关键词: 红小丑鱼, 耗氧率, 窒息点, 体长, 水温

Abstract: Amphiprion frenatus with body length of 2\|7 cm were used as materials to investigate the relation between the growth indicators including unit body length oxygen consumption rate， unit body weight oxygen consumption rate and asphyxia point， and the body length（body weight） or temperature by a static method of breathing room. The results indicated the unit body length was positively correlated with oxygen consumption rate， and the regression equation at 26－30 ℃ and 22 ℃ was ORL=0.074L1.111 and ORL=0.044L1.127， respectively. The unit body length oxygen consumption rate was quite different due to the body length under different temperature， indicating that the unit body length oxygen consumption rate of A.frenatus with body length of 2 and 7 cm firstly increased then decreased with the increasing temperature， while that of A.frenatus with body length of 3.5 and 5 cm increased. But there was no significant difference in the unit body length oxygen consumption rate of A.frenatus in the same body length group at 26 and 30 ℃， so 26\|30 ℃ was the optimum breeding temperature. The asphyxia point was （1.268±0.219） mg·L-1， which was irrelevant to breeding temperature or body length. The unit body weight oxygen consumption rate was 0.387—2217 mg·h-1·g-1， which was positively correlated with temperature， but negatively correlated with breeding temperature. The Q10 values of A.frenatus in different groups were all above 2 at 22\|26 ℃， but the Q10 values of the 2 cm group and 7 cm group were 0.85 and 1.30 at 26\|30 ℃， which was below 2. In conclusion， A.frenatus showed weak adaptability to water temperature changes， so the water temperature should be maintained stably in the process of breeding， especially at 26 ℃. The breeding of A.frenatus could be carried out according to the body length， moreover， the reasonable culture and loading density could be determined in accordance with its body length and the corresponding unit body length oxygen consumption rate.

Key words: Amphiprion frenatus, oxygen consumption rate, asphyxia point, body length, breeding temperature