Larval stages of trematodes in gastropods from Lake Chicnahuapan, State of Mexico, Mexico.
During the period from January to December (2007), 1,095 freshwater molluscs of four species were captured (Lymnaea stagnalis, Stagnicola elodes, Physella cubensis and Physa acuta) in Lake Chicnahuapan, State of Mexico, Mexico. Two hundred seventy-two (24.84% prevalence) of these molluscs were parasitised by 11 trematode species (from which two were not identified at the species level) having six cercariae species and five metacercariae species represented in five families. The cercariae Telorchis corti (Plagiorchiidae) and the metacercariae Cotylurus cornutus (Strigeidae) were the species with the highest prevalence among the examined snails. The highest percentage of infection was observed in L. stagnalis (27.45% of prevalence, n = 572) and P. cubensis (23.96%, n = 455). Twenty-one of the examined snails had multiple infections with up to three trematode species.
Barragán-Sáenz
Francisco Adrián
FA
Laboratorio de Ecología, Evolución y Conservación, Centro de Investigación en Recursos Bióticos, San Cayetano de Morelos, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco km 14.5, Toluca, Mexico. barragansaenz@gmail.com
Sánchez-Nava
Petra
P
Hernández-Gallegos
Oswaldo
O
Salgado-Maldonado
Guillermo
G
D000818:Animals; D005618:Fresh Water; D007814:Larva; D008800:Mexico; D008974:Mollusca / Q000469:parasitology*; D015995:Prevalence; D014200:Trematoda / Q000145:classification* / Q000302:isolation & purification*; D014201:Trematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*