Browsing Brage IMR by Author "Barrett, Luke T."

Now showing items 1-12 of 12

    • A passive fish sampling method is representative for size but selective for parasite load 

      Loebmann, Amy; Barrett, Luke T.; Oppedal, Frode; Dempster, Timothy David (Peer reviewed; Journal article, 2024)
      Fish capture in industrial aquaculture is both necessary (i.e., for transfer, monitoring and harvesting) and difficult. The most logistically feasible methods rely heavily on crowding, a process that is detrimental to fish ...

    • Applying genetic technologies to combat infectious diseases in aquaculture 

      Robinson, Nicholas Andrew; Robledo, Diego; Sveen, Lene; Daniels, Rose Ruiz; Krasnov, Aleksei; Coates, Andrew; Jin, Ye Hwa; Barrett, Luke T.; Lillehammer, Marie; Kettunen, Anne Helena; Phillips, Ben L.; Dempster, Tim; Doeschl-Wilson, Andrea; Samsing, Francisca; Difford, Gareth Frank; Salisbury, Sarah; Gjerde, Bjarne; Haugen, John-Erik; Burgerhout, Erik; Dagnachew, Binyam Sime; Kurian, Dominic; Fast, Mark D.; Rye, Morten; Salazar, Marcela; Bron, James E.; Monaghan, Sean J.; Jacq, Celeste; Birkett, Mike; Browman, Howard I.; Skiftesvik, Anne Berit; Fields, David M.; Selander, Erik; Bui, Samantha; Sonesson, Anna Kristina; Skugor, Stanko; Østbye, Tone-Kari K; Houston, Ross D. (Peer reviewed; Journal article, 2022)
      Disease and parasitism cause major welfare, environmental and economic concerns for global aquaculture. In this review, we examine the status and potential of technologies that exploit genetic variation in host resistance ...

    • Effect of water temperature and exposure duration on detachment rate of salmon lice (Lepeophtheirus salmonis); testing the relevant thermal spectrum used for delousing 

      Nilsson, Jonatan; Barrett, Luke T.; Mangor-Jensen, Anders; Nola, Velimir; Harboe, Torstein; Folkedal, Ole (Peer reviewed; Journal article, 2023)
      Thermal delousing has become the most applied method for treatment against salmon lice. However, the temperature range used is strongly aversive for salmonids, and the method is associated with increased mortality. Treatment ...

    • Farmed salmonids drive the abundance, ecology and evolution of parasitic salmon lice in Norway 

      Dempster, Tim; Overton, Kathy; Bui, Samantha; Stien, Lars Helge; Oppedal, Frode; Karlsen, Ørjan; Coates, Andrew; Phillips, B. L.; Barrett, Luke T. (Peer reviewed; Journal article, 2021)
      Sea cage fish farming is typically open to the environment, with disease transmission possible between farmed and wild hosts. In salmonid aquaculture, salmon louse Lepeophtheirus salmonis infestations cause production ...

    • Post-smolt Atlantic salmon can regulate buoyancy in submerged sea-cages by gulping air bubbles 

      Barrett, Luke T.; Larsen, Lars-Thomas Unneland; Bui, Samantha; Vågseth, Tone; Eide, Erlend; Dempster, Timothy; Oppedal, Frode; Folkedal, Ole (Peer reviewed; Journal article, 2024)
      Salmon lice (Lepeophtheirus salmonis) are the most severe health challenge facing Atlantic salmon (Salmo salar) aquaculture. Infestations threaten farmed and wild salmonids, drive up production costs, and limit industry ...

    • Prevention not cure: a review of methods to avoid sea lice infestations in salmon 1 aquaculture 

      Barrett, Luke T.; Oppedal, Frode; Robinson, Nicholas Andrew; Dempster, Tim (Peer reviewed; Journal article, 2020)
      The Atlantic salmon aquaculture industry still struggles with ectoparasitic sea lice despite decades of research and development invested into louse removal methods. In contrast, methods to prevent infestations before they ...

    • Salmon lice survive the straight shooter: A commercial scale sea cage trial of laser delousing 

      Bui, Samantha; Geitung, Lena; Oppedal, Frode; Barrett, Luke T. (Peer reviewed; Journal article, 2020)
      Ectoparasitic salmon louse (Lepeophtheirus salmonis) infestations are costly for Atlantic salmon (Salmo salar) farmers in Norway. As a result, there is a strong desire for solutions to prevent and control infestations, and ...

    • Standard operasjonsprosedyre for manuell lusetelling til validering av automatisk telling 

      Bui, Samantha; Folkedal, Ole; Nerbø, Ingar Stian; Barrett, Luke T. (Rapport fra havforskningen;2024 - 56, Research report, 2024)
      Automatisk telling av lus i på fisk i merder er under stadig utvikling. Men mangel på standardisering av prosedyrer for validering av teknologien hindrer fremdriften mot å erstatte manuell telling med automatisk. Basert ...

    • Standardisation of manual louse counts for validation of automatic camera systems - Final report (FHF project 901881) 

      Bui, Samantha; Folkedal, Ole; Nerbø, Ingar Stian; Barrett, Luke T. (Rapport fra havforskningen;2024 - 61, Research report, 2024)
      The shift toward continuous and more precise monitoring of Atlantic salmon in aquaculture has been rapidly progressing, with new technologies being developed and ready for adoption before systematised validation has been ...

    • Støy som mulig stressfaktor og velferdsutfordring i oppdrettsnæringen — Sluttrapport FHF #901744 «Soundscape» 

      Oppedal, Frode; Barrett, Luke T.; Fraser, Thomas; Vågseth, Tone; Overton, Kathy; Dempster, Timothy David; Vindas, Marco (Rapport fra havforskningen;2025 - 10, Research report, 2025)
      I moderne lakseoppdrett i sjø og på land er miljøet ofte preget av mye menneskeskapt lyd. Muligens kan lydstøy ha negativ påvirkning på laksen, det mest produserte husdyret i Norge, men omfanget og effekten lyden har på ...

    • Tag use to monitor fish behaviour in aquaculture: a review of benefits, problems and solutions 

      Macaulay, Georgia; Warren-Myers, Fletcher; Barrett, Luke T.; Oppedal, Frode; Føre, Martin; Dempster, Tim (Peer reviewed; Journal article, 2021)
      A variety of tagging techniques are now available to monitor fish behaviour, physiology and their environmental experience. Tagging is frequently used in aquaculture research to monitor free-swimming individuals within ...

    • Where art thou louse? A snapshot of attachment location preferences in salmon lice on Atlantic salmon hosts in sea cages 

      Bui, Samantha; Oppedal, Frode; Velimir, Nola; Barrett, Luke T. (Peer reviewed; Journal article, 2020)
      Problematic sea lice infestations on farmed Atlantic salmon (Salmo salar) have motivated extensive research and development into new methods to prevent, monitor and control sea lice. Most of these technologies require ...