Nitrogen and carbon stable isotope data sets are commonly used to assess complex population to ecosystem responses to natural or anthropogenic changes at regional to global spatial scales, and monthly to decadal timescales. Measured in the tissues of consumers, nitrogen isotopes (δ15 N) are primarily used to estimate trophic position while carbon isotopes (δ13 C) describe habitat associations and feeding pathways. Models of both δ15 N and δ13 C values and their associated variance can be used to estimate likely dietary contributions and niche width and provide inferences about consumer movement and migration. Stable isotope data have added utility when used in combination with other empirical data sets (e.g., stomach content, movement tracking, bioregionalization, contaminant, or fisheries data) and are increasingly relied upon in food web and ecosystem models. While numerous regional studies publish tables of mean δ15 N and δ13 C values, limited individual records have been made available for wider use. Such a deficiency has impeded full utility of the data which otherwise would facilitate identification of macroscale patterns. The data provided here consist of 4,498 records of individuals of three tuna species, Thunnus alalunga, T. obesus, and T. albacares sampled from all major ocean basins from 2000 to 2015. For each individual tuna we provide a record of the following: species name, sampling date, sampling location, tuna length, muscle bulk and baseline corrected δ15 N values, and muscle bulk and, where available, lipid corrected δ13 C values. We provide these individual records to support comparative studies and more robust modelling projects seeking to improve understanding of complex marine ecosystem dynamics and their responses to a changing environment. There are no copyright restrictions for research and/or teaching purposes. Users are requested to acknowledge their use of the data in publications, research proposals, websites and other outlets following the citation instructions in Class III, Section B.

中文翻译：

---

金枪鱼氮和碳稳定同位素的全球数据集

氮和碳稳定同位素数据集通常用于评估复杂种群对生态系统对区域到全球空间尺度以及每月到十年时间尺度的自然或人为变化的响应。在消费者的组织中测量，氮同位素 (δ15 N) 主要用于估计营养位置，而碳同位素 (δ13 C) 描述栖息地关联和摄食途径。δ15 N 和 δ13 C 值及其相关方差的模型可用于估计可能的饮食贡献和生态位宽度，并提供有关消费者移动和迁移的推断。当与其他经验数据集（例如，胃内容物、运动跟踪、生物区域化、污染物、或渔业数据），并且越来越依赖于食物网和生态系统模型。虽然许多区域研究发布了平均 δ15 N 和 δ13 C 值的表格，但已提供有限的个人记录以供更广泛使用。这种缺陷阻碍了数据的充分利用，否则将有助于识别宏观模式。此处提供的数据包括 2000 年至 2015 年从所有主要海洋盆地采样的三种金枪鱼物种（Thunnus alalunga、T. obesus 和 T. albacares）的 4,498 条记录。对于每条金枪鱼，我们提供以下记录：名称、采样日期、采样位置、金枪鱼长度、肌肉体积和基线校正的 δ15 N 值，以及肌肉体积和脂质校正的 δ13 C 值（如果有）。我们提供这些单独的记录以支持比较研究和更强大的建模项目，旨在提高对复杂海洋生态系统动态及其对不断变化的环境的反应的理解。研究和/或教学目的没有版权限制。要求用户按照 III 类 B 节中的引用说明，确认他们在出版物、研究计划、网站和其他渠道中使用数据。