Document Type



Virginia Institute of Marine Science

Publication Date



Marine Resource Advisory No. 51


This publication is devoted to predictions of the probability of invasion by the zebra mussel, Dreissena polymorpha (and the quagga mussel, Dreissena sp.) to specific bodies of water in Virginia. Probability of invasion is divided into risk and susceptibility. Risk refers to the chance, relative to other sites, that a body of water will be inoculated with Dreissena, in sufficient number to establish a population. Inoculation can occur by natural dispersal, but in the mid-Atlantic region is most likely to-occur though accidental introduction by humans, especially via boat traffic. Susceptibility of a body of water refers to the probability, based on known physiological requirements, that Dreissena could survive and reproduce. In this publication predictions are made, concerning both risk and susceptibility, for several bodies of water in Virginia.



Zebra mussel -- Virginia; Dreissena



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