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Salmon lice nauplii and copepodids display different vertical migration patterns in response to light
(Peer reviewed; Journal article, 2021)Light is a fundamental environmental cue which influences the migration of many marine organisms. For the salmon louse Lepeophtheirus salmonis, light is believed to drive the diel vertical migration behaviour of their ... -
Salmon lice sampled from wild Atlantic salmon and sea trout throughout Norway display high frequencies of the genotype Associated with pyrethroid resistance
(Journal article; Peer reviewed, 2019)Atlantic salmon Salmo salar aquaculture is based on the use of open-pen sea cages, with the consequence that farmed fish are both recipients and sources of pathogens from surrounding waters. Currently, the parasitic salmon ... -
Salmon lice survive the straight shooter: A commercial scale sea cage trial of laser delousing
(Peer reviewed; Journal article, 2020)Ectoparasitic salmon louse (Lepeophtheirus salmonis) infestations are costly for Atlantic salmon (Salmo salar) farmers in Norway. As a result, there is a strong desire for solutions to prevent and control infestations, and ... -
Salmon lice threaten growth, osmoregulation and survival in anadromous Arctic char post-smolts
(Peer reviewed; Journal article, 2019)High salmon lice (Lepeophtheirus salmonis) infestation levels resulting from intensive salmonid sea-cage aquaculture can threaten populations of wild salmonid hosts. This includes anadromous Arctic char (Salvelinus alpinus), ... -
Salmon lice treatments and salmon mortality in Norwegian aquaculture: a review
(Journal article; Peer reviewed, 2018)With the expansion of Atlantic salmon aquaculture, the economic and ecological impacts of salmon lice (Lepeophtheirus salmonis) has increased. Norway battles this problematic parasite with various control and preventative ... -
Salmon lice – impact on wild salmonids and salmon aquaculture
(Journal article; Peer reviewed, 2013-01-13)Salmon lice, Lepeophtheirus salmonis, are naturally occurring parasites of salmon in sea water. Intensive salmon farming provides better conditions for parasite growth and transmission compared with natural conditions, ... -
Salmon lice-induced mortality of Atlantic salmon during post-smolt migration in Norway
(Peer reviewed; Journal article, 2020) -
The salmon louse genome may be much larger than sequencing suggests.
(Peer reviewed; Journal article, 2022)The genome size of organisms impacts their evolution and biology and is often assumed to be characteristic of a species. Here we present the first published estimates of genome size of the ecologically and economically ... -
The salmon louse genome: Copepod features and parasitic adaptations
(Peer reviewed; Journal article, 2021)Copepods encompass numerous ecological roles including parasites, detrivores and phytoplankton grazers. Nonetheless, copepod genome assemblies remain scarce. Lepeophtheirus salmonis is an economically and ecologically ... -
Salmon louse infestation levels on sea trout can be predicted from a hydrodynamic lice dispersal model
(Peer reviewed; Journal article, 2021)The abundance of the parasitic salmon louse has increased with the growth in aquaculture of salmonids in open net pens. This represents a threat to wild salmonid populations as well as a key limiting factor for salmon ... -
Salmonid alphavirus infection causes skin dysbiosis in Atlantic salmon (Salmo salar L.) post-smolts
(Peer reviewed; Journal article, 2017) -
Sampling of Atlantic salmon using the Norwegian Quality cut (NQC) vs. Whole fillet; differences in contaminant and nutrient contents
(Peer reviewed; Journal article, 2023)Risk- benefit assessments of seafood require high-quality food composition data. In accordance with EU regulations, Atlantic salmon (Salmo salar) has conventionally been sampled using the Norwegian Quality Cut (NQC), a ... -
Sampling planktonic salmon lice in Norwegian fjords
(Journal article; Peer reviewed, 2019)Risk of mortality of wild salmon caused by salmon lice is used as an index for managing aquaculture production in Norway and is based on monitoring of lice attached to wild salmonids and modelled concentrations of lice ... -
Sampling protocol for the determination of nutrients and contaminants in fish and other seafood – The EAF-Nansen Programme
(Peer reviewed; Journal article, 2020)Seafood plays a central role in global food and nutrition security. However, there is a lack of data on the concentration of nutrients and contaminants in fish and other seafood, especially in low- and middle-income ... -
Sandbanks, sandwaves and megaripples on Spitsbergenbanken, Barents Sea
(Journal article; Peer reviewed, 2019)Recently acquired multibeam echosounder data from the shallowest part (26–53 m depth) of Spitsbergenbanken in the western Barents Sea reveal a variety of bedforms, including megaripples, sandwaves and sandbanks. The bedforms ... -
Sarcotretes scopeli, a lernaeid copepod new to Norway
(Journal article; Peer reviewed, 1971-09-10)Sarcotretes scopeli, parasitic on Benthosema glaciale, is recorded for the first time in Norway. 3.6% of the catch from the Bergen area and 1.9% from Sognefjorden was infested. The parasite seems to retard the growth and ... -
Scandinavium goeteborgense gen. nov., sp. nov., a New Member of the Family Enterobacteriaceae Isolated From a Wound Infection, Carries a Novel Quinolone Resistance Gene Variant
(Journal article; Peer reviewed, 2019)The family Enterobacteriaceae is a taxonomically diverse and widely distributed family containing many human commensal and pathogenic species that are known to carry transferable antibiotic resistance determinants. ... -
Schooling of the vertically migrating mesopelagic fish Maurolicus muelleri in light summer nights
(Journal article; Peer reviewed, 1998-09-03)Vertically migrating Maurolicus muelleri arrested their nocturnal ascent below the peak zooplankton concentrations during Light summer nights at 62 degrees N. At 69 degrees N, the behavior was further modified, with M, ... -
Screening and characterisation of potentially pathogenic bacteria associated with Atlantic cod Gadus morhua larvae: bath challenge trials using a multidish system
(Peer reviewed; Journal article, 2008-09-24)In intensive aquaculture systems, high concentrations of nutrients and high densities of fish larvae provide favorable conditions for opportunistic pathogenic bacteria to flourish. We screened potentially pathogenic ... -
Screening for Viral Hemorrhagic Septicemia Virus in Marine Fish along the Norwegian Coastal Line
(Journal article; Peer reviewed, 2014-09-23)Viral hemorrhagic septicemia virus (VHSV) infects a wide range of marine fish species. To study the occurrence of VHSV in wild marine fish populations in Norwegian coastal waters and fjord systems a total of 1927 fish from ...