Reproduction and gonad development of gastropod Thais carinifera in Lake Timsah, Suez Canal, Egypt
Reproduction and gonad development of gastropod Thais carinifera in Lake Timsah, Suez Canal, Egypt
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埃及苏伊士运河蒂姆萨湖腹足动物 Thais carinifera 的繁殖和性腺发育
DOI：
10.21608/ejabf.2009.2032
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发表时间：
2009
影响因子：
--
通讯作者：
A. Yaseen
中科院分区：
文献类型：
--
作者：
N. Radwan;S. Mohammad;Saad Z. Mohamed;A. Yaseen
通过性腺组织学观察，研究了泰国沙蚕（Thais carinifera）的性腺发育、生殖周期和性比。2007年2月至2008年5月期间，每月从埃及苏伊士运河的Timsah湖采集泰国carinifera样本。描述了雄螺和雌螺性腺的分期标准。两性的卵巢和精巢分别由多个生卵卵泡和多个生精卵泡组成。结果表明，泰国卡里费拉鱼的生殖周期可分为5个阶段：早期活跃期、晚期活跃期、成熟期、完全成熟期和部分产卵期（雄性），早期活跃期、晚期活跃期、成熟期、产卵期和枯竭期（雌性）。性别比偏离1：1，男性占主导地位的人口。
onad development, reproductive cycle and sex ratio of Thais carinifera were studied through a histological investigation of its gonads. Samples of Thais carinifera were monthly collected during the period from February 2007 to May 2008, from Lake Timsah, Suez Canal, Egypt. Staging criteria for the gonad of male and female snails were described. The ovary and testis in both sexes were composed of a number of oogenic follicles and several spermatogenic follicles respectively. Reproductive cycle of Thais carinifera could be categorized into five stages: early active, late active, ripe, fully ripe and partially spawning phase (in males), and, early active, late active, ripe, spawned and spent phase (in females). Sex ratio departed from 1:1 and the males dominated the population.