Table 1 in Survival, growth and metabolic parameters of silver catfish, Rhamdia quelen, juveniles exposed to different waterborne nitrite levels

Table 1. Effect of waterborne nitrite on weight, length, biomass and specific growth rate of silver catfish juveniles. N = 3 tanks.Values are expressed as mean ± SEM. Different letters in the rows indicate significant difference among treatments by one-way ANOVA and Tukey test (p<0.05).* = only one replicate; ** = all fish dead. Time (days)Nitrite (mg.L -1)0.060.46 1.191.191.52Weight (g)203.61±0.20 a3.72± 0.33 a0.33 a 3.89±0.33 a3.62±0.23 a404.42±0.27 a4.34±0.43 a0.43 a 4.42±0.46 a**Length (mm)2063.0±1.0 a63.4±1.8 a 63.8±1.5 a1.8 a 63.8±1.5 a*62.8±1.44072.9±0.15 a66.8±2.1 a 66.1±3.6 a2.1 a 66.1±3.6 a**Biomass (g)20± a 36.12 1.37± a 36.83 1.89a ± a 1.89 38.92 2.2410.73±18.58 b40± a 44.20 2.36± a 43.37 2.64a ± a 2.64 44.17 3.33b **0.0Specific growth rate (%.day -1)200.97 ±0.11 a1.06 ±0.18 a1.06 ±0.18 a 1.27 ±0.23 a*0.70401.98 ±0.24 a1.82 ±0.25 a1.82 ±0.25 a 1.89 ±0.33 a**