What's the most widely eaten fish in the world?

I'm guessing tilapia since every average to below average restaurant in the country that serves fish seems to use this crap.

Yeah, you probably right. I forgot about all of those cans and packets sitting on store shelves.

No to all of the above

Krill

Half of the Earth's population is in the Far East that lives off of fish.

since mcdonalds filet o fish is cod, i'm going with cod

White perch aka sacalait aka crappie

goldfish

Google says Herring.