A big fish
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Day in the life of a Turkish fishmonger

11 July 2012 Last updated at 11:35 BST

In recent years, Turkey's fish production has increased to almost 600,000 tonnes a year.

Alongside the container ships on the Bosphorus, fishmongers sell everything from swordfish to sardines.

Howard Johnson spent the day with fishmonger Hasan Kayhan to find out just how he makes a living.