Browsing Bergen Open Research Archive by Author "Isaksen, Trond Einar"
Now showing items 1-7 of 7
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Acoustic telemetry predation sensors reveal the tribulations of Atlantic salmon (Salmo salar) smolts migrating through lakes
Hanssen, Erlend Mjelde; Vollset, Knut Wiik; Salvanes, Anne Gro Vea; Barlaup, Bjørn; Whoriskey, Kim; Isaksen, Trond Einar; Normann, Eirik Straume; Hulbak, Magnus Andre; Lennox, Robert (Journal article; Peer reviewed, 2021)Smolt migration through lakes is hazardous, as the predation pressure can be extreme and the hydrology a great contrast to that of a riverine area. However, the mechanisms yielding these challenges have been scarcely ... -
Bubbling trouble: Effects of supersaturated water on benthic macroinvertebrates
Velle, Gaute; Isaksen, Trond Einar; Lennox, Robert; Pulg, Ulrich (Journal article; Peer reviewed, 2024)The saturation of total dissolved gases (TDG) in water remains around 100%. Certain circumstances can lead to TDG values exceeding 100%, resulting in TDG supersaturation (TDGS). TDGS above about 110% can be toxic to animals ... -
Ichthyobodo hippoglossin. sp. (Kinetoplastea: Prokinetoplastida: Ichthyobodonidae fam. nov.), an ectoparasitic flagellate infecting farmed Atlantic halibut Hippoglossus hippoglossus
Isaksen, Trond Einar; Karlsbakk, Egil; Nylund, Are (Peer reviewed; Journal article, 2007-01-18)Diseased Atlantic halibut Hippoglossus hippoglossus juveniles from a hatchery in western Norway showed gill and skin infections with an Ichthyobodo species. Genus Ichthyobodo contains a single valid species, I. necator, ... -
Ichthyobodo infections on farmed and wild fish. Methods for detection and identification of Ichthyobodo spp.
Isaksen, Trond Einar (Doctoral thesis, 2013-03-01)Ichthyobodosis is an important parasitic disease that has caused severe loss among ornamental and farmed fish world wide for more than a century. The disease is caused by heavy infections on skin and gills by parasitic ... -
Molecular tools for the detection and identification of Ichthyobodo spp. (Kinetoplastida), important fish parasites
Isaksen, Trond Einar; Karlsbakk, Egil; Repstad, Oddvar; Nylund, Are (Peer reviewed; Journal article, 2012-12)Ichthyobodo spp. are ectoparasitic flagellates of fish that may cause disease (ichthyobodosis), a common problem affecting the aquaculture industry worldwide. Ichthyobodosis in farmed fish is often associated with a range ... -
Net cleaning impacts Atlantic salmon gill health through microbiome dysbiosis
Elsheshtawy, Ahmed; Clokie, Benjamin Gregory James; Albalat, Amaya; Nylund, Are; Isaksen, Trond Einar; Indrebø, Elisabeth Napsøy; Andersen, Linda; Moore, Lindsey; Mackenzie, Simon (Journal article, 2023)Net biofouling has a significant impact for the global salmon industry in the seawater grow-out stage in terms of its management. Current mitigation strategies occur primarily through the regular removal of biofouling using ... -
Protozan ectosymbionts on Atlantic salmon (Salmo salar L.) in a Hatchery in Hordaland, Western Norway: Morphology and Epizootiology
Isaksen, Trond Einar (Master thesis, 2003)Protozoan ectosymbionts are commonly found on salmonids in Norwegian lakes and rivers. Salmon in hatcheries supplied with water from such watercourses are often infected with such organisms. Despite extensive salmon ...