Pulsation rate of coral Xenia umbellata in a aquarium experiment@en

Pulsations were recorded every 7 days from one colony per tank on three polyps. A pulsation was defined as a full contraction cycle. Counts were taken for 30 seconds in the morning using a tally counter, with water flow pumps off to prevent interference. To minimise bias, the same observer recorded all counts. Pulsation rate (pulsations per minute) was calculated by doubling the count and averaging three replicates per colony. Xenia umbellata originates from the Red Sea.每7天对每个饲养缸内的1个珊瑚群落 (colony) 中的3个珊瑚虫体 (polyp) 开展搏动记录。搏动被定义为一次完整的收缩周期。每日清晨使用计数计数器 (tally counter) 进行30秒的计数作业，期间关闭水流泵以消除干扰。为尽可能降低观测偏差，所有计数工作均由同一观测者完成。搏动速率 (单位：次/分钟) 的计算方式为：将单次30秒的计数结果乘以2，再对每个珊瑚群落的3次重复计数结果求取平均值。伞形肉芝软珊瑚 (Xenia umbellata) 原产于红海。