Browsing Brage IMR by Title
Now showing items 8490-8509 of 11544
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Safety standards and quality assurance in research programs
(ICES CM Documents;2002/J:7, Working paper, 2002)Research vessels (RVs) are complex and costly platforms for data collection and data handling in marine science. The RVs must be built, maintained, manned and operated in accordance with laws and regulations developed by ... -
Saithe tagging experiments in northern Norway north of 68°N, 1970 - 74.
(ICES CM Documents;1978/G:34, Working paper, 1978)From 1970 to 1974, 7913 saithe were tagged and released along the coast of northern Norway from north of 68 N and eastwards nearly to the border between Norway and the USSR. -
Saithe tagging experiments on the Norwegian coast between 62°N AND 67°N, 1971 - 74.
(ICES CM Documents;1978/G:33, Working paper, 1978)From 1971 to 1974, 5222 saithe were tagged and released on the Norwegian coast between 62°N and 67°N. Previously, Sund (1925) had tagged 1000 saithe in summer 1921 at about 67°N. Both northward and southward migration was ... -
Saithe tagging experiments on the Norwegian west coast south of 62°N, 1972 - 74.
(ICES CM Documents;1978/G:32, Working paper, 1978)From 1972 to 1974, 6291 saithe were tagged and released on the Norwegian west coast between 59 N and 62 N. Before 1972, only 40 saithe have been tagged in the area, in 1956 and 1959, and these experiments were not extensive ... -
Salinity and temperature alter the efficacy of salmon louse prevention
(Peer reviewed; Journal article, 2023)Several promising preventive tools and strategies have been developed to combat infestation of salmon in marine cages by parasitic salmon lice. While most of the prevention strategies tested have significantly reduced louse ... -
Salmon in combination with high glycemic index carbohydrates increases diet-induced thermogenesis compared with salmon with low glycemic index carbohydrates?an acute randomized cross-over meal test study
(Journal article; Peer reviewed, 2019)The study investigated the acute effects of meals containing either salmon or veal in combination with carbohydrates with high or low glycemic index (GI) on diet-induced thermogenesis (DIT) (primary endpoint), appetite ... -
Salmon lice (Lepeophtheirus salmonis) development times, body size and reproductive outputs follow universal models of temperature dependence
(Journal article; Peer reviewed, 2016-05-25)Temperatures regulate metabolism of marine ectotherms and thereby influence development, reproduction, and, as a consequence, dispersal. Despite the importance of water temperatures in the epidemiology of marine diseases, ... -
Salmon lice dispersal and population model for management strategy evaluation
(Peer reviewed; Journal article, 2023)Modern marine salmon aquaculture includes management of salmon lice (Lepeophtheirus salmonis) infestations. Moving from a reactive delousing treatment effort to a proactive preventive strategy requires a simulation tool ... -
Salmon lice dispersion in a northern Norwegian fjord system and the impact of vertical movements
(Journal article; Peer reviewed, 2016-02-02)The abundance and distribution of salmon lice Lepeophtheirus salmons originating from fish farms in a northern Norwegian fjord during the summer of 2010 was investigated by means of a numerical model, underpinned by field ... -
Salmon lice evasion, susceptibility, retention, and development differ amongst host salmonid species.
(Peer reviewed; Journal article, 2017)With different ecological characteristics amongst salmonid species, their response to parasitic infestation is likely to vary according to their spatial and temporal overlap with the parasite. This study investigated the ... -
Salmon lice in the Pacific Ocean show evidence of evolved resistance to parasiticide treatment
(Peer reviewed; Journal article, 2022)Parasitic salmon lice (Lepeophtheirus salmonis) threaten the economic and ecological sustainability of salmon farming, and their evolved resistance to treatment with emamectin benzoate (EMB) has been a major problem for ... -
Salmon lice infection on wild salmonids in marine protected areas: an evaluation of the Norwegian ‘National Salmon Fjords
(Journal article; Peer reviewed, 2014-02-05)In Norway, 29 fjords and 52 rivers have been designated for protection in order to prevent the infection of important populations of wild salmonids with salmon lice of farm origin. We evaluated the effect of this protection ... -
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 ...