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  1. Ansatte

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Jo Arve Alfredsen

Last ned pressefoto
Last ned pressefoto
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Jo Arve Alfredsen

Professor
Institutt for teknisk kybernetikk

jo.arve.alfredsen@ntnu.no
73591427 90945805 Elektro D/B2, 131, Gløshaugen, O. S. Bragstads plass 2
Google Scholar
Om Publikasjoner Undervisning Formidling

Om

Jo Arve Alfredsen (born 1969) has been working as a Professor and Associate professor at the Department of Engineering Cybernetics since 2004. He has a PhD and a Master degree in Engineering Cybernetics from NTNU and coordinates the research group on Fisheries and Aquaculture Systems.

Research

Jo Arve’s research area is focused on how automation, in a broad sense, can be applied to enhance the design and operation of marine production and harvesting systems and for ocean observation. Important topics include systems biology, mathematical modelling, and specialized instrumentation, sensors and control systems.

Present research includes:

  •  Mathematical modelling, numerical simulation and analysis of marine biological systems including physiology, ecology and behavior of fish and other marine organisms under culture or free-ranging conditions
  • Monitoring, estimation and control of aquaculture production systems for plankton, fish larvae and juveniles, and on-growing fish
  • Instrumentation systems and integrated sensor solutions for aquaculture production systems and monitoring of marine life
  • Fish telemetry technology

Teaching

Jo Arve is currently responsible for the following courses:

Course code 

Course title

TTK4155

Industrial and Embedded Computer Systems Design

TTK8108

Topics in Fisheries and Aquaculture Cybernetics for PhD students

TTK15

Fish telemetry

-

Teknostart

He also coordinates the specialization study in fisheries and aquaculture cybernetics.

Several Master projects or specialization projects (fordypningsprosjekt) are currently available in the areas of automation in fisheries and aquaculture and marine instrumentation. If you are looking for opportunities in these areas you are invited to contact Jo Arve for suggestions.

Kompetanseord

  • Kybernetikk

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2022

  • Dallolio, Alberto; Bjerck, Helge Bostwick; Urke, Henning Andre; Alfredsen, Jo Arve. (2022) A Persistent Sea-Going Platform for Robotic Fish Telemetry Using a Wave-Propelled USV: Technical Solution and Proof-of-Concept. Frontiers in Marine Science
    Vitenskapelig artikkel
  • Alver, Morten; Føre, Martin; Alfredsen, Jo Arve. (2022) Predicting oxygen levels in Atlantic salmon (Salmo salar) sea cages. Aquaculture
    Vitenskapelig artikkel
  • Dallolio, Alberto; Øveraas, Henning; Alfredsen, Jo Arve; Fossen, Thor Inge; Johansen, Tor Arne. (2022) Design and Validation of a Course Control System for a Wave-Propelled Unmanned Surface Vehicle. Field Robotics
    Vitenskapelig artikkel

2021

  • Svendsen, Eirik; Føre, Martin; Randeberg, Lise Lyngsnes; Alfredsen, Jo Arve. (2021) Design of a novel biosensor implant for farmed Atlantic salmon (Salmo salar). IEEE Sensors Council
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Ulvund, John Birger; Engebretsen, Solveig; Alfredsen, Jo Arve; Kristensen, Torstein; Urke, Henning André; Jansen, Peder A.. (2021) Behavioural response of farmed Atlantic salmon (Salmo salar L.) to artificial underwater lights: Wavelet analysis of acoustic telemetry data. Aquacultural Engineering
    Vitenskapelig artikkel
  • Dallolio, Alberto; Alfredsen, Jo Arve; Fossen, Thor Inge; Johansen, Tor Arne. (2021) Experimental Validation of a Nonlinear Wave Encounter Frequency Estimator Onboard a Wave-Propelled USV. IFAC-PapersOnLine
    Vitenskapelig artikkel
  • Svendsen, Eirik; Økland, Finn; Føre, Martin; Randeberg, Lise Lyngsnes; Finstad, Bengt; Olsen, Rolf Erik. (2021) Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar). Animal Biotelemetry
    Vitenskapelig artikkel
  • Bjerck, Helge Bostwick; Urke, Henning Andre; Haugen, Thrond Oddvar; Alfredsen, Jo Arve; Ulvund, John Birger; Kristensen, Torstein. (2021) Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords. Scientific Reports
    Vitenskapelig artikkel
  • Alfredsen, Knut; Urke, Henning Andre; Kristensen, Torstein; Kvakland, Marte; Grønningsæter, Åge; Hagen, Anders Gjørwad. (2021) An acoustic sensor transmitter for in situ assessment of water quality and fish behaviour during chemical treatment of a parasite-infected river system: tag design and practical use . Animal Biotelemetry
    Vitenskapelig artikkel
  • Jonsdottir, Kristbjørg Edda; Pascal, Klebert; Volent, Zsolt; Alfredsen, Jo Arve. (2021) Characteristic current flow through a stocked conical sea-cage with permeable lice shielding skirt. Ocean Engineering
    Vitenskapelig artikkel
  • Jónsdóttir, Kristbjörg Edda; Volent, Zsolt; Alfredsen, Jo Arve. (2021) Current flow and dissolved oxygen in a full-scale stocked fish-cage with and without lice shielding skirts. Applied Ocean Research
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Økland, Finn; Gräns, Albin; Alfredsen, Jo Arve; Finstad, Bengt. (2021) Heart rate and swimming activity as indicators of post-surgical recovery time of Atlantic salmon (Salmo salar). Animal Biotelemetry
    Vitenskapelig artikkel

