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Table 3 Correlations coefficient between different water quality parameters in the examined pond with or without probiotic

From: Influence of probiotics on water quality in intensified Litopenaeus vannamei ponds under minimum-water exchange

Parameters Total Vibrio log (CFU mL−1) Temperature (ºC) Dissolved oxygen (mg L−1) pH Salinity (g L−1) Organic matter (mg L−1) NH3 (mg L−1)
  Probiotics − 0.622** 0.074 0.536** − 0.452** 0.008 − 0.451** − 0.472**
Total Vibrio log (CFU mL−1) − 0.688** 1 0.132 − 0.348** 0.537** − 0.324** 0.269** 0.511**
Temperature (ºC) 0.040 0.127 1 − 0.066 0.028 0.031 − 0.384** 0.021
Dissolved oxygen (mg L−1) 0.708** − 0.480** − 0.057 1 − 0.354** 0.304** − 0.373** − 0.604**
pH − 0.289** 0.472** 0.025 − 0.180* 1 − 0.584** 0.301** 0.527**
Salinity (g L−1) − 0.049 − 0.262** 0.034 0.253** − 0.612** 1 − 0.070 − 0.549**
Organic matter (mg L−1) − 0.037 0.116 − 0.447** 0.154* 0.098 − 0.070 1 0.129
NH3 (mg L−1) − 0.498** 0.554** 0.032 − 0.659** 0.476** − 0.511** − 0.086 1
Control (non treated ponds)
 Total Vibrio log (CFU mL−1) 1 0.255** − 0.112 0.424** − 0.431** 0.055 0.315**
 Temperature (ºC)   1 − 0.056 0.039 0.031 − 0.488** 0.062
 Dissolved oxygen (mg L−1)    1 0.033 0.545** 0.048 − 0.651**
 pH     1 − 0.677** 0.062 0.405**
 Salinity (g L−1)      1 − 0.085 − 0.621-**
 Organic matter (mg L−1)       1 − 0.156
 NH3 (mg L−1)       − 0.156 1
  1. Probiotics: upper diagonal represents single spp. and lower one represents multi spp.
  2. *Correlation is significant at the 0.05 level (2-tailed)
  3. **Correlation is significant at the 0.01 level (2-tailed)