UPDATE: Well it looks like the early age estimates were off. The Alaska Department of Fish and Game have put the age of the fish at 64 years old.

A fisherman in Alaska caught a 40-pound shortraker fish that experts believe is 200 years old.

Here's more info from Eric Pfeiffer of Yahoo! News:

The Daily Sitka Sentinel reported that Henry Liebman of Seattle was deep-sea fishing off the coast of Alaska on June 21 when he hooked the record-setting shortraker fish from a depth of approximately 900 feet. “I knew it was abnormally big (but I) didn’t know it was a record until on the way back we looked in the Alaska guide book that was on the boat,” Liebman told the paper.

According to Yahoo!, shortraker fish are commonly sought fish in Alaska and live at depths of more than 2,500 feet.

Liebman says he plans to have the fish mounted.