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在 2 4℃水温条件下 ,对蓝鳃太阳鱼 (Lepomismacrochirus)苗种的耗氧率与窒息点进行了测定。结果表明 :蓝鳃太阳鱼苗种的耗氧率和窒息点随鱼体的增大而降低 ,平均体重0 62g的鱼苗耗氧率 0 645mg/(g·h) ,窒息点 0 5 90mg/L ;平均体重 31 90g的鱼种耗氧率0 1 62mg/(g·h) ,窒息点 0 5 0 0mg/L。蓝鳃太阳鱼苗种的耗氧率有明显的昼夜变化节律。
The oxygen consumption rate and asphyxia point of Lepomismacrochirus were determined at 24 ℃. The results showed that the oxygen consumption rate and asphyxia point of blue gill sunfish decreased with the increase of fish body, oxygen consumption rate of 0 645mg / (g · h) and 0 5 90mg / L of suffocation point of 0 62g body weight; The average oxygen consumption rate of 31 90g species was 0 1 62mg / (g · h) and suffocation point 0 0 0 0 mg / L. Oxygen consumption rate of blue gill sunfish has obvious circadian rhythm.