Tonnes of dead fish mysteriously washed up in northern Japan japanherald.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from japanherald.com Daily Mail and Mail on Sunday newspapers.
Researchers are working on several theories to explain the mass deaths of fish found on the Japanese coast. Thy include the possibility that predators, such as amberjack, relentlessly hunted the migrating species, or that the fish died from rapid sea temperature fluctuations.
Officials are battling rumours that the incidents are connected to the Fukushima Daiichi nuclear power plant, which began releasing treated wastewater three months ago.