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Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276On-line version ISSN 1678-8060

Abstract

FALAVIGNA, Dina Lúcia Morais; VELHO, Luiz Felipe Machado  and  PAVANELLI, Gilberto Cezar. Proteocephalidean larvae (Cestoda) in naturally infected cyclopid copepods of the upper Paraná River floodplain, Brazil. Mem. Inst. Oswaldo Cruz [online]. 2003, vol.98, n.1, pp.69-72. ISSN 1678-8060.  http://dx.doi.org/10.1590/S0074-02762003000100009.

The occurrence, prevalence and infection intensity of proteocephalidean larvae in naturally infected intermediate hosts of the Upper Paraná River floodplain are reported. A total of 5,206 zooplanktonic and benthic organisms were analyzed, namely cyclopid (2,621) and calanoid (1,479) copepods, cladocerans (704), rotifers (307), chironomid larvae (41) and ostracods (54). Eight cyclopid copepods - two copepodids, one male and five females - comprising 0.3% of the cyclopid copepods examined, were naturally infected. The male infected belonged to a species of Paracyclops, and the females to Paracyclops sp., Thermocyclops minutus and Mesocyclops longisetus.

Keywords : larvae; Proteocephalidea; cyclopid copepods; Upper Paraná River; Brazil.

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