...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >The metabolic depression and revival of purple urchins (Strongylocentrotus purpuratus) in response to macroalgal availability
【24h】

The metabolic depression and revival of purple urchins (Strongylocentrotus purpuratus) in response to macroalgal availability

机译：紫色核心（strongylocentrotus purpuratus）响应于宏观政棒的代谢抑制和复兴

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

Organisms can reduce their metabolism and/or decrease energy allocation to reproduction in order to survive starvation during extended periods of food limitation. This is especially important for coastal rocky reefs where widespread kelp deforestation has become increasingly common in recent decades. This deforestation often results in the formation of urchin barrens that have high densities of herbivorous sea urchins and little macroalgae for them to consume. While it is known that these barrens can persist for years to decades, and it has been suggested that urchins can reduce their metabolisms and/or consume microalgae during these periods, the mechanisms that allow for such prolonged survival in adverse conditions, and if these are mechanisms are reversible are not entirely understood. Here, we provide experimental evidence to show that urchin metabolism and gonad mass both decrease significantly when the urchins are deprived of macroalgae, and that these urchins regain normal metabolic activity and gonad masses when access to this food resource is restored. Our results have important implications for consumers in other ecosystems where access to energetic resources is spatially or temporally variable and can point to new avenues of research to explain how organisms adjust their energetic needs to survive extended periods of starvation.
机译：生物可以减少它们的新陈代谢和/或降低能量分配以繁殖，以便在延长的食物限制期间存活饥饿。这对沿海岩石礁尤其重要的是近几十年来广泛的海带森林森林森林森林森林越来越普遍。这种砍伐森林常常导致细胞贫瘠的贫瘠贫瘠的细胞贫瘠的食草海胆和小型大型山谷的形成。虽然众所周知，这些贫瘠可能持续多年到几十年，并且已经提出了在这些时期期间可以减少它们的新陈代谢和/或消费微藻，这使得这种不良条件下的延长存活的机制，以及如果这些时期机制是可逆的，并不完全理解。在这里，我们提供实验证据表明，当核苷酸被剥夺大草原时，内核新陈代谢和Gonad肿块都会显着降低，并且当恢复到这种食物资源时，这些核素会重新获得正常的代谢活动和性质。我们的结果对消费者对其他生态系统具有重要意义，即在空间或时间变化，可以指出新的研究途径，以解释有机体如何调整他们的精力充沛需要延长饥饿的延长期。

著录项

相似文献

  • 外文文献
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