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 |
|
|
TTK8108 |
Topics in Fisheries and Aquaculture Cybernetics for PhD students |
|
TTK15 |
|
|
- |
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
Publikasjoner
2022
-
Alver, Morten;
Føre, Martin;
Alfredsen, Jo Arve.
(2022)
Predicting oxygen levels in Atlantic salmon (Salmo salar) sea cages.
Aquaculture.
volum 548.
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.
volum 9.
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.
volum 2.
Vitenskapelig artikkel
2021
-
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.
volum 54 (16).
Vitenskapelig artikkel
-
Alfredsen, Knut;
Urke, Henning Andre;
Kristensen, Torstein;
Kvakland, Marte;
Grønningsæter, Åge;
Hagen, Anders Gjørwad;
Alfredsen, Jo Arve.
(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.
volum 9 (7).
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.
volum 11.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Økland, Finn;
Gräns, Albin;
Alfredsen, Jo Arve;
Finstad, Bengt;
Hedger, Richard David;
Uglem, Ingebrigt.
(2021)
Heart rate and swimming activity as indicators of post-surgical recovery time of Atlantic salmon (Salmo salar).
Animal Biotelemetry.
volum 9.
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.
volum 108:102509.
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.
volum 223.
Vitenskapelig artikkel
-
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 2021 Conference Proceedings.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Svendsen, Eirik;
Økland, Finn;
Føre, Martin;
Randeberg, Lise Lyngsnes;
Finstad, Bengt;
Olsen, Rolf Erik;
Alfredsen, Jo Arve.
(2021)
Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar).
Animal Biotelemetry.
volum 9 (41).
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.
volum 95.
Vitenskapelig artikkel
2020
-
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).
volum 25 (1).
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.
volum 20 (17).
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.
volum 12.
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.
volum 7 (3).
Vitenskapelig artikkel
-
Svendsen, Eirik;
Føre, Martin;
Økland, Finn;
Gräns, Albin;
Hedger, Richard David;
Alfredsen, Jo Arve;
Uglem, Ingebrigt;
Rosten, Carolyn;
Frank, Kevin;
Erikson, Ulf Gøran;
Finstad, Bengt.
(2020)
Heart rate and swimming activity as stress indicators for Atlantic salmon (Salmo salar).
Aquaculture.
volum 531.
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.
Proceedings of OCEANS 2019 MTS/IEEE SEATTLE.
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.
2019 IEEE SENSORS Proceedings.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
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.
volum 163.
Vitenskapelig artikkel
-
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).
The 29th International Ocean and Polar Engineering Conference.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Jónsdóttir, Kristbjörg Edda;
Hvas, Malthe;
Alfredsen, Jo Arve;
Føre, Martin;
Alver, Morten;
Bjelland, Hans Vanhauwaert;
Oppedal, Frode.
(2019)
Fish Welfare Based Classification Method of Ocean Current Speeds at Aquaculture Sites.
Aquaculture Environment Interactions.
volum 11.
Vitenskapelig artikkel
2018
-
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.
volum 495.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Alfredsen, Jo Arve;
Uglem, Ingebrigt;
Bloecher, Nina;
Sveier, Harald;
Sunde, Leif Magne;
Frank, Kevin.
(2018)
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar).
Aquaculture.
volum 495.
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.
2018 European Control Conference (ECC).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
jain, praveen;
Zolich, Artur Piotr;
Erstorp, E;
Johansen, Tor Arne;
Alfredsen, Jo Arve;
Aguiar, A Pedro;
Kuttenkeuler, J;
Sousa, João Borges de.
(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
-
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.
volum 82.
Vitenskapelig artikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2018)
Infrared depth camera system for real-time european lobster behavior analysis.
Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications.
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.
volum 78.
Vitenskapelig artikkel
-
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.
(2017)
Precision fish farming: A new framework to improve production in aquaculture.
Biosystems Engineering.
volum 173.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Frank, Kevin;
Schellewald, Christian;
Sunde, Leif Magne;
Stahl, Annette;
Alfredsen, Jo Arve.
(2017)
LAKSIT:Telemetri og maskinsyn for overvåkning og dokumentasjon av fiskevelferd i avlusningsprosesser.
Norsk Fiskeoppdrett.
volum 4.
Populærvitenskapelig 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.
Control Conference (ECC), 2016 European.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2017)
Automatic Video Analysis of Stage IV European Lobster Juveniles for their Aggressive Behavior Assessment.