2020

  • Jónsdóttir, Kristbjörg Edda; Volent, Zsolt; Alfredsen, Jo Arve. (2020) Dynamics of dissolved oxygen inside salmon sea-cages with lice shielding skirts at two hydrographically different sites. Aquaculture Environment Interactions
    Vitenskapelig artikkel
  • Svendsen, Eirik; Føre, Martin; Økland, Finn; Gräns, Albin; Hedger, Richard David; Alfredsen, Jo Arve. (2020) Heart rate and swimming activity as stress indicators for Atlantic salmon (Salmo salar). Aquaculture
    Vitenskapelig artikkel
  • Aas, Turid Synnøve; Ytrestøyl, Trine; Åsgård, Torbjørn Einar; Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2020) Feed intake in Atlantic salmon fed with or without surface spreading of feed. Journal of Agricultural and Marine Sciences (JAMS)
    Vitenskapelig artikkel
  • Hassan, Waseem; Føre, Martin; Pedersen, Magnus Oshaug; Alfredsen, Jo Arve. (2020) A new method for measuring free-ranging fish swimming speed in commercial marine farms using Doppler principle. IEEE Sensors Journal
    Vitenskapelig artikkel
  • Kruusmaa, Maarja; Gkliva, R.; Tuhtan, J.A.; Tuvikene, A.; Alfredsen, Jo Arve. (2020) Salmon behavioural response to robots in an aquaculture sea cage. Royal Society Open Science
    Vitenskapelig artikkel

2019

  • Dallolio, Alberto; Bendik Olai, Agdal; Zolich, Artur Piotr; Alfredsen, Jo Arve; Johansen, Tor Arne. (2019) Long-Endurance Green Energy Autonomous Surface Vehicle Control Architecture. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Hassan, Waseem; Føre, Martin; Urke, Henning Andre; Kristensen, Torstein; Ulvund, John Birger; Alfredsen, Jo Arve. (2019) System for Real-Time Positioning and Monitoring of Fish in Commercial Marine Farms Based on Acoustic Telemetry and Internet of Fish (IoF). International Society of Offshore & Polar Engineers
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Jónsdóttir, Kristbjörg Edda; Hvas, Malthe; Alfredsen, Jo Arve; Føre, Martin; Alver, Morten; Bjelland, Hans Vanhauwaert. (2019) Fish Welfare Based Classification Method of Ocean Current Speeds at Aquaculture Sites. Aquaculture Environment Interactions
    Vitenskapelig artikkel
  • Hassan, Waseem; Føre, Martin; Ulvund, John Birger; Alfredsen, Jo Arve. (2019) Internet of Fish: Integration of acoustic telemetry with LPWAN for efficient real-time monitoring of fish in marine farms. Computers and Electronics in Agriculture
    Vitenskapelig artikkel
  • Hassan, Waseem; Føre, Martin; Pedersen, Magnus Oshaug; Alfredsen, Jo Arve. (2019) A novel Doppler based speed measurement technique for individual free-ranging fish. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2018

  • Yan, Sheng; Alfredsen, Jo Arve. (2018) Infrared depth camera system for real-time european lobster behavior analysis. SciTePress
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • jain, praveen; Zolich, Artur Piotr; Erstorp, E; Johansen, Tor Arne; Alfredsen, Jo Arve; Aguiar, A Pedro. (2018) Localization of an Acoustic Fish-Tag using the Time-of-Arrival Measurements: Preliminary results using eXogenous Kalman Filter. Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Alfredsen, Jo Arve; Uglem, Ingebrigt; Bloecher, Nina; Sveier, Harald. (2018) Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar). Aquaculture
    Vitenskapelig artikkel
  • Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Senneset, Gunnar; Espmark, Åsa Maria Olofsdotter; Terjesen, Bendik Fyhn. (2018) Modelling how the physical scale of experimental tanks affects salmon growth performance. Aquaculture
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2018) Modelling and simulation of rotary feed spreaders with application to sea cage aquaculture - A study of common and alternative designs. Aquacultural Engineering
    Vitenskapelig artikkel
  • Haugaløkken, Bent Oddvar Arnesen; Sandøy, Stian Skaalvik; Schjølberg, Ingrid; Alfredsen, Jo Arve; Utne, Ingrid Bouwer. (2018) Probabilistic Localization and Mapping of Flexible Underwater Structures using Octomap. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2017

  • Føre, Martin; Frank, Kevin; Dempster, T; Alfredsen, Jo Arve; Høy, Erik. (2017) Biomonitoring using tagged sentinel fish and acoustic telemetry in commercial salmon aquaculture: A feasibility study. Aquacultural Engineering
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Lundregan, Sarah; Frank, Kevin; Alfredsen, Jo Arve. (2017) Effects of wind on surface feed distribution in sea cage aquaculture: A simulation study. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Yan, Sheng; Alfredsen, Jo Arve. (2017) Real time lobster posture estimation for behavior research. SPIE - The International Society for Optics and Photonics
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Zolich, Artur Piotr; Johansen, Tor Arne; Alfredsen, Jo Arve; Kuttenkeuler, J; Erstorp, E. (2017) A Formation of Unmanned Vehicles for Tracking of an Acoustic Fish-Tag. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Føre, Martin; Frank, Kevin; Norton, Tomas; Svendsen, Eirik; Alfredsen, Jo Arve; Dempster, Timothy David. (2017) Precision fish farming: A new framework to improve production in aquaculture. Biosystems Engineering
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Frank, Kevin; Schellewald, Christian; Sunde, Leif Magne; Stahl, Annette. (2017) LAKSIT:Telemetri og maskinsyn for overvåkning og dokumentasjon av fiskevelferd i avlusningsprosesser. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Yan, Sheng; Alfredsen, Jo Arve. (2017) Automatic Video Analysis of Stage IV European Lobster Juveniles for their Aggressive Behavior Assessment. IET Digital Library
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2016

