• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Memoirs of the Queensland Museum >Temperature control of burying and feeding activity ofHolothuria scabra (Echinodermata: Holothuroidea)
【24h】

Temperature control of burying and feeding activity ofHolothuria scabra (Echinodermata: Holothuroidea)

机译：温度控制Holothuria scabra（Echinodermata：Holothuroidea）的埋藏和觅食活动

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 relationships between temperature and burying and feeding behaviour of adultHolothuria scabra (sandfish) within a diel cycle was investigated. Animals were kept inaquaria in a constant light regime (14 h/10 h) and temperature was reduced 1°C each dayfrom 24°C to 17°C. Burial state and behaviour (e.g. burying, feeding, resting) was scoredat two-hourly intervals. Faeces were collected to investigate the relationship betweensediment ingestion and temperature. A distinct diel burying and feeding cycle wasexhibited, with most animals exposed and feeding between 13:00 and 20:00, and mostburied and inactive between 01:00 and 09:00. Buried periods increased with decreasingtemperature from 6.7 h per day at 24°C to 14.5 h per day at 17°C. Feeding activitydecreased from 9.8 h a day at 24°C to 0.8 h per day at 17°C. A Generalized Linear Modelshowed temperature had a significant correlation with both feeding (p <0.001) andburying behaviour (p = 0.002). Faeces production also showed a statistically significant (p<0.001) relationship with temperature, and decreased from a daily production of about40 g per day at 24°C to only 17 g per day at 17°C. Knowing when H. scabra will be buriedis thus crucial for conducting visual population surveys for conservation and fisheryresearch. Such surveys must have consistent diel and seasonal timing if results are to bemeaningfully compared. In the southern hemisphere this would be during summer(December to February) from midday to late afternoon.
机译：研究了温度和成年沙棘成年沙棘（沙鱼）的掩埋和摄食行为之间的关系。将动物以恒定光照（14 h / 10 h）饲养在水族馆中，并且每天将温度从24°C降低到17°C 1°C。每隔两个小时对埋葬状态和行为（例如埋葬，进食，休息）进行评分。收集粪便以研究沉积物摄入与温度之间的关系。展示了一个明显的diel埋葬和进食周期，大多数动物在13:00至20:00之间暴露并进食，而大多数动物在01:00至09:00之间处于静止和不活动状态。随着温度的降低，埋藏时间从24°C的每天6.7小时增加到17°C的每天14.5小时。摄食活动从每天24小时的9.8小时降低到每天17小时的0.8小时。广义线性模型显示的温度与进食（p <0.001）和掩埋行为（p = 0.002）均具有显着相关性。粪便的产生还显示出与温度的统计学显着关系（p <0.001），并且从24℃的每天约40g的每日产量减少到17℃的每天仅17g。因此，知道什么时候将埋葬H. scabra成为进行视觉种群调查以进行保护和渔业研究的关键。如果要对结果进行有意义的比较，此类调查必须具有一致的diel和季节性时间安排。在南半球，这将是夏季（12月至2月）的中午至下午。

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