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Título:

Sensitivity of fishery resources to climate change in the warm‑temperate Southwest Atlantic Ocean

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Autor:

Gianelli, Ignacio
Orlando, Luis
Cardoso, Luis Gustavo
Carranza Luaces, Alvar
Celentano, Eleonora
Correa Cardozo, Patricia
de la Rosa, Andrés
Doño, Florencia
Haimovici, Manuel
Horta Cunarro, Sebastián
Jaureguizar, Andrés Javier
Jorge Romero, Gabriela
Lercari Bernier, Diego
Martínez Rodríguez, Gastón Roberto
Pereyra Paola, María Inés
Silveira, Santiago
Vögler, Rodolfo
Defeo, Omar

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Artículo

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Palabras clave:

Trait-based assessmentarming
Climate change vulnerability
Ocean warming
Global change
South America

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Año de publicación:

2023

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Resumen:

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 smallscale 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 fshes, 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 fshes showed low and moderate sensitivities, while crustacean sensitivities were species-specifc. 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 efects of climate change have been overlooked, and which lacks a coordinated governance system for climate-resilient fisheries.

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Regional Environmental Change, 2023, 23(2): 49.

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Citación:

Gianelli, I, Orlando, L, Cardoso, L [y otros autores]. "Sensitivity of fishery resources to climate change in the warm‑temperate Southwest Atlantic Ocean". Regional Environmental Change. [en línea] 2023, 23(2): 49. 18 H. DOI: 10.1007/s10113-023-02049-8.

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1436-378X

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Licencia Creative Commons Atribución (CC - By 4.0)

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Publicaciones académicas y científicas
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10.1007.s10113-023-02049-8.pdf — 6.3 MB Adobe PDF
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