8th International Conference of Pattern Recognition Systems (ICPRS 2017).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2017)
Real time lobster posture estimation for behavior research.
Proc. SPIE 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016).
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.
OCEANS 2017 MTS/IEEE Anchorage.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2016
-
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.
volum 72-73.
Vitenskapelig artikkel
-
Føre, Martin;
Alver, Morten;
Alfredsen, Jo Arve;
Marafioti, Giancarlo;
Senneset, Gunnar;
Birkevold, Jens;
Willumsen, Finn Victor;
Lange, Guttorm;
Espmark, Åsa Maria Olofsdotter;
Terjesen, Bendik Fyhn.
(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.
volum 464.
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.
volum 74.
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.
volum 129.
Vitenskapelig artikkel
-
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.
OCEANS 2016 Shanghai - MTS/IEEE.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
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.
volum 9.
Populærvitenskapelig artikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Alfredsen, Jo Arve.
(2015)
Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders.
Control and Automation (MED), 2015 23th Mediterranean Conference on.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2014
-
Skøien, Kristoffer Rist;
Alfredsen, Jo Arve.
(2014)
Feeding of large-scale fish farms: Motion characterization of a pneumatic rotor feed spreader.
OCEANS'14 MTS/IEEE St. John's, 14-19 September.
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.
Image Processing (ICIP), 2014 IEEE International Conference on.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Føre, Martin;
Alfredsen, Jo Arve.
(2014)
Modellbasert fôrdistribusjon i oppdrett.
Teknisk Ukeblad.
Faglig artikkel
2013
-
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.
volum 78 (10).
Sammendrag/abstract
-
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
-
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.
volum 388.
Vitenskapelig artikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Føre, Martin;
Solvang-Garten, Torfinn;
Aas, Turid Synnøve;
Åsgård, Torbjørn Einar;
Alfredsen, Jo Arve.
(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.
volum 20 (6).
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.
volum 76 (2).
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.
volum 43 (1).
Vitenskapelig artikkel
2009
-
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.
volum 288 (3-4).
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
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.
volum 16.
Vitenskapelig artikkel
2007
-
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.
volum 582.
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.
Developments in fish telemetry.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
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.
volum 268.
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.
volum 36.
Vitenskapelig artikkel
2006
-
Alver, Morten;
Alfredsen, Jo Arve;
Olsen, Yngvar.
(2006)
An individual-based population model for rotifer (Brachionus plicatilis) cultures.
Hydrobiologia.
volum 560 (1).
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.
volum 13.
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.
volum 31.
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Alver, Morten;
Føre, Martin;
Alfredsen, Jo Arve.
(2022)
Predicting oxygen levels in Atlantic salmon (Salmo salar) sea cages.
Aquaculture.
volum 548.
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.
volum 9.
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.
volum 2.
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.
volum 54 (16).
Vitenskapelig artikkel
-
Alfredsen, Knut;
Urke, Henning Andre;
Kristensen, Torstein;
Kvakland, Marte;
Grønningsæter, Åge;
Hagen, Anders Gjørwad;
Alfredsen, Jo Arve.
(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.
volum 9 (7).
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.
volum 11.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Økland, Finn;
Gräns, Albin;
Alfredsen, Jo Arve;
Finstad, Bengt;
Hedger, Richard David;
Uglem, Ingebrigt.
(2021)
Heart rate and swimming activity as indicators of post-surgical recovery time of Atlantic salmon (Salmo salar).
Animal Biotelemetry.
volum 9.
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.
volum 108:102509.
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.
volum 223.
Vitenskapelig artikkel
-
Svendsen, Eirik;
Økland, Finn;
Føre, Martin;
Randeberg, Lise Lyngsnes;
Finstad, Bengt;
Olsen, Rolf Erik;
Alfredsen, Jo Arve.
(2021)
Optical measurement of tissue perfusion changes as an alternative to electrocardiography for heart rate monitoring in Atlantic salmon (Salmo salar).
Animal Biotelemetry.
volum 9 (41).
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.
volum 95.
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).
volum 25 (1).
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.
volum 20 (17).
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.
volum 12.
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.
volum 7 (3).
Vitenskapelig artikkel
-
Svendsen, Eirik;
Føre, Martin;
Økland, Finn;
Gräns, Albin;
Hedger, Richard David;
Alfredsen, Jo Arve;
Uglem, Ingebrigt;
Rosten, Carolyn;
Frank, Kevin;
Erikson, Ulf Gøran;
Finstad, Bengt.
