As of 2012, the recognized world record for the largest sturgeon caught by man is a 1,360 pound fish caught in the Heilongjiang River in the town of Tongjiang. This was a Kaluga sturgeon, which is the largest variety of sturgeon.
Kaluga sturgeon are in danger of being eradicated due to over fishing. Chinese officials stated plans to artificially inseminate this type of large female fish and release them back into the wilds to boost the population.
The largest known white sturgeon ever caught was a 1,100 pound fish. Michael Snell of Salisbury, England caught the fish in the Fraser River in British Columbia. This sturgeon was over 12 feet long.