L.A. Ford T.E. Jones R. C. Cipriano 1994 <div id="9840143" class="article-section-wrapper js-article-section js-content-section " data-section-parent-id="0"><p>Fish were sampled at the Ed Weed State Fish Hatchery (South Hero, Vermont, USA) in September 1992.<span>&nbsp;</span><i>Aeromonas salmonicida</i><span>&nbsp;</span>was common, with concentrations as high as 10⁵<span>&nbsp;</span>to 10⁷<span>&nbsp;</span>colony-forming units per gram of mucus, and readily recovered from most mucus samples obtained from furunculosis-sensitive populations of brook trout (<i>Salvelinus fontinalis</i>), lake trout (<i>Salvelinus namaycush</i>), and Atlantic salmon<span>&nbsp;</span><i>(Salmo salar)</i>. The pathogen was the predominant microorganism and accounted for greater than 85% of the total number of bacteria isolated from the mucus of these fish. By comparison,<span>&nbsp;</span><i>A. salmonicida</i><span>&nbsp;</span>was recovered only from two rainbow trout (<i>Oncorhynchus mykiss</i>), and bacterial frequencies did not exceed 10³<span>&nbsp;</span>colony-forming units per gram of mucus. The pathogen was not recovered from the mucus of steelhead (<i>O. mykiss</i>) or Rome brown trout (<i>Salmo trutta</i>) selectively bred for resistance to furunculosis, even though there was widespread contagion throughout the hatchery and fish were cultured on a common, unprotected water supply.</p></div> application/pdf 10.7589/0090-3558-30.4.577 en Wildlife Disease Association Relationship between resistance of salmonids to furunculosis and recovery of Aeromonas salmonicida from external mucus article