(2020)
Heart rate and swimming activity as stress indicators for Atlantic salmon (Salmo salar).
Aquaculture.
volum 531.
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.
volum 163.
Vitenskapelig artikkel
-
Jónsdóttir, Kristbjörg Edda;
Hvas, Malthe;
Alfredsen, Jo Arve;
Føre, Martin;
Alver, Morten;
Bjelland, Hans Vanhauwaert;
Oppedal, Frode.
(2019)
Fish Welfare Based Classification Method of Ocean Current Speeds at Aquaculture Sites.
Aquaculture Environment Interactions.
volum 11.
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.
volum 495.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Alfredsen, Jo Arve;
Uglem, Ingebrigt;
Bloecher, Nina;
Sveier, Harald;
Sunde, Leif Magne;
Frank, Kevin.
(2018)
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar).
Aquaculture.
volum 495.
Vitenskapelig artikkel
-
jain, praveen;
Zolich, Artur Piotr;
Erstorp, E;
Johansen, Tor Arne;
Alfredsen, Jo Arve;
Aguiar, A Pedro;
Kuttenkeuler, J;
Sousa, João Borges de.
(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
-
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.
volum 82.
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.
volum 78.
Vitenskapelig artikkel
-
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.
(2017)
Precision fish farming: A new framework to improve production in aquaculture.
Biosystems Engineering.
volum 173.
Vitenskapelig artikkel
-
Føre, Martin;
Svendsen, Eirik;
Frank, Kevin;
Schellewald, Christian;
Sunde, Leif Magne;
Stahl, Annette;
Alfredsen, Jo Arve.
(2017)
LAKSIT:Telemetri og maskinsyn for overvåkning og dokumentasjon av fiskevelferd i avlusningsprosesser.
Norsk Fiskeoppdrett.
volum 4.
Populærvitenskapelig 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.
volum 72-73.
Vitenskapelig artikkel
-
Føre, Martin;
Alver, Morten;
Alfredsen, Jo Arve;
Marafioti, Giancarlo;
Senneset, Gunnar;
Birkevold, Jens;
Willumsen, Finn Victor;
Lange, Guttorm;
Espmark, Åsa Maria Olofsdotter;
Terjesen, Bendik Fyhn.
(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.
volum 464.
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.
volum 74.
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.
volum 129.
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.
volum 9.
Populærvitenskapelig artikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Føre, Martin;
Alfredsen, Jo Arve.
(2014)
Modellbasert fôrdistribusjon i oppdrett.
Teknisk Ukeblad.
Faglig 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.
volum 78 (10).
Sammendrag/abstract
-
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
-
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.
volum 388.
Vitenskapelig artikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Føre, Martin;
Solvang-Garten, Torfinn;
Aas, Turid Synnøve;
Åsgård, Torbjørn Einar;
Alfredsen, Jo Arve.
(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.
volum 20 (6).
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.
volum 76 (2).
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.
volum 43 (1).
Vitenskapelig artikkel
-
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.
volum 288 (3-4).
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
-
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.
volum 16.
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.
volum 582.
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.
volum 268.
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.
volum 36.
Vitenskapelig artikkel
-
Alver, Morten;
Alfredsen, Jo Arve;
Olsen, Yngvar.
(2006)
An individual-based population model for rotifer (Brachionus plicatilis) cultures.
Hydrobiologia.
volum 560 (1).
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.
volum 13.
Vitenskapelig artikkel
-
Alver, Morten;
Alfredsen, Jo Arve;
Sigholt, Trygve.
(2004)
Dynamic modelling of pellet distribution in Atlantic salmon (Salmo salar L.) cages.
Aquacultural Engineering.
volum 31.
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 2021 Conference Proceedings.
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.
Proceedings of OCEANS 2019 MTS/IEEE SEATTLE.
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.
2019 IEEE SENSORS Proceedings.
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).
The 29th International Ocean and Polar Engineering Conference.
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.
2018 European Control Conference (ECC).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2018)
Infrared depth camera system for real-time european lobster behavior analysis.
Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications.
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.
Control Conference (ECC), 2016 European.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2017)
Automatic Video Analysis of Stage IV European Lobster Juveniles for their Aggressive Behavior Assessment.
8th International Conference of Pattern Recognition Systems (ICPRS 2017).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Yan, Sheng;
Alfredsen, Jo Arve.
(2017)
Real time lobster posture estimation for behavior research.
Proc. SPIE 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016).
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.
OCEANS 2017 MTS/IEEE Anchorage.
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.
