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1 August 2013 Biomphalaria straminea and Biomphalaria glabrata (Mollusca: Planorbidae) as New Intermediate Hosts of the Fish Eyefluke Austrodiplostomum compactum (Trematoda: Diplostomidae) in Brazil
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Abstract
Austrodiplostomum compactum has been involved in cases of ocular diplostomiasis in several species of fish in Brazil, but the molluscan intermediate hosts of the parasite remain unknown. In the present study, malacological surveys were carried out at Pampulha Reservoir, Belo Horizonte, Minas Gerais, Brazil, between January 2009 and July 2012. A total of 16,119 specimens of Biomphalaria spp. were collected and examined, of which 68/14,948 specimens (0.45%) of Biomphalaria straminea and 6/541 (1.11%) of Biomphalaria glabrata were found harboring a strigeid cercariae. Groups of 5 specimens of Cyprinius carpio were experimentally infected with these cercariae (100 larvae/fish), and metacercariae were recovered from the eyes of the fish, 65 days after infection, with a mean intensity of infection of 10.4 (8–13) metacercariae/fish. Morphological study on cercariae and metacercariae identified them as A. compactum. This is the first record of cercariae of A. compactum in Brazil, and B. straminea and B. glabrata as new intermediate hosts for the parasite.
H. A. Pinto and A. L. Melo " Biomphalaria straminea and Biomphalaria glabrata (Mollusca: Planorbidae) as New Intermediate Hosts of the Fish Eyefluke Austrodiplostomum compactum (Trematoda: Diplostomidae) in Brazil," Journal of Parasitology 99(4), (1 August 2013). https://doi.org/10.1645/12-13.1
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