Astronotus ocellatus (Cichlidae: Pisces) and Macropodus opercularis (Anabatidae: Pisces) as predators of immature Aedes fluviatilis (Diptera: Culicidae) and Biomphalaria glabrata (Mollusca: Planorbidae)

Memórias do Instituto Oswaldo Cruz

Rotraut A. G. B. Consoli¹  Carlos T. Guimaräes¹  Jacqueline A. Do Carmo¹  Delza M. Soares¹  José S. Dos Santos¹ 

[1] ,FIOCRUZ Centro de Pesquisas René Rachou Belo Horizonte,Brasil

关键词: biological control;    Brazil;    fishes;    Astronotus ocellatus;    macropodus opercularis;    mosquitoes;    snails;   

DOI  :  10.1590/S0074-02761991000400007

来源: SciELO

【 摘 要 】

Two fish species, Astronotus ocellatus (Cichlidae) and Macropodus opercularis (Anabatidae) were tested for predacious behavior toward immature mosquitoes (Aedes fluviatili9s, Diptera: Culicidae) and schistosomiasis snail hosts (Biomphalaria glabrata, Mollusca: Planorbidae), in the presence or absence of non-living food and laboratory conditions. A. ocellatus, a species indigenous to Brazil, was a very efficient predator of both organisms (alpha=1,05); M. operculatis, an exotic species, preyed well on immature mosquitoes, but small snails and snail egg-masses were ingested only irregulary. Both fish species seemed to prefer live to non-living food.

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