OCEANS 2016 Shanghai - MTS/IEEE.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Skøien, Kristoffer Rist;
Alver, Morten;
Alfredsen, Jo Arve.
(2015)
Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders.
Control and Automation (MED), 2015 23th Mediterranean Conference on.
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.
OCEANS'14 MTS/IEEE St. John's, 14-19 September.
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.
Image Processing (ICIP), 2014 IEEE International Conference on.
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.
Developments in fish telemetry.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Undervisning
Emner
Formidling
2021
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Vitenskapelig foredragDallolio, 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. 13th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles . IFAC; Online Conference - Oldenburg, Germany. 2021-09-22 - 2021-09-24.
2020
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Populærvitenskapelig foredragSchrøder, Merete Bjørgan; Svendsen, Eirik; Finstad, Bengt; Olsen, Rolf Erik; Gräns, Albin; Økland, Finn; Rosten, Carolyn; Uglem, Ingebrigt; Frank, Kevin; Sunde, Leif Magne; Alfredsen, Jo Arve; Føre, Martin. (2020) Teknologiske løsninger for sanntidsmålinger av atferd og fysiologisk tilstand hos fisk. HAVBRUK2020 . Forskningsrådet; Online virtuell konferanse. 2020-06-09 - 2020-06-10.
2019
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Vitenskapelig foredragDallolio, 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.
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PosterFøre, Martin; Finstad, Bengt; Svendsen, Eirik; Gräns, Albin; Økland, Finn; Rosten, Carolyn; Uglem, Ingebrigt; Frank, Kevin; Alfredsen, Jo Arve. (2019) Exploring new technologies for detecting stress in farmed salmon: Initial trials in tank based facilities. Aquaculture 19 . European Aquaculture Society; Berlin. 2019-10-07 - 2019-10-10.
2018
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Vitenskapelig foredragHaugaløkken, 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.
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Vitenskapelig foredragjain, praveen; Zolich, Artur Piotr; Erstorp, E; Johansen, Tor Arne; Alfredsen, Jo Arve; Aguiar, A Pedro; Kuttenkeuler, J; Sousa, João Borges de. (2018) Localization of an Acoustic Fish-Tag using the Time-of-Arrival Measurements: Preliminary results using eXogenous Kalman Filter. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) . IEEE; Madrid. 2018-10-01 - 2018-10-05.
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Vitenskapelig foredragUlvund, 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. 13th International Congress on the Biology of Fish . American Fisheries Society; Calgary, Alberta. 2018-07-15 - 2018-07-19.
2017
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Populærvitenskapelig foredragBloecher, Nina; Føre, Martin; Frank, Kevin; Svendsen, Eirik; Schellewald, Christian; Sunde, Leif Magne; Alfredsen, Jo Arve; Stahl, Annette. (2017) Acoustic telemetry and computer vision methods for monitoring and documenting farmed fish behaviour during delousing operations. Aquaculture Europe 2017 . European Aquaculture Society; Dubrovnik. 2017-10-17 - 2017-10-20.
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Vitenskapelig foredragZolich, 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 OCEANS . IEEE; Anchorage. 2017-09-18 - 2017-09-21.
2016
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Vitenskapelig foredragSkøien, 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. Control Conference (ECC), 2016 European . EUCA, CSS, IFAC; Aalborg. 2016-06-29 - 2016-07-01.
2015
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Vitenskapelig foredragSkøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2015) Modelling spatial surface pellet distribution from rotary pneumatic feed spreaders. Control and Automation (MED), 2015 23th Mediterranean Conference on . IEEE, CSS; Torremolinos. 2015-06-16 - 2015-06-19.
2014
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Vitenskapelig foredragAlfredsen, Jo Arve. (2014) Fish and chips - Fisheries research and acoustic tag technology. ENVIRONMENTAL MONITORING AND SURVEILLANCE CHALLENGES, SOLUTIONS AND OPPORTUNITIES (EMS2014) . Univ. Porto,The Underwater Systems and Technology Laboratory; Porto. 2014-12-04 - 2014-12-05.
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Vitenskapelig foredragEspmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Victor; Lange, Guttorm; Alfredsen, Jo Arve; Alver, Morten; Føre, Martin; Birkevold, Jens; Senneset, Gunnar; Terjesen, Bendik Fyhn. (2014) Comparing performance of Atlantic salmon in sea cages and different tank sizes. Aquaculture Europe 2014 . The European Aquaculture Society; San Sebastian. 2014-10-14 - 2014-10-17.
