Lepeophtheirus salmonis
Effectiveness of emamectin benzoate for treatment of Lepeophtheirus salmonis on farmed Atlantic salmon Salmo salar in the Bay of Fundy, Canada
... lice Lepeophtheirus salmonis on farmed Atlantic salmon Salmo salar in the Bay of Fundy, New Brunswick, Canada, since ...L. salmonis abundance after ...L. salmonis abundance were explored, and ...
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The use of prevalence as a measure of lice burden: a case study of Lepeophtheirus salmonis on Scottish Atlantic salmon, Salmo salar L., farms
... of Lepeophtheirus salmonis on farmed Atlantic salmon has been shown to vary both spatially and temporally depending on a range of factors including seasonality, site location and treatment intervention ...
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Use of a mathematical model to describe the epidemiology of Lepeophtheirus salmonis on farmed Atlantic salmon Salmo salar in the Hardangerfjord, Norway
... louse Lepeophtheirus salmonis from 44 salmon farms in the Hardangerfjord on the south-west coast of Norway over the period 2004 to 2007 were assimilated to create 20-month production cycle profiles for ...
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Desmozoon lepeophtherii n gen , n sp , (Microsporidia: Enterocytozoonidae) infecting the salmon louse Lepeophtheirus salmonis (Copepoda: Caligidae)
... copepod Lepeophtheirus salmonis parasitic on farmed Atlantic salmon, Salmo salar [21,23], and Unikaryon mytilicolae (Durfort, Vallmitjana & Vivares, 1980) has been found infecting the cyclopoid copepod ...
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A fixed-dose approach to conducting emamectin benzoate tolerance assessments on field-collected sea lice, Lepeophtheirus salmonis
... lice, Lepeophtheirus salmonis on Atlantic salmon, Salmo salar, and has been used extensively in New Brunswick since the late 1990s initially through the Emergency Drug Release programme of Health Canada’s ...
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Multivariate evaluation of the effectiveness of treatment efficacy of cypermethrin against sea lice (Lepeophtheirus salmonis) in Atlantic salmon (Salmo salar)
... louse Lepeophtheirus salmonis is the most important ectoparasite of farmed Atlantic salmon (Salmo salar) in Norwegian ...of Lepeophtheirus salmonis ...
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National survey of sea lice (Lepeophtheirus salmonis Kroyer and Caligus elongatus Nordmann) on fish farms in Ireland 2006
... Sea lice are an ectoparasite which occur on many fish worldwide and are regarded as having the most commercially damaging effect on cultured salmon in the world, with major economic losses to the fish farming community ...
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Evaluation of water salinity effects on the sea lice Lepeophtheirus salmonis found on farmed Atlantic salmon in Muchalat Inlet, British Columbia, Canada
... L. salmonis stages, which found that survival and development of planktonic lice stages, as well as settlement rates of copepodids on the host, depend heavily on optimal salinity levels ...
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The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L) in Scotland, 2002-2006
... collected by a dedicated group of individuals working to a standard clinical efficacy protocol [20,33]. While laboratory based studies were essential in establishing the efficacy of emamectin benzoate, they may not ...
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Factors associated with changing efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonison Scottish salmon farms
... i.e. Lepeophtheirus salmonis (Krøyer, 1837) and Caligus elongatus (Nordmann, 1832), reliance on such a limited range of therapeutants has raised concerns that resistance in lice will become an increasing ...
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Genome wide survey of cytochrome P450 genes in the salmon louse Lepeophtheirus salmonis (Krøyer, 1837)
... Compared to the number of CYP genes in free-living crustaceans, e.g. 75 in the phyllopod D. pulex [51] and 52 and 46 in the non-parasitic copepods T. japonicus and P. nana [49, 50], respectively, the L. salmonis ...
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Characterization of “Candidatus Piscichlamydia salmonis” (Order Chlamydiales), a Chlamydia Like Bacterium Associated With Epitheliocystis in Farmed Atlantic Salmon (Salmo salar)
... Piscichlamydia salmonis” in proliferative gill lesion from year 2000 Norwegian farmed Atlantic salmon, with intracellular inclusions (arrows) at tips of lamellae accompanied by interlamellar filling by ...
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An evaluation of potential reference genes for stability of expression in two salmonid cell lines after infection with either Piscirickettsia salmonis or IPNV
... P. salmonis and IPNV have been evidenced by increasing cytopathic effect, as well as by accumulation of bacterial DNA and viral RNA over time in both CHSE-214 and RTS11 cell cultures (Figures 1 and ...
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Multivariate evaluation of the effectiveness of delousing treatment efficacy of azamethiphos (Salmosan®) against the salmon louse (Lepeophtheirus salmonis) in Atlantic salmon (Salmo salar) using wellboat, skirt and tarpaulin treatment modalities
... (Lepeophtheirus salmonis) are the most costly parasitic infestation in the culture of Atlantic salmon (Salmo salar) with control strategies relying heavily on the use of a limited number of ...
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Association between sea lice (Lepeophtheirus salmonis) infestation on Atlantic salmon farms and wild Pacific salmon in Muchalat Inlet, Canada
... The prevalence of infestation with sea lice on out-migrating Chum was also consistently at very low levels, though a significant rise was observed in 2016. This rise corresponded to a marked increase in the lice ...
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Sensitivity of salmon lice (Lepeophtheirus salmonis) in New Brunswick, Canada, to the organophosphate Salmosan® (w/w 50% azamethiphos) using bioassays
... Sea lice resistance towards organophosphate compounds has previously been documented in Norway, Scotland and Ireland (Jones et al., 1992; Roth et al., 1996; Tully & McFadden 2000; Fallang et al., 2004), with reports ...
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The use of a general linear model to identify epidemiological factors affecting the abundance of chalimus stages of the sea louse (Lepeophtheirus salmonis) on Scottish salmon farms
... Sea lice infections are a ubiquitous and continuous threat to the aquaculture industry, and in particular to salmon farming. In recent times, the most damaging species in European waters has been Lepeophtheirus ...
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Assessment of sea lice (lepeophtheirus salmonis) management in New Brunswick, Canada using deltamethrin (AlphaMax®) through clinical field treatment and laboratory bioassay responses
... 16 Anatomical and biological differences between the different stages of the parasite life cycle could also theoretically account for variation in response to deltamethrin treatment. It has been postulated that the ...
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Characterisation of proteins in excretory/secretory products collected from salmon lice, Lepeophtheirus salmonis
... louse, Lepeophtheirus salmonis, is an ectoparasitic copepod which feeds on the mucus, skin and blood of salmonid fish ...L. salmonis which are thought to be responsible for immunomodulation of the ...
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A model for sea lice (Lepeophtheirus salmonis) dynamics in a seasonally changing environment
... Sea lice (Lepeophtheirus salmonis) are a significant source of monetary losses on salmon farms. Sea lice exhibit temperature-dependent development rates and salinity-dependent mortality, but to date no ...
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