[Abstract] This paper report out the growth characteristics of Retusa boenesis. Deal with the measure and obervation on the Retusa boenesis made during the period from 2001.7 and 2002.3 to 2002.5 in mud shoal at Daishan Zhejiang.Then know Restua bonenesis’s growth period is one year , during March to May , it grow fastest. On March , the most of Retusa boenensis is 7mm high, on May, the shell height grow to 11mm average.During this period , its average ……[Keywords] Retusa boenesis Growth
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