A Review of Research and Field Data on Relative Louse Infection Levels on Wild Salmon Smolts and Sea Trout and the Proximity of Fish Farms to River Estuaries
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Sea Louse Infection of Juvenile Sockeye Salmon in Relation to Marine Salmon Farms on Canada's West Coast
BACKGROUND Pathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently infected with lice. Here we report the first investigation of the potential role of salmon farms in transmitting sea lice to juvenile sockeye sal...
متن کاملPreamble Patricia Gallaugher, Director, Continuing Studies in
The impact of the salmon louse (Lepeophtheirussalmonis (Kroyer)) on populations of sea trout andsalmon in Ireland and other European countries isoutlined and recommendations are made for themanagement of marine salmon farms aimed atminimising such impacts. The paper describes thegrowth of the salmon farming industry in westernIreland during the 1980s and the resu...
متن کاملScottish Marine and Freshwater Science Volume 2 No 3 BACTERIAL KIDNEY DISEASE: ASSESSMENT OF RISK TO ATLANTIC SALMON FARMS FROM INFECTION IN TROUT FARMS AND OTHER SOURCES
Marine Scotland is the directorate of the Scottish Government responsible for the integrated management of Scotland's seas. Marine Scotland Science (formerly Fisheries Research Services) provides expert scientific and technical advice on marine and fisheries issues. Scottish Marine and Freshwater Science is a series of reports that publish results of research and monitoring carried out by Marin...
متن کاملSea lice and salmon population dynamics: effects of exposure time for migratory fish.
The ecological impact of parasite transmission from fish farms is probably mediated by the migration of wild fishes, which determines the period of exposure to parasites. For Pacific salmon and the parasitic sea louse, Lepeophtheirus salmonis, analysis of the exposure period may resolve conflicting observations of epizootic mortality in field studies and parasite rejection in experiments. This ...
متن کاملImpact of early salmon louse, Lepeophtheirus salmonis, infestation and differences in survival and marine growth of sea-ranched Atlantic salmon, Salmo salar L., smolts 1997–2009
The impact of salmon lice on the survival of migrating Atlantic salmon smolts was studied by comparing the adult returns of sea-ranched smolts treated for sea lice using emamectin benzoate or substance EX with untreated control groups in the River Dale in western Norway. A total of 143 500 smolts were released in 35 release groups in freshwater from 1997 to 2009 and in the fjord system from 200...
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