Region: SIO

                                   sci02m                aci02m          aci02m/sci02         
                     Prod       mean       stdev        mean       stdev        mean       stdev
          chl_oc4,chl_oc3     0.07058     0.02171     0.07258     0.01942     1.03964     0.06703
                   chl_ci     0.08351     0.02398     0.08471     0.02478     1.01267     0.03841