Some aspects of the development of Lobatostoma jungwirth Kritscher, 1974 (Aspidogastrea) in snails and cichlid fishes from Buenos Aires, Argentina
Mem. Inst. Oswaldo Cruz
;
94(1): 31-5, Jan.-Feb. 1999. ilus, tab, graf
Article
in English
| LILACS
| ID: lil-225928
RESUMO
The mollucs Heleobia castellanosae and Ampullaria canaliculata and cichlid fishes were collected from an artificial pond at Tres de Febrero Park (Buenos Aires city), between June 1994 and May 1995. One hundred and eight of 2,467 H. castellanosae examined were infected with pre-adults of Lobatostoma jungwirthi, 112 of them in concurrent infections with digeneans. L. jungwirthi was significantly more prevalent in larger snails, specially those infected with larval digeneans, but the prevalence of infection did not fluctuate significantly throughout the year. A. canaliculata and cichlids smaller than 10 cm were not infected, but larger Cichlasoma facetum harboured adults of L. jungwirthi in their intestines. Experimental infections of C. facetum and Gymnogeophagus meridionalis with pre-adult aspidogastreans obtained from H. castellanosae were successful. The development of L. jungwirthi in the snail host involves five arbitrary growth phases. Its life-cycle is heteroxenous, similar to that described for L. manteri, with H. castellanosae as the intermediate host and cichlid fishes as the definitive host in this pond.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Snails
/
Trematoda
/
Perches
/
Fishes
/
Mollusca
Type of study:
Risk factors
Limits:
Animals
Country/Region as subject:
South America
/
Argentina
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
1999
Type:
Article
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