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The octopus fishery is one of the most important fisheries in the Gulf of México, particularly in theCampeche Bank. By 1980, the octopus yields appeared to be stabilized at approximately 8,000 t peryear, and the catches were almost completely composed ofOctopus maya. After a regime shift, thecatches increased, averaging 19,000 t per year ofO. mayaand 6,500 t ofO. vulgarisover the last twodecades. In this contribution, it is evidenced that the increases in the annual yields ofO. mayasincethe 1990s, which reflect the changes in biomass, are related to climate change. The warming trendand the increase in irradiance after 1980 favoured both growth and individual robustness, which, inaddition to the significant decreases in the main predators, suggest a positive effect on the survivaland recruitment of the octopus stock

Palabras clave: Regime shift; Warming period; Octopus maya; Individual robustness; Yield increases Gulf of Mexico

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