Blar i Brage IMR på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923"
Viser treff 301-320 av 753
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Patterns of Ichthyobodo necator sensu stricto infections on hatchery-reared Atlantic salmon Salmo salar in Norway
(Journal article; Peer reviewed, 2010-02-17)Infection patterns with ectoparasitic flagellates belonging to the genus Ichthyobodo were studied in an Atlantic salmon Salmo salar (L.) hatchery in western Norway during an 11 mo period, from eyed eggs to smoltification. ... -
Pelagic occurrence of Greenland halibut (Reinhardtius hippoglossoides) studied by means of vertical longlines
(ICES CM Documents;2004/K:69, Working paper, 2004)In order to calculate reliable survey indices it’s important to know the dynamics of vertical distribution of a fish species. The vertical distribution of Greenland halibut (Reinhardtius hippogolossoides) cannot be studied ... -
Phaeobacter gallaeciensis Reduces Vibrio anguillarum in Cultures of Microalgae and Rotifers, and Prevents Vibriosis in Cod Larvae
(Journal article; Peer reviewed, 2012-08-22)Phaeobacter gallaeciensis can antagonize fish-pathogenic bacteria in vitro, and the purpose of this study was to evaluate the organism as a probiont for marine fish larvae and their feed cultures. An in vivo mechanism of ... -
Pharmacokinetics of florfenicol in cod Gadus morhua and in vitro antibacterial activity against Vibrio anguillarum
(Journal article; Peer reviewed, 2003-09-24)The pharmacokinetic profile of the antibacterial agent florfenicol was studied in plasma after intravenous (i.v.) injection and in plasma, muscle and liver following oral (p.o.) administration to cod Gadus morhua, held ... -
Physical stress on halibut larvae
(ICES CM Documents;1986/F:18, Working paper, 1986)Halibut larvae were exposed to physical stress in the form of different levels of airation. Survival rate, development, dry weight, RNA, DNA and protein were measured. At the end of the experiment the larvae exposed to ... -
Picoeucaryot alga infecting blue mussel Mytilus edulis in southern Norway
(Journal article; Peer reviewed, 2005-01-25)During summer 2001, blue mussels Mytilus edulis with abnormal shell growth were collected near Kragerø, southern Norway. The mussels had green spots in their mantle tissues, mainly posteriorly and ventrally, and in the ... -
Pigmentation of salmonid - a comparison of astaxanthin and cantaxanthin as pigment sources for rainbow trout
(ICES CM Documents;1985/F:24, Working paper, 1985)Rainbow trout were fed a diet supplemented with astaxanthin and cantaxanthin. The ratios of astaxanthin to cantaxanthin were determined in plasma, faeces and flesh. During 65 days of feeding the flesh reached a level ... -
Pilot scale studies of intensive cod farming in Norway
(ICES CM Documents;1985/F:22, Working paper, 1985)Cod fry produced in a seawater pond at Austevoll, Norway were used in a farming experiment. Cod larvae were start fed on the natural plankton in the pond. Additional feeding with dry pellet started when the fry were 60 ... -
Population dynamics of salmon lice Lepeophtheirus salmonis on Atlantic salmon and sea trout
(Journal article; Peer reviewed, 2005-04-13)The salmon louse Lepeophtheirus salmonis is a common ectoparasite of both farmed and wild salmonids in the marine environment, and can have a significant negative effect on the survival and growth of its host. To facilitate ... -
Population genetic structure in a deepwater fish Coryphaenoides rupestris: patterns and processes
(Journal article; Peer reviewed, 2012-07-24)We observed significant genetic structure in a widely distributed North Atlantic demersal deepwater fish, the roundnose grenadier Coryphaenoides rupestris (Pisces: Macro - uridae). The overall estimate of genetic ... -
Population structure and historical demography of eastern North Atlantic harbour porpoises inferred through mtDNA sequences
(Journal article; Peer reviewed, 2006-12-07)The harbour porpoise Phocoena phocoena experiences high rates of incidental mortality in commercial fisheries, and in some areas these rates are sufficiently high to justify concern over population sustainability. Given ... -
Possible influence of salmon farming on long-term resident behaviour of wild saithe (Pollachius virens L.)
(Journal article; Peer reviewed, 2014-06-13)The culture of Atlantic salmon is one of the most developed aquaculture industries in the world. The production from smolt to market size usually takes place in sea cages in open waters, and these structures tend to attract ... -
Potential disease interaction reinforced: double-virusinfected escaped farmed Atlantic salmon, Salmo salar L., recaptured in a nearby river
(Journal article; Peer reviewed, 2014-01-27)The role of escaped farmed salmon in spreading infectious agents from aquaculture to wild salmonid populations is largely unknown. This is a case study of potential disease interaction between escaped farmed and wild fish ... -
Predation on the eggs of Norwegian spring-spawning herring at a spawning ground outside the westcoast of Norway in 1981
(ICES CM Documents;1985/H:55, Working paper, 1985)Predation on the eggs of demersal spawners has been reported several times, and findings of haddock feeding on capelin or herring eggs is a well known phenomenon. A spawning ground where spawning has been detected through ... -
Preliminary data on feeding and condition of Barents Sea harp seals (Phoca Groenlandica) throughout the year
(ICES CM Documents;1992/N:5, Working paper, 1992)In order to evaluate the ecological role of the most abundant seal species in the Barents Sea, the harp seal Phoca groenlandica, field studies have been carried out in September 1990, in February, March/April, June and ... -
Preliminary report from a comparative study of the diet of four gadoid fishes in a fjord of western Norway
(ICES CM Documents;1986/G:71, Working paper, 1986)As a contribution to a research program on sea ranching of cod in a fjord in western Norway, a dietary analysis of the main gadoid species has been conducted. The main aim of the analysis has been to identify potential ... -
Preliminary report of the Norwegian groundfish survey at Bear island and west-Spitsbergen in the autumn 1982
(ICES CM Documents;1983/G:34, Working paper, 1983) -
Preliminary report of the Norwegian groundfish survey at Bear Island and west-Spitsbergen in the autumn 1984
(ICES CM Documents;1985/G:65, Working paper, 1985)This report describes the results from a stratified bottom trawl survey carried out in September/October 1984. The cod stock component was dominated by the 1982 and the 1983- year classes. The former most abundante ... -
Preliminary results from stocking salmonid freshwater enclosures with flounder (Platichthys flesus)
(ICES CM Documents;1984/F:2, Working paper, 1984)Stocking of flounder in salmonid freshwater culture are suggested as a possible way of reducing loadings of surplus food to surrounding environment Flounder of different sizes were transferred from an estuary to Atlantic ... -
Preliminary results of Norwegian investigations on the greater silver smelt, Argentina silus (Ascanius)
(ICES CM Documents;1982/G:10, Working paper, 1982)