Variation of snail's abundance in two water bodies harboring strains of Pseudosuccinea columella resistant and susceptible to Fasciola hepatica miracidial infection, in Pinar del Río Province, Cuba
Mem. Inst. Oswaldo Cruz
;
100(7): 725-727, Nov. 2005. tab, mapas
Article
in English
| LILACS
| ID: lil-419695
RESUMEN
The abundance of freshwater snails in two rural sites of Pinar del Río, Cuba, which harbor Pseudosuccinea columella susceptible and resistant to miracidia of Fasciola hepatica was followed for one year. Susceptible snails were found in the most anthropic site (IPA) whereas the resistant population inhabited the most preserved one (El Azufre). Only two snail species coexisted with P. columella at IPA site (Physa cubensis and Tarebia granifera) while five species were found at El Azufre, including an endemic from that province (Hemisinus cubanianus). Populations of both resistant and susceptible snails showed stable densities throughout the year, although the susceptible strain attained higher abundance. The highest densities were observed in April-May 2004 for the susceptible population whereas the resistant strain attained its highest abundance in January 2004. No record of Fossaria cubensis was made and the thiarid T. granifera occurred only at low densities. One of the sampled sites (IPA) meets all the conditions for the first report of P. columella naturally infected with larvae of F. hepatica.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Snails
/
Fasciola hepatica
Limits:
Animals
Country/Region as subject:
Caribbean
/
Cuba
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2005
Type:
Article
Affiliation country:
Cuba
Institution/Affiliation country:
Instituto de Medicina Tropical Pedro Kourí/CU
/
Universidad de la Habana/CU
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