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Vitenskapelig foredragEspmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Victor; Lange, Guttorm; Alfredsen, Jo Arve; Alver, Morten; Senneset, Gunnar; Birkevold, Jens; Terjesen, Bendik Fyhn. (2014) Can the industry rely on small scale research?. Aquaculture Europe 2014 . The European Aquaculture Society; Donostia - San Sebastian. 2014-10-14 - 2014-10-17.
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Vitenskapelig foredragFøre, Martin; Alver, Morten; Alfredsen, Jo Arve; Terjesen, Bendik Fyhn; Espmark, Åsa Maria Olofsdotter; Senneset, Gunnar; Willumsen, Finn Victor; Lange, Guttorm. (2014) A numerical model of how the physical scale of aquaculture production units affects salmon performance. Aquaculture Europe 2014 . The European Aquaculture Society; Donostia - San Sebastian. 2014-10-14 - 2014-10-17.
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Vitenskapelig foredragFøre, Martin; Alver, Morten; Alfredsen, Jo Arve; Terjesen, Bendik Fyhn; Espmark, Åsa Maria Olofsdotter; Senneset, Gunnar; Willumsen, Finn Victor; Lange, Guttorm. (2014) Simulating the effect of unit size and feed delivery on fish growth. Aquaculture Europe 2014 . European Aquaculture Society; San Sebastian. 2014-10-14 - 2014-10-17.
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Vitenskapelig foredragFøre, Martin; Lange, Guttorm; Frank, Kevin; Høy, Erik; Alfredsen, Jo Arve; Dempster, Timothy David. (2014) Telefish: Acoustic telemetry based monitoring of aquaculture fish farms. Aquaculture Europe 2014 . European Aquaculture Society; San Sebastian. 2014-10-14 - 2014-10-17.
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Vitenskapelig foredragSkøien, Kristoffer Rist; Alfredsen, Jo Arve. (2014) Feeding of Large-Scale Fish Farms: Motion Characterization of a Pneumatic Rotor Feed Spreader. OCEANS'14 MTS/IEEE St. John's . MTS/IEEE; St. John's. 2014-09-14 - 2014-09-19.
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Populærvitenskapelig foredragSkøien, Kristoffer Rist; Alver, Morten; Aas, Turid Synnøve; Åsgård, Torbjørn Einar; Føre, Martin; Alfredsen, Jo Arve. (2014) Spredning og kontroll av fôr i merd. CREATE . SINTEF; 2014-11-12 - 2014-11-12.
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PosterSkøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. Department of Engineering Cybernetics - 60 year jubilee . NTNU - ITK; Trondheim. 2014-11-07 - 2014-11-07.
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PosterSkøien, Kristoffer Rist; Alver, Morten; Alfredsen, Jo Arve. (2014) A Computer Vision Approach for Detection and Quantification of Feed Particles in Marine Fish Farms. IEEE International Conference on Image Processing . IEEE Signal Processing Society; Paris. 2014-10-27 - 2014-10-30.
2013
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Populærvitenskapelig foredragSkøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar; Alfredsen, Jo Arve. (2013) Modellbasert pelletplassering i stormerd - neste skritt?. TEKMAR . SINTEF Fisheries and Aquaculture; Trondheim. 2013-12-03 - 2013-12-04.
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Vitenskapelig foredragSkøien, Kristoffer Rist; Alver, Morten; Føre, Martin; Solvang-Garten, Torfinn; Aas, Turid Synnøve; Åsgård, Torbjørn Einar; Alfredsen, Jo Arve. (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.
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Vitenskapelig foredragAlfredsen, Jo Arve; Alver, Morten; Eriksen, Tor-Inge. (2013) ARCHITECTURE FOR AUTOMATION AND TELEPRESENCE IN A MARINE HATCHERY LABORATORY. 6th fish & shellfish larviculture symposium, Larvi 2013, belgium 2-5 september 2013 . Ghent university; Ghent. 2013-09-02 - 2013-09-05.
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Faglig foredragEspmark, Åsa Maria Olofsdotter; Kolarevic, Jelena; Åsgård, Torbjørn Einar; Willumsen, Finn Viktor; Lange, Guttorm; Alfredsen, Jo Arve; Alver, Morten; Terjesen, Bendik Fyhn. (2013) Tank size in experimental design matters. European Aquaculture Society’s Annual Conference, EAS 2013 ; Trondheim. 2013-08-12.
2012
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PosterMarafioti, 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.
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PosterMarafioti, 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.