  • Zolich, Artur Piotr; Alfredsen, Jo Arve; Johansen, Tor Arne; Skøien, Kristoffer Rist. (2016) A communication bridge between underwater sensors and unmanned vehicles using a surface wireless sensor network - design and validation. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Marafioti, Giancarlo; Senneset, Gunnar; Birkevold, Jens. (2016) Modelling growth performance and feeding behaviour of Atlantic salmon (Salmo salar L.) in commercial-size aquaculture net pens: Model details and validation through full-scale experiments. Aquaculture
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Zolich, Artur Piotr; Alfredsen, Jo Arve. (2016) Feed spreaders in sea cage aquaculture – Motion characterization and measurement of spatial pellet distribution using an unmanned aerial vehicle. Computers and Electronics in Agriculture
    Vitenskapelig artikkel
  • Alver, Morten; Skøien, Kristoffer Rist; Føre, Martin; Aas, Turid Synnøve; Oehme, Maike; Alfredsen, Jo Arve. (2016) Modelling of surface and 3D pellet distribution in Atlantic salmon (Salmo salar L.) cages. Aquacultural Engineering
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Aas, Turid Synnøve; Alver, Morten; Romarheim, Odd Helge; Alfredsen, Jo Arve. (2016) Intrinsic settling rate and spatial diffusion properties of extruded fish feed pellets. Aquacultural Engineering
    Vitenskapelig artikkel

2015

  • Føre, Martin; Frank, Kevin; Høy, Erik; Alfredsen, Jo Arve; Dempster, Tim; Sunde, Leif Magne. (2015) Trådløs dataoverføring under vann muliggjør online overvåkning av laksens tilstand og velferd. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2015) Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2014

  • Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Alfredsen, Jo Arve. (2014) Modellbasert fôrdistribusjon i oppdrett. Teknisk Ukeblad
    Fagartikkel
  • Skøien, Kristoffer Rist; Alfredsen, Jo Arve. (2014) Feeding of large-scale fish farms: Motion characterization of a pneumatic rotor feed spreader. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. IEEE Signal Processing Society
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2013

  • Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar. (2013) Pellet distribution modelling: a tool for improved feed delivery in sea cages. International Aquafeed
    Kronikk
  • Urke, Henning Andre; Kristensen, Torstein; Ulvund, John Birger; Alfredsen, Jo Arve. (2013) Riverine and fjord migration of wild and hatchery-reared Atlantic salmon smolts. Fisheries Management and Ecology
    Vitenskapelig artikkel
  • Alfredsen, Jo Arve; Marafioti, Giancarlo. (2013) Hvor mye laks er det egentlig i merden? Del 3: Optimal biomasseestimering ved kombinasjon av målinger og vekstmodell. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Alfredsen, Jo Arve; Alver, Morten; Eriksen, Tor-Inge J. (2013) Architecture for automation and telepresence in a marine hatchery laboratory. Communications in agricultural and applied biological sciences
    Sammendrag/abstract
  • Føre, Martin; Dempster, Timothy David; Alfredsen, Jo Arve; Oppedal, Frode. (2013) Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: Using artificial light to control swimming depth. Aquaculture
    Vitenskapelig artikkel

2011

  • Føre, Martin; Alfredsen, Jo Arve; Åge, Grønningsæter. (2011) Development of two telemetry-based systems for monitoring the feeding behaviour of Atlantic salmon (Salmo salar L.) in aquaculture sea-cages. Computers and Electronics in Agriculture
    Vitenskapelig artikkel

2010

  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor; Storøy, Werner; Olsen, Yngvar. (2010) Automatic control of growth and density in rotifer cultures. Aquacultural Engineering
    Vitenskapelig artikkel

2009

  • Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Special Publications (European Aquaculture Society)
    Sammendrag/abstract
  • Føre, Martin; Dempster, T; Alfredsen, Jo Arve; Johansen, V; Johansson, D. (2009) Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: A Lagrangian approach. Aquaculture
    Vitenskapelig artikkel

2008

  • Alver, Morten; Tennøy, Tormod; Alfredsen, Jo Arve; Øie, Gunvor; Olsen, Yngvar. (2008) Automatic control of rotifer density in larval first feeding tanks. Control Engineering Practice
    Vitenskapelig artikkel

2007

  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor. (2007) Estimating larval density in cod (Gadus morhua) first feeding tanks using measurements of feed density and larval growth rates. Aquaculture
    Vitenskapelig artikkel
  • Alfredsen, Jo Arve; Holand, Bård; Solvang-Garten, Torfinn; Uglem, I. (2007) Feeding activity and opercular pressure transients in Atlantic salmon (Salmo salar L.): applications to feeding management in fish farming. Springer
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Alfredsen, Jo Arve; Holand, Bård; Solvang-Garten, Torfinn; Uglem, I. (2007) Feeding activity and opercular pressure transients in Atlantic salmon (Salmo salar L.): application to feeding management in fish farming. Hydrobiologia
    Vitenskapelig artikkel
  • Alver, Morten; Tennoy, T; Alfredsen, Jo Arve; Oie, G. (2007) Automatic measurement of rotifer Brachionus plicatilis densities in first feeding tanks. Aquacultural Engineering
    Vitenskapelig artikkel

2006

  • Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2006) An individual-based population model for rotifer (Brachionus plicatilis) cultures. Hydrobiologia
    Vitenskapelig artikkel

2005

  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor. (2005) A system for model based biomass estimation of larvae in intensive cod larvicultures. Aquaculture International
    Vitenskapelig artikkel

2004

  • Alver, Morten; Alfredsen, Jo Arve; Sigholt, Trygve. (2004) Dynamic modelling of pellet distribution in Atlantic salmon (Salmo salar L.) cages. Aquacultural Engineering
    Vitenskapelig artikkel

