RT Journal Article T1 A horizon scan exercise for aquatic invasive alien species in Iberian inland waters A1 Oficialdegui, Francisco A1 Zamora-Marín, José A1 Guareschi, Simone A1 Anastácio, Pedro A1 García-Murillo, Pablo A1 Ribeiro, Filipe A1 Miranda, Rafael A1 Cobo, Fernando A1 Gallardo, Belinda A1 García-Berthou, Emili A1 Boix, Dani A1 Arias, Andrés A1 Cuesta, Jose A1 Medina, Leopoldo A1 Almeida, David A1 Banha, Filipe A1 Barca, Sandra A1 Biurrun, Idoia A1 Cabezas, Pilar A1 Calero, Sara A1 Campos, Juan A1 Capdevila-Argüelles, Laura A1 Capinha, César A1 Casals, Frederic A1 Clavero, Miguel A1 Encarnação, João A1 Fernández-Delgado, Carlos A1 Franco, Javier A1 Guillén, Antonio A1 Hermoso, Virgilio A1 Machordom, Annie A1 Martelo, Joana A1 Mellado-Díaz, Andrés A1 Morcillo Alonso, Felipe A1 Oscoz, Javier A1 Perdices, Anabel A1 Pou-Rovira, Quim A1 Rodríguez-Merino, Argantonio A1 Ros, Macarena A1 Ruiz-Navarro, Ana A1 Sánchez, Marta A1 Sánchez-Fernández, David A1 Sánchez-González, Jorge A1 Sánchez-Gullón, Enrique A1 Teodósio, M. Alexandra A1 Torralva, Mar A1 Vieira-Lanero, Rufino A1 Oliva-Paterna, Francisco AB As the number of introduced species keeps increasing unabatedly, identifying and prioritising current and potential Invasive Alien Species (IAS) has become essential to manage them. Horizon Scanning (HS), defined as an exploration of potential threats, is considered a fundamental component of IAS management. By combining scientific knowledge on taxa with expert opinion, we identified the most relevant aquatic IAS in the Iberian Peninsula, i.e., those with the greatest geographic extent (or probability of introduction), severe ecological, economic and human health impacts, greatest difficulty and acceptability of management. We highlighted the 126 most relevant IAS already present in Iberian inland waters (i.e., Concern list) and 89 with a high probability of being introduced in the near future (i.e., Alert list), of which 24 and 10 IAS, respectively, were considered as a management priority after receiving the highest scores in the expert assessment (i.e., top-ranked IAS). In both lists, aquatic IAS belonging to the four thematic groups (plants, freshwater invertebrates, estuarine invertebrates, and vertebrates) were identified as having been introduced through various pathways from different regions of the world and classified according to their main functional feeding groups. Also, the latest update of the list of IAS of Union concern pursuant to Regulation (EU) No 1143/2014 includes only 12 top-ranked IAS identified for the Iberian Peninsula, while the national lists incorporate the vast majority of them. This fact underlines the great importance of taxa prioritisation exercises at biogeographical scales as a step prior to risk analyses and their inclusion in national lists. This HS provides a robust assessment and a cost-effective strategy for decision-makers and stakeholders to prioritise the use of limited resources for IAS prevention and management. Although applied at a transnational level in a European biodiversity hotspot, this approach is designed for potential application at any geographical or administrative scale, including the continental one. PB Elsevier SN 0048-9697 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/93937 UL https://hdl.handle.net/20.500.14352/93937 LA eng NO Oficialdegui, Francisco J., et al. «A Horizon Scan Exercise for Aquatic Invasive Alien Species in Iberian Inland Waters». Science of The Total Environment, vol. 869, abril de 2023, p. 161798. https://doi.org/10.1016/j.scitotenv.2023.161798. NO FundingThis research was supported by the LIFE INVASAQUA project (Aquatic In- vasive Alien Species of Freshwater and Estuarine Systems: Awareness and Prevention in the Iberian Peninsula) (LIFE17 GIE/ES/000515) funded by the EU LIFE Program. The Fundación Biodiversidad (Government of Spain) and the Government of Navarre financially support specific actions into the LIFE INVASAQUA. F.R. is supported by Foundation for Science and Technology through an individual contract (CEEC/0482/2020). J.E. has a Ph.D. scholarship (SFRH/BD/140556/2018) funded by FCT, Portugal. F.B. is supported by Foundation for Science and Technology through an individual contract (CEEC/01896/2021). NO European Commission NO Fundación Biodiversidad NO Nafarroako Gobernua NO Fundación para la Ciencia y la Tecnología NO Foundation for Science and Technology (Portugal) DS Docta Complutense RD 8 abr 2025