摘要
在水温19~28℃下,测定了匙吻鲟Polyodon spathula(14.98 g±1.35 g^156.42 g±23.46 g)的耗氧率和窒息点。结果表明:匙吻鲟幼鱼耗氧率有昼夜节律性,一昼夜出现两个高峰值,分别在8:00和18:00,低峰值出现在0:00。耗氧率(Y)与水温(T)呈显著正相关,Y=0.2918T0.2818(R2=0.9477);耗氧率(Y)与鱼体重(W)呈显著负相关,Y=0.2924W-0.1663(R2=0.9326);耗氧量(Y′)则与体重呈显著正相关,Y′=4.675W1.5136(R2=0.9332);匙吻鲟的窒息点为(2.813±0.056)^(3.468±0.072)mg/L(以O2计)。
The standard oxygen consumption rate and asphyxial point of juvenile（ 14.98 g ± 1.35 g - 156.42 g ±23.46 g） paddlefish （Polyodon spathula）were measured at 19 -28 ℃. The diurnal rhythm of the standard oxygen consumption was observed in the paddlefish, with the peak at 8：00 and 18：00, and the minimum at 0：00. The correlation between standard oxygen consumption rate（Y） and water temperature （T）was represented by the equation Y = 0. 2918T^0. 2818, and the standard oxygen consumption rate（Y） decreased with the body weight（W） increasing while the standard oxygen consumption （Y＇） increased with the body weight increasing, the correlation formulas were expressed as Y =0. 2924W^-0.1663 and Y＇ =4. 675W^1.5136 The asphyxial point was found to be （2. 813 ± 0. 056） - （3. 468 ± 0.072） mg/L.
出处
《大连水产学院学报》
CSCD
北大核心
2009年第4期359-361,共3页
Journal of Dalian Fisheries University
基金
农业部"948"引进国际先进农业科学技术资助项目(973094)
黑龙江省自然科学基金资助项目(C2007-30)
哈尔滨市科技攻关项目(2006AA6BN123)
哈尔滨市优秀青年科技创新基金资助项目(2006RFQYN063)
关键词
匙吻鲟
耗氧率
窒息点
paddlefish
standard oxygen consumption rate
asphyxial point