Tidsskriftspublikasjoner

  • Dallolio, Alberto; Bjerck, Helge Bostwick; Urke, Henning Andre; Alfredsen, Jo Arve. (2022) A Persistent Sea-Going Platform for Robotic Fish Telemetry Using a Wave-Propelled USV: Technical Solution and Proof-of-Concept. Frontiers in Marine Science
    Vitenskapelig artikkel
  • Alver, Morten; Føre, Martin; Alfredsen, Jo Arve. (2022) Predicting oxygen levels in Atlantic salmon (Salmo salar) sea cages. Aquaculture
    Vitenskapelig artikkel
  • Dallolio, Alberto; Øveraas, Henning; Alfredsen, Jo Arve; Fossen, Thor Inge; Johansen, Tor Arne. (2022) Design and Validation of a Course Control System for a Wave-Propelled Unmanned Surface Vehicle. Field Robotics
    Vitenskapelig artikkel
  • Ulvund, John Birger; Engebretsen, Solveig; Alfredsen, Jo Arve; Kristensen, Torstein; Urke, Henning André; Jansen, Peder A.. (2021) Behavioural response of farmed Atlantic salmon (Salmo salar L.) to artificial underwater lights: Wavelet analysis of acoustic telemetry data. Aquacultural Engineering
    Vitenskapelig artikkel
  • Dallolio, Alberto; Alfredsen, Jo Arve; Fossen, Thor Inge; Johansen, Tor Arne. (2021) Experimental Validation of a Nonlinear Wave Encounter Frequency Estimator Onboard a Wave-Propelled USV. IFAC-PapersOnLine
    Vitenskapelig artikkel
  • Svendsen, Eirik; Økland, Finn; Føre, Martin; Randeberg, Lise Lyngsnes; Finstad, Bengt; Olsen, Rolf Erik. (2021) Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar). Animal Biotelemetry
    Vitenskapelig artikkel
  • Bjerck, Helge Bostwick; Urke, Henning Andre; Haugen, Thrond Oddvar; Alfredsen, Jo Arve; Ulvund, John Birger; Kristensen, Torstein. (2021) Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords. Scientific Reports
    Vitenskapelig artikkel
  • Alfredsen, Knut; Urke, Henning Andre; Kristensen, Torstein; Kvakland, Marte; Grønningsæter, Åge; Hagen, Anders Gjørwad. (2021) An acoustic sensor transmitter for in situ assessment of water quality and fish behaviour during chemical treatment of a parasite-infected river system: tag design and practical use . Animal Biotelemetry
    Vitenskapelig artikkel
  • Jonsdottir, Kristbjørg Edda; Pascal, Klebert; Volent, Zsolt; Alfredsen, Jo Arve. (2021) Characteristic current flow through a stocked conical sea-cage with permeable lice shielding skirt. Ocean Engineering
    Vitenskapelig artikkel
  • Jónsdóttir, Kristbjörg Edda; Volent, Zsolt; Alfredsen, Jo Arve. (2021) Current flow and dissolved oxygen in a full-scale stocked fish-cage with and without lice shielding skirts. Applied Ocean Research
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Økland, Finn; Gräns, Albin; Alfredsen, Jo Arve; Finstad, Bengt. (2021) Heart rate and swimming activity as indicators of post-surgical recovery time of Atlantic salmon (Salmo salar). Animal Biotelemetry
    Vitenskapelig artikkel
  • Jónsdóttir, Kristbjörg Edda; Volent, Zsolt; Alfredsen, Jo Arve. (2020) Dynamics of dissolved oxygen inside salmon sea-cages with lice shielding skirts at two hydrographically different sites. Aquaculture Environment Interactions
    Vitenskapelig artikkel
  • Svendsen, Eirik; Føre, Martin; Økland, Finn; Gräns, Albin; Hedger, Richard David; Alfredsen, Jo Arve. (2020) Heart rate and swimming activity as stress indicators for Atlantic salmon (Salmo salar). Aquaculture
    Vitenskapelig artikkel
  • Aas, Turid Synnøve; Ytrestøyl, Trine; Åsgård, Torbjørn Einar; Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2020) Feed intake in Atlantic salmon fed with or without surface spreading of feed. Journal of Agricultural and Marine Sciences (JAMS)
    Vitenskapelig artikkel
  • Hassan, Waseem; Føre, Martin; Pedersen, Magnus Oshaug; Alfredsen, Jo Arve. (2020) A new method for measuring free-ranging fish swimming speed in commercial marine farms using Doppler principle. IEEE Sensors Journal
    Vitenskapelig artikkel
  • Kruusmaa, Maarja; Gkliva, R.; Tuhtan, J.A.; Tuvikene, A.; Alfredsen, Jo Arve. (2020) Salmon behavioural response to robots in an aquaculture sea cage. Royal Society Open Science
    Vitenskapelig artikkel
  • Jónsdóttir, Kristbjörg Edda; Hvas, Malthe; Alfredsen, Jo Arve; Føre, Martin; Alver, Morten; Bjelland, Hans Vanhauwaert. (2019) Fish Welfare Based Classification Method of Ocean Current Speeds at Aquaculture Sites. Aquaculture Environment Interactions
    Vitenskapelig artikkel
  • Hassan, Waseem; Føre, Martin; Ulvund, John Birger; Alfredsen, Jo Arve. (2019) Internet of Fish: Integration of acoustic telemetry with LPWAN for efficient real-time monitoring of fish in marine farms. Computers and Electronics in Agriculture
    Vitenskapelig artikkel
  • jain, praveen; Zolich, Artur Piotr; Erstorp, E; Johansen, Tor Arne; Alfredsen, Jo Arve; Aguiar, A Pedro. (2018) Localization of an Acoustic Fish-Tag using the Time-of-Arrival Measurements: Preliminary results using eXogenous Kalman Filter. Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Alfredsen, Jo Arve; Uglem, Ingebrigt; Bloecher, Nina; Sveier, Harald. (2018) Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar). Aquaculture
    Vitenskapelig artikkel
  • Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Senneset, Gunnar; Espmark, Åsa Maria Olofsdotter; Terjesen, Bendik Fyhn. (2018) Modelling how the physical scale of experimental tanks affects salmon growth performance. Aquaculture
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2018) Modelling and simulation of rotary feed spreaders with application to sea cage aquaculture - A study of common and alternative designs. Aquacultural Engineering
    Vitenskapelig artikkel
