Browsing NINA Brage by Author "Viljugrein, Hildegunn"
Now showing items 1-9 of 9
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A method that accounts for differential detectability in mixed samples of long-term infections with applications to the case of Chronic Wasting Disease in cervids
Viljugrein, Hildegunn; Hopp, Petter; Benestad, Sylvie Lafond; Nilsen, Erlend Birkeland; Våge, Jørn; Tavornpanich, Saraya; Rolandsen, Christer Moe; Strand, Olav; Mysterud, Atle (Journal article; Peer reviewed, 2018)1. Surveillance of wildlife diseases is logistically difficult, and imperfect detection is a recurrent challenge for disease estimation. Using citizen science can increase sample sizes, but it is associated with a cost in ... -
A stage-structured Bayesian hierarchical model for salmon lice populations at individual salmon farms – Estimated from multiple farm data sets
Aldrin, Magne Tommy; Huseby, Ragnar Bang; Stien, Audun; Grøntvedt, Randi Nygaard; Viljugrein, Hildegunn; Jansen, Peder A (Journal article; Peer reviewed, 2017)Salmon farming has become a prosperous international industry over the last decades. Along with growth in the production farmed salmon, however, an increasing threat by pathogens has emerged. Of special concern is the ... -
Kartlegging av skrantesjuke (Chronic Wasting Disease - CWD) i 2016 og 2017
Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Mysterud, Atle; Viljugrein, Hildegunn; Solberg, Erling J.; Strand, Olav; Ytrehus, Bjørnar; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Næss, Camilla; Haavardstun, Tom; Veiberg, Vebjørn; Heim, Morten; Rudningen, Kåre (NINA Rapport;1522, Research report, 2018)Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Mysterud, A., Viljugrein, H., Solberg, E.J., Ytrehus, B., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Næss, C., Haavardstun, T., Veiberg, V., Heim, M., Rudningen, ... -
Kartlegging og overvåking av skrantesjuke (Chronic Wasting Disease - CWD) 2016-2019
Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljugrein, Hildegunn; Solberg, Erling J.; Ytrehus, Bjørnar; Andersen, Roy; Strand, Olav; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Fremstad, Jørn; Veiberg, Vebjørn; Heim, Morten; Holmstrøm, Frode; Mysterud, Atle (NINA Rapport;1818, Research report, 2020)Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Viljugrein, H., Solberg, E.J., Ytrehus, B., Andersen, R., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Fremstad, J., Veiberg, V., Heim, M., Holmstrøm, F., Mysterud, ... -
Kartlegging og overvåking av skrantesjuke (Chronic Wasting Disease - CWD) 2020
Rolandsen, Christer Moe; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljugrein, Hildegunn; Solberg, Erling J.; Andersen, Roy; Strand, Olav; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Fremstad, Jørn; Veiberg, Vebjørn; Heim, Morten; Holmstrøm, Frode; Mysterud, Atle (NINA Rapport;1983, Research report, 2021)Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Viljugrein, H., Solberg, E.J., Andersen, R., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Fremstad, J., Veiberg, V., Heim, M., Holmstrøm, F., Mysterud, A. 2021. ... -
Kartlegging og overvåking av skrantesjuke (chronic wasting disease - CWD) 2021
Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljugrein, Hildegunn; Solberg, Erling; Nilsen, Erlend B.; Andersen, Roy; Strand, Olav; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Veiberg, Vebjørn; Heim, Morten; Holmstrøm, Frode; Mysterud, Atle (NINA Rapport;2158, Research report, 2022)Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Viljugrein, H., Solberg, E.J., Nilsen, E.B, Andersen, R., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Fremstad, J., Veiberg, V., Heim, M., Holmstrøm, F., Mysterud, ... -
Kartlegging og overvåking av skrantesjuke (chronic wasting disease - CWD) 2022
Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljugrein, Hildegunn; Solberg, Erling J.; Andersen, Roy; Strand, Olav; Madslien, Knut; Tarpai, Attila; Veiberg, Veibjørn; Heim, Morten; Holmstrøm, Frode; Mysterud, Atle (NINA Rapport;2277, Research report, 2023)Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Viljugrein, H., Solberg, E.J., Andersen, R., Strand, O., Madslien, K., Tarpai, A., Fremstad, J., Veiberg, V., Heim, M., Holmstrøm, F., Mysterud, A. 2023. Kartlegging og ... -
Large scale modelling of salmon lice (Lepeophtheirus salmonis)infection pressure based on lice monitoring data from Norwegian salmonid farms
Kristoffersen, Anja Bråthen; Jimenez, Daniel Delgado; Viljugrein, Hildegunn; Grøntvedt, Randi; Stien, Audun; Jansen, Peder A (Peer reviewed; Journal article, 2014)Infection by parasitic sea lice is a substantial problem in industrial scale salmon farming. To controlthe problem, Norwegian salmonid farms are not permitted to exceed a threshold level of infection ontheir fish, and farms ... -
Phenology of deer ked (Lipoptena cervi) host-seeking flight activity and its relationship with prevailing autumn weather
Mysterud, Atle; Madslien, Knut; Herland, Anders; Viljugrein, Hildegunn; Ytrehus, Bjørnar (Peer reviewed; Journal article, 2016)Background: The deer ked (Lipoptena cervi) is an ectoparasite on cervids that has invaded large parts of Norway, Sweden and Finland during recent decades. During their host-seeking flight activity, the adult deer keds ...