SalinityOpenoceanAquaticecosystemsDesertEarth’ssurfaceSalt marshesandmangroveforestsTundraBogLimneticzoneTaigaBiomesChaparralPhoticzoneNetprimaryproductionIntertidalFloodPlainTemperateGrasslandBrackishAphoticzoneBenthiczoneGrossprimaryproductionLittoralzoneEstuariesFreshwaterwetlandsLakesandpondsFree!