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Nature 451, 23-24 (3 January 2008) | doi:10.1038/451023a; Published online 2 January 2008
Aquaculture: The price of lice
Andrew A. Rosenberg1
Abstract
Wild salmon stocks in Canadian coastal waters are being severely affected by parasites from fish farms. So intense are these infestations that some populations of salmon are at risk of extinction.
The global demand for fish is on the rise, and farmed sources are taking much of the strain — the catch of wild fish has levelled off, and may well be declining1, but aquaculture production is expanding rapidly2. The ecological costs of that expansion can be heavy, however, as Krko
ek et al.Science3.
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