...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Ichthyology >Dynamics of the Water Content and the Concentrations of the Ions of Natrium Potassium Calcium and Magnesium in the Gonads of Mature Roach Rutilus rutilus (Cyprinidae) during the Reproduction Cycle
【24h】

Dynamics of the Water Content and the Concentrations of the Ions of Natrium Potassium Calcium and Magnesium in the Gonads of Mature Roach Rutilus rutilus (Cyprinidae) during the Reproduction Cycle

机译：繁殖周期中成熟Ro鱼（util科）性腺中水分和钠钾钙镁离子的动态变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The concentrations of cations and the water remain stable in the gonads (stage II and IV) of males and females of roach Rutilus rutilus. Significant changes of these parameters take place during stage III, during the transition to stage V (functionalmaturation), and during the rehabilitation period after spawning (stage VI). In the ovaries at stage III, during vitellogenesis, significant decrease of the water content and potassium ions and increase of natrium, calcium, and magnesium are observed. Just before the spawning starts, during short-term stage V, the water content and natrium concentration increase in the oocytes; in the meantime, the concentrations of calcium and magnesium decrease. During the spermatogenesis (stage III), the natrium concentration in the spermary decreases, and the potassium concentration increases. During stage V, the opposite dynamics is observed, when the concentration of natrium increases greatly, and potassium decreases. The role of the ions in the fish reproductionis discussed.
机译：util鱼（Rutilus rut​​ilus）的雄性和雌性的性腺（II和IV期）中的阳离子和水的浓度保持稳定。这些参数的显着变化发生在阶段III，过渡到阶段V（功能成熟）以及产卵后的恢复阶段（阶段VI）。在第三阶段的卵巢中，在卵黄发生过程中，观察到水含量和钾离子显着下降，并且钠，钙和镁含量增加。刚开始产卵之前，在短期阶段V中，卵母细胞中的水含量和钠浓度增加。同时，钙和镁的浓度降低。在生精过程中（阶段III），精子中的钠浓度降低，而钾浓度升高。在第五阶段，当钠的浓度大大增加而钾减少时，则观察到相反的动力学。讨论了离子在鱼类繁殖中的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号