| The paper took waild Pseudocrossocheilus bamaensis (Fang)as test objects, with body weight ranged from 10.15 g to 11.50g. The water temperature was set up four gradient with 10, 15, 20 25℃. The experiment was conducted to evaluate the effects of water temperature on oxygen consumption rate (OR), ammonia excretion rate (NR) and CO2 excretionrate (CR) of starved P. bamaensis in a selfmade closed respiration instrument, and discussed the energy materials in the condition of hunger and temperature effect on energy metabolism through analyzing O：N ratio (O：N), respiration quotient (RQ) and energy metabolic rate (Rm). The results showed that temperature had significant effect on respiratory metabolism of P. bamaensis. The values of OR, NR and CR increased with rising of temperature, the effects of temperature were significant for both of them, except for the values of OR between 10℃and 15℃, and except for the values of NR among 10℃, 15℃and 20℃. The values of OR, NR and CR between day and night was obvious, and belong to this type which prefered to work in the night; the values of O：N ranged from 24 to 29, varied with temperature, but not obvious. The mean respiratory quotient value ranged from 0.768 to 0.806, indicating that this fish utilized protein-lipid-dominated metabolism. |