  • Føre, Martin; Frank, Kevin; Dempster, T; Alfredsen, Jo Arve; Høy, Erik. (2017) Biomonitoring using tagged sentinel fish and acoustic telemetry in commercial salmon aquaculture: A feasibility study. Aquacultural Engineering
    Vitenskapelig artikkel
  • Føre, Martin; Frank, Kevin; Norton, Tomas; Svendsen, Eirik; Alfredsen, Jo Arve; Dempster, Timothy David. (2017) Precision fish farming: A new framework to improve production in aquaculture. Biosystems Engineering
    Vitenskapelig artikkel
  • Føre, Martin; Svendsen, Eirik; Frank, Kevin; Schellewald, Christian; Sunde, Leif Magne; Stahl, Annette. (2017) LAKSIT:Telemetri og maskinsyn for overvåkning og dokumentasjon av fiskevelferd i avlusningsprosesser. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Marafioti, Giancarlo; Senneset, Gunnar; Birkevold, Jens. (2016) Modelling growth performance and feeding behaviour of Atlantic salmon (Salmo salar L.) in commercial-size aquaculture net pens: Model details and validation through full-scale experiments. Aquaculture
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Zolich, Artur Piotr; Alfredsen, Jo Arve. (2016) Feed spreaders in sea cage aquaculture – Motion characterization and measurement of spatial pellet distribution using an unmanned aerial vehicle. Computers and Electronics in Agriculture
    Vitenskapelig artikkel
  • Alver, Morten; Skøien, Kristoffer Rist; Føre, Martin; Aas, Turid Synnøve; Oehme, Maike; Alfredsen, Jo Arve. (2016) Modelling of surface and 3D pellet distribution in Atlantic salmon (Salmo salar L.) cages. Aquacultural Engineering
    Vitenskapelig artikkel
  • Skøien, Kristoffer Rist; Aas, Turid Synnøve; Alver, Morten; Romarheim, Odd Helge; Alfredsen, Jo Arve. (2016) Intrinsic settling rate and spatial diffusion properties of extruded fish feed pellets. Aquacultural Engineering
    Vitenskapelig artikkel
  • Føre, Martin; Frank, Kevin; Høy, Erik; Alfredsen, Jo Arve; Dempster, Tim; Sunde, Leif Magne. (2015) Trådløs dataoverføring under vann muliggjør online overvåkning av laksens tilstand og velferd. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Alfredsen, Jo Arve. (2014) Modellbasert fôrdistribusjon i oppdrett. Teknisk Ukeblad
    Fagartikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar. (2013) Pellet distribution modelling: a tool for improved feed delivery in sea cages. International Aquafeed
    Kronikk
  • Urke, Henning Andre; Kristensen, Torstein; Ulvund, John Birger; Alfredsen, Jo Arve. (2013) Riverine and fjord migration of wild and hatchery-reared Atlantic salmon smolts. Fisheries Management and Ecology
    Vitenskapelig artikkel
  • Alfredsen, Jo Arve; Marafioti, Giancarlo. (2013) Hvor mye laks er det egentlig i merden? Del 3: Optimal biomasseestimering ved kombinasjon av målinger og vekstmodell. Norsk Fiskeoppdrett
    Populærvitenskapelig artikkel
  • Alfredsen, Jo Arve; Alver, Morten; Eriksen, Tor-Inge J. (2013) Architecture for automation and telepresence in a marine hatchery laboratory. Communications in agricultural and applied biological sciences
    Sammendrag/abstract
  • Føre, Martin; Dempster, Timothy David; Alfredsen, Jo Arve; Oppedal, Frode. (2013) Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: Using artificial light to control swimming depth. Aquaculture
    Vitenskapelig artikkel
  • Føre, Martin; Alfredsen, Jo Arve; Åge, Grønningsæter. (2011) Development of two telemetry-based systems for monitoring the feeding behaviour of Atlantic salmon (Salmo salar L.) in aquaculture sea-cages. Computers and Electronics in Agriculture
    Vitenskapelig artikkel
  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor; Storøy, Werner; Olsen, Yngvar. (2010) Automatic control of growth and density in rotifer cultures. Aquacultural Engineering
    Vitenskapelig artikkel
  • Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Special Publications (European Aquaculture Society)
    Sammendrag/abstract
  • Føre, Martin; Dempster, T; Alfredsen, Jo Arve; Johansen, V; Johansson, D. (2009) Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: A Lagrangian approach. Aquaculture
    Vitenskapelig artikkel
  • Alver, Morten; Tennøy, Tormod; Alfredsen, Jo Arve; Øie, Gunvor; Olsen, Yngvar. (2008) Automatic control of rotifer density in larval first feeding tanks. Control Engineering Practice
    Vitenskapelig artikkel
  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor. (2007) Estimating larval density in cod (Gadus morhua) first feeding tanks using measurements of feed density and larval growth rates. Aquaculture
    Vitenskapelig artikkel
  • Alfredsen, Jo Arve; Holand, Bård; Solvang-Garten, Torfinn; Uglem, I. (2007) Feeding activity and opercular pressure transients in Atlantic salmon (Salmo salar L.): application to feeding management in fish farming. Hydrobiologia
    Vitenskapelig artikkel
  • Alver, Morten; Tennoy, T; Alfredsen, Jo Arve; Oie, G. (2007) Automatic measurement of rotifer Brachionus plicatilis densities in first feeding tanks. Aquacultural Engineering
    Vitenskapelig artikkel
  • Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2006) An individual-based population model for rotifer (Brachionus plicatilis) cultures. Hydrobiologia
    Vitenskapelig artikkel
  • Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor. (2005) A system for model based biomass estimation of larvae in intensive cod larvicultures. Aquaculture International
    Vitenskapelig artikkel
  • Alver, Morten; Alfredsen, Jo Arve; Sigholt, Trygve. (2004) Dynamic modelling of pellet distribution in Atlantic salmon (Salmo salar L.) cages. Aquacultural Engineering
    Vitenskapelig artikkel

