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Proteocephalidean larvae (Cestoda) in naturally infected cyclopid copepods of the upper Paraná River floodplain, Brazil

Author(s): Falavigna Dina Lúcia Morais | Velho Luiz Felipe Machado | Pavanelli Gilberto Cezar

Journal: Memórias do Instituto Oswaldo Cruz
ISSN 0074-0276

Volume: 98;
Issue: 1;
Start page: 69;
Date: 2003;
Original page

Keywords: larvae | Proteocephalidea | cyclopid copepods | Upper Paraná River | Brazil

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.

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