Due to the marine reservoir effect, radiocarbon dates of marine samples require a correction. Marine reservoir effects, however, may vary among different marine species within a given body of water. Factors such as diet, feeding depth and migratory behaviour all affect the ¹⁴C date of a marine organism. Moreover, there is often significant variation within single marine species. Whilst the careful consideration of the ΔR values of a single marine species in a given location is important, so too is the full range of ΔR values within an ecosystem. This paper illustrates this point, using a sample pairing method to estimate the reservoir effects in 17 marine samples, of eight different species, from the archaeological site of Ekven (Eastern Chukotka, Siberia). An OxCal model is used to assess the strength of these estimates. The marine reservoir effects of samples passing the model range from ΔR (Marine20) = 136 ± 41–ΔR = 460 ± 40. Marine reservoir effect estimates of these samples and other published samples are used to explore variability in the wider Bering Strait region. The archaeological implications of this variability are also discussed. The calibrating of ¹⁴C dates from human bone collagen, for example, could be improved by applying a dietary relevant marine reservoir effect correction. For humans from the site of Ekven, a ΔR (Marine20) correction of 289 ± 124 years or reservoir age correction of 842 ± 123 years is suggested.

由于海洋储层效应，海洋样品的放射性碳日期需要校正。然而，海洋水库效应可能因给定水体中的不同海洋物种而异。饮食、摄食深度和洄游行为等因素都会影响海洋生物的^{14 C 日期。}此外，单一海洋物种中通常存在显着差异。虽然仔细考虑给定位置单个海洋物种的ΔR值很重要，但ΔR的全部范围也很重要生态系统内的价值。本文说明了这一点，使用样本配对方法来估计来自 Ekven（东楚科奇，西伯利亚）考古遗址的 8 个不同物种的 17 个海洋样本的储层效应。OxCal 模型用于评估这些估计的强度。通过模型的样本的海洋储层效应范围为 Δ R (Marine20) = 136 ± 41–Δ R  = 460 ± 40。这些样本和其他已发表样本的海洋储层效应估计用于探索更广泛的白令海峡地区的变异性. 还讨论了这种可变性的考古意义。校准¹⁴例如，来自人骨胶原蛋白的 C 日期可以通过应用与饮食相关的海洋储层效应校正来改进。对于来自 Ekven 现场的人类，建议进行 289 ± 124 年的ΔR (Marine20) 校正或 842 ± 123 年的水库年龄校正。