Jo Arve Alfredsen

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.

Kybernetikk

Publikasjoner

2022

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
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

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. IEEE International Conference on Intelligent Robots and Systems. Proceedings
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

Tidsskriftspublikasjoner

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
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
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. IEEE International Conference on Intelligent Robots and Systems. Proceedings
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

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