• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Alterations in size, weight and morphology of the eggs of blue swimmer crab, Portunus pelagicus Linnaeus, 1758 (Decapoda, Brachyura, Portunidae) during incubation.
【24h】

Alterations in size, weight and morphology of the eggs of blue swimmer crab, Portunus pelagicus Linnaeus, 1758 (Decapoda, Brachyura, Portunidae) during incubation.

机译：孵化过程中蓝色游泳蟹（Portunus pelagicus Linnaeus，1758）（十足目，Brachyura，Portunidae）卵的大小，重量和形态的变化。

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

Portunus pelagicus Linnaeus, 1758 is an important candidate species for culture in India and trials are for developing its hatchery technology. The present work investigates the changes occurring in diameter, volume, wet weight and morphology of P. pelagicus eggs during incubation which would improve the knowledge base on embryology of species. Mated females from wild were maintained under similar physico-chemical conditions. Once spawned, the egg samples were collected from each animal daily and their diameter, volume, and wet weight were assessed. Based on the changes occurring in egg morphology at 24 hour intervals, the embryo development was classified into eight 'periods'. The egg size and wet weight varied significantly (P<0.01) among crabs and egg size was unrelated with the carapace width of female. The average diameter, volume and wet weight of the egg were 0.324 mm, 0.016 mm3 and 0.048 mg, respectively. Diameter, volume and wet weight of the eggs increased to 13.58, 46.52 and 49.05%, respectively and the major share of increment occurred in last two days.
机译：1758年，印度产的梭鲈（Portunus pelagicus Linnaeus）是印度重要的养殖物种，目前正在试验以发展其孵化场技术。本研究调查了孵化过程中远洋疟原虫卵的直径，体积，湿重和形态发生的变化，这将改善有关物种胚胎学的知识。野外交配的雌性维持在相似的理化条件下。产卵后，每天从每只动物收集卵样品，并评估其直径，体积和湿重。根据以24小时为间隔的鸡蛋形态发生的变化，将胚胎发育分为8个“时期”。蟹的卵大小和湿重差异显着（P <0.01），卵大小与雌性的甲壳宽度无关。鸡蛋的平均直径，体积和湿重分别为0.324 mm，0.016 mm 3 和0.048 mg。卵的直径，体积和湿重分别增加到13.58、46.52和49.05％，增量的主要份额发生在最近两天。

著录项

相似文献

  • 外文文献
  • 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