en Ecology Ecology پژوهشي Orginal research papers <p><a name="OLE_LINK43"></a><a name="OLE_LINK42"><em>Eriocheir sinensis</em></a>, which is an important aquaculture species, belongs to the class Crustacea. To discuss the temperature tolerance of <em>E. sinensis</em>, the survival rates of juvenile crabs of<em> E. sinensis</em> were determined in this paper using a series of temperature settings (normal temperature, 25^&deg;C, 30^&deg;C, 32^&deg;C, 34^&deg;C, 35^&deg;C, 36^&deg;C, 38^&deg;C, 40 ^&deg;C). The results indicated that except the normal temperature level, mortality rate almost reached 100% at other temperatures. The time of death of all crabs at 30℃, 35℃, and 40℃ was different. All the crabs died in only 10 minutes at 40℃, while they died after 3 days and 7 days at 35 ℃ and 30℃, respectively. In addition to normal temperature conditions, minimum survival time of the juvenile crabs of <em>E. sinensis</em> at other temperature condition was no more than 24 h. Before the 8th day, the death rate at 30℃ and normal temperature was different, change of turning slope for concentration of NH₃-N and TN was contrary. Under normal temperature, the behavior of abdomen extension was not observed in juvenile crabs but the percentage time of abdomen extension was relatively long at 25℃. This research studied the influence of temperature stress on the survival of juvenile crabs of <em>E. sinensis</em> to provide information reference for the production and transportation of juvenile crab of<em> E. sinensis</em><em>.</em></p> Eriocheir sinensis, Temperature stress, Survival, Behavior responsed 763 774 http://jifro.ir/browse.php?a_code=A-10-2355-1&slc_lang=en&sid=1 J Peng pengjiao0115@163.com 100319475328460030975 100319475328460030975 No Key Laboratory of Forestry Remote Sensing Based Big Data & Ecological Security for Hunan Province, Central South University of Forestry and Technology, Changsha 410004, China Y.L Zhao 100319475328460030976 100319475328460030976 No Key Laboratory of Forestry Remote Sensing Based Big Data & Ecological Security for Hunan Province, Central South University of Forestry and Technology, Changsha 410004, China Z.G Xu 100319475328460030977 100319475328460030977 Yes Engineering Research Center for Internet of Animals, Changsha 410128, China B.Q Liu 100319475328460030978 100319475328460030978 No Engineering Research Center for Internet of Animals, Changsha 410128, China C.C Duan 100319475328460030979 100319475328460030979 No Engineering Research Center for Internet of Animals, Changsha 410128, China Y.C. Tang 100319475328460030980 100319475328460030980 No Key Laboratory of Forestry Remote Sensing Based Big Data & Ecological Security for Hunan Province, Central South University of Forestry and Technology, Changsha 410004, China