London (CNN) — If you ate fish for dinner last night, there's a 50% chance it was not caught in the wild.
Aquaculture — the farming of fish and sea creatures under controlled conditions — is the fastest growing area of animal food production and now accounts for around half the world's consumed seafood.
According to the United Nation's Food and Agricultural Organization (FAO), the fish farming industry increased on average at an annual rate of 6.6% between 1970 and 2008.
Dr Matthias Halwart, senior aquatic officer at the FAO, told CNN that globally we're eating more fish than ever before.
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