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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 99, No. 5, 2004, pp. 535-540
Bioline Code: oc04114
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 99, No. 5, 2004, pp. 535-540

 en Evaluation of Mesocyclops annulatus check for this species in other resources (Copepoda: Cyclopoidea) as a Control Agent of Aedes aegypti check for this species in other resources (Diptera: Culicidae) in Argentina
Gerardo A Marti; Maria V Micieli; Ana C Scorsetti & Gerardo Liljesthröm

Abstract

We evaluated the potential of Mesocyclops annulatus check for this species in other resources as a control agent of Aedes aegypti check for this species in other resources in La Plata city (Argentina). Mosquito larval survivorship due to predation by these copepods was estimated at weekly intervals during the oviposition period of A. aegypti. Mean weekly A. aegypti larval survivorship in cylindrical plastic containers (12 cm height and 11 cm diameter) with copepods was significantly lower than in control containers. Furthermore, weekly larval survival was negatively correlated with M. annulatus adult density, and approximately 23 adult copepods/container would be a threshold density over which the weekly mosquito larval survivorship approached zero. The copepods were able to persist in all containers during approximately 100 days (in three of them until the end of the experiment: 155 days) without the resource represented by A. aegypti larvae. The predation and persistence observed suggest that M. annulatus is a potential control agent to be considered in biological control programs.

Keywords
Aedes aegypti - Culicidae - Mesocyclops annulatus - copepoda - larval predation - biological control - Argentina

 
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