On Wednesday, the ODWC posted a photo of the huge fish caught at Keystone Lake, Oklahoma, on Facebook.

The ODWC said it was caught by Grant Rader of Wichita, Kansas, and congratulated him on his “great catch.”

According to the ODWC, paddlefishare one of the most unique fish in Oklahoma and can live for up to 50 years. Paddlefish are distinguished by their extended snout, which is covered in electroreceptors that help them locate prey by sensing tiny electrical pulses generated by muscle contractions.

They feed by swimming through the water with their mouths open, enabling them to catch plankton.

Some specimens have been reported to weigh as much as 438lbs and reach over 7ft in length, according to the U.S. Fish and Wildlife Service (FWS).

Several states list them as endangered, threatened, or as a species of concern following commercial fishing in the 1900s.

Fisheries biologists launched efforts to re-introduce the fish in 1992, in areas where their numbers had dwindled. These efforts involved hatchery professionals raising young paddlefish and then releasing them in lakes.

Of the catch, the ODWC said: “We have a new world- and state-record paddlefish that was snagged at Keystone Lake on Tuesday, June 22. The beast weighed 164 pounds!”

The 26,000-acre Keystone Lake is located on the Arkansas River, around 15 miles west of Tulsa, Oklahoma. Hunting and fishing are regulated by state and federal laws, and people have to apply for a paddlefish permit before they can catch them in Oklahoma.

The ODWC went on: “Jeremiah Mefford, with Reel Good Time Guide Service, assisted Rader on his world-record fishing trip. Also present is former world- and state-record holder Corey Watters of Ochelata.”

Newsweek was unable to independently verify that the fish was a world record-breaking catch, and has contacted the ODWC for comment.

Watters’ previous record was 151.9lb, The Oklahoman reported in 2020. That particular fish measured just under 6ft in length, state officials said at the time.

Watters told Tulsa World of his 2020 catch: “This is really something. We’ll see how long I’ll have it in the books, but it’s neat to always have that recorded.”

Paddlefish are a long-lived species. American paddlefish are thought to have inhabited North America since the cretaceous period 65 million years ago.

There are also Chinese paddlefish, which can be found in Asia. This particular species can grow up to 9ft 10 inches in length.