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Sea lice infection rates on juvenile …

…pink and chum salmon in the nearshore marine environment of B.C., Canada

ABSTRACT
This study compared sea lice (Lepeophtheirus salmonis) infestation rates on juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon in five nearshore areas of the British Columbia coast selected on the basis of proximity to salmon farms. A 10-week study in the Broughton Archipelago found sea lice were 8.8 times more abundant on wild fish near farms holding adult salmon and 5.0 times more abundant on wild fish near farms holding smolts than in areas distant from salmon farms…

REPORT – Canadian Journal of Fisheries and Aquatic Sciences

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Declining Wild Salmon Populations…

… in relation to Parasites from Farm Salmon

ABSTRACT
Rather than benefiting wild fish, industrial aquaculture may contribute to declines in ocean fisheries and ecosystems. Farm salmon are commonly infected with salmon lice (Lepeophtheirus salmonis), which are native ectoparasitic copepods. We show that recurrent louse infestations of wild juvenile pink salmon (Oncorhynchus gorbuscha), all associated with salmon farms, have depressed wild pink salmon populations and placed them on a trajectory toward rapid local extinction…

REPORT – SCIENCE Journal

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Transmission dynamics of parasitic sea lice…

…from farm to wild salmon

Marine salmon farming has been correlated with parasitic sea lice infestations and concurrent declines of wild salmonids. Here, we report a quantitative analysis of how a single salmon farm altered the natural transmission dynamics of sea lice to juvenile Pacific salmon…

REPORT – Royal Society

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ISA Virus and Sea Lice (FIS)

Chile – The National Fisheries and Aquaculture Service (Sernapesca) reported that there has been an increase in the prevalence of two pathogens that harm domestic salmon: the infectious salmon anemia (ISA) virus and caligus or sea lice…

Fish Information & Services

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