Region: Oligotrophic Water

                                   sci04m                aci04m          aci04m/sci04         
                     Prod       mean       stdev        mean       stdev        mean       stdev
          chl_oc4,chl_oc3     0.05833     0.00605     0.05689     0.00546     0.97694     0.04489
                   chl_ci     0.07408     0.00650     0.07310     0.00663     0.98674     0.01492