Blar i Bergen Open Research Archive på forfatter "Nilsen, Hanne Katrine"
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Microbial colonization and community stability in a marine post-smolt RAS inoculated with a commercial starter culture
Drønen, Asbjørg Karine; Roalkvam, Irene; Dahle, Håkon; Nilsen, Hanne Katrine; Olsen, Anne Berit; Wergeland, Heidrun Inger (Journal article; Peer reviewed, 2021)The performance of a commercial starter culture was investigated in a new marine post-smolt RAS, analyzing the microbial communities of 100 samples collected monthly over a year from biofilter biofilm carriers, tank wall ... -
Microbiome dataset from a marine recirculating aquaculture system (RAS) for salmon post-smolt production in Norway
Drønen, Karine; Roalkvam, I.; Dahle, Hakon; Olsen, Anne Berit; Nilsen, Hanne Katrine; Wergeland, Heidrun Inger (Journal article; Peer reviewed, 2022)A marine aquaculture recycling system (RAS) for the production of post-smolt was monitored for microbial community structures during the first year of operation. Sample material was obtained monthly from the biofilter ... -
MLVA genotyping of Moritella viscosa reveals serial emergence of novel, host-specific clonal complexes in Norwegian salmon farming
Sørgaard, Martin; Sveinsson, Karoline Overn; Patel, Sonal; Nilsen, Hanne Katrine; Olsen, Anne Berit; Vaagnes, Øyvind; Colquhoun, Duncan John; Gulla, Snorre (Journal article; Peer reviewed, 2023)A Multi-Locus Variable number of tandem repeat Analysis (MLVA) genotyping scheme was developed for the epidemiological study of Moritella viscosa, which causes ‘winter ulcer’ predominantly in sea-reared Atlantic salmon ... -
Multilocus sequence analysis reveals different lineages of Pseudomonas anguilliseptica associated with disease in farmed lumpfish (Cyclopterus lumpus L.)
Mjølnerød, Even Bysveen; Nilsen, Hanne Katrine; Gulla, Snorre; Riborg, Andreas Ekroll; Bottolfsen, Kirsten; Wiklund, Tom; Christiansen, Debes; Romalde López, Jesús Ángel; Scholz, Felix; Colquhoun, Duncan John (Journal article; Peer reviewed, 2021)The bacterium Pseudomonas anguilliseptica has in recent years emerged as a serious threat to production of lumpfish in Norway. Little is known about the population structure of this bacterium despite its association with ... -
Phylogeography and host specificity of Pasteurellaceae pathogenic to sea-farmed fish in the north-east Atlantic
Gulla, Snorre; Colquhoun, Duncan John; Olsen, Anne Berit; Spilsberg, Bjørn; Lagesen, Karin; Åkesson, Caroline Piercey; Strøm, Sverri; Manji, Farah; Birkbeck, T.H.; Nilsen, Hanne Katrine (Journal article; Peer reviewed, 2023)The present study was undertaken to address the recent spate of pasteurellosis outbreaks among sea-farmed Atlantic salmon (Salmo salar) in Norway and Scotland, coinciding with sporadic disease episodes in lumpfish (Cyclopterus ... -
Presence and habitats of bacterial fish pathogen relatives in a marine salmon post-smolt RAS
Drønen, Asbjørg Karine; Roalkvam, Irene; Nilsen, Hanne Katrine; Olsen, Anne Berit; Dahle, Håkon; Wergeland, Heidrun Inger (Journal article; Peer reviewed, 2022)Recycling aquaculture system (RAS) requires well-functioning microbial communities to support fish welfare and to minimize the risk of spreading diseases. In this study of a marine post-smolt RAS we searched for groups of ... -
Tenacibaculosis in Norwegian Atlantic salmon (Salmo salar) cage-farmed in cold sea water is primarily associated with Tenacibaculum finnmarkense genomovar finnmarkense
Spilsberg, Bjørn; Nilsen, Hanne Katrine; Tavornpanich, Saraya; Gulla, Snorre; Lagesen, Karin; Jansen, Mona Dverdal; Colquhoun, Duncan John; Olsen, Anne Berit (Journal article; Peer reviewed, 2022)Skin conditions associated with Tenacibaculum spp. constitute a significant threat to the health and welfare of sea-farmed Atlantic salmon (Salmo salar L.) in Norway. Fifteen presumptive tenacibaculosis outbreaks distributed ...