Browsing NTNU Open by Author "Kvæstad, Bjarne"
Now showing items 1-11 of 11
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Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure
Hansen, Bjørn Henrik; Farkas, Julia; Piarulli, Stefania; Vicario, Silvia; Kvæstad, Bjarne; Williamson, David Roddan; Sørensen, Lisbet; Davies, Emlyn John; Nordtug, Trond (Peer reviewed; Journal article, 2021)3,4-dichloroaniline (3,4-DCA) is one of the most widely produced anilines world-wide, used in plastic packaging, fabrics, pharmaceuticals, pesticides, dyes and paints as well as being a degradation product of several ... -
Autonomous Drone with Object Pickup Capabilities
Kvæstad, Bjarne (Master thesis, 2016)The objective with this project was to create an autonomous drone with the capability to pick up, and deliver an object, without any human interference. This is an continuation of the work done during the pre-project. The ... -
Behavioural monitoring of salmon juveniles using stereo vision and machine learning
Nedreberg, Åshild (Master thesis, 2022)Bruken av landbaserte oppdrettsanlegg er økende i akvakulturnæringen. Foreløpig er det mangel på autonome løsninger for atferdsovervåkning av fisk i landbaserte anlegg. Dette er ettertraktet for å kunne avdekke dårlig ... -
Effects of gadolinium (Gd) and a Gd-based contrast agent (GBCA) on early life stages of zebrafish (Danio rerio)
Piarulli, Stefania; Riedel, Juliane Annemieke; Fossum, Frida Nonstad; Kermen, Florence; Hansen, Bjørn Henrik; Kvæstad, Bjarne; Olsvik, Pål Asgeir; Farkas, Julia (Peer reviewed; Journal article, 2023)Gadolinium (Gd) is one of the rare earth elements (REY) and is widely used in magnetic resonance imaging (MRI) contrast agents. Anthropogenic Gd enrichment has frequently been found in wastewater treatment plant effluents ... -
Effects of marine mine tailing exposure on the development, growth, and lipid accumulation in Calanus finmarchicus
Svendheim, Linn Hjelmeland; Jager, Tjalling; Olsvik, Pål Asgeir; Øverjordet, Ida Beathe; Ciesielski, Tomasz Maciej; Nordtug, Trond; Kristensen, Torstein; Hansen, Bjørn Henrik; Kvæstad, Bjarne; Altin, Dag; Farkas, Julia (Journal article; Peer reviewed, 2021)Marine tailing disposal (MTD) is sometimes practiced as an alternative to traditional mine tailing deposition on land. Environmental challenges connected to MTD include spreading of fine particulate matter in the water ... -
Exposure to low environmental copper concentrations does not affect survival and development in Atlantic cod (Gadus morhua) early life stages
Farkas, Julia; Svendheim, Linn Hjelmeland; Jager, Tjalling; Ciesielski, Tomasz Maciej; Nordtug, Trond; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Kristensen, Torstein; Altin, Dag; Olsvik, Pål Asgeir (Peer reviewed; Journal article, 2021)In this study we investigated potential impacts of Cu exposure at low, environmentally relevant, concentrations on early live stages of Atlantic cod (Gadus morhua). Cod embryos and larvae were exposed to 0.5 μg/L (low), ... -
A flow-through imaging system for automated measurement of ichthyoplankton
Williamson, David Roddan; Nordtug, Trond; Leirvik, Frode; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Ludvigsen, Martin; Davies, Emlyn John (Peer reviewed; Journal article, 2022)Microscopic imaging and morphometric measurement of fish embryos and larvae is essential in environmental monitoring of fish populations and to evaluate larvae development in aquaculture. Traditional microscopy methods ... -
Hydrogen Sulfide Detection through Salmon Juvenile Monitoring with Stereo Vision and Machine Learning
Eide, Lotte (Master thesis, 2023)Bakgrunn: Utvidelsen av landbaserte produksjonsfaser i lakseoppdrett er en voksende trend innen akvakulturindustrien. Reduksjon av tid tilbrakt på sjøen kan gi mange fordeler, men utviklingen av landbaserte fasiliteter ... -
Ova lipid profiling and egg quality in wild and captive lumpfish, Cyclopterus lumpus (Linnaeus, 1758)
Hansen, Bjørn Henrik; Kjørsvik, Elin; Malzahn, Arne; Sarno, Antonio; Kulild, Ole Martin; Farkas, Julia; Nordtug, Trond; Rye, Rebecca; Kvæstad, Bjarne; Lein, Ingrid; Hagemann, Andreas (Peer reviewed; Journal article, 2022)Lumpfish (Cyclopterus lumpus) serves an important role as cleaner fish for removing salmon lice in salmon aquaculture. For this use, cultivated lumpfish are preferred over wild-caught fish to avoid overexploitation of ... -
Toxicity and developmental effects of Arctic fuel oil types on early life stages of Atlantic cod (Gadus morhua)
Hansen, Bjørn Henrik; Nordtug, Trond; Farkas, Julia; Khan, Essa Ahsan; Oteri, Erika; Kvæstad, Bjarne; Faksness, Liv-Guri; Daling, Per Snorre; Arukwe, Augustine (Journal article; Peer reviewed, 2021)Due to the heavy fuel oil (HFO) ban in Arctic maritime transport and new legislations restricting the sulphur content of fuel oils, new fuel oil types are continuously developed. However, the potential impacts of these new ... -
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 ...