Blar i Brage på forfatter "Hansen, Haakon"
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A surveillance programme to document absence of Atlantic salmon (Salmo salar) and G. salaris in the River Drammenselva upstream of Hellefossen.
Hansen, Haakon; Amundsen, Marit Måsøy; Mohammad, Saima; Strand, David (Veterinærinstituttets rapportserie, Research report, 2022) -
Alien species in Norway: results from quantitative ecological impact assessments
Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ... -
Alien species in Norway: results from quantitative ecological impact assessments
Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Peer reviewed; Journal article, 2020)1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ... -
Catching the fish with the worm: A case study on eDNA detection of the monogenean parasite Gyrodactylus salaris and two of its hosts, Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss)
Rusch, Johannes; Hansen, Haakon; Strand, David; Markussen, Turhan; Hytterød, Sigurd; Vrålstad, Trude (Peer reviewed; Journal article, 2018) -
Determinants of parasite distribution in Arctic charr populations: catchment structure versus dispersal potential
Paterson, Rachel Anne; Knudsen, Rune; Blasco-Costa, Isabel; Dunn, Alison M; Hytterød, Sigurd; Hansen, Haakon (Peer reviewed; Journal article, 2018)Parasite distribution patterns in lotic catchments are driven by the combined influences of unidirectional water flow and the mobility of the most mobile host. However, the importance of such drivers in catchments dominated ... -
Diagnostikk av parasittsykdommer
Dale, Ole Bendik; Hansen, Haakon; Tørud, Brit; Erkinharju, Toni; Gjessing, Mona Cecilie (Journal article, 2022) -
Environmental DNA (eDNA) monitoring of two different freshwater host-pathogen complexes in the interface between nature and aquaculture
Rusch, Johannes; Vrålstad, Trude; Strand, David; Andersen, Tom; Hansen, Haakon (Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo., Doctoral thesis, 2021) -
First record of the asian fish tapeworm schyzocotyle (Bothriocephalus) acheilognathi (yamaguti, 1934) in scandinavia
Hansen, Haakon; Alarcon, Marta (Peer reviewed; Journal article, 2019) -
Forekomst av ulike parasitter hos rognkjeks i oppdrett.
Erkinharju, Toni; Wüstner, Stefanie Caroline; Furnesvik, Lisa; Hansen, Miroslava; Hansen, Anette; Hansen, Haakon (Others, 2019) -
Geographical distribution of Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae)
Paladini, Giuseppe; Shinn, Andrew P.; Taylor, Nicholas G. H.; Bron, James E.; Hansen, Haakon (Peer reviewed; Journal article, 2021) -
Gyrodactylus molweni sp. n. (Monogenea: Gyrodactylidae) from Chelon richardsonii (Smith, 1846) (Mugilidae) from Table Bay, South Africa
Christison, Kevin W.; Vaughan, David B.; Shinn, Andrew P.; Hansen, Haakon (Peer reviewed; Journal article, 2021) -
Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae) spreads further – a consequence of rainbow trout farming in Northern Russia
Hansen, Haakon; Ieshko, Evgeny; Rusch, Johannes; Samokhvalov, Igor; Melnik, Vera; Mugue, Nikolai; Sokolov, Sergey; Parshukov, Aleksey (Peer reviewed; Journal article, 2022) -
Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae) spreads further – the effect of rainbow trout farming in Northern Russia
Hansen, Haakon; Ieshko, Evgeny Pavlovich; Rusch, Johannes; Samokhvalov, Igor; Melnik, Vera; Mugue, Nikolay; Sokolov, Sergey G.; Parshukov, Alexey (Peer reviewed; Journal article, 2022) -
Gyrodactylus triglopsi n. sp. (Monogenea: Gyrodactylidae) from the Gills of Triglops nybelini Jensen, 1944 (Teleostei: Cottidae) in the Barents Sea
Hansen, Haakon; Alvestad, Anja Helene; MacKenzie, Ken; Darrud, Mari; Karlsbakk, Egil; Hemmingsen, Willy; Arneberg, Per (Peer reviewed; Journal article, 2020) -
Gyrodactylus triglopsi n. sp. (Monogenea: Gyrodactylidae) from the Gills of Triglops nybelini Jensen, 1944 (Teleostei: Cottidae) in the Barents Sea
Hansen, Haakon; Alvestad, Anja Helene; MacKenzie, Ken; Darrud, Mari; Karlsbakk, Egil; Hemmingsen, Willy; Arneberg, Per (Peer reviewed; Journal article, 2020) -
Infeksjoner med bendelormen Eubothrium sp. i oppdrettsanlegg i Norge: resistens, utbredelse og påvirkning på fiskehelsen
Hansen, Haakon; Karlsbakk, Egil Erlingsson; Hahn, Christoph; Qviller, Lars; Spilsberg, Bjørn; Sakariassen, Trine; Ruud, Kristian; Sevatdal, Sigmund (Veterinærinstituttets rapportserie, Research report, 2022) -
Infeksjoner med parasitten Nucleospora cyclopteri (Microsporidia) i rognkjeks, Cyclopterus lumpus
Hansen, Haakon; Thoen, Even; Alarcon, Marta; Devold, Magnus; Klingenberg, Oda; Nilsen, Kathrine; Warland, Benedicte R. E.; Markussen, Turhan Ali Dadasbilge; Faller, Randi; Mohammad, Saima; Seternes, Tore; Weli, Simon Chioma; Karlsbakk, Egil (Veterinærinstituttets rapportserie, Research report, 2019) -
Multi-agent in situ hybridization confirms Ca. Branchiomonas cysticola as a major contributor in complex gill disease in Atlantic salmon
Gjessing, Mona Cecilie; Spilsberg, Bjørn; Amundsen, Marit; Austbø, Lars; Hansen, Haakon; Colquhoun, Duncan John; Olsen, Anne Berit (Journal article, 2021) -
Occurrence and seasonality of Gyrodactylus salaris and G. salmonis (Monogenea) on Arctic char (Salvelinus alpinus (L.)) in the Fustvatnet lake, Northern Norway
Mo, Tor Atle; Hansen, Haakon; Hytterød, Sigurd (Peer reviewed; Journal article, 2023)Gyrodactylus spp. (Monogenea) were found on 16.9% (233 out of 1376) Arctic char, Salvelinus alpinus (L.), sampled from September 2010 to October 2011 in the Fustvatnet lake, Northern Norway. Two species were identified: ... -
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison
Heuch, Peter Andreas; Jansen, Peder Andreas; Hansen, Haakon; Sterud, Erik; MacKenzie, Ken; Haugen, Pål; Hemmingsen, Willy (Peer reviewed; Journal article, 2011)