Compound-specific nitrogen stable isotopes of amino acids in planktic foraminifera from Santa Barbara Basin sediment traps from 2018 to 2021

We measured carbon and nitrogen compound-specific stable isotopes of amino acids (CSI-AA) in the shells the three most abundant species of planktic foraminifera from Santa Barbara Basin sediment traps from 2018 to 2021: Globigerina bulloides (d’Orbigny, 1826), Neogloboquadrina incompta (Cifelli, 1961), and Turborotalita quinqueloba (Natland, 1938). Multiple sediment trap collections were combined to constitute representative samples. The N. incompta sample included individuals from sediment trap collections from May 2019 to October 2021 (n=4082). The T. quinqueloba sample included individuals from December 2018 to October 2021 (n=4964). G. bulloides was sufficiently abundant to split into seasonal samples: spring/summer from February 2019 to July 2019 (n=5081) and fall/winter from October to January in years 2018-2019, 2019-2020, 2020-2021 (n=3132). The collection of these data were supported by NSF OCE. This dataset includes only the nitrogen CSI-AA data. Carbon data are available in a related dataset.本数据集于2018至2021年间，对采自圣巴巴拉盆地沉积物捕集器的3种优势浮游有孔虫壳体中的氨基酸化合物特异性稳定同位素（Compound-specific Stable Isotopes of Amino Acids, CSI-AA）进行了测定，所涉物种包括：布氏球室虫（*Globigerina bulloides*, d’Orbigny, 1826）、富新抱球虫（*Neogloboquadrina incompta*, Cifelli, 1961）以及五叶转体虫（*Turborotalita quinqueloba*, Natland, 1938）。将多批次沉积物捕集器样品合并以构建具有代表性的分析样本。其中，富新抱球虫样本涵盖2019年5月至2021年10月的捕集个体，共计4082枚（n=4082）；五叶转体虫样本涵盖2018年12月至2021年10月的捕集个体，共计4964枚（n=4964）。布氏球室虫样本量充足，可按季节划分为两组：2019年2月至7月的春夏季组（n=5081），以及2018-2019、2019-2020、2020-2021年度10月至次年1月的秋冬季组（n=3132）。本数据采集工作由美国国家科学基金会海洋科学部（NSF OCE）资助。本数据集仅包含氨基酸化合物特异性稳定同位素的氮同位素数据，碳同位素数据可从关联数据集中获取。