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Digenean Trematode Infections of Native Freshwater Snails and Invasive Potamopyrgus antipodarum in the Grand Teton National Park/John D. Rockefeller Memorial Parkway Area.
- Source :
- Journal of Parasitology; Feb2009, Vol. 95 Issue 1, p224-227, 4p, 1 Black and White Photograph, 1 Chart
- Publication Year :
- 2009
-
Abstract
- Outside its native range, the invasive New Zealand mud snail (NZMS), Potamopyrgus antipodarum, is rarely reported to harbor parasites. To test this observation, 7 sites along the Snake River and Polecat Creek in the Grand Teton National Park/John D Rockefeller Memorial Parkway area (Wyoming) were surveyed for native aquatic snails, NZMS, and associated digenean trematodes, in July 2005. At 6 sites, native snails harbored patent digenean infections; within 2 hr, ≤10% of lymnaeid snails shed furcocercariae or xiphidiocercariae, and ≤42% of physid snails released furcocercariae or echinostome cercariae. Partial 18S rDNA sequences were recovered from several furcocercariae. Potamopyrgus antipodarum was present at, and collected from, 5 sites. Polymerase chain reaction assays targeting digenean rDNA sequences in DNA extracted from pools of 150 NZMS snails did not detect parasites. The examination of 960 NZMS by overnight shedding yielded 1 occurrence of (surface-encysted) metacercariae of an unclassified notocotylid (based on 18S and 28S rDNA sequences). The dissection of 150 ethanol-fixed NZMS (30/site) revealed 2 types of digenean metacercariae encysted in tissues of 5 snails from Polecat Creek. Thus, invasive NZMS may serve as first and second intermediate host for digenean parasites. [ABSTRACT FROM AUTHOR]
- Subjects :
- PARASITES
POTAMOPYRGUS
HYDROBIIDAE
NEW Zealand mudsnail
Subjects
Details
- Language :
- English
- ISSN :
- 00223395
- Volume :
- 95
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Journal of Parasitology
- Publication Type :
- Academic Journal
- Accession number :
- 36812413
- Full Text :
- https://doi.org/10.1645/GE-1614.1