Region: Mesotrophic Water

                        st20                st21           st21/st20         
          Prod     mean     stdev      mean     stdev      mean     stdev
       nLw_412     1.367     0.052     1.282     0.053     0.938     0.004
       nLw_443     1.294     0.039     1.180     0.041     0.912     0.005
       nLw_490     1.066     0.027     0.991     0.029     0.929     0.004
       nLw_510     0.700     0.017     0.680     0.018     0.972     0.002
       nLw_555     0.367     0.010     0.381     0.010     1.040     0.002
       nLw_670     0.047     0.002     0.046     0.002     0.978     0.002
       chlor_a     0.246     0.015     0.324     0.022     1.321     0.017
        eps_78     1.040     0.006     1.040     0.006     1.000     0.000
       tau_865     0.132     0.005     0.132     0.005     1.001     0.000
  angstrom_510     0.345     0.039     0.345     0.039     0.999     0.001