The maritime connections documented at Loch Borralie — through both the DNA evidence and the broader archaeological context of northwest Scottish prehistory — place the discovery within a concept that some archaeologists have begun to develop under the label of the Atlantic Iron Age: the idea that the coastal communities stretching along the Atlantic facade of Europe, from Morocco to Scotland and across to Ireland, shared cultural connections, trade routes, and social practices that crossed the open ocean as readily as most people today might cross a country.

Evidence for Atlantic connectivity in the Iron Age comes from multiple directions.

The distribution of specific artifact types — distinctive forms of metalwork, ceramics, and other objects — follows maritime rather than overland routes in many cases, with the same or closely related forms appearing on the coasts of Britain, Ireland, Brittany, Iberia, and other Atlantic regions.

Isotope evidence from human remains at some Iron Age coastal sites has identified individuals who grew up in one part of the Atlantic world and were buried in another, suggesting significant individual mobility across these maritime networks.

The DNA evidence from Loch Borralie, while documenting connections primarily within Scotland rather than across the wider Atlantic world, fits within this broader picture of maritime connectivity in Iron Age coastal communities.