首页> 外文期刊>Biology Bulletin >Intraspecies Variation of Reproductive Strategies in Perch (Perca fluviatilis)
【24h】

Intraspecies Variation of Reproductive Strategies in Perch (Perca fluviatilis)

机译:鲈鱼(Perca fluviatilis)繁殖策略的种内变异

获取原文
获取原文并翻译 | 示例
           

摘要

The variation of reproductive strategies in different populations of perch and intrapopulation groups differing in the rate of growth have been analyzed. Using a bioenergetic approach, the origin and differences between these groups have been studied. It was shown that bioenergetic mechanisms of regulation of the sizes and weight of the eggs lead to formation of the strategy of forced reproduction in the slow-growing group of perch, unlike the reproductive strategy of the fast-growing group of perch characterized by a later reaching of sexual maturity at a greater relative weight of gonads and spawning of larger eggs, which provides for a longer lifespan of larvae. The great number of age groups in the spawning part of this group compensates for a decrease in reproduction in years with unfavorable conditions.
机译:分析了不同栖息率和不同种群的种群在不同生长速度下生殖策略的差异。使用生物能方法,已经研究了这些群体之间的起源和差异。研究表明,调节卵的大小和重量的生物能机制导致在生长缓慢的鲈鱼组中强迫繁殖的策略的形成,这与以生长后期的鲈鱼为特征的快速生长的鲈鱼的繁殖策略不同。在性腺的相对重量较大时达到性成熟,并产卵较大的卵,从而延长了幼虫的寿命。该群体产卵部分的年龄组数量众多,可以弥补条件不利的年份中繁殖能力的下降。

著录项

  • 来源
    《Biology Bulletin》 |2013年第1期|70-77|共8页
  • 作者单位

    Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071 Russia;

    Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071 Russia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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