We have considered all the types of fish falling into the groups currently alive on Earth. That’s more than 28,000 species. Based on these criteria, here are the 10 biggest fish in the world.

A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented, scientists say. It unseated the previous record-holder, a 646lb (293kg) Mekong giant ...