Region: Mesotrophic Water

                        st19                tt09           tt09/st19         
          Prod     mean     stdev      mean     stdev      mean     stdev
       nLw_412     1.334     0.048     1.138     0.062     0.853     0.027
       nLw_443     1.267     0.037     1.086     0.069     0.856     0.034
       nLw_490     1.042     0.026     0.951     0.054     0.912     0.033
       nLw_510     0.680     0.019     0.491     0.024     0.722     0.019
       nLw_555     0.355     0.012     0.356     0.016     1.003     0.025
       nLw_670     0.044     0.002     0.042     0.002     0.964     0.044
       chlor_a     0.251     0.013     0.302     0.026     1.201     0.056
        eps_78     1.046     0.008     1.061     0.006     1.015     0.007
       tau_865     0.121     0.005     0.114     0.005     0.939     0.024
  angstrom_510     0.382     0.051     0.398     0.033     1.051     0.108