Takitaro is type of giant fish found in Yamagata prefecture’s Lake Otoriike. Takitaro said to reach 3 meters long.
The Takitaro appears in a number of stories throughout the 20th century. In 1917, for example, a pair of men are said to have captured a 1.5 meter (5 ft) long fish that was large enough to feed 20 floodgate construction workers for 4 days. In 1982, a group of mountain climbers above the lake observed a fish over 2 meters (6.5 ft) long in the clear water below. This sighting grabbed headlines nationwide.
Three years later, in 1985, a team of scientists went to the lake in search of the Takitaro. Sonar equipment revealed the presence of giant fish, and the scientists identified some smaller specimens as relatives of ancient salmon that likely became trapped in the lake when it was formed long ago. The true identity of the giant Takitaro, however, remains a mystery, but some believe it is a mutant descendant of these ancient fish.