I dag er fiskeriene på verdensbasis overfisket, torskekvotene er synkende og med et stadig økende matbehov må økningen i matproduksjon komme fra oppdrett. Torskeoppdretterne setter ut stadig mer yngel og har ambisjoner om å utvide videre. En av hovedutfordringene er kjønnsmodning i merd. Lysstyring for å forsinke kjønnsmodning vil være essensielt for en bærekraftig vekst for næringen. Atlanterhavstorsk ...

Produksjon av laks i Norge vokser for hvert år, og er en sentral del av nasjonal og internasjonal matproduksjon. Økt produksjon fører til utfordringer knyttet til fiskevelferd, parasitter og høy dødelighet. Det blir derfor stilt strenge krav fra staten til oppdrettsnæringen. Oppdrettsnæringen søker etter løsninger for å imøtekomme statlige krav, men også for å sikre en sikker og effektiv drift lokalt. ...

I denne studien ble tre grupper Atlantisk laks (Salmo salar) fôret opp med 3 forskjellige fôrsammensetninger bestående av forskjellige nivåer tilsetting av kiselalgen Porosira glacialis. Fôrgruppe A0 med 0% tilsetting, fôrgruppe A1 med 1% tilsetting og fôrgruppe A3 med 3% tilsetting, ble alle utsatt for lik behandling og prosedyre og utsatt for smitteforsøk med lakselus (Lepeophtheirus salmonis). ...

Increased knowledge about marine mammal seasonal distribution and species assemblage from the South Orkney Islands waters is needed for the development of management regulations of the commercial fishery for Antarctic krill (Euphausia superba) in this region. Passive acoustic monitoring (PAM) data were collected during the autumn and winter seasons in two consecutive years (2016, 2017), which ...

Camera traps are a powerful, practical, and non-invasive method used widely to monitor animal communities and evaluate management actions. However, camera trap arrays can generate thousands to millions of images that require significant time and effort to review. Computer vision has emerged as a tool to accelerate this image review process. We propose a multi-step, semi-automated workflow which ...

As antibiotic resistance is on the rise in parallel with the stagnation of antibiotic discovery, the world urges for novel antibacterial strategies. Phage therapy has a century-long history of application in former Soviet countries in eastern Europe and has gained attention as a potential alternative to conventional antibiotics, with high specificity and low cytotoxicity. This study aimed at isolating ...

This study explores the topics and trends of teaching AI ethics in higher education, using Latent Dirichlet Allocation as the analysis tool. The analyses included 166 courses from 105 universities around the world. Building on the uncovered patterns, we distil a model of current pedagogical practice, the BAG model (Build, Assess, and Govern), that combines cognitive levels, course content, and ...

Emotion and cognition are at the core of human behaviour and modelling human behaviour is at the core of social simulation. Using a bibliometric analysis of publications connecting agent-based modelling with cognition (sense), emotion (sensibility), or both, this study describes the evolution of the field, explores trends, and identifies existing gaps, and proposes potential future developments. Our ...

Agent-based models of human behaviors in emergencies are extremely important in prevention, preparedness, response and mitigation of crises. However, there is huge variation in the modeling of human cognitions and actions, with varying degrees of realism and even more diverse definitions of how realism should be implemented in the models. The aim of this Rapid Literature Review is to identify existing ...

In the Arctic tundra, predators face recurrent periods of food scarcity and often turn to ungulate carcasses as an alternative food source. As important and localized resource patches, carrion promotes co-occurrence of different individuals, and its use by predators is likely to be affected by interspecific competition. We studied how interspecific competition and resource availability impact ...