Blar i NTNU Open på forfatter "Bloecher, Nina"
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Adaptive motion planning and path following for permanent resident biofouling prevention robot operating in fish farms
Føre, Martin; Fjæra, Sverre; Ohrem, Sveinung Johan; Kelasidi, Eleni; Bloecher, Nina; Amundsen, Herman Biørn (Journal article, 2022)This paper presents a study where the potential of achieving autonomous net cleaning operations in commercial net pens is demonstrated through numerical simulations. Specifically, we investigated solutions for coping with ... -
An investigation of biofouling and its management in Norwegian salmon aquaculture, and the potential effects on cleaner fish behaviour
Bouwman, Mai-Louise K. (Master thesis, 2020)Det høyfrekvente notvaskregimet i norsk lakseoppdrett, som er sterkt drevet av å sikre avlusningseffekten og appettitten for lus hos rensefisk, har store negative konsekvenser for merdmiljøet, fiskehelse \& velferd og ... -
Biofouling on salmon pen nets and cleaner fish shelters does not harbor planktonic stages of sea lice
Jevne, Lone Sunniva; Øvrelid, Margrete Slåtsve; Hagemann, Andreas; Bloecher, Nina; Steinhovden, Kristine; Båtnes, Anna Solvang; Olsen, Yngvar; Reitan, Kjell Inge (Peer reviewed; Journal article, 2020)The objective of the current study was to determine the extent to which planktonic sea lice (Lepeophtheirus salmonis Krøyer, 1838 and Caligus elongatus Nordmann, 1832) were present in the biofouling on open-sea net pens ... -
Data for characterization of the optical properties of Atlantic salmon (Salmo salar) blood
Svendsen, Eirik; Randeberg, Lise Lyngsnes; Føre, Martin; Finstad, Bengt; Olsen, Rolf-Erik; Bloecher, Nina; Alfredsen, Jo Arve (Peer reviewed; Journal article, 2023)Photoplethysmography is a recent addition to physio-logging in Atlantic salmon which can be used for pulse oximetry provided that the properties for light propagation in salmon tissues are known. In this work, optical ... -
Detection of a stress related acoustic signature by passive acoustic monitoring in Atlantic salmon farming
Jónsdóttir, Kristbjörg Edda; Mathiassen, John Reidar Bartle; Svendsen, Eirik Starheim; Rosten, Carolyn; Bloecher, Nina; Føre, Martin; Olsen, Rolf Erik; Finstad, Bengt; Volent, Zsolt (Peer reviewed; Journal article, 2024)Crowding is a necessary operation for moving fish out of or between sea cages in Atlantic salmon farming. These operations consist of gradually reducing available volume in the nets to increase the biomass density. This ... -
ECG augmented pulse oximetry in Atlantic salmon (Salmo salar)—A pilot study
Svendsen, Eirik; Føre, Martin; Randeberg, Lise Lyngsnes; Olsen, Rolf-Erik; Finstad, Bengt; Remen, Mette; Bloecher, Nina; Alfredsen, Jo Arve (Peer reviewed; Journal article, 2023)Understanding the tolerance limits of fish is crucial for developing aquaculture operations that ensure good animal welfare. However, there exist little data describing the physiological responses in farmed Atlantic salmon, ... -
Farmed Atlantic salmon (Salmo salar L.) avoid intrusive objects in cages: The influence of object shape, size and colour, and fish length
Zhang, Qin; Bloecher, Nina; Evjemo, Linn Danielsen; Føre, Martin; Su, Biao; Eilertsen, Espen; Mulelid, Mats Aarsland; Kelasidi, Eleni (Peer reviewed; Journal article, 2024)Underwater vehicles and other mobile platforms are seeing increased use as tools within fish farming, particularly due to current trends towards Precision Farming practices, and more exposed farming sites. Although many ... -
Identification of spectral signature for in situ real-time monitoring of smoltification
Svendsen, Eirik; Volent, Zsolt; Schellewald, Christian; Tsarau, Andrei; Bjorgan, Asgeir; Venås, Birger; Bloecher, Nina; Bondø, Morten Steen; Føre, Martin; Jónsdóttir, Kristbjörg Edda; Stefansson, Sigurd Olav (Peer reviewed; Journal article, 2021)We describe the use of an optical hyperspectral sensing technique to identify the smoltification status of Atlantic salmon (Salmo salar) based on spectral signatures, thus potentially providing smolt producers with an ... -
Under the sea: How can we use heart rate and accelerometers to remotely assess fish welfare in salmon aquaculture?
Morgenroth, Daniel; Kvæstad, Bjarne; Økland, Finn; Finstad, Bengt; Olsen, Rolf-Erik; Svendsen, Eirik; Rosten, Carolyn; Axelsson, Michael; Bloecher, Nina; Føre, Martin; Gräns, Albin (Peer reviewed; Journal article, 2023)Recent advances in bio-sensing technologies open for new possibilities to monitor and safeguard the welfare of fishes in aquaculture. Yet before taken into practice, the applicability of all novel biosensors must be ... -
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar)
Føre, Martin; Svendsen, Eirik; Alfredsen, Jo Arve; Uglem, Ingebrigt; Bloecher, Nina; Sveier, Harald; Sunde, Leif Magne; Frank, Kevin (Journal article; Peer reviewed, 2018)The aim of this study was to demonstrate the feasibility of acoustic telemetry for monitoring fish during farm operations and gather knowledge about Atlantic salmon responses during crowding and delousing events in a ...