24 May 2016 at 1:32 GMT
Fishermen are paying the price as Asia's superpowers vie for control of the resource-rich waters and islands of the East China Sea. The stock of almost all seafood in the area was becoming increasingly scarce as China and Japan asserted sovereignty over a group of eight uninhabited islands — known as Senkaku in Japanese and Diaoyu in Chinese — and their oil riches, fishermen told CNBC. Zhang Yuxiang from the oil town of Dongying on the mainland's northern coast has been working the East China Sea for the past three decades. "The water quality doesn't even compare to 30 years ago," he said. "Back then, you would fill your hold with big, fresh crabs in one night. But now those crabs have disappeared."
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