metacercaria

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metacercaria

[¦med·ə·sər′kar·ē·ə]
(invertebrate zoology)
Encysted cercaria of digenetic trematodes; the infective form.
References in periodicals archive ?
After examination, 20 out of 38 fish were infected with heterophyid metacercariae encysted in the cranial cavity, muscles and the abdominal cavity.
Invasion of metacercariae of the eye fluke Diplostomum sp.
Majority of the food borne trematodal diseases results from the consumption of raw or undercooked fish containing infective metacercariae (WHO 2004; Chi et al.
To better understand any such impact on moose, we administered metacercariae of the giant liver fluke to 3 captive, hand-reared moose, observed their behaviour and weight gain following infection, and performed subsequent necropsies.
Species of Alaria and Fibricola utilize mammals as final hosts, species of Gorgoderina utilize anurans as final hosts; metacercariae of all 3 species are commonly found in frogs (Smyth and Smyth 1980).
Ecological association within five size classes of the hosts between abdominal metacercariae of M.
5) can be divided into three general types: 1) cercariae formed metacercariae on a substrate external to a host (Fig.
ciliates, gregarines, nematodes, cestodes, and metacercariae of trematodes, that could be tallied individually, following procedures described by Ellis et al.
This may be due to the fact that high level of infection was thought to be associated with the extension of the canal system providing additional areas of swamp and marsh where the cattle were exposed to infective larvae and metacercariae of helminths as was also noted by Mishra et al (1997), Oyeduntan et al.
Unidentified metacercariae of digenean trematodes encysted in the connective tissue of seven ovaries were distinguished (Fig.