According to the Haruna tourist association, the lifting of the ban was postponed partly due to the aftereffects of the accident at Tokyo Electric Power Company Holdings Inc.'s Fukushima No. 1 nuclear power plant in March 2011. The lake was also not frozen enough for fishing because of warm winters.
The area where fishing is allowed covers about two-thirds of the entire lake. The thickness of the ice in some places reached up to 22 centimeters. Anglers rushed to the ice-covered lake as soon as the ban was lifted at 6:30 a.m. on the day.
Taking away wakasagi smelt was prohibited at one point, mainly due to the accident at the power plant, but anglers can now take the fish home.