| Relative growth (g. g-1.d-1)       Mean    ± S.D. | 
       
      
        | Arsenic ions con. mg/L                  Days | 
       
      
        |   | 
        3 | 
        9 | 
        15 | 
       
      
        | 0.010 | 
        1.06 ± 0.01 | 
        1.14 ± 0.05 | 
        1.18 ± 0.01 | 
       
      
        | 0.025 | 
        1.11 ± 0.03 | 
        1.25 ± 0.03 | 
        1.28 ± 0.04 | 
       
      
        | 0.050 | 
        1.23 ± 0.02 | 
        1.26 ± 0.04 | 
        1.30 ± 0.03 | 
       
      
        | 0.10 | 
        1.25 ± 0.01 | 
        1.30 ± 0.02 | 
        1.34 ± 0.06 | 
       
      
        | Bio-concentration factor | 
       
      
        | 0.010 | 
        185 ± 1.24 | 
        207 ± 1.45 | 
        226 ± 0.65 | 
       
      
        | 0.025 | 
        166 ± 0.54 | 
        199 ± 0.62 | 
        230 ± 1.32 | 
       
      
        | 0.050 | 
        226 ± 1.44 | 
        235 ± 1.11 | 
        302 ± 2.05 | 
       
      
        | 0.10 | 
        227 ± 0.37 | 
        249 ± 2.21 | 
        323 ± 1.25 | 
       
     
      S.D. = Standard deviation 
    The standard deviation has been obtained for n=3 |