Salmon and Trout Disease

    Abstract

    IN the year 1911, cases of a hitherto unrecognised disease, causing death of large numbers of fish of various kinds, were reported from six rivers in the south-west of England. This was the first official record in Great Britain of the occurrence of furun-culosis, a bacterial disease that has spread to many rivers in England and Wales and is now prevalent throughout Scotland. Serious outbreaks occurred in the Conway and Coquet districts in 1926 when salmon and migratory trout were attacked, and in the Kennet in 1924 and 1925, when the valuable brown-trout fisheries suffered, and in recent years the disease has continued to spread. While in 1932 there was a considerable abatement in the number of serious outbreaks in English rivers, in Scotland conditions were nearly as bad as ever.

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