• Data assimilation with SINMOD 

      Alver, Morten; Michelsen, Finn Are (Research report, 2015)
      Data assimilation is the process of using measured data to correct the state of a mathematical model. This report documents the data assimilation process implemented in the ocean model system SINMOD, and the tests that ...
    • Feed spreaders in sea cage aquaculture – Motion characterization and measurement of spatial pellet distribution using an unmanned aerial vehicle 

      Skøien, Kristoffer Rist; Alver, Morten; Zolich, Artur Piotr; Alfredsen, Jo Arve (Journal article; Peer reviewed, 2016)
      Pneumatic rotary feed spreaders represent essential equipment in the feeding system of present day industrial-scale sea cage aquaculture. This study presents experimentally obtained attitude measurements and corresponding ...
    • Fish welfare based classification method of ocean current speeds at aquaculture sites 

      Jónsdóttir, Kristbjörg Edda; Hvas, Malthe; Alfredsen, Jo Arve; Føre, Martin; Alver, Morten; Bjelland, Hans Vanhauwaert; Oppedal, Frode (Journal article; Peer reviewed, 2019)
      ABSTRACT: A major trend in marine aquaculture is to move production to more exposed sites with occasionally rough ocean current events. However, it is unclear whether fish will thrive in these extreme environments, since ...
    • Fôrleveranse til oppdrettsanlegg Demonstrasjon DINO – Dynamiske informasjonssystem for operativ beslutningsstøtte i kystsonen 

      Torsethaugen, Knut; Bjelland, Hans Vanhauwaert; Ellingsen, Ingrid H.; knudsen, øyvind; Alver, Morten; Haugen, Tony Idar; Sanne, Finn Otto; Bjarnar, Morten Lund; Hjøllo, Bjørn Åge; Høylandskjær, Ståle; Flægstad, Frode; Neshaug, Vegard; Ording, Svein (Research report, 2012)
      Rapporten beskriver planlegging og gjennomføringen av en tenkt forleveranse til ACE sitt oppdrettsanlegg på Tristein. Hensikten var å vise hvordan teknologi og beslutningsstøttesystem, som er videreutviklet i prosjektet, ...
    • High speed color 3D scanner - using NVIDIA Jetson 

      Gerritsen, Rubin Ingwer (Master thesis, 2017)
      Automatic quality grading of food products is often performed by machine vision systems. The maximum performance of such a system is determined by the amount and quality of the data used. A 3D color scanner is able to ...
    • Information-driven robotic sampling in the coastal ocean 

      Fossum, Trygve Olav; Eidsvik, Jo; Ellingsen, Ingrid H.; Alver, Morten; Fragoso, Glaucia Moreira; Johnsen, Geir; mendes, renato; Ludvigsen, Martin; Rajan, Kanna (Journal article; Peer reviewed, 2018)
      Efficient sampling of coastal ocean processes, especially mechanisms such as upwelling and internal waves and their influence on primary production, is critical for understanding our changing oceans. Coupling robotic ...
    • Intrinsic settling rate and spatial diffusion properties of extruded fish feed pellets 

      Skøien, Kristoffer Rist; Aas, Turid Synnøve; Alver, Morten; Romarheim, Odd Helge; Alfredsen, Jo Arve (Journal article; Peer reviewed, 2016)
      Spatial and temporal feed distribution in sea cages are important factors for the farmer, fish and environment due to the strong relation to growth, feed loss, pollution and welfare. This study presents a set of experimentally ...
    • Modelling and simulation of rotary feed spreaders with application to sea cage aquaculture – A study of common and alternative designs 

      Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve (Journal article; Peer reviewed, 2018)
      Rotary feed spreaders are extensively used in large scale fish aquaculture and are tasked with distributing pelletized feed in a spatially uniform manner over the water surface. Questions have been raised with respect to ...
    • Modelling how the physical scale of experimental tanks affects salmon growth performance 

      Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Senneset, Gunnar; Espmark, Åsa Maria Olofsdotter; Terjesen, Bendik Fyhn (Journal article; Peer reviewed, 2018)
      In this study, we explored the potential of using mathematical models for studying the effects of physical scale of production units on the growth performance of Atlantic salmon (Salmo salar L.). Atlantic salmon are typically ...
    • Modelling the cultivation and bioremediation potential of the kelp Saccharina latissima in close proximity to an exposed salmon farm in Norway 

      Broch, Ole Jacob; Ellingsen, Ingrid H.; Forbord, Silje; Wang, Xinxin; Volent, Zsolt; Alver, Morten; Handå, Aleksander; Andresen, Kjersti; Slagstad, Dag; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn (Journal article; Peer reviewed, 2013)
      A 3-dimensional hydrodynamic−ecological model system (SINMOD) was used to estimate the full-scale cultivation potential of the brown alga Saccharina latissima in integrated multi-trophic aquaculture (IMTA) with Atlantic ...
    • Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems 

      Broch, Ole Jacob; Pascal, Klebert; Michelsen, Finn Are; Alver, Morten (Peer reviewed; Journal article, 2020)
      Most Atlantic salmon mariculture operations use open sea cages for the grow out phase. The ultimate fate and effects of the effluents and the possibilities of disease transfer between fish farms are major concerns for ...
    • Numerical Integration and Interpolation in Marine Pollutant Transport Modelling 

      Nordam, Tor; Brönner, Ute; Skancke, Jørgen; Nepstad, Raymond; Rønningen, Petter; Alver, Morten (Chapter, 2018)
    • OMAE2017-61659 Classification of Aquaculture Locations in Norway With Respect to Wind Wave Exposure 

      Lader, Pål; Kristiansen, David; Alver, Morten; Bjelland, Hans Vanhauwaert; Myrhaug, Dag (Chapter; Peer reviewed, 2017)
      In Norway there are a total of 1070 registered sites for salmon farming all along the coast. Trends in the aquaculture industry in the recent decade are that salmon farming sites tend to gradually relocate to more wave and ...
    • Precision fish farming: A new framework to improve production in aquaculture 

      Føre, Martin; Frank, Kevin; Norton, Tomas; Svendsen, Eirik; Alfredsen, Jo Arve; Dempster, Timothy David; Eguiraun, Harkaitz; Watson, Win; Stahl, Annette; Sunde, Leif Magne; Schellewald, Christian; Skøien, Kristoffer Rist; Alver, Morten; Berckmans, Daniel (Journal article; Peer reviewed, 2017)
      Aquaculture production of finfish has seen rapid growth in production volume and economic yield over the last decades, and is today a key provider of seafood. As the scale of production increases, so does the likelihood ...
    • Simulation tool for hyper-spectral imaging from a satellite 

      Lapadatu, Monica; Bakken, Sivert; Grøtte, Mariusz Eivind; Alver, Morten; Johansen, Tor Arne (Journal article; Peer reviewed, 2019)
      This paper presents a tool created for simulating the expected radiance from oceanic geophysical parameters through the atmosphere as perceived by a hyperspectral remote sensing satellite. The effects of varying off-nadir ...
    • Smart Release Pods for Juvenile Lobster in Sea Ranching 

      Mellem, Adelaide (Master thesis, 2016)
      Sea ranching of lobster is a sustainable alternative to mere fishing. The method involves releasing hatchery-reared juveniles into their natural environment, usually at a geographically delimited area. With this addition ...