| 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 |
| digenean diversity in labrid fish from the bay of bizerte in tunisia. | six species of digeneans (proctoeces maculatus (looss, 1901), helicometra fasciata (odhner, 1902), helicometra pulchella (odhner, 1902), macvicaria alacris (looss, 1901), peracreadium genu (nicoll, 1909) and zoogonus rubellus (olson, 1868)) were found for the first time in labrid fish (symphodus tinca (linnaeus, 1758), labrus merula (linnaeus, 1758) and labrus viridis (linnaeus, 1758)) from the bay of bizerte. except for p. maculatus and z. rubellus, which are limited to the rectum, these helmin ... | 2010 | 19580692 |
| host quality and spatial patterning in infections of the eastern mudsnail (ilyanassa obsoleta) by two trematodes (himasthla quissetensis and zoogonus rubellus). | several studies have suggested that the fitness of a parasite can be directly impacted by the quality of its host. in such cases, selective pressures could act to funnel parasites towards the highest-quality hosts in a population. the results of this study demonstrate that snail host quality is strongly correlated with spatial patterning in trematode infections and that habitat type is the underlying driver for both of these variables. two trematodes (himasthla quissetensis and zoogonus rubellus ... | 2012 | 22082492 |
| infrapopulation sizes of co-occurring trematodes in the snail ilyanassa obsoleta. | this study addresses the infrapopulation sizes of 2 larval trematode species himasthla quissetensis and zoogonus rubellus as they co-occur within their estuarine snail host ilyanassa obsoleta. rediae of h. quissetensis and sporocysts of z rubellus were counted in snails singly infected with each parasite and in snails infected with both. comparisons of the counts indicate that infrapopulations of h. quissetensis were unaffected by co-occurrence with z rubellus. however, z. rubellus infrapopulati ... | 2002 | 12435125 |
| parasitic castration of the marine prosobranch gastropod nassarius obsoletus by sporocysts of zoogonus rubellus (trematoda): histopathology. | | 1973 | 4696848 |