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对暗纹东方鱼屯两个规格鱼苗的耗氧量、耗氧率和窒息点进行了测定。结果显示 :在水温 31～34℃ ,pH 6 5～ 6 8条件下 ,平均全长 2 36cm、体重 0 4 2 9g的鱼苗 2 4h平均耗氧量 0 32 1mg/ (尾·h) ,耗氧率 1 14 9mg/ (g·h) ,窒息点 1 30 9mg/L ;平均全长 3 4 9cm、体重 0 5 6 9g的鱼苗 2 4h平均耗氧量 0 837mg/ (尾·h) ,耗氧率 0 96 8mg/ (g·h) ,窒息点 1 4 86mg/L。
Oxygen consumption, oxygen consumption rate and suffocation of two fry fish in the obelisk were measured. The results showed that the average oxygen consumption of fish with the average length of 2 36cm and the body weight of 0 429g at 24 ℃ for 6 h was 0 32 1mg / (h · h) at 31 ~ 34 ℃ and pH 6 5 ~ 6 8, The average daily oxygen consumption of fish fry with the average length of 399cm and the body weight of 0.559g was 0 837mg / (h · h), oxygen consumption rate was 1449mg / (g · h) and the asphyxiation point was 1309mg / L Rate 0 96 8mg / (g · h), suffocation point 1486mg / L.