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The Cohen
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Farmed Salmon

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Scientific
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Reports

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Salmon Confidential video

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VIRUSES:

Abstract

Background
Piscine reovirus (PRV) is a newly discovered fish reovirus of anadromous and marine fish ubiquitous among fish in Norwegian salmon farms, and likely the causative agent of heart and skeletal muscle inflammation (HSMI). HSMI is an increasingly economically significant disease in Atlantic salmon (Salmo salar) farms. The nucleotide sequence data available for PRV are limited, and there is no genetic information on this virus outside of Norway and none from wild fish.


SEA LICE:

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.


CONTAMINANTS:

Findings

Analysis of salmon fillets from about 700 farmed and wild salmon produced in eight major farmed salmon producing regions and purchased in 16 large cities in North America and Europe found significantly higher concentrations of contaminants in farmed salmon than in their wild counterparts.