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Larval trematode infections in freshwater gastropods from the Albufera Natural Park in Spain

  • R. Toledo (a1), C. Muñoz-Antolí (a1), M. Pérez (a1) and J.G. Esteban (a1)

Abstract

Malacological samplings were made from January 1994 to December 1996 in the Albufera Natural Park (Valencia, Spain) to trace the dynamics of molluscan populations and the prevalence and intensity of infection by larval trematodes. A total of 10,533 freshwater gastropods belonging to seven species (Lymnaea auricularia, L. truncatula, L. palustris, L. peregra, Bithynia tentaculata, Physa acuta and Gyraulus chinensis) was examined, and 110 (1.04%) were found to harbour some of the nine distinguishable types of cercariae, namely four echinostome cercariae (Hypoderaeum conoideum, Echinoparyphium recurvatum, Euparyphium albuferensis, and Echinostoma sp.), four furcocercous cercariae, and one xiphidiocercous cercaria. This study shows that the composition of the snail and trematode communities may be determined by the particular environmental conditions present and the human intervention in the area.

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*Fax: 34 6 3604611 E-mail: rafael.toledo@uv.es

References

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Journal of Helminthology
  • ISSN: 0022-149X
  • EISSN: 1475-2697
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