Female Antarctic fur seal isotope data from Marion Island

To quantify the dietary preferences and trophic level consumption of post-breeding adult female Antarctic fur seals (Arctocephalus gazella), we analysed the carbon:nitrogen composition of whiskers and blood samples from the females. Females were captured towards the end of the lactation period (March/April) and whiskers and a blood sample were collected at this time. Females were generally recaptured just prior to or after giving birth the following season and a further whisker and blood sample were collected at this time. Metadata for each individual include:Site, GLS ID, year, flipper tag number, season, sampling date, tissue type, whisker segment number, cumulative length along whisker of the segment, d15N, d13C, percentage N, percentage C and CN ratio.

为量化繁殖后成年雌性南极海狗（Arctocephalus gazella）的饮食偏好与营养级摄食水平，我们分析了该群体雌性个体触须与血液样本的碳氮组成。研究对象于哺乳期末期（3月/4月）被捕获，并于此时采集触须与血液样本。通常会在次年分娩前后对这些雌性个体进行重捕，并于同期再次采集触须与血液样本。每个个体的元数据包含：采样地点、地理定位光传感器（GLS）编号、年份、鳍肢标签编号、采样季节、采样日期、组织类型、触须节段编号、该节段沿触须的累积长度、δ15N、δ13C、氮百分比、碳百分比以及碳氮比。