646-Pound Catfish Netted in Thailand

Fishermen in northern Thailand have netted a fish as big as a grizzly bear, a 646-pound Mekong giant catfish, the heaviest recorded since Thai officials started keeping records in 1981. The behemoth was caught in the Mekong River and may be the largest freshwater fish ever found.

From the Science Blog:

"It's amazing to think that giants like this still swim in some of the world's rivers," said Dr. Zeb Hogan, a WWF Conservation Science fellow and leader of a new World Wildlife Fund (WWF) and National Geographic Society project to identify and study all freshwater fish over 6 feet long or 200 pounds. "We've now confirmed now that this catfish is the current record holder, an astonishing find."" ...
"Local environmentalists and government officials negotiated to release the record-breaking animal so it could continue its spawning migration in the far north of Thailand, near the borders of Thailand, Laos, Myanmar and China - also known as the "Golden Triangle"). But the fish, an adult male, later died.
The species is declining, which fishermen in the region blame on upstream dams and environmental deterioration." ...
"The Mekong giant catfish is Southeast Asia's largest and rarest fish and the focus of Dr. Hogan's project along with about two-dozen other species around the world such as the giant freshwater stingray, the infamous dog-eating catfish, the dinosaur-like arapaima, and the Chinese paddlefish - all of which remain contenders for the title of the world's largest fish." ...
"The Mekong River Basin is home to more species of massive fish than any river on Earth. It is also the most productive fishery in the world, generating USD 1.7 billion each year. Fish from the Mekong are the primary source of protein for the 73 million people that live along the river."