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http://repositorio.ufc.br/handle/riufc/63584
Tipo: | Artigo de Periódico |
Título: | Spawn and larval development of Pleuroploca aurantiaca (Lamarck, 1816) (Gastropoda: Fasciolariidae) from Northeast Brazil |
Autor(es): | Meirelles, Carlos A. O. Matthews-Cascon, Helena |
Palavras-chave: | Reproduction;Development;Mollusca;Fasciolariidae;Pleuroploca;Pleuroploca aurantiaca |
Data do documento: | 2005 |
Instituição/Editor/Publicador: | Scientia Marina |
Citação: | MEIRELLES, Carlos A. O.; MATTHEWS-CASCON, Helena. Spawn and larval development of Pleuroploca aurantiaca (Lamarck, 1816) (Gastropoda: Fasciolariidae) from Northeast Brazil. Scientia Marina, [s. l.], v. 69, n. 2, p. 199-204, 2005. |
Abstract: | Spawn and larval development stages of Pleuroploca aurantiaca from northeast Brazil are described. Thereproductive period lasted from August to December, with a peak in November. Spawn masses were composed of 29 ±3vase-shaped capsules which measured 9 ±1 mm (n = 30) in length and 4.5 ±0.5 mm (n = 30) in width. The exit plug waslocated on the apical area and measured 2.5 ±0.5 mm (n = 30) in diameter. Each capsule had 353 ±59 (n = 10) eggs thatmeasured 240 ±1 µm (n = 15) in diameter. On the tenth day, the intracapsular veliger stage was observed. The intracapsu-lar pediveliger stage was observed on the twenty first day, when the individuals had a functional foot and a reduced velum.Hatching occurred on the thirtieth day, when the early juvenile measured 3 to 5 mm in length and there was no remainingvelum. Only 1% of the eggs developed to the hatching stage. The rest were nurse eggs used by embryos as a food resource.Pleuroploca aurantiaca has an intracapsular metamorphosis development type |
URI: | http://www.repositorio.ufc.br/handle/riufc/63584 |
Tipo de Acesso: | Acesso Aberto |
Aparece nas coleções: | DBIO - Artigos publicados em revista científica |
Arquivos associados a este item:
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2005_art_caomeirelles.pdf | 1,68 MB | Adobe PDF | Visualizar/Abrir |
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