In some specimens for the present histological study, gonadal infection by trematode
(sporocysts and cercariae) and Marteilia-like parasites was observed (Fig.
Fripp (1967) and Senft (1968) observed that the trematode
parasites that live in the biliary system of the animal get their nutrients from the bile or the blood.
In this sense, given the importance of this agroecosystem type in Northeast Argentina, further research efforts should be encouraged to obtain more knowledge about the larval trematode
species that parasitize snails in rice fields (using morphological, molecular and life-cycle data) as well as of their hosts.
cysts have been linked to limb malformations in a variety of amphibian species (for example, Sessions and Ruth 1990; Johnson and others 1999; Sessions and others 1999), including R.
piscatorius samples and noted that 33% of the fishes were not infected with any trematode
Digenetic and aspidogastrid trematodes
from marine fishes of Curacao and Jamaica.
org) to analyze variation of parasite mean intensity as well as trematode
and nematode species richness among locations.
The GIT helminthes were further categorized into nematodes, cestodes and trematodes
and their respective prevalence in goats and sheep was determined.
On the basis of histopathologic work-up, researchers from our hospital previously reported possible trematode
infection in a large group of children with ocular inflammation (17,18).
In a study with deer mice (Peromyscus maniculatus), chronic trematode
infection was related to an investment in fewer, larger offspring (Schwanz 2008).
1) Depending on the trematode
species, the life cycle may include further host stages.
1) F hepatica was described as the first foodborne trematode
that can occur worldwide in the areas where sheep and cattle are raised.