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Type: Artigo de periódico
Title: Reproductive cycle of Ophionereis reticulata (Ophiuroidea, Echinodermata) on the southeast coast of Brazil
Author: YOKOYAMA, Leonardo Querobim
DUARTE, Luiz Francisco Lembo
AMARAL, Antonia Cecilia Zacagnini
Abstract: The reproductive cycle of Ophionereis reticulata, a common sediment-rocky shore-interface ophiuroid, was examined monthly from January 2002 to January 2003 at Praia Grande beach (Sao Sesbatiao, state of Sao Paulo, Brazil). Mature individuals were found from January 2002 to April 2002 and from November 2002 to January 2003. Spawning was regcorded from January 2002 to March 2002 and from November 2002 to January 2003. Mature sperm is still present in April which could be involved in the fertilization of the last oocytes spawned in March and April. November and December marked the final point in the maturation process, with a high concentration of yolk and lipid nutrients in the oocytes. Ophionereis reticulata showed, for the period analyzed, a single spawning period, during spring and summer.
Subject: Oogenesis
Country: Israel
Citation: INVERTEBRATE REPRODUCTION & DEVELOPMENT, v.51, n.2, p.111-118, 2008
Rights: fechado
Identifier DOI: 10.1080/07924259.2008.9652261
Date Issue: 2008
Appears in Collections:IB - Artigos e Outros Documentos

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