Fish farming may help evolution of super louse


Emerging research suggests that parasites and diseases of farmed fish may be evolving to become even more harmful.

Mathias Stølen Ugelvik at the University of Bergen, Norway, and colleagues found that Atlantic salmon (Salmo salar) infected with salmon lice (Lepeophtheirus salmonis) derived from two Norwegian fish farms suffered more-severe symptoms than those infected with lice from wild salmon, The Scientist website reports.

“Salmon lice from areas with fish farming appear to have evolved toward a......................

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