A giant freshwater stingray, which measured 4m from snout to tail, was caught and then released.
The previous record belonged to 293 kg soms. He was caught in Thailand in 2005.
The stingray, caught in Stung Treng province in northern Cambodia, was more than twice as heavy as the average lowland gorilla, experts say.
After examining the stingray, scientists determined that it was a female.She was nicknamed Borami, which means "full moon". Representatives of the species U. polylepis often reach impressive sizes and are considered one of the largest freshwater fish, but zoologists have never come across such large specimens before.
According to experts from Wonders of the Mekong, the individual caught by a Cambodian fisherman is the largest freshwater fish in the history of scientific observations.
After the inspection, the researchers released Borami forwill and fixed an acoustic mark at the base of her tail. This will allow tracking the movement of fish using a network of receivers installed along the banks of the river.
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