Why do most aquatic primary producers live in uppermost regions of deep lakes,oceans,and ponds?
Most primary producers are photoautotrophs, meaning they make their own food using energy from the sun. The tops of bodies of water get the most sun. And it is photoautotroph (in response to Esther). There are chemoautotrophs that live at the bottom of ocean trenches that create their own food using the energy from steam vents, not the sun. Sorry if that sounded angry, I didn’t intend it to.
