RT Journal Article T1 Sensitivity of fishery resources to climate change in the warm-temperate Southwest Atlantic Ocean A1 Gianelli Maisonnave, Ignacio A1 Orlando, Luis A1 Cardoso, Luis Gustavo A1 Carranza, Alvar A1 Celentano, Eleonora A1 Correa, Patricia A1 Rosa, Andrés de la A1 Doño, Florencia A1 Haimovici, Manuel A1 Horta, Sebastián A1 Jaureguizar, Andrés Javier A1 Jorge Romero, Gabriela A1 Lercari, Diego A1 Martínez, Gastón A1 Pereyra, Inés A1 Silveira, Santiago A1 Vögler, Rodolfo A1 Defeo, Omar K1 Trait-based assessment K1 Climate change vulnerability K1 Ocean warming K1 Global change K1 South America AB Climate change impacts on fishery resources have been widely reported worldwide. Nevertheless, a knowledge gap remains for the warm-temperate Southwest Atlantic Ocean—a global warming hotspot that sustains important industrial and small-scale fisheries. By combining a trait-based framework and long-term landing records, we assessed species’ sensitivity to climate change and potential changes in the distribution of important fishery resources (n = 28; i.e., bony fishes, chondrichthyans, crustaceans, and mollusks) in Southern Brazil, Uruguay, and the northern shelf of Argentina. Most species showed moderate or high sensitivity, with mollusks (e.g., sedentary bivalves and snails) being the group with the highest sensitivity, followed by chondrichthyans. Bony fishes showed low and moderate sensitivities, while crustacean sensitivities were species-specific. The stock and/or conservation status overall contributed the most to higher sensitivity. Between 1989 and 2019, species with low and moderate sensitivity dominated regional landings, regardless of the jurisdiction analyzed. A considerable fraction of these landings consisted of species scoring high or very high on an indicator for potential to change their current distribution. These results suggest that although the bulk of past landings were from relatively climate-resilient species, future catches and even entire benthic fisheries may be jeopardized because (1) some exploited species showed high or very high sensitivities and (2) the increase in the relative representation of landings in species whose distribution may change. This paper provides novel results and insights relevant for fisheries management from a region where the effects of climate change have been overlooked, and which lacks a coordinated governance system for climate-resilient fisheries PB Springer YR 2023 FD 2023 LK http://hdl.handle.net/10347/30842 UL http://hdl.handle.net/10347/30842 LA eng NO Gianelli, I., Orlando, L., Cardoso, L.G. et al. Sensitivity of fishery resources to climate change in the warm-temperate Southwest Atlantic Ocean. Reg Environ Change 23, 49 (2023). https://doi.org/10.1007/s10113-023-02049-8 NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. I.G., O.D., and G.J. acknowledge the support provided by the Inter-American Institute for Global Change Research (Grant SGP-HW017). O.D., D.L., E.C., L.O., G.J., and A.R. thank the Comisión Sectorial de Investigación Científica (CSIC Grupos ID 32) for additional support. M.H. thanks for the support from the Brazilian National Scientific and Technological Research Council (CNPq, grant 307994/2020–1) DS Minerva RD 24 abr 2026