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- Title
Temporal and spatial variability of prehistoric aquatic resource procurement: a case study from Mesolithic Northern Iberia.
- Authors
Milano, Stefania; Schöne, Bernd R.; González-Morales, Manuel R.; Gutiérrez-Zugasti, Igor
- Abstract
Prehistoric shell middens hold valuable evidence of past human–environment interactions. In this study, we used carbon (δ13C) and oxygen (δ18O) stable isotopes of Mytilus galloprovincialis shells excavated from El Perro, La Fragua and La Chora, three Mesolithic middens in Cantabria, Northern Spain, to examine hunter-gatherer subsistence strategies in terms of seasonality and collection areas. Furthermore, we used shell δ18O to reconstruct water temperature during the early Holocene. Stable isotopes reveal a shellfish harvesting diversification trend represented by the gradual establishment of the upper estuaries as new procurement areas and an increase of harvesting mobility in both coastal and in-land sites. These innovations in subsistence strategies during the Mesolithic coincided with major changes in the surrounding environment as attested by the water temperature reconstructions based on δ18O and backed by several global and regional records. Overall, our results show that shell δ13C and δ18O stable isotopes have an underexplored potential as provenance proxies which stimulates their application to the archaeological record to further understand prehistoric human resource procurement and diet.
- Subjects
SPAIN; MESOLITHIC Period; STABLE isotopes; MYTILUS galloprovincialis; WATER temperature; AQUATIC resources; PREHISTORIC peoples
- Publication
Scientific Reports, 2022, Vol 12, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-022-07239-8