Record of three non-native fish species from the Alvarado Lagoon, Veracruz, Mexico.
The proliferation of non-native species in the freshwater ecosystems of East Central Mexico is considered a primary threat to the integrity of local native community structure. However, a general understanding of consistent and predictable impacts of non-native species on native freshwater diversity is limited, in part, because of a lack of broad-scale studies including data from numerous localities across multiple drainages. In this study, we captured 85 neotropical fish belonging to nine species in the Alvarado Lagoon, Veracruz, southeast from the Gulf of Mexico. Of these, the presence of three non-native species was confirmed: the pantano cichlid Cincelichthys pearsei, the jaguar cichlid Parachromis managuensis and the vermiculated sailfin catfish Pterygoplichthys disjunctivus. The species settlement in the region is a consequence of aquaculture practices with food purpose and ornamental production.