Abstract Hamanaka 2 is a multi-phase coastal site in Rebun Island with a ~ 3000-year occupation sequence extending from the final-stage Jōmon and Okhotsk to the Ainu Culture period (1050 BCE-1850 CE). To examine long-term trends in food processing at the site, we collected 66 ceramic sherds across six distinct cultural layers from the Final Jōmon to the Late Okhotsk period for lipid residue analysis. Given the site's beachfront location in an open bay, with ready access to abundant maritime resources, we predicted that the pottery would consistently have been used to process aquatic resources throughout all cultural periods. Though aquatic lipids dominated across the site sequence, the history of pottery use at the site proved more complex. Evidence of plant processing was found in all cultural phases, and from the Epi-Jōmon/Late Final Jōmon transition onwards 30% of the vessels were being used to process mixed dishes that combined both marine and terrestrial resources. By the start of the Okhotsk phase, separate sets of resources were being processed in different pots, suggesting functional differentiation in the use of pottery, and the rise of new kinds of cuisine – including the processing of millet. We tentatively explain these results as a consequence of the growing incorporation of Rebun Island into wider regional trade and interaction networks, which brought new kinds of resources and different social dynamics to Northern Hokkaido in the Late Holocene.

中文翻译：

---

日本北部晚新世海上觅食者在陶器使用中功能差异的增加证据

摘要Hamanaka 2是礼文岛的一个多阶段沿海地区，占领期约为3000年，从末代约蒙和鄂霍次克州一直到阿伊努文化时期（公元前1050年至1850年）。为了考察该地区食品加工的长期趋势，我们从最后的宗门到鄂霍次克晚期的六个不同文化层收集了66个陶瓷盘，用于脂质残留分析。鉴于该地点位于开阔海湾的海滨位置，可以轻松获取丰富的海洋资源，因此我们预测，在整个文化时期，该陶器将一直用于处理水生资源。尽管水脂在整个位点序列中占主导地位，但事实证明，在该位点使用陶器的历史更为复杂。在所有文化阶段都发现了植物加工的证据，从Epi-Jōmon/ Late FinalJōmon过渡开始，有30％的船只被用于处理结合了海洋和陆地资源的混合菜肴。在鄂霍次克州阶段开始时，在不同的花盆中加工了单独的资源集，这表明在陶器使用方面的功能差异以及新型美食的兴起-包括小米的加工。我们暂定解释这些结果是由于礼文岛日益融入更广泛的区域贸易和互动网络的结果，这为全新世晚期的北海道北部带来了新的资源和不同的社会动力。分别在不同的花盆中加工了不同的资源集，这表明在陶器使用方面的功能差异以及新型美食的兴起-包括小米的加工。我们暂定解释这些结果是由于礼文岛日益融入更广泛的区域贸易和互动网络的结果，这为全新世晚期的北海道北部带来了新的资源和不同的社会动力。分别在不同的花盆中加工了不同的资源集，这表明在陶器使用方面的功能差异以及新型美食的兴起-包括小米的加工。我们暂定解释这些结果是由于礼文岛日益融入更广泛的区域贸易和互动网络的结果，这为全新世晚期的北海道北部带来了新的资源和不同的社会动力。