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Pearl farming in China is mainly concentrated in the southeastern part of the country, with the waterways of Zhejiang province serving as the source for China's freshwater pearls. [1] Production has greatly increased through the 1990s and 2000s, with China, according to Times Online , producing 90% of pearl necklaces globally. [ 1 ]
More than a decade ago the freshwater pearl industry of China shifted production from the cockscomb pearl mussel to the triangle shell mussel (Hyriopsis cumingii). The triangle shell produced fewer pearls, accepting only 12–16 grafts per valve for a total production of 24 to 32 pearls, but produced pearls of better quality.
An ama pearl diver in Japan. Pearl hunting, also known as pearl fishing or pearling, is the activity of recovering or attempting to recover pearls from wild molluscs, usually oysters or mussels, in the sea or freshwater. Pearl hunting was prevalent in the Persian Gulf region and Japan for thousands of years.
Apart from Pearl, it also has many other local specialties: The textile industry is well developed. It has the largest hosiery industry in the country. Small hardware industry. Spring, small and medium-sized bearings. Rich in freshwater pearls, it has the largest pearl trading market in China and is known as the hometown of pearls.
According to World bank (1997), It also emit 60% of China's air and water pollution, endangering human health and posing a serious threat to agro-ecosystems. [26] Worse still, this industrial wastewater directly discharges into the water resource without any treatment and control.
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China's 2005 reported harvest was 32.4 million tonnes, more than 10 times that of the second-ranked nation, India, which reported 2.8 million tonnes. [2] China's 2005 reported catch of wild fish, caught in rivers, lakes, and the sea, was 17.1 million tonnes. This means that aquaculture accounts for nearly two-thirds of China's reported total ...
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