around 120 species of fish. but fishermen have been selling just five of them, bringing them close to extinction. now, an award-winning chef is campaigning to cast the net wider. hola. >> eva, como estas? >> this is a beautiful restaurant. >> eric guerrero left mexico city's world famous restaurant to return home on a one-man mission to transform the fishing industry in veracruz. so this was caught this morning? >> si. >> and what type of fish is it? okay. i know it's not had the prettiest thing, but eric's not one to judge by appearances. >> okay. [ speaking spanish ]