在世界范围内牡蛎栖息地的调查中，这种多肉多汁的软体类动物正以飞速消亡，与此同时由于病害与过量的捕捉85%的(牡蛎所赖以栖息的)群礁也在消亡。
A survey of oyster habitats around the world has found that the succulent mollusks are disappearing fast and 85 percent of their reefs have been lost due to disease and over-harvesting.
中奥陶统一间房组沉积时期为区域性的海水变浅的开阔台地台内浅滩夹点礁沉积。
Yijianfang formation of Middle Ordovician sedimentary period is the open platform of regional seawater shoaling with platform-inter-shallow patch reef sedimentary.
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