Calanus helgolandicus weekly egg production time series between 1992-2021, using females from the Western English Channel site L4.

Ongoing zooplankton research at the Plymouth Marine Laboratory has established a time series of Calanus egg production using females from L4, a coastal station off Plymouth, UK. The time series was started in 1992. Weekly samples are collected, upon return to the laboratory female Calanus sp are picked from the live sample. Five replicates each containing five females are incubated in filtered seawater for 24 hours at ambient L4 temperature. The eggs produced are collected and counted. Data are presented as average egg production rate (EPR) per female per day.

英国普利茅斯海洋实验室开展的持续性浮游动物研究，构建了一套源自英国普利茅斯近海海岸观测站L4的雌性哲水蚤（Calanus）产卵量时间序列数据集。该数据集于1992年启动。每周采集样本，返回实验室后从鲜活样本中挑取雌性哲水蚤个体。设置五组重复实验，每组包含五只雌性哲水蚤，将其置于过滤海水中，在与L4观测站原位环境温度一致的条件下培养24小时。收集并计数产出的鱼卵，最终数据以每只雌性个体每日的平均产卵率（EPR）形式呈现。