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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 102, No. 6, 2007, pp. 671-674
Bioline Code: oc07107
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 102, No. 6, 2007, pp. 671-674

 en Reproductive activity alterations on the Biomphalaria glabrata check for this species in other resources exposed to Euphorbia splendens var. hislopii check for this species in other resources latex
Mello-Silva, Clélia Christina; Vilar, Mônica Magno; Bezerra, José Clecildo Barreto; de Vasconcellos, Maurício Carvalho; Pinheiro, Jairo & de A Rodrigues, Maria de Lurdes

Abstract

The reproductive activity of Biomphalaria glabrata exposed to Euphorbia splendens var. hislopii check for this species in other resources latex was evaluated. Parameters related to fecundity and fertility were observed. The snails were exposed to the LD50 (1 mg/l) of crude latex. At the first week post exposure (p.e.), the egg laying was reduced. After the fourth week p.e., an increase of the number of eggs/snail occurred. The results showed a marked reduction in the hatching of the snails, revealing an interference of latex exposure with the reproductive process of B. glabrata of E. splendens var. hislopii. The LD50 of the latex may be used as an alternative method to control the size of the populations of B. glabrata in field.

Keywords
Biomphalaria glabrata - plant moluscicide - reproductive activity alteration - snail population control

 
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