KUALA LUMPUR, June 28 -- DNA from six critically endangered and endangered fish species has been found in fish maw products sold in stores across Malaysia and Singapore, according to a new study released last week.

Researchers identified DNA from the European eel and large yellow croaker - both listed as critically endangered by the International Union for Conservation of Nature (IUCN) - in samples taken from shops in both countries, The Straits Times reported today.

Eleven of those samples came from the European eel, despite the European Union banning its export in 2010.

"It's not that surprising that eel maw has been sold, because you can find the eels here," National University of Singapore (NUS) Assistant Professor Benjamin Wainwri...