Del av bok/rapport

  • Svendsen, Eirik; Føre, Martin; Randeberg, Lise Lyngsnes; Alfredsen, Jo Arve. (2021) Design of a novel biosensor implant for farmed Atlantic salmon (Salmo salar). IEEE Sensors Council
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Dallolio, Alberto; Bendik Olai, Agdal; Zolich, Artur Piotr; Alfredsen, Jo Arve; Johansen, Tor Arne. (2019) Long-Endurance Green Energy Autonomous Surface Vehicle Control Architecture. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Hassan, Waseem; Føre, Martin; Urke, Henning Andre; Kristensen, Torstein; Ulvund, John Birger; Alfredsen, Jo Arve. (2019) System for Real-Time Positioning and Monitoring of Fish in Commercial Marine Farms Based on Acoustic Telemetry and Internet of Fish (IoF). International Society of Offshore & Polar Engineers
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Hassan, Waseem; Føre, Martin; Pedersen, Magnus Oshaug; Alfredsen, Jo Arve. (2019) A novel Doppler based speed measurement technique for individual free-ranging fish. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Yan, Sheng; Alfredsen, Jo Arve. (2018) Infrared depth camera system for real-time european lobster behavior analysis. SciTePress
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Haugaløkken, Bent Oddvar Arnesen; Sandøy, Stian Skaalvik; Schjølberg, Ingrid; Alfredsen, Jo Arve; Utne, Ingrid Bouwer. (2018) Probabilistic Localization and Mapping of Flexible Underwater Structures using Octomap. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Lundregan, Sarah; Frank, Kevin; Alfredsen, Jo Arve. (2017) Effects of wind on surface feed distribution in sea cage aquaculture: A simulation study. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Yan, Sheng; Alfredsen, Jo Arve. (2017) Real time lobster posture estimation for behavior research. SPIE - The International Society for Optics and Photonics
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Zolich, Artur Piotr; Johansen, Tor Arne; Alfredsen, Jo Arve; Kuttenkeuler, J; Erstorp, E. (2017) A Formation of Unmanned Vehicles for Tracking of an Acoustic Fish-Tag. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Yan, Sheng; Alfredsen, Jo Arve. (2017) Automatic Video Analysis of Stage IV European Lobster Juveniles for their Aggressive Behavior Assessment. IET Digital Library
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Zolich, Artur Piotr; Alfredsen, Jo Arve; Johansen, Tor Arne; Skøien, Kristoffer Rist. (2016) A communication bridge between underwater sensors and unmanned vehicles using a surface wireless sensor network - design and validation. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2015) Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Skøien, Kristoffer Rist; Alfredsen, Jo Arve. (2014) Feeding of large-scale fish farms: Motion characterization of a pneumatic rotor feed spreader. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. IEEE Signal Processing Society
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Alfredsen, Jo Arve; Holand, Bård; Solvang-Garten, Torfinn; Uglem, I. (2007) Feeding activity and opercular pressure transients in Atlantic salmon (Salmo salar L.): applications to feeding management in fish farming. Springer
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Undervisning

Emner

  • TTK4155 - Industrielle og innbygde datasystemers konstruksjon
  • TK8108 - Doktorgradsseminar i fiskeri og havbrukskybernetikk

Formidling

2021

  • Vitenskapelig foredrag
    Dallolio, Alberto; Alfredsen, Jo Arve; Fossen, Thor Inge; Johansen, Tor Arne. (2021) Experimental Validation of a Nonlinear Wave Encounter Frequency Estimator Onboard a Wave-Propelled USV. IFAC 13th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles , Online Conference - Oldenburg, Germany 2021-09-22 - 2021-09-24

2020

  • Populærvitenskapelig foredrag
    Schrøder, Merete Bjørgan; Svendsen, Eirik; Finstad, Bengt; Olsen, Rolf Erik; Gräns, Albin; Økland, Finn. (2020) Teknologiske løsninger for sanntidsmålinger av atferd og fysiologisk tilstand hos fisk. Forskningsrådet HAVBRUK2020 , Online virtuell konferanse 2020-06-09 - 2020-06-10

2019

  • Poster
    Føre, Martin; Finstad, Bengt; Svendsen, Eirik; Gräns, Albin; Økland, Finn; Rosten, Carolyn. (2019) Exploring new technologies for detecting stress in farmed salmon: Initial trials in tank based facilities. European Aquaculture Society Aquaculture 19 , Berlin 2019-10-07 - 2019-10-10
  • Vitenskapelig foredrag
    Dallolio, Alberto; Agdal, Bendik; Zolich, Artur Piotr; Alfredsen, Jo Arve; Johansen, Tor Arne. (2019) Long-Endurance Green Energy Autonomous Surface Vehicle Control Architecture. IEEE/MTS OCEANS 2019 , Seattle 2019-10-27 - 2019-10-31

2018

  • Vitenskapelig foredrag
    Haugaløkken, Bent Oddvar Arnesen; Sandøy, Stian Skaalvik; Schjølberg, Ingrid; Alfredsen, Jo Arve; Utne, Ingrid Bouwer. (2018) Probabilistic Localization and Mapping of Flexible Underwater Structures using Octomap. European Control Conference 2018 2018-06-12 - 2018-06-15
  • Vitenskapelig foredrag
    Ulvund, John Birger; Alfredsen, Jo Arve; Urke, Henning Andre; Kristensen, Torstein. (2018) Optimized use of Cyclopterus lumpus in the fight against Lepeophtheirus salmonis in salmon farming. American Fisheries Society 13th International Congress on the Biology of Fish , Calgary, Alberta 2018-07-15 - 2018-07-19
  • Vitenskapelig foredrag
    jain, praveen; Zolich, Artur Piotr; Erstorp, E; Johansen, Tor Arne; Alfredsen, Jo Arve; Aguiar, A Pedro. (2018) Localization of an Acoustic Fish-Tag using the Time-of-Arrival Measurements: Preliminary results using eXogenous Kalman Filter. IEEE IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) , Madrid 2018-10-01 - 2018-10-05