2011
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Vitenskapelig foredragAlfredsen, 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. 1.st international conference on fish telemetry . Hokkaido University; Sapporo. 2011-06-14 - 2011-06-18.
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Vitenskapelig foredragKristensen, 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. 1st International Conference on Fish Telemetry . Hokkaido University; Sapporo. 2011-06-12 - 2011-06-18.
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PosterUrke, H A.; Alfredsen, Knut; Kristensen, Torstein; Gjørwad hagen, A; Kvakland, M; Grønningsæter, Åge; Alfredsen, Jo Arve. (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. 1st international conference on fish telemetry . Hokkaido University; Sapporo. 2011-06-13 - 2011-06-18.
2010
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Vitenskapelig foredragAlfredsen, Jo Arve. (2010) Utvikling av nye måleprinsipper basert på akustisk telemetri for overvåkning av oppdrettslaks. Programkonferansen HAVBRUK 2010 . Norwegian research council; Trondheim. 2010-04-19 - 2010-04-21.
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Vitenskapelig foredragAlver, Morten; Alfredsen, Jo Arve; Storøy, Werner; Li, Keshuai; Bardal, Tora; Overrein, Ingrid; Øie, Gunvor. (2010) Prosessovervåkning og styring i neste generasjons klekkeri. Programkonferansen HAVBRUK . Norges Forskningsråd; Trondheim. 2010-04-19 - 2010-04-21.
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Vitenskapelig foredragØie, Gunvor; Alver, Morten; Storøy, Werner; Bardal, Tora; Overrein, Ingrid; Alfredsen, Jo Arve; Olsen, Yngvar. (2010) Automation in Marine Larviculture With Use of Copepods (Acartia tonsa) as Live Food. Aquaculture Europe 2010 . European Aquaculture Society; Porto. 2010-10-05 - 2010-10-08.
2009
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Populærvitenskapelig foredragAlfredsen, Jo Arve. (2009) Havbruk og kybernetikk. Servomøtet 2009 . Norsk Forening for Automatisering; TRONDHEIM. 2009-10-20 - 2009-10-20.
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Vitenskapelig foredragAlver, Morten; Øie, Gunvor; Olsen, Yngvar; Alfredsen, Jo Arve. (2009) Process monitoring and control in the next generation hatchery. Larvi 2009 5th fish & shellfish larviculture symposium . Ghent University; Gent. 2009-09-07 - 2009-09-10.
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Vitenskapelig foredragFøre, Martin; Alfredsen, Jo Arve. (2009) A software tool for interpretation of fish telemetry data from fish farms. European Aquaculture Conference 2009 . European Aquaculture Society; TRONDHEIM. 2009-08-14 - 2009-08-17.
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Vitenskapelig foredragØie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Larvi 2009 – 5th fish & shellfish larviculture symposium . Ghent University; Ghent. 2009-09-07 - 2009-09-10.
2008
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Populærvitenskapelig foredragKjørsvik, Elin; Attramadal, Kari; Øie, Gunvor; Alfredsen, Jo Arve; Alver, Morten; Larssen, Harald; Overrein, Ingrid; Reitan, Kjell Inge; Vadstein, Olav. (2008) CODTECH En prosessorientert tilnærming til intensiv produksjon av marin fiskeyngel med hovedfokus på torsk. Faktaark for forskningsprogrammet "Havbruk - en næring i vekst" . Norges forskningsråd; 2008-10-28.
2007
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Vitenskapelig foredragAlver, Morten; Alfredsen, Jo Arve. (2007) Automatic control of rotifer Brachionus plicatilis cultures. Aquaculture Europe 2007 . European Aquaculture Society; Istanbul. 2007-10-25 - 2007-10-27.
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Vitenskapelig foredragFøre, Martin; Alfredsen, Jo Arve. (2007) Modelling and simulation of fish behaviour in sea-cages. Aquaculture Europe . European Aquaculture Society; Istanbul. 2007-10-24 - 2007-10-27.
2006
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PosterHøy, Erik; Alfredsen, Jo Arve; Alver, Morten; Øie, Gunvor; Olsen, Yngvar. (2006) Computer controlled appetite feeding of marine larvae. Aqua 2006 . World Aquaculture Society; Firenze. 2006-05-09 - 2006-05-12.
2005
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Vitenskapelig foredragAlfredsen, 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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Vitenskapelig foredragAlver, 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. Aquaculture Europe 2005 . European Aquaculture Society; Trondheim. 2005-08-09 - 2005-08-12.