1981
DOI: 10.1590/s0074-02761981000100004
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Algumas observações de laboratório sobre biologia e ecologia de Pomacea haustrum (Reeve, 1856)

Abstract: Observações de laboratório sobre o pilideo Pomacea haustrum (Reeve, 1856) competidor-predador de planorbineos hospedeiros intermediários da esquistossomose mansoni mostraram que: Machos e fêmeas atingem maturidade sexual após um ano de idade, copulando preferencialmente pela manhã e ovipondo à noite. O tempo gasto nestes atos é variável; no caso da oviposição ele depende do número de ovos a serem postos. Os ovos são arredondados, com diâmetro médio de 3mm e coloração rósea que vai se alterando à medida que os … Show more

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Cited by 6 publications
(2 citation statements)
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“…Hatchlings can live safely out of water for longer than 24 h (K. Ichinose, pers. obs., 1999), suggesting that crawling above water for several hours gives the individuals a chance to escape aquatic predators, such as fish or insects (Guimarães 1981; Suzuki et al . 1999; Kai et al .…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Hatchlings can live safely out of water for longer than 24 h (K. Ichinose, pers. obs., 1999), suggesting that crawling above water for several hours gives the individuals a chance to escape aquatic predators, such as fish or insects (Guimarães 1981; Suzuki et al . 1999; Kai et al .…”
Section: Discussionmentioning
confidence: 99%
“…Such an aggregation of individuals may occur in Pomacea snails. Hatchlings synchronously hatch from egg masses, fall into the water and then start their lives (Guimarães 1981; Miyahara et al . 1986).…”
Section: Discussionmentioning
confidence: 99%