2017

  • Vitenskapelig foredrag
    Zolich, Artur Piotr; Johansen, Tor Arne; Alfredsen, Jo Arve; Kuttenkeuler, J; Erstorp, E. (2017) A Formation of Unmanned Vehicles for Tracking of an Acoustic Fish-Tag. IEEE IEEE OCEANS , Anchorage 2017-09-18 - 2017-09-21
  • Populærvitenskapelig foredrag
    Bloecher, Nina; Føre, Martin; Frank, Kevin; Svendsen, Eirik; Schellewald, Christian; Sunde, Leif Magne. (2017) Acoustic telemetry and computer vision methods for monitoring and documenting farmed fish behaviour during delousing operations. European Aquaculture Society Aquaculture Europe 2017 , Dubrovnik 2017-10-17 - 2017-10-20

2016

  • Vitenskapelig foredrag
    Skøien, Kristoffer Rist; Alver, Morten; Lundregan, Sarah; Frank, Kevin; Alfredsen, Jo Arve. (2016) Effects of wind on surface feed distribution in sea cage aquaculture: A simulation study. EUCA, CSS, IFAC Control Conference (ECC), 2016 European , Aalborg 2016-06-29 - 2016-07-01

2015

  • Vitenskapelig foredrag
    Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2015) Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders. IEEE, CSS Control and Automation (MED), 2015 23th Mediterranean Conference on , Torremolinos 2015-06-16 - 2015-06-19

2014

  • Vitenskapelig foredrag
    Alfredsen, Jo Arve. (2014) Fish and chips - Fisheries research and acoustic tag technology. Univ. Porto,The Underwater Systems and Technology Laboratory ENVIRONMENTAL MONITORING AND SURVEILLANCE CHALLENGES, SOLUTIONS AND OPPORTUNITIES (EMS2014) , Porto 2014-12-04 - 2014-12-05
  • Vitenskapelig foredrag
    Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Terjesen, Bendik Fyhn; Espmark, Åsa Maria Olofsdotter; Senneset, Gunnar. (2014) A numerical model of how the physical scale of aquaculture production units affects salmon performance. The European Aquaculture Society Aquaculture Europe 2014 , Donostia - San Sebastian 2014-10-14 - 2014-10-17
  • Vitenskapelig foredrag
    Føre, Martin; Alver, Morten; Alfredsen, Jo Arve; Terjesen, Bendik Fyhn; Espmark, Åsa Maria Olofsdotter; Senneset, Gunnar. (2014) Simulating the effect of unit size and feed delivery on fish growth. European Aquaculture Society Aquaculture Europe 2014 , San Sebastian 2014-10-14 - 2014-10-17
  • Vitenskapelig foredrag
    Føre, Martin; Lange, Guttorm; Frank, Kevin; Høy, Erik; Alfredsen, Jo Arve; Dempster, Timothy David. (2014) Telefish: Acoustic telemetry based monitoring of aquaculture fish farms. European Aquaculture Society Aquaculture Europe 2014 , San Sebastian 2014-10-14 - 2014-10-17
  • Vitenskapelig foredrag
    Skøien, Kristoffer Rist; Alfredsen, Jo Arve. (2014) Feeding of Large-Scale Fish Farms: Motion Characterization of a Pneumatic Rotor Feed Spreader. MTS/IEEE OCEANS'14 MTS/IEEE St. John's , St. John's 2014-09-14 - 2014-09-19
  • Poster
    Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. IEEE Signal Processing Society IEEE International Conference on Image Processing , Paris 2014-10-27 - 2014-10-30
  • Poster
    Skøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. NTNU - ITK Department of Engineering Cybernetics - 60 year jubilee , Trondheim 2014-11-07 - 2014-11-07
  • Populærvitenskapelig foredrag
    Skøien, Kristoffer Rist; Alver, Morten; Aas, Turid Synnøve; Åsgård, Torbjørn Einar; Føre, Martin; Alfredsen, Jo Arve. (2014) Spredning og kontroll av fôr i merd. SINTEF CREATE 2014-11-12 - 2014-11-12
  • Vitenskapelig foredrag
    Espmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Victor; Lange, Guttorm; Alfredsen, Jo Arve. (2014) Comparing performance of Atlantic salmon in sea cages and different tank sizes. The European Aquaculture Society Aquaculture Europe 2014 , San Sebastian 2014-10-14 - 2014-10-17
  • Vitenskapelig foredrag
    Espmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Victor; Lange, Guttorm; Alfredsen, Jo Arve. (2014) Can the industry rely on small scale research?. The European Aquaculture Society Aquaculture Europe 2014 , Donostia - San Sebastian 2014-10-14 - 2014-10-17

2013

  • Populærvitenskapelig foredrag
    Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar. (2013) Modellbasert pelletplassering i stormerd - neste skritt?. SINTEF Fisheries and Aquaculture TEKMAR , Trondheim 2013-12-03 - 2013-12-04
  • Vitenskapelig foredrag
    Skøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar. (2013) Modelling and measurement of feed concentrations in salmon cages - Tools for optimization of feeding. AQUACULTURE EUROPE 2013 , Trondheim 2013-08-09 - 2013-08-12
  • Faglig foredrag
    Espmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Viktor; Lange, Guttorm; Alfredsen, Jo Arve. (2013) Tank size in experimental design matters. European Aquaculture Society’s Annual Conference, EAS 2013 , Trondheim 2013-08-12 -
  • Vitenskapelig foredrag
    Alfredsen, Jo Arve; Alver, Morten; Eriksen, Tor-Inge. (2013) ARCHITECTURE FOR AUTOMATION AND TELEPRESENCE IN A MARINE HATCHERY LABORATORY. Ghent university 6th fish & shellfish larviculture symposium, Larvi 2013, belgium 2-5 september 2013 , Ghent 2013-09-02 - 2013-09-05

