Compound-specific carbon 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 carbon CSI-AA data. Nitrogen data are available in a related dataset.本研究于2018年至2021年间，对圣巴巴拉盆地沉积物捕集器中3种丰度最高的浮游有孔虫壳体的氨基酸化合物特异性稳定同位素（Compound-Specific Stable Isotopes of Amino Acids, CSI-AA）碳、氮同位素数据进行了测定，涉及物种分别为：泡抱球虫（Globigerina bulloides, d’Orbigny, 1826）、丰满新抱球虫（Neogloboquadrina incompta, Cifelli, 1961）以及五房转体虫（Turborotalita quinqueloba, Natland, 1938）。本研究将多批次沉积物捕集器样品合并为代表性样本。其中，丰满新抱球虫样本涵盖2019年5月至2021年10月的采集个体（n=4082）；五房转体虫样本涵盖2018年12月至2021年10月的采集个体（n=4964）。泡抱球虫种群数量充足，可划分为季节样本：2019年2月至7月的春夏季样本（n=5081），以及2018-2019、2019-2020、2020-2021年度10月至次年1月的秋冬季样本（n=3132）。本数据集的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CSI-AA碳同位素数据，氮同位素数据可在相关数据集获取。