Tab. 5 in Effects of reservoirs water level variations on fish recruitment
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Tab. 5. Correlations between the hydrological parameters and the abundance of juveniles in the Machadinho reservoir, considering the entire sampling period (RP2 to RP12) and the period that excludes the first years after the formation of the reservoir (RP5 to RP12). 1 VWL = Variation (standard deviation) of the reservoir water level during the reproductive period. 2 AWL = Average value of the reservoir water level during the reproductive period. 3 VSV = Variation (standard deviation) of the reservoir storage volume during the reproductive period. 4 ASV = Average value of the reservoir storage volume during the reproductive period. RP2-RP12RP5-RP12RP2-RP12RP5-RP12VWL1AWL2VWLAWLVSV3ASV4VSVASVNest-0.460.38-0.490.53-0.440.37-0.470.52Spawning in macrophytes-0.15-0.04-0.180.01-0.14-0.05-0.170.00Semi-dense eggs-0.090.36-0.520.82-0.080.36-0.500.82Demersal eggs-0.360.17-0.21-0.16-0.350.16-0.21-0.16Cyprinus carpio-0.26-0.02-0.300.03-0.26-0.03-0.290.02Eigenmannia virescens0.30-0.060.32-0.050.31-0.050.34-0.05Geophagus brasiliensis-0.460.38-0.490.53-0.440.37-0.470.52Acestrorhynchus pantaneiro-0.480.25-0.660.40-0.470.24-0.650.39Apareiodon affinis-0.150.18-0.280.34-0.160.19-0.280.34Astyanax aff. fasciatus-0.300.57-0.340.53-0.280.58-0.330.54Astyanax lacustris-0.10-0.36-0.14-0.37-0.12-0.37-0.16-0.38Piabarchus stramineus0.080.230.550.030.090.230.580.03Oligosarcus jenynsii-0.200.390.220.03-0.170.390.240.02Pimelodus maculatus-0.52-0.320.56-0.240.60-0.310.57-0.23Rhamdia quelen-0.520.79-0.680.89-0.490.79-0.660.89Steindachnerina brevipinna-0.550.43-0.650.70-0.540.42-0.630.70Total of juveniles-0.550.43-0.360.21-0.420.40-0.370.16
表5 马查迪尼奥水库水文参数与幼鱼丰度的相关性分析,分别覆盖全采样周期(RP2至RP12)以及排除水库建成初期年份的周期(RP5至RP12)。 1. VWL(水库水位变化量,Variation of reservoir water level):繁殖期水库水位的标准差 2. AWL(水库平均水位,Average reservoir water level):繁殖期水库的平均水位 3. VSV(水库库容变化量,Variation of reservoir storage volume):繁殖期水库库容的标准差 4. ASV(水库平均库容,Average reservoir storage volume):繁殖期水库的平均库容 各研究类群与水文参数的相关系数如下(列顺序依次为RP2-RP12周期的VWL、AWL、VSV、ASV,以及RP5-RP12周期的VWL、AWL、VSV、ASV): 巢:-0.46、0.38、-0.49、0.53、-0.44、0.37、-0.47、0.52 水生植物中产卵:-0.15、-0.04、-0.18、0.01、-0.14、-0.05、-0.17、0.00 半黏性卵:-0.09、0.36、-0.52、0.82、-0.08、0.36、-0.50、0.82 沉性卵:-0.36、0.17、-0.21、-0.16、-0.35、0.16、-0.21、-0.16 鲤(Cyprinus carpio):-0.26、-0.02、-0.30、0.03、-0.26、-0.03、-0.29、0.02 绿平胸电鳗(Eigenmannia virescens):0.30、-0.06、0.32、-0.05、0.31、-0.05、0.34、-0.05 巴西珠母丽鱼(Geophagus brasiliensis):-0.46、0.38、-0.49、0.53、-0.44、0.37、-0.47、0.52 潘塔诺狼牙脂鲤(Acestrorhynchus pantaneiro):-0.48、0.25、-0.66、0.40、-0.47、0.24、-0.65、0.39 异齿四齿鲃(Apareiodon affinis):-0.15、0.18、-0.28、0.34、-0.16、0.19、-0.28、0.34 类宽带脂鲤(Astyanax aff. fasciatus):-0.30、0.57、-0.34、0.53、-0.28、0.58、-0.33、0.54 湖脂鲤(Astyanax lacustris):-0.10、-0.36、-0.14、-0.37、-0.12、-0.37、-0.16、-0.38 黄身拟四眼脂鲤(Piabarchus stramineus):0.08、0.23、0.55、0.03、0.09、0.23、0.58、0.03 詹氏寡脂鲤(Oligosarcus jenynsii):-0.20、0.39、0.22、0.03、-0.17、0.39、0.24、0.02 斑鳍真鮰(Pimelodus maculatus):-0.52、-0.32、0.56、-0.24、0.60、-0.31、0.57、-0.23 昆兰氏半海鲶(Rhamdia quelen):-0.52、0.79、-0.68、0.89、-0.49、0.79、-0.66、0.89 短鳍斯氏脂鲤(Steindachnerina brevipinna):-0.55、0.43、-0.65、0.70、-0.54、0.42、-0.63、0.70 幼鱼总丰度:-0.55、0.43、-0.36、0.21、-0.42、0.40、-0.37、0.16



