An evaluation of the impact of early infestation with the salmon louse Lepeophtheirus salmonis on the subsequent survival of outwardly migrating Atlantic salmon, Salmo salar L., smolts

The potential impact of sea lice infestation on outwardly migrating Atlantic salmon smolts has been investigated by treating populations of ranched salmon, prior to release, with a prophylactic sea lice treatment conferring protection from sea lice infestation, for up to 9weeks. Established populati...

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Bibliographic Details
Published in:Aquaculture 2011-11, Vol.320 (3-4), p.159-163
Main Authors: Jackson, D., Cotter, D., ÓMaoiléidigh, N., O'Donohoe, P., White, J., Kane, F., Kelly, S., McDermott, T., McEvoy, S., Drumm, A., Cullen, A., Rogan, G.
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal aquaculture
Animal populations
Animal productions
Animal, plant and microbial ecology
Aquaculture
Atlantic salmon
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
General aspects
Lepeophtheirus salmonis
Marine
Marine survival
Parasites
Salmo salar
Salmon
Sea lice
Sea water ecosystems
Survival analysis
Synecology
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Summary:The potential impact of sea lice infestation on outwardly migrating Atlantic salmon smolts has been investigated by treating populations of ranched salmon, prior to release, with a prophylactic sea lice treatment conferring protection from sea lice infestation, for up to 9weeks. Established populations of ranched Atlantic salmon with well described rates of return were chosen to investigate the potential contribution of early infestation with the salmon louse, Lepeophtheirus salmonis to mortality in Atlantic salmon. Against a backdrop of a declining trend in survival rates of Atlantic salmon many studies are attempting to elucidate potential causes for this decline. Results from this study over a period of 9years point to infestation with the salmon louse (L. salmonis) as being a minor component of marine mortality in the stocks studied.
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2011.03.029