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中华鲟与背角无齿蚌和鲢鳙混养的池水透明度(SD)对比试验表明,1#池(对照)、2#池(挂养背角无齿蚌)、3#池(混养鲢鳙)透明度平均值分别为11.92、16.45、17.45 cm,分别较试验本底值依次提高26.69%、56.67%、66.19%.2#、3#池的透明度显著大于1#池,最高可达1倍.3个池透明度与各水质指标关系的Panel Data模型分别为:SD1=-0.0072 TSS+0.8353 NH 4+-N-2.1711 TN+0.6195 TP-0.0405 COD+16.7815,SD2=0.0030 TSS+3.8864 NH 4+-N+0.1893 TN-12.4585 TP***-0.0104 COD+24.5306,SD3=0.0381 TSS*+3.7821 NH 4+-N+0.6003 TN-15.0444TP***-0.4078 COD**+34.2992(*、**、***分别表示显著、较显著、极显著相关).TP是影响中华鲟养殖池透明度的主要指标,NH 4+-N、TN、COD是影响透明度的间接指标,而TSS是影响透明度的直接指标.在悬浮物浓度较高、水体浑浊的中华鲟养殖池水体中,鲢鳙的放养对透明度的提高效果显著优于背角无齿蚌.
The comparative experiments of pool water transparency (SD) between Chinese sturgeon and Anodon mussel and silver carp and bighead carp showed that the water quality of 1 # pool (control), 2 # pool (Anodonta harris), 3 # pool鳙) were 11.92, 16.45 and 17.45 cm, respectively, which were respectively 26.69%, 56.67% and 66.19% higher than the background values of the experiments. The transparency of # 2 and # 3 pools was significantly greater than that of 1 # pools and up to 1 times .3 Panel Data model of the relationship between the transparency of the pool and each water quality index is respectively: SD1 = -0.0072 TSS + 0.8353 NH4 + -N-2.1711 TN + 0.6195 TP-0.0405 COD + 16.7815 SD2 = 0.0030 TSS + 3.8864 NH4 + -N + 0.1893 TN-12.4585 TP *** - 0.0104 COD + 24.5306 SD3 = 0.0381 TSS * + 3.7821 NH4 + -N + 0.6003 TN-15.0444TP *** - 0.4078 COD ** + 34.2992 (*, ** , And *** respectively indicate significant, significant and extremely significant correlations.) TP is the main index that affects the transparency of the Chinese sturgeon culture ponds. NH 4 + -N, TN and COD are indirect indicators that affect transparency. TSS is a factor that affects transparency Direct indicators.In the water with high suspended matter concentration and turbid water of Chinese sturgeon, the stocking effect of silver carp and bighead carp was significantly better than that of the anodontia.