, Janet; Hernandez, Liz; Leal, Yeny; Kumar, Ajey; Estrada, Mario Pablo (Peer reviewed; Journal article, 2020)Infection with parasitic copepod salmon louse Lepeophtheirus salmonis, represents one of the most important limitations to sustainable Atlantic salmon (Salmo salar L.) farming today in the North Atlantic region. The parasite ... -
Influence of dietary supplementation of probiotic pediococcus acidilactici MA18/5M during the transition from freshwater to seawater on intestinal health and microbiota of atlantic salmon (Salmo salar L.)
Jaramillo-Torres, Alexander; Rawling, Mark D.; Rodiles, Ana; Mikalsen, Heidi Eileen; Johansen, Lill-Heidi; Tinsley, John; Forberg, Torunn; Aasum, Elisabeth; Castex, Mathieu; Merrifield, Daniel Lee (Peer reviewed; Journal article, 2019) -
Intermittent administration of peracetic acid is a mild environmental stressor that elicits mucosal and systemic adaptive responses from Atlantic salmon post-smolts
Osório, João; Stiller, Kevin Torben; Reiten, Britt Kristin Megård; Kolarevic, Jelena; Johansen, Lill-Heidi; Afonso, Fernando; Lazado, Carlo C. (Peer reviewed; Journal article, 2022)Background Fish encounter oxidative stress several times during their lifetime, and it has a pervasive influence on their health and welfare. One of the triggers of oxidative stress in fish farming is the use of oxidative ... -
Kunnskap- og metodeutvikling for å styrke laksens robusthet og helse
Jørgensen, Sven Martin; Sørensen, Mette; Torgersen, Jacob; Todorcevic, Marijana; Østbye, Tone-Kari K; Aas-Hansen, Øyvind; Johansen, Lill-Heidi; Timmerhaus, Gerrit; Bao, Marta; Alarcon, Marta; Mørkøre, Turid; Krasnov, Aleksei; Ruyter, Bente; Takle, Harald Rune (Nofima rapportserie, Research report, 2012) -
Kunnskapskartlegging-produksjon av stor laksesmolt
Ytrestøyl, Trine; Jenssen, Iris; Wetterwald, Vibeke Emilsen; Striberny, Anja; Alvestad, René; Dam, Rùni; Mortensen, Heidi S.; Johansen, Ellie; Espmark, Åsa Maria Olofsdotter; Johansen, Lill-Heidi; Kolarevic, Jelena; Larsen, Jørund S; Sandberg, Merete Gisvold; Nilsen, Tom Ole (Nofima rapportserie, Research report, 2023) -
Miljø og fôring for optimal helse og overlevelse av rensefisk i merd
Lein, Ingrid; Kottmann, Johanna; Johansen, Lill-Heidi; Kousoulaki, Katerina; Gjerde, Bjarne; Ytteborg, Elisabeth; Østbye, Tone-Kari K; Berge, Gerd Marit (Nofima rapportserie, Research report, 2022)