Zhongsha Islands territory claimed by People's Republic of China
The Zhongsha Islands is a Chinese term for a collection of two skerries, many entirely submerged banks, seamounts, and shoals in the South China Sea. There are in fact, no islands in the Macclesfield Bank, the main part of Zhongsha. The Scarborough Shoal, which consists of two skerries, is not contiguous with  the Macclesfield Bank but Chinese sources treat them as one chain of geographical features. The whole of the region is claimed by both the PRC and the ROC, and various bits of the eastern parts are claimed by the Philippines. No country has constant control of the whole region, and there are disputes - for example, see Scarborough Shoal standoff.
The PRC claim to administer the area as Zhongsha Daojiao Town, a town under Xisha District of the Sansha prefecture-level city in Hainan. It has one Village-level division, “Zhongsha Daojiao Residential Community”. However, the seat of this town and residential community is not within the Zhongsha Islets but, in Yongxing Town 
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Aquaculture research has been conducted on Walker Shoal.