Mesocyclops annulatus check for this species in other resources - Aedes aegypti check for this species in other resources - Culex pipiens check for this species in other resources - Argentina"/>
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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 6, 2002, pp. 835-838
Bioline Code: oc02159
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 6, 2002, pp. 835-838

 en Laboratory Evaluation of Mesocyclops annulatus check for this species in other resources (Wierzejski, 1892) (Copepoda: Cyclopidea) as a Predator of Container-breeding Mosquitoes in Argentina
María V Micieli; Gerardo Marti & Juan J García

Abstract

In laboratory bioassays we tested the predatory capacity of the copepod Mesocyclops annulatus check for this species in other resources on Aedes aegypti check for this species in other resources and Culex pipiens check for this species in other resources larvae. A single adult female of M. annulatus caused 51.6% and 52.3% mortality of 50 first instar larvae of Ae. aegypti and Cx. pipiens respectively, in a 72 h test period. When alternative food was added to the containers, mortality rates declined to 16% and 10.3% for Ae. aegypti and Cx. pipiens respectively. When 50 first instar larvae of each of the two mosquito species tested were placed together with a single adult female of M. annulatus , mortality rates were 75.5% for Ae. aegypti larvae and 23.5% for Cx. pipiens larvae in a three day test period. Different density of adult females of M. annulatus ranged from 5 to 25 females produced mortality rates of Ae. aegypti first instar larvae from 50% to 100% respectively. When a single adult female of M. annulatus was exposed to an increasing number of first-instar Ae. aegypti larvae ranging from 10 to 100, 100% mortality was recorded from 1 to 25 larvae, then mortality declined to 30% with 100 larvae. The average larvae killed per 24 h period by a single copepod were 29.

Keywords
copepod - Mesocyclops annulatus check for this species in other resources - Aedes aegypti check for this species in other resources - Culex pipiens check for this species in other resources - Argentina

 
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