本資料集為彰化縣芳苑鄉潮間帶蟹類調查資料，旨在調查並持續觀測芳苑潮間帶於海空步道建設後與紅樹林移除後的蟹類組成與底質變化。蟹類調查頻率為每季一次，調查月份為3、6、9、12月。調查樣點沿用過往國家重要濕地保育行動計劃中蟹類調查之樣點，並於紅樹林移除後區域設置一調查樣點。於計畫第二年開始增設海空步道下樣點與紅樹林樣點；另於計劃第三年開始於後港溪出海口與漢寶濕地各增設三個樣點，調查月份為1、4、7、10月。This dataset contains crab survey data from the intertidal zone in Fangyuan, Changhua. The purpose of this survey is to investigate changes in the crab composition and soil properties following the construction of the Fangyuan Wetland Trail and the removal of mangroves. The crab survey are conducted every three months in March, June, September, and December. The sampling sites from the Conservation Project of Wetlands of National Importance are continued to utilize, with a new sampling site in the mangrove removal area. Starting from the second year, an additional sites under the Fangyuan Wetland Trail and another within the mangroves are established. Starting from October of the third year, three additional sites are established both at Hougang River Mouth and Hanbao Wetland, with surveys conducted in January, April, July, and October.