Li Chunbo, Shen Chenchen, Feng Guangpeng, Huang Xiaorong, Li Xincang
East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China.
College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 200090, China.
Animals (Basel). 2022 Apr 3;12(7):918. doi: 10.3390/ani12070918.
A shelter is a good habitat for aquatic organisms, which could aid in avoiding cannibalism and facilitate predation. Chinese Mitten Crab () is an important aquaculture species with troglodytism and nocturnal habit. To clarify the preference for shelters at different developmental stages of , different shelters (mud, sand, grass and rocks) were selected for comparison. These results indicated that juvenile crabs had a significant preference for grass; button-sized crabs preferred to hide in mud; and the favorite shelters for parent crabs were rocks, followed by mud. in three stages all showed concealing behavior. The concealing behavior of juvenile crabs was the most significant, followed by button-sized and parent crabs. Additionally, held a low hiding rate at night but a high hiding rate during the daytime due to nocturnal habits. These findings will help to better understand the habits of and provide a reference for resource restoration, habitat construction and the restoration of .
庇护所是水生生物的良好栖息地，有助于避免同类相食并便于捕食。中华绒螯蟹是一种具有穴居习性和夜行性的重要水产养殖物种。为了阐明中华绒螯蟹在不同发育阶段对庇护所的偏好，选择了不同的庇护所（泥土、沙子、水草和岩石）进行比较。结果表明，幼蟹对水草有显著偏好；纽扣大小的蟹更喜欢藏在泥土中；亲蟹最喜欢的庇护所是岩石，其次是泥土。三个阶段的中华绒螯蟹均表现出隐藏行为。幼蟹的隐藏行为最为显著，其次是纽扣大小的蟹和亲蟹。此外，由于夜行性习惯，中华绒螯蟹夜间隐藏率低但白天隐藏率高。这些发现将有助于更好地了解中华绒螯蟹的习性，并为资源恢复、栖息地建设和中华绒螯蟹种群恢复提供参考。
