Tropical marine fish farming with diadromous fish. An alternative to adaptation to climate change in Mexico

Abstract

Given the strong evidence of the increase in the intensity of hurricanes and tropical storms due to anthropogenic global warming, that is, produced by man, it is expected that in the medium and long term this situation will be enhanced on the coastlines of Mexico. It is imperative, therefore, to define adaptation scenarios for marine fish farming that allow the cultivation of selected species in other environments with less risk of affectation. It is here that the option of sustainable use of diadromous fish, particularly quasi-catadromes, such as robalos (Centropomidae), which are species that grow in fresh water and spawn in the sea at points close to river mouths. Its tolerance to different salinity gradients allows its growth and the production of large-scale biomass in the marine, brackish, and freshwater environments. In this context, several of them, handling the required conditions of salinity in spawning, could be grown in fresh water, such as robalos, some croaker (Sciaenidae), horse mackerel (Carangidae) and snapper (Lutjanidae), in protected areas, land inside, with a lower risk of affectation due to extreme weather events, lower management and lower operating costs.

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