白鱀豚饲养池水质某些理化因子的变动规律  

CHANGES OF CERTAIN PHYSICAL AND CHEMICAL FACTORS IN A POOL REARING CHINESE RIVER DOLPHIN, LIPOTES VEXILLIFER

作　　者：王克雄[1] 官之梅[1] 

机构地区：[1]中国科学院水生生物研究所

出　　处：《水生生物学报》1990年第1期32-39,共8页Acta Hydrobiologica Sinica

摘　　要：自来水中的低量余氯对白暨豚无明显的刺激作用。豚池水温的变化情况与长江中、下游相似,极温对豚有不利影响。不同温度下,池水中磷酸盐含量的日增加率有显著差异,铵氮和硝酸盐氮的日增加系数相近,分别为0.327和0.2468,而亚硝酸盐氮的日增加系数在0.397—0.539之间,受温度的影响较大。池水有机物耗氧量增加不显著,含量与时间的相关式符合Y=aX^b型。缺少阳光照射是池水无机氮化合物增加较快、有机物分解较慢的原因之一。Regression formulas relating water retention period to oxygen consumption. and contents of inorganic nitrogen and phosphate in a shaded dolphin pool are presented. The time exponent of the consumed oxygen is 0.2285. The diel increasing coefficients of ammonia, nitrate are 0.327 and 0.2468, respectively, while the nitrite is in the range of 0.397—0.539. The diel increasing rate of phosphate is 0.2—0.6. To improve living condition for the dolphin, it is necessary to regulate the NO_2-N content in the pool water not higher than 0.1ppm, although the residual chorine in supplied tap water was found harmless to the animal.

关 键 词：白暨豚 人工饲养 水质 

分 类 号：Q959.841[生物学—动物学]