淡水渔业
淡水漁業
담수어업
FRESHWATER FISHERIES
2014年
4期
101-104
,共4页
朱永久%姚志平%吴兴兵%何勇凤%杨德国%詹会祥
硃永久%姚誌平%吳興兵%何勇鳳%楊德國%詹會祥
주영구%요지평%오흥병%하용봉%양덕국%첨회상
鲈鲤( Percocypris pingi pingi)幼鱼%耗氧率%窒息点
鱸鯉( Percocypris pingi pingi)幼魚%耗氧率%窒息點
로리( Percocypris pingi pingi)유어%모양솔%질식점
Percocypris pingi pingi juvenile%oxygen consumption rate%asphyxiation point
采用流水呼吸室测定了不同温度下鲈鲤( Percocypris pingi pingi)幼鱼的耗氧率和窒息点。结果显示,在14℃、18℃、22℃和26℃水温条件下,鲈鲤幼鱼(体重3.5~4.7 g,全长7.9~8.8 cm )耗氧率分别为0.2324 mg/(g· h)、0.2479 mg/(g· h)、0.3038 mg/(g· h)和0.4212 mg/(g· h),且耗氧率(y)随温度(t)的升高而逐渐增加, y=0.016 t-0.1,(R2=0.764, P<0.01),而各温度下鲈鲤幼鱼(体重56.1~62.7 g,体长6.4~7.2 cm)的窒息点则分别为(0.557±0.023) mg/L、(0.622±0.019) mg/L,(0.767±0.085) mg/L和(0.772±0.055) mg/L,幼鱼窒息点随水温升高逐渐升高;20℃水温条件下,鲈鲤幼鱼(体重3.5~4.7 g,全长7.9~8.8 cm)耗氧率的昼夜变化规律为白天((0.437±0.069) mg/(g· h))高于夜晚((0.339±0.071) mg/(g· h))(P<0.05)。
採用流水呼吸室測定瞭不同溫度下鱸鯉( Percocypris pingi pingi)幼魚的耗氧率和窒息點。結果顯示,在14℃、18℃、22℃和26℃水溫條件下,鱸鯉幼魚(體重3.5~4.7 g,全長7.9~8.8 cm )耗氧率分彆為0.2324 mg/(g· h)、0.2479 mg/(g· h)、0.3038 mg/(g· h)和0.4212 mg/(g· h),且耗氧率(y)隨溫度(t)的升高而逐漸增加, y=0.016 t-0.1,(R2=0.764, P<0.01),而各溫度下鱸鯉幼魚(體重56.1~62.7 g,體長6.4~7.2 cm)的窒息點則分彆為(0.557±0.023) mg/L、(0.622±0.019) mg/L,(0.767±0.085) mg/L和(0.772±0.055) mg/L,幼魚窒息點隨水溫升高逐漸升高;20℃水溫條件下,鱸鯉幼魚(體重3.5~4.7 g,全長7.9~8.8 cm)耗氧率的晝夜變化規律為白天((0.437±0.069) mg/(g· h))高于夜晚((0.339±0.071) mg/(g· h))(P<0.05)。
채용류수호흡실측정료불동온도하로리( Percocypris pingi pingi)유어적모양솔화질식점。결과현시,재14℃、18℃、22℃화26℃수온조건하,로리유어(체중3.5~4.7 g,전장7.9~8.8 cm )모양솔분별위0.2324 mg/(g· h)、0.2479 mg/(g· h)、0.3038 mg/(g· h)화0.4212 mg/(g· h),차모양솔(y)수온도(t)적승고이축점증가, y=0.016 t-0.1,(R2=0.764, P<0.01),이각온도하로리유어(체중56.1~62.7 g,체장6.4~7.2 cm)적질식점칙분별위(0.557±0.023) mg/L、(0.622±0.019) mg/L,(0.767±0.085) mg/L화(0.772±0.055) mg/L,유어질식점수수온승고축점승고;20℃수온조건하,로리유어(체중3.5~4.7 g,전장7.9~8.8 cm)모양솔적주야변화규률위백천((0.437±0.069) mg/(g· h))고우야만((0.339±0.071) mg/(g· h))(P<0.05)。
The oxygen consumption rate and asphyxiation point of juvenile Percocypris pingi pingi were measured by the method of respiratory chamber under different temperature.The result showed that , under different temperature of 14 ℃, 18 ℃, 22 ℃and 26 ℃, the oxygen consumption rate of juvenile P.pingi pingi were 0.232 4 mg/g· h, 0.247 9 mg/g· h, 0.303 8 mg/g· h and 0.4212 mg/g· h, respectively; and the oxygen consumption rate ( y) increased gradually when temperature (t) raised, y=0.016t-0.1, (R2 =0.764, P<0.01).The asphyxiation point of juvenile P.pingi pingi were (0.557 ±0.023) mg/L, (0.622 ±0.019) mg/L, (0.767 ±0.085) mg/L and (0.772 ±0.055) mg/L, re-spectively; and the asphyxiation point raised as temperature went up.Under the temperature of 20 ℃, the mean oxygen consumption rate of juvenile P.pingi pingi in day ((0.437 ±0.069) mg/g· h) was significantly higher than that in night ((0.339 ±0.071) mg/g· h) (P<0.05).