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A Mark-Recapture Study of Trematode Parasitism in Overwintered Helisoma anceps (Pulmonata), with Special Reference to Halipegus occidualis (Hemiuridae).
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Shostak, A.W., Esch, G.W., Goater, T.M., Williams, J.A.
A collection of 556 snails, Helisoma anceps, was made from a pond in the Piedmont area of North Carolina during October 1987. Snails were measured and assayed for trematode parasitism, and then 500 randomly selected individuals were marked and returned to the pond. Collections made between 23...
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