| trematode accumulation by the estuarine gastropod ilyanassa obsoleta. | the accumulation of larval trematodes by ilyanassa obsoleta (gastropoda) at 2 estuarine sites in delaware was studied. initial infection status of snails was assayed by looking for shed cercariae. native snails (most already infected) were deployed at sites a and b, and sentinel snails (putatively uninfected) were deployed at site b. all were individually marked and, if found, reassessed for infection after being free 1-3 summers. himasthla quissetensis, lepocreadium setiferoides, zoogonus rubel ... | 1999 | 10386431 |