Abstract: The oxygen consumption rate and the effects of body weight and temperature on the asphyxiant point of the red swamp crawfish, Procambrus clarkii caught from ditches around the college were determined from April to May, 2002. The results showed that the oxygen consumption rates of juvenile crawfish was (0.427±0.068) mg/(g·h) at a water temperature of (20.0±0.5)℃, which was significantly larger than that of adult crawfish with (0.145±0.014) mg/(g·h) (P<0.01). There was a diurnal rhythm of oxygen consumption rate of the crawfish. The average oxygen consumption rate was (0.156±0.008) mg/(g·h) in an adult crawfish during nocturnal 12 h, significantly larger than that during diurnal 12 h with (0.134±0.009) mg/(g·h). For juvenile crawfish, the nocturnal oxygen consumption was also larger remarkably than the diurnal one which were (0.484±0.011) mg/(g·h) and (0.369±0.051)mg/(g·h) respectively. There were 3 maximum and 4 minimum values in oxygen consumption for both juveniles and adults during a day and night. The asphyxiant point decreased with increase in body weight, and increased linearly with the increasing water temperature.
温小波, 库夭梅, 罗静波. 克氏原螯虾耗氧率及窒息点的研究[J]. 大连海洋大学学报, 2003, 18(3): 170-174.
WEN Xiao bo, KU Yao mei, LUO Jing bo. Studies on the oxygen consumption rate and asphyxiant point of the red swamp crawfish, Procambrus clarkii. Journal of Dalian Ocean University, 2003, 18(3): 170-174.
2003, Vol. 18 
