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Histological investigation of the reproductive cycles of the limpets Patella vulgata and Patella ulyssiponensis

机译:and和ly pon生殖周期的组织学研究。

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摘要

This study devised a staging system for, and monitored, the gonad development of the limpet species Patella vulgata and Patella ulyssiponensis on the South West coast of Ireland using histological techniques. Maturation began in the males of both species in January and in the females it began in March. There was no statistical difference in gonad development between sexes and between species. Spawning in the male P. vulgata occurred from September to December 2003 and in September and October 2004. In female P. vulgata spawning occurred from October to December 2003, no spawning of females was observed in 2004. In male P. ulyssiponensis spawning occurred in November and December 2003 and from September 2004 to December 2004. Spawning was observed from November 2003 to January 2004 and in September 2004 in female P. ulyssiponensis. Sex ratios also varied between the species and between months sampled. Nevertheless more males were observed in both species.
机译:这项研究设计了一个分期系统,并使用组织学技术监测了爱尔兰西南海岸the类species虫和ulyssiponensis的性腺发育。两个物种的雄性都在1月开始成熟,而雌性则从3月开始成熟。性别之间和物种之间的性腺发育没有统计学差异。雄性P. vulgata的产卵发生在2003年9月至2004年9月和2004年10月。雌性P. vulgata的产卵发生在2003年10月至2003年12月,2004年未观察到雌性的产卵。 2003年11月和2003年12月以及2004年9月至2004年12月。2003年11月至2004年1月以及2004年9月在雌性P. ulyssiponensis中产卵。性别比例在物种之间和采样月份之间也不同。然而,在两个物种中均观察到更多的雄性。

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