Dermowatch: A new tool for managing Perkinsus marinus disease in Eastern Oysters, Crassostrea virginica
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A website called DermoWatch has been established (www.blueblee.com/dermo) to track the progression of Perkinsus marinus (= Dermocystidium marinum) in Galveston Bay and allow users from other locations to also calculate a time to a critical level of disease (t sub(Crit)). Data on water temperature (T) and salinity (S), initial level of disease and oyster length are entered. An embedded model converts measured weighted incidence (WI) values and the critical WI to parasite number (a WI of 1.5 is considered critical), calculates a rate of change (r) of the parasite population using measured values of T and S, and solves for t sub(Crit) by simulation. Estimates of t sub(Crit) from Galveston Bay and other areas should support decisions concerning transplanting infected oysters to lower salinity areas, harvesting heavily-infected populations early, and diverting freshwater into high-salinity estuaries
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Host-parasite interactions among broadly distributed populations of the eastern oyster Crassostrea virginica and the protozoan Perkinsus marinus Bushek D; Allen S Jr (, 1996)The protozoan oyster parasite Perkinsus marinus causes extensive mortality in eastern oyster (Crassostrea virginica) populations during summer and fall across much of the oyster's distribution. Despite more than 40 yr of ...
Ray SM; Soniat TM (, 2003 200)DermoWatch is a web site (www.blueblee.com/dermo), a monitoring program and an online community for the management of the oyster parasite, Perkinsus marinus. The web site contains an embedded model, which calculates a time ...
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