在中世纪和中世纪后的奥斯陆追踪600年的远距离大西洋鱼贸易,使用稳定的同位素和古代DNA
Lourdes Martínez-García1, Angélica Pulido1,2, Giada Ferrari1
1Department of Biosciences, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Oslo NO-0371, Norway.
Proceedings. Biological sciences
|November 26, 2024
概括
古老的DNA和稳定的同位素显示,中世纪的奥斯陆从11世纪开始,从包括挪威北部和冰岛在内的遥远水域利用大西洋鱼. 这表明北欧的早期远距离渔业和贸易网络.
科学领域:
- 海洋考古学 海洋考古学
- 古遗传学是一种古遗传学.
- 同位素地质化学 同位素地质化学
背景情况:
- 从历史上看,海洋资源一直支持北欧的沿海社区.
- 了解历史海洋资源的起源揭示了渔业实践和贸易网络.
研究的目的:
- 为了调查考古学鱼遗骸的地理起源,在公元11世纪至17世纪的奥斯陆.
- 为了重建大西洋鱼种群开发和贸易的时间表.
主要方法:
- 古代DNA (aDNA) 分析以确定鱼种群起源.
- 稳定同位素分析 (δ13C, δ15N, δ2H, δ34S) 以推断环境条件和饮食.
- 遗传和同位素数据的整合.
主要成果:
- 遗传证据显示,大西洋鱼来自不同的种群,包括挪威北部和冰岛等遥远的种群.
- 奥斯陆的长途鱼贸易从11世纪开始就显而易见,在其他欧洲地区的类似趋势之前.
- 显著的同位素特征 (δ13C) 与基因分配的种群相关,证实了来自不同环境的鱼的开发.
结论:
- 奥斯陆比以前想象的更早地从事长途鱼贸易,突出了中世纪复杂的海上网络.
- 结合aDNA和稳定同位素分析是了解历史渔业和资源开发的强大方法.
- 这项研究为特定大西洋鱼种群的开发时间表提供了新的见解.
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