Contributors: Universitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona (UAB); Max Planck Institute for Geoanthropology = Max-Planck-Institut für Geoanthropologie (MPIG); Universidad de Cantabria Santander = University of Cantabria Spain = Université de Cantabrie Espagne (UC / UniCan); Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH); Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC)-Nantes Université - UFR Histoire, Histoire de l'Art et Archéologie (Nantes Univ - UFR HHAA); Nantes Université - pôle Humanités; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ); The Arctic University of Norway Tromsø, Norway (UiT); The University of Queensland (UQ All campuses : Brisbane, Dutton Park Gatton, Herston, St Lucia and other locations ); Universitat Autonoma de Barcelona; Spanish Ministry of Economy and Competitiveness HAR2016-75605-R, HAR2017-86262-P; MINECO; Spanish Ministry of Science and Innovation PID2021-124059NB-I00, PID2021-124589NA-I00; Alexander von Humboldt Foundation thought a Humboldt Research Fellowship; EarlyFoods (Evolution and impact of early food production systems) 2021_SGR_00527; Basque Country Postdoctoral Programme POS_2020_2_0032; University of La Rioja through a posdoctoral grant; Catalonia Postdoctoral Programme through a Beatriu de Pinos fellowship 2020 BP 00240; European Union HEU-101064225-NEARCOAST; University of Cantabria CVE:2019-8461; ICTA-UAB "Maria de Maeztu'' Programme for Units of Excellence of the Spanish Ministry of Science and Innovation CEX2019-000940-M; Max Planck Society
نبذة مختصرة : International audience ; Over the last few decades, research has significantly enhanced our understanding of the role played by shellfish in human subsistence during the Mesolithic period along the Atlantic coast of Europe. Instrumental to this advance has been the analysis of stable oxygen isotope measurements (delta 18O) from mollusc shells, which offers valuable insights into the seasonality of shellfish exploitation. The delta 18O values serve as reliable indicators of past seasonal seawater temperature variations experienced by the molluscs, enabling us to accurately determine the time of year when past humans collected them. Recent studies using this approach have successfully identified seasonal exploitation patterns of the topshell Phorcus lineatus (da Costa, 1778) in Atlantic Europe. However, uncertainties remain regarding the exploitation schedule of Patella depressa Pennant 1777, one of the most abundantly collected species in Mesolithic sites. Here we used shell delta 18O values of P. depressa from the Mesolithic sites of El Mazo (Northern Iberia) to determine its seasonality of exploitation. Our study reveals that P. depressa was prevalently exploited during colder months. Modern specimens of the same limpet species were also collected during two annual cycles to assess potential seasonal changes in meat yield return. Results obtained has profound implications for better understanding how last coastal foragers managed available littoral resources throughout the year.
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