Dermo disease of oysters caused by Perkinsus marinus

Perkinsus  marinus causes  reduction  in  growth  and  meat  condition  followed  by  mortality  of  susceptible  infected  oysters,  although  most  deleterious  effects  do  not  occur until the second year of exposure.

This is a revision and update of Identification Leaflet 30, original by Fred Kern.