by Michigan DNR

The largemouth bass virus has been found in two additional lakes in Michigan’s northern Lower Peninsula, following an initial discovery this past October in Cedar Lake (Iosco County). This time LMBV was found in smallmouth bass in Beaver Lake (Alpena County) during the investigation of a fish kill and in Avalon Lake (Montmorency County). These latest discoveries indicate the virus is spreading northward in Michigan.

Prior to this fall, the virus previously affected adult largemouth bass in the early 2000s in southern Michigan lakes. In those lakes the pathogen killed 10 to 20 percent of the larger adult largemouth bass at first exposure, with populations recovering in a few years.

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