2012

  • Poster
    Marafioti, Giancarlo; Alfredsen, Jo Arve; Alver, Morten. (2012) Estimering av vekst hos oppdrettslaks (Salmo Salar L.) med utgangspunkt i dynamisk energibudsjett-modell (DEB) of Kalman-filtering. Havbruk 2012 2012-04-16 - 2012-04-18
  • Poster
    Marafioti, Giancarlo; Alfredsen, Jo Arve; Alver, Morten. (2012) Estimation of growth in farmed Atlantic salmon Salmo Salar L. based on Dynamic Energy Budget (DEB) model and Kalman filtering. AQUA 2012 2012-09-01 - 2012-09-05

2011

  • Vitenskapelig foredrag
    Kristensen, Torstein; Urke, Henning Andre; Haugen, Thrond Oddvar; Alfredsen, Jo Arve; Alfredsen, Knut; Rosseland, Bjørn Olav. (2011) Sea trout (Salmo trutta) migratory patterns in a large and complex fjord: comparing old mark-recapture and recent acoustic telemetry studies in Sognefjorden, Norway. Hokkaido University 1st International Conference on Fish Telemetry , Sapporo 2011-06-12 - 2011-06-18
  • Vitenskapelig foredrag
    Alfredsen, Jo Arve; Føre, Martin; Grønningsæter, Aage; Kristensen, Torstein; Urke, Henning Andre. (2011) Using internal data processing capacity to enhance the information output from acoustic transmitter tags. Hokkaido University 1.st international conference on fish telemetry , Sapporo 2011-06-14 - 2011-06-18
  • Poster
    Urke, H A.; Alfredsen, Knut; Kristensen, Torstein; Gjørwad hagen, A; Kvakland, M; Grønningsæter, Åge. (2011) Conductivity and thermal habitat preferences of Atlantic salmon (Salmo sala) and sea trout (Salmo trutta) in a river system before, during and after an aluminium sulphate treatment. Hokkaido University 1st international conference on fish telemetry , Sapporo 2011-06-13 - 2011-06-18

2010

  • Vitenskapelig foredrag
    Alfredsen, Jo Arve. (2010) Utvikling av nye måleprinsipper basert på akustisk telemetri for overvåkning av oppdrettslaks. Norwegian research council Programkonferansen HAVBRUK 2010 , Trondheim 2010-04-19 - 2010-04-21
  • Vitenskapelig foredrag
    Alver, Morten; Alfredsen, Jo Arve; Storøy, Werner; Li, Keshuai; Bardal, Tora; Overrein, Ingrid. (2010) Prosessovervåkning og styring i neste generasjons klekkeri. Norges Forskningsråd Programkonferansen HAVBRUK , Trondheim 2010-04-19 - 2010-04-21
  • Vitenskapelig foredrag
    Øie, Gunvor; Alver, Morten; Storøy, Werner; Bardal, Tora; Overrein, Ingrid; Alfredsen, Jo Arve. (2010) Automation in Marine Larviculture With Use of Copepods (Acartia tonsa) as Live Food. European Aquaculture Society Aquaculture Europe 2010 , Porto 2010-10-05 - 2010-10-08

2009

  • Vitenskapelig foredrag
    Føre, Martin; Alfredsen, Jo Arve. (2009) A software tool for interpretation of fish telemetry data from fish farms. European Aquaculture Society European Aquaculture Conference 2009 , TRONDHEIM 2009-08-14 - 2009-08-17
  • Vitenskapelig foredrag
    Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Ghent University Larvi 2009 – 5th fish & shellfish larviculture symposium , Ghent 2009-09-07 - 2009-09-10
  • Vitenskapelig foredrag
    Alver, Morten; Øie, Gunvor; Olsen, Yngvar; Alfredsen, Jo Arve. (2009) Process monitoring and control in the next generation hatchery. Ghent University Larvi 2009 5th fish & shellfish larviculture symposium , Gent 2009-09-07 - 2009-09-10
  • Populærvitenskapelig foredrag
    Alfredsen, Jo Arve. (2009) Havbruk og kybernetikk. Norsk Forening for Automatisering Servomøtet 2009 , TRONDHEIM 2009-10-20 - 2009-10-20

2008

  • Populærvitenskapelig foredrag
    Kjørsvik, Elin; Attramadal, Kari; Øie, Gunvor; Alfredsen, Jo Arve; Alver, Morten; Larssen, Harald. (2008) CODTECH En prosessorientert tilnærming til intensiv produksjon av marin fiskeyngel med hovedfokus på torsk. Norges forskningsråd Faktaark for forskningsprogrammet "Havbruk - en næring i vekst" 2008-10-28 -

2007

  • Vitenskapelig foredrag
    Føre, Martin; Alfredsen, Jo Arve. (2007) Modelling and simulation of fish behaviour in sea-cages. European Aquaculture Society Aquaculture Europe , Istanbul 2007-10-24 - 2007-10-27
  • Vitenskapelig foredrag
    Alver, Morten; Alfredsen, Jo Arve. (2007) Automatic control of rotifer Brachionus plicatilis cultures. European Aquaculture Society Aquaculture Europe 2007 , Istanbul 2007-10-25 - 2007-10-27

2006

  • Poster
    Høy, Erik; Alfredsen, Jo Arve; Alver, Morten; Øie, Gunvor; Olsen, Yngvar. (2006) Computer controlled appetite feeding of marine larvae. World Aquaculture Society Aqua 2006 , Firenze 2006-05-09 - 2006-05-12

2005

  • Vitenskapelig foredrag
    Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2005) An individual based model for estimating nutritional value of rotifers (Brachionus plicatilis) as start feed for fish larvae. European Aquaculture Society Aquaculture Europe 2005 , Trondheim 2005-08-09 - 2005-08-12
  • Vitenskapelig foredrag
    Alfredsen, Jo Arve; Solvang, Torfinn; Holand, Bård. (2005) Feeding activity and opercular pressure transients in Atlantic salmon (Salmo salar L.): application to feeding management in fish farming. The 6th fish telemetry conference held in Europe , Sesimbra 2005-06-05 - 2005-06-10

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