The Hexamita (= Octomitus ) problem: A preliminary report
THE INTESTINAL FLAGELLATE, Hexamita salmonis (Moore), was described in 1922 from trout in hatcheries throughout New York State. At first associated with the so-called whirling disease of brook trout ( Salvelinus fontinalis ), now believed to be a virus disease, Hexamita was subsequently held responsible for practically any otherwise unexplainable mortality in underyearling salmonids. Over the years, Hexamita , ostensibly H. salmonis , has been the most readily recognized parasite of juvenile salmonids.
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