RT Journal Article T1 Mollusc collection and Holocene palaeogeographical evolution in a southwestern iberian estuary: Statistical analysis of the early Holocene Cañada Honda shell midden (SW Spain) A1 Fernández Pérez, Livia A1 Ruiz Muñoz, Francisco A1 Gómez Álvarez, Gabriel A1 Muñoz Pichardo, Juan Manuel A1 Rodríguez Vidal, Joaquín A1 Cáceres Puro, Luis Miguel A1 Gómez Gutiérrez, Paula A1 Toscano Grande, Antonio A1 Arroyo Serrano, Marta A1 Romero Aguilar, Verónica AB The malacological analysis of the Cañada Honda shell midden (Tinto-Odiel estuary, SW Spain) has allowed anapproximation of the palaeo biodiversity of this sector during the Mesolithic. During this period, the progressivemarine transgression caused the flooding of this estuary, coinciding with an initial intensive capture of the bivalvesLutraria and Ruditapes decussatus in the northern and southern sector of this site, respectively. In a secondphase, Ruditapes decussatus was the main collected species in all sectors. This last period coincided with somediversification in catches, still dominated by Ruditapes decussatus but with significant proportions of Cerastodermaedule. This stage witnessed a progressive sedimentary filling of the estuary and the creation of marshes andbarrier islands. The almost total fragmentation of the specimens would imply that the surface of this shell middenwas exposed for a long time while in use. In addition, an occasional charring of some molluscs has been detected.The main molluscs of this site are also the most abundant in other later shell middens (~cal 5.2–4 kyr BP),indicating an important perpetuation of the collecting and/or eating habits in this environment. All the speciesdetermined in them are also currently found in this estuary and its surroundings, where they are also captured. PB Elsevier SN 1040-6182 YR 2023 FD 2023-02 LK https://hdl.handle.net/10272/22529 UL https://hdl.handle.net/10272/22529 LA eng NO Fernández, L., Ruiz, F., Gómez, G., Muñoz, J. M., Rodríguez Vidal, J., Cáceres, L. M., Gómez, P., Toscano, A., Arroyo, M., & Romero, V. (2023). Mollusc collection and Holocene palaeogeographical evolution in a southwestern iberian estuary: Statistical analysis of the early Holocene Cañada Honda shell midden (SW Spain). In Quaternary International (Vol. 658, pp. 24–35). Elsevier BV. https://doi.org/10.1016/j.quaint.2023.02.008 NO This work has been carried out through the following projects: a) DGYCIT project CTM 2006-06722/MAR; b) DGYCIT project CGL 2006-01412; and c) FEDER 2014–2020 project UHU-1260298. Other funds have come from Andalusian Government (groups HUM-132, RNM-238, and RNM-293). It is a contribution to the Research Center in Historical, Cultural and Natural Heritage (CIPHCN) of the University of Huelva. Valves and shells are deposited in the Laboratory of Paleontology and Applied Ecology of the University of Huelva. DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026