Mexican Fish Extinct in Wild Successfully Reintroduced 
By MARÍA VERZA MX Source: Associated Press 1/2/2022
MARÍA VERZA
Credit: The Chester Zoo via AP
There once was a small fish called “tequila splitfin” or “zoogoneticus tequila” that swam in a river in western Mexico, but disappeared in the 1990s. Scientists and residents, however, have achieved the return of a species extinct in nature — but conserved in captivity — to its native habitat.

Its success is now intertwined with the community’s identity and being touted internationally.
 

It began more than two decades ago in Teuchitlán, a town near the Tequila volcano. A half-dozen students, among them Omar Domínguez, began to worry about the little fish that fit in the palm of a hand and had only ever been seen in the Teuchitlán river. It had vanished from local waters, apparently due to pollution, human activities and the introduction of non-native species.

Domínguez, now a 47-year-old researcher at the University of Michoacán, says that then only the elderly remembered the fish called “gallito” or “little rooster” because of its orange